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44
45#include <acpi/acpi.h>
46#include "accommon.h"
47#include "acparser.h"
48#include "amlcode.h"
49#include "acdispat.h"
50#include "acinterp.h"
51#include "acnamesp.h"
52#include "acevents.h"
53#include "actables.h"
54
55#define _COMPONENT ACPI_DISPATCHER
56ACPI_MODULE_NAME("dsopcode")
57
58
59static acpi_status
60acpi_ds_execute_arguments(struct acpi_namespace_node *node,
61 struct acpi_namespace_node *scope_node,
62 u32 aml_length, u8 * aml_start);
63
64static acpi_status
65acpi_ds_init_buffer_field(u16 aml_opcode,
66 union acpi_operand_object *obj_desc,
67 union acpi_operand_object *buffer_desc,
68 union acpi_operand_object *offset_desc,
69 union acpi_operand_object *length_desc,
70 union acpi_operand_object *result_desc);
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87static acpi_status
88acpi_ds_execute_arguments(struct acpi_namespace_node *node,
89 struct acpi_namespace_node *scope_node,
90 u32 aml_length, u8 * aml_start)
91{
92 acpi_status status;
93 union acpi_parse_object *op;
94 struct acpi_walk_state *walk_state;
95
96 ACPI_FUNCTION_TRACE(ds_execute_arguments);
97
98
99
100
101 op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
102 if (!op) {
103 return_ACPI_STATUS(AE_NO_MEMORY);
104 }
105
106
107
108 op->common.node = scope_node;
109
110
111
112 walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
113 if (!walk_state) {
114 status = AE_NO_MEMORY;
115 goto cleanup;
116 }
117
118 status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
119 aml_length, NULL, ACPI_IMODE_LOAD_PASS1);
120 if (ACPI_FAILURE(status)) {
121 acpi_ds_delete_walk_state(walk_state);
122 goto cleanup;
123 }
124
125
126
127 walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP;
128 walk_state->deferred_node = node;
129
130
131
132 status = acpi_ps_parse_aml(walk_state);
133 if (ACPI_FAILURE(status)) {
134 goto cleanup;
135 }
136
137
138
139 op->common.node = node;
140 acpi_ps_delete_parse_tree(op);
141
142
143
144 op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
145 if (!op) {
146 return_ACPI_STATUS(AE_NO_MEMORY);
147 }
148
149 op->common.node = scope_node;
150
151
152
153 walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
154 if (!walk_state) {
155 status = AE_NO_MEMORY;
156 goto cleanup;
157 }
158
159
160
161 status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
162 aml_length, NULL, ACPI_IMODE_EXECUTE);
163 if (ACPI_FAILURE(status)) {
164 acpi_ds_delete_walk_state(walk_state);
165 goto cleanup;
166 }
167
168
169
170 walk_state->deferred_node = node;
171 status = acpi_ps_parse_aml(walk_state);
172
173 cleanup:
174 acpi_ps_delete_parse_tree(op);
175 return_ACPI_STATUS(status);
176}
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191acpi_status
192acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
193{
194 union acpi_operand_object *extra_desc;
195 struct acpi_namespace_node *node;
196 acpi_status status;
197
198 ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc);
199
200 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
201 return_ACPI_STATUS(AE_OK);
202 }
203
204
205
206 extra_desc = acpi_ns_get_secondary_object(obj_desc);
207 node = obj_desc->buffer_field.node;
208
209 ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
210 (ACPI_TYPE_BUFFER_FIELD, node, NULL));
211 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
212 acpi_ut_get_node_name(node)));
213
214
215
216 status = acpi_ds_execute_arguments(node, node->parent,
217 extra_desc->extra.aml_length,
218 extra_desc->extra.aml_start);
219 return_ACPI_STATUS(status);
220}
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235acpi_status
236acpi_ds_get_bank_field_arguments(union acpi_operand_object *obj_desc)
237{
238 union acpi_operand_object *extra_desc;
239 struct acpi_namespace_node *node;
240 acpi_status status;
241
242 ACPI_FUNCTION_TRACE_PTR(ds_get_bank_field_arguments, obj_desc);
243
244 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
245 return_ACPI_STATUS(AE_OK);
246 }
247
248
249
250 extra_desc = acpi_ns_get_secondary_object(obj_desc);
251 node = obj_desc->bank_field.node;
252
253 ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
254 (ACPI_TYPE_LOCAL_BANK_FIELD, node, NULL));
255 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
256 acpi_ut_get_node_name(node)));
257
258
259
260 status = acpi_ds_execute_arguments(node, node->parent,
261 extra_desc->extra.aml_length,
262 extra_desc->extra.aml_start);
263 return_ACPI_STATUS(status);
264}
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc)
280{
281 struct acpi_namespace_node *node;
282 acpi_status status;
283
284 ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc);
285
286 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
287 return_ACPI_STATUS(AE_OK);
288 }
289
290
291
292 node = obj_desc->buffer.node;
293 if (!node) {
294 ACPI_ERROR((AE_INFO,
295 "No pointer back to namespace node in buffer object %p",
296 obj_desc));
297 return_ACPI_STATUS(AE_AML_INTERNAL);
298 }
299
300 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Buffer Arg Init\n"));
301
302
303
304 status = acpi_ds_execute_arguments(node, node,
305 obj_desc->buffer.aml_length,
306 obj_desc->buffer.aml_start);
307 return_ACPI_STATUS(status);
308}
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc)
324{
325 struct acpi_namespace_node *node;
326 acpi_status status;
327
328 ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc);
329
330 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
331 return_ACPI_STATUS(AE_OK);
332 }
333
334
335
336 node = obj_desc->package.node;
337 if (!node) {
338 ACPI_ERROR((AE_INFO,
339 "No pointer back to namespace node in package %p",
340 obj_desc));
341 return_ACPI_STATUS(AE_AML_INTERNAL);
342 }
343
344 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n"));
345
346
347
348 status = acpi_ds_execute_arguments(node, node,
349 obj_desc->package.aml_length,
350 obj_desc->package.aml_start);
351 return_ACPI_STATUS(status);
352}
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
368{
369 struct acpi_namespace_node *node;
370 acpi_status status;
371 union acpi_operand_object *extra_desc;
372
373 ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc);
374
375 if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
376 return_ACPI_STATUS(AE_OK);
377 }
378
379 extra_desc = acpi_ns_get_secondary_object(obj_desc);
380 if (!extra_desc) {
381 return_ACPI_STATUS(AE_NOT_EXIST);
382 }
383
384
385
386 node = obj_desc->region.node;
387
388 ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
389 (ACPI_TYPE_REGION, node, NULL));
390
391 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
392 acpi_ut_get_node_name(node),
393 extra_desc->extra.aml_start));
394
395
396
397 status = acpi_ds_execute_arguments(node, node->parent,
398 extra_desc->extra.aml_length,
399 extra_desc->extra.aml_start);
400 if (ACPI_FAILURE(status)) {
401 return_ACPI_STATUS(status);
402 }
403
404
405
406 status = acpi_os_validate_address(obj_desc->region.space_id,
407 obj_desc->region.address,
408 (acpi_size) obj_desc->region.length,
409 acpi_ut_get_node_name(node));
410
411 if (ACPI_FAILURE(status)) {
412
413
414
415
416
417 ACPI_EXCEPTION((AE_INFO, status,
418 "During address validation of OpRegion [%4.4s]",
419 node->name.ascii));
420 obj_desc->common.flags |= AOPOBJ_INVALID;
421 status = AE_OK;
422 }
423
424 return_ACPI_STATUS(status);
425}
426
427
428
429
430
431
432
433
434
435
436
437
438
439acpi_status acpi_ds_initialize_region(acpi_handle obj_handle)
440{
441 union acpi_operand_object *obj_desc;
442 acpi_status status;
443
444 obj_desc = acpi_ns_get_attached_object(obj_handle);
445
446
447
448 status = acpi_ev_initialize_region(obj_desc, FALSE);
449 return (status);
450}
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469static acpi_status
470acpi_ds_init_buffer_field(u16 aml_opcode,
471 union acpi_operand_object *obj_desc,
472 union acpi_operand_object *buffer_desc,
473 union acpi_operand_object *offset_desc,
474 union acpi_operand_object *length_desc,
475 union acpi_operand_object *result_desc)
476{
477 u32 offset;
478 u32 bit_offset;
479 u32 bit_count;
480 u8 field_flags;
481 acpi_status status;
482
483 ACPI_FUNCTION_TRACE_PTR(ds_init_buffer_field, obj_desc);
484
485
486
487 if (buffer_desc->common.type != ACPI_TYPE_BUFFER) {
488 ACPI_ERROR((AE_INFO,
489 "Target of Create Field is not a Buffer object - %s",
490 acpi_ut_get_object_type_name(buffer_desc)));
491
492 status = AE_AML_OPERAND_TYPE;
493 goto cleanup;
494 }
495
496
497
498
499
500
501 if (ACPI_GET_DESCRIPTOR_TYPE(result_desc) != ACPI_DESC_TYPE_NAMED) {
502 ACPI_ERROR((AE_INFO,
503 "(%s) destination not a NS Node [%s]",
504 acpi_ps_get_opcode_name(aml_opcode),
505 acpi_ut_get_descriptor_name(result_desc)));
506
507 status = AE_AML_OPERAND_TYPE;
508 goto cleanup;
509 }
510
511 offset = (u32) offset_desc->integer.value;
512
513
514
515
516 switch (aml_opcode) {
517 case AML_CREATE_FIELD_OP:
518
519
520
521 field_flags = AML_FIELD_ACCESS_BYTE;
522 bit_offset = offset;
523 bit_count = (u32) length_desc->integer.value;
524
525
526
527 if (bit_count == 0) {
528 ACPI_ERROR((AE_INFO,
529 "Attempt to CreateField of length zero"));
530 status = AE_AML_OPERAND_VALUE;
531 goto cleanup;
532 }
533 break;
534
535 case AML_CREATE_BIT_FIELD_OP:
536
537
538
539 bit_offset = offset;
540 bit_count = 1;
541 field_flags = AML_FIELD_ACCESS_BYTE;
542 break;
543
544 case AML_CREATE_BYTE_FIELD_OP:
545
546
547
548 bit_offset = 8 * offset;
549 bit_count = 8;
550 field_flags = AML_FIELD_ACCESS_BYTE;
551 break;
552
553 case AML_CREATE_WORD_FIELD_OP:
554
555
556
557 bit_offset = 8 * offset;
558 bit_count = 16;
559 field_flags = AML_FIELD_ACCESS_WORD;
560 break;
561
562 case AML_CREATE_DWORD_FIELD_OP:
563
564
565
566 bit_offset = 8 * offset;
567 bit_count = 32;
568 field_flags = AML_FIELD_ACCESS_DWORD;
569 break;
570
571 case AML_CREATE_QWORD_FIELD_OP:
572
573
574
575 bit_offset = 8 * offset;
576 bit_count = 64;
577 field_flags = AML_FIELD_ACCESS_QWORD;
578 break;
579
580 default:
581
582 ACPI_ERROR((AE_INFO,
583 "Unknown field creation opcode 0x%02X",
584 aml_opcode));
585 status = AE_AML_BAD_OPCODE;
586 goto cleanup;
587 }
588
589
590
591 if ((bit_offset + bit_count) > (8 * (u32) buffer_desc->buffer.length)) {
592 ACPI_ERROR((AE_INFO,
593 "Field [%4.4s] at %u exceeds Buffer [%4.4s] size %u (bits)",
594 acpi_ut_get_node_name(result_desc),
595 bit_offset + bit_count,
596 acpi_ut_get_node_name(buffer_desc->buffer.node),
597 8 * (u32) buffer_desc->buffer.length));
598 status = AE_AML_BUFFER_LIMIT;
599 goto cleanup;
600 }
601
602
603
604
605
606
607 status = acpi_ex_prep_common_field_object(obj_desc, field_flags, 0,
608 bit_offset, bit_count);
609 if (ACPI_FAILURE(status)) {
610 goto cleanup;
611 }
612
613 obj_desc->buffer_field.buffer_obj = buffer_desc;
614
615
616
617 buffer_desc->common.reference_count = (u16)
618 (buffer_desc->common.reference_count +
619 obj_desc->common.reference_count);
620
621 cleanup:
622
623
624
625 acpi_ut_remove_reference(offset_desc);
626 acpi_ut_remove_reference(buffer_desc);
627
628 if (aml_opcode == AML_CREATE_FIELD_OP) {
629 acpi_ut_remove_reference(length_desc);
630 }
631
632
633
634 if (ACPI_FAILURE(status)) {
635 acpi_ut_remove_reference(result_desc);
636 } else {
637
638
639 obj_desc->buffer_field.flags |= AOPOBJ_DATA_VALID;
640 }
641
642 return_ACPI_STATUS(status);
643}
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659acpi_status
660acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
661 union acpi_parse_object *op)
662{
663 acpi_status status;
664 union acpi_operand_object *obj_desc;
665 struct acpi_namespace_node *node;
666 union acpi_parse_object *next_op;
667
668 ACPI_FUNCTION_TRACE_PTR(ds_eval_buffer_field_operands, op);
669
670
671
672
673
674 node = op->common.node;
675
676
677
678 next_op = op->common.value.arg;
679
680
681
682 status = acpi_ds_create_operands(walk_state, next_op);
683 if (ACPI_FAILURE(status)) {
684 return_ACPI_STATUS(status);
685 }
686
687 obj_desc = acpi_ns_get_attached_object(node);
688 if (!obj_desc) {
689 return_ACPI_STATUS(AE_NOT_EXIST);
690 }
691
692
693
694 status = acpi_ex_resolve_operands(op->common.aml_opcode,
695 ACPI_WALK_OPERANDS, walk_state);
696 if (ACPI_FAILURE(status)) {
697 ACPI_ERROR((AE_INFO, "(%s) bad operand(s), status 0x%X",
698 acpi_ps_get_opcode_name(op->common.aml_opcode),
699 status));
700
701 return_ACPI_STATUS(status);
702 }
703
704
705
706 if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
707
708
709
710 status =
711 acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc,
712 walk_state->operands[0],
713 walk_state->operands[1],
714 walk_state->operands[2],
715 walk_state->operands[3]);
716 } else {
717
718
719 status =
720 acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc,
721 walk_state->operands[0],
722 walk_state->operands[1], NULL,
723 walk_state->operands[2]);
724 }
725
726 return_ACPI_STATUS(status);
727}
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743acpi_status
744acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
745 union acpi_parse_object *op)
746{
747 acpi_status status;
748 union acpi_operand_object *obj_desc;
749 union acpi_operand_object *operand_desc;
750 struct acpi_namespace_node *node;
751 union acpi_parse_object *next_op;
752
753 ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op);
754
755
756
757
758
759 node = op->common.node;
760
761
762
763 next_op = op->common.value.arg;
764
765
766
767 next_op = next_op->common.next;
768
769
770
771 status = acpi_ds_create_operands(walk_state, next_op);
772 if (ACPI_FAILURE(status)) {
773 return_ACPI_STATUS(status);
774 }
775
776
777
778 status = acpi_ex_resolve_operands(op->common.aml_opcode,
779 ACPI_WALK_OPERANDS, walk_state);
780 if (ACPI_FAILURE(status)) {
781 return_ACPI_STATUS(status);
782 }
783
784 obj_desc = acpi_ns_get_attached_object(node);
785 if (!obj_desc) {
786 return_ACPI_STATUS(AE_NOT_EXIST);
787 }
788
789
790
791
792
793 operand_desc = walk_state->operands[walk_state->num_operands - 1];
794
795 obj_desc->region.length = (u32) operand_desc->integer.value;
796 acpi_ut_remove_reference(operand_desc);
797
798
799
800
801
802 operand_desc = walk_state->operands[walk_state->num_operands - 2];
803
804 obj_desc->region.address = (acpi_physical_address)
805 operand_desc->integer.value;
806 acpi_ut_remove_reference(operand_desc);
807
808 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
809 obj_desc,
810 ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address),
811 obj_desc->region.length));
812
813
814
815 obj_desc->region.flags |= AOPOBJ_DATA_VALID;
816
817 return_ACPI_STATUS(status);
818}
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834acpi_status
835acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
836 union acpi_parse_object *op)
837{
838 acpi_status status;
839 union acpi_operand_object *obj_desc;
840 union acpi_operand_object **operand;
841 struct acpi_namespace_node *node;
842 union acpi_parse_object *next_op;
843 u32 table_index;
844 struct acpi_table_header *table;
845
846 ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op);
847
848
849
850
851
852 node = op->common.node;
853
854
855
856 next_op = op->common.value.arg;
857
858
859
860
861
862 status = acpi_ds_create_operands(walk_state, next_op);
863 if (ACPI_FAILURE(status)) {
864 return_ACPI_STATUS(status);
865 }
866
867
868
869
870
871 status = acpi_ex_resolve_operands(op->common.aml_opcode,
872 ACPI_WALK_OPERANDS, walk_state);
873 if (ACPI_FAILURE(status)) {
874 return_ACPI_STATUS(status);
875 }
876
877 operand = &walk_state->operands[0];
878
879
880
881 status = acpi_tb_find_table(operand[0]->string.pointer,
882 operand[1]->string.pointer,
883 operand[2]->string.pointer, &table_index);
884 if (ACPI_FAILURE(status)) {
885 return_ACPI_STATUS(status);
886 }
887
888 acpi_ut_remove_reference(operand[0]);
889 acpi_ut_remove_reference(operand[1]);
890 acpi_ut_remove_reference(operand[2]);
891
892 status = acpi_get_table_by_index(table_index, &table);
893 if (ACPI_FAILURE(status)) {
894 return_ACPI_STATUS(status);
895 }
896
897 obj_desc = acpi_ns_get_attached_object(node);
898 if (!obj_desc) {
899 return_ACPI_STATUS(AE_NOT_EXIST);
900 }
901
902 obj_desc->region.address =
903 (acpi_physical_address) ACPI_TO_INTEGER(table);
904 obj_desc->region.length = table->length;
905
906 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
907 obj_desc,
908 ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address),
909 obj_desc->region.length));
910
911
912
913 obj_desc->region.flags |= AOPOBJ_DATA_VALID;
914
915 return_ACPI_STATUS(status);
916}
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933acpi_status
934acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
935 union acpi_parse_object *op,
936 union acpi_operand_object *obj_desc)
937{
938 acpi_status status;
939 union acpi_operand_object *arg_desc;
940 u32 length;
941
942 ACPI_FUNCTION_TRACE(ds_eval_data_object_operands);
943
944
945
946
947
948
949
950 walk_state->operand_index = walk_state->num_operands;
951
952 status = acpi_ds_create_operand(walk_state, op->common.value.arg, 1);
953 if (ACPI_FAILURE(status)) {
954 return_ACPI_STATUS(status);
955 }
956
957 status = acpi_ex_resolve_operands(walk_state->opcode,
958 &(walk_state->
959 operands[walk_state->num_operands -
960 1]), walk_state);
961 if (ACPI_FAILURE(status)) {
962 return_ACPI_STATUS(status);
963 }
964
965
966
967 arg_desc = walk_state->operands[walk_state->num_operands - 1];
968 length = (u32) arg_desc->integer.value;
969
970
971
972 status = acpi_ds_obj_stack_pop(1, walk_state);
973 if (ACPI_FAILURE(status)) {
974 return_ACPI_STATUS(status);
975 }
976
977 acpi_ut_remove_reference(arg_desc);
978
979
980
981
982 switch (op->common.aml_opcode) {
983 case AML_BUFFER_OP:
984
985 status =
986 acpi_ds_build_internal_buffer_obj(walk_state, op, length,
987 &obj_desc);
988 break;
989
990 case AML_PACKAGE_OP:
991 case AML_VAR_PACKAGE_OP:
992
993 status =
994 acpi_ds_build_internal_package_obj(walk_state, op, length,
995 &obj_desc);
996 break;
997
998 default:
999 return_ACPI_STATUS(AE_AML_BAD_OPCODE);
1000 }
1001
1002 if (ACPI_SUCCESS(status)) {
1003
1004
1005
1006
1007
1008 if ((!op->common.parent) ||
1009 ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) &&
1010 (op->common.parent->common.aml_opcode !=
1011 AML_VAR_PACKAGE_OP)
1012 && (op->common.parent->common.aml_opcode != AML_NAME_OP))) {
1013 walk_state->result_obj = obj_desc;
1014 }
1015 }
1016
1017 return_ACPI_STATUS(status);
1018}
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034acpi_status
1035acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state,
1036 union acpi_parse_object *op)
1037{
1038 acpi_status status;
1039 union acpi_operand_object *obj_desc;
1040 union acpi_operand_object *operand_desc;
1041 struct acpi_namespace_node *node;
1042 union acpi_parse_object *next_op;
1043 union acpi_parse_object *arg;
1044
1045 ACPI_FUNCTION_TRACE_PTR(ds_eval_bank_field_operands, op);
1046
1047
1048
1049
1050
1051
1052
1053
1054 next_op = op->common.value.arg;
1055
1056
1057
1058 next_op = next_op->common.next;
1059
1060
1061
1062 next_op = next_op->common.next;
1063
1064
1065
1066
1067
1068
1069
1070 walk_state->operand_index = 0;
1071
1072 status = acpi_ds_create_operand(walk_state, next_op, 0);
1073 if (ACPI_FAILURE(status)) {
1074 return_ACPI_STATUS(status);
1075 }
1076
1077 status = acpi_ex_resolve_to_value(&walk_state->operands[0], walk_state);
1078 if (ACPI_FAILURE(status)) {
1079 return_ACPI_STATUS(status);
1080 }
1081
1082 ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS,
1083 acpi_ps_get_opcode_name(op->common.aml_opcode), 1);
1084
1085
1086
1087
1088 operand_desc = walk_state->operands[0];
1089
1090
1091
1092 arg = acpi_ps_get_arg(op, 4);
1093 while (arg) {
1094
1095
1096
1097 if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
1098 node = arg->common.node;
1099
1100 obj_desc = acpi_ns_get_attached_object(node);
1101 if (!obj_desc) {
1102 return_ACPI_STATUS(AE_NOT_EXIST);
1103 }
1104
1105 obj_desc->bank_field.value =
1106 (u32) operand_desc->integer.value;
1107 }
1108
1109
1110
1111 arg = arg->common.next;
1112 }
1113
1114 acpi_ut_remove_reference(operand_desc);
1115 return_ACPI_STATUS(status);
1116}
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132acpi_status
1133acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
1134 union acpi_parse_object *op)
1135{
1136 acpi_status status = AE_OK;
1137 union acpi_generic_state *control_state;
1138
1139 ACPI_FUNCTION_NAME(ds_exec_begin_control_op);
1140
1141 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", op,
1142 op->common.aml_opcode, walk_state));
1143
1144 switch (op->common.aml_opcode) {
1145 case AML_WHILE_OP:
1146
1147
1148
1149
1150
1151 if (walk_state->control_state) {
1152 if (walk_state->control_state->control.aml_predicate_start
1153 == (walk_state->parser_state.aml - 1)) {
1154
1155
1156
1157 walk_state->control_state->common.state =
1158 ACPI_CONTROL_CONDITIONAL_EXECUTING;
1159 break;
1160 }
1161 }
1162
1163
1164
1165 case AML_IF_OP:
1166
1167
1168
1169
1170
1171
1172 control_state = acpi_ut_create_control_state();
1173 if (!control_state) {
1174 status = AE_NO_MEMORY;
1175 break;
1176 }
1177
1178
1179
1180
1181 control_state->control.aml_predicate_start =
1182 walk_state->parser_state.aml - 1;
1183 control_state->control.package_end =
1184 walk_state->parser_state.pkg_end;
1185 control_state->control.opcode = op->common.aml_opcode;
1186
1187
1188
1189 acpi_ut_push_generic_state(&walk_state->control_state,
1190 control_state);
1191 break;
1192
1193 case AML_ELSE_OP:
1194
1195
1196
1197
1198 if (walk_state->last_predicate) {
1199 status = AE_CTRL_TRUE;
1200 }
1201
1202 break;
1203
1204 case AML_RETURN_OP:
1205
1206 break;
1207
1208 default:
1209 break;
1210 }
1211
1212 return (status);
1213}
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229acpi_status
1230acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
1231 union acpi_parse_object * op)
1232{
1233 acpi_status status = AE_OK;
1234 union acpi_generic_state *control_state;
1235
1236 ACPI_FUNCTION_NAME(ds_exec_end_control_op);
1237
1238 switch (op->common.aml_opcode) {
1239 case AML_IF_OP:
1240
1241 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", op));
1242
1243
1244
1245
1246
1247 walk_state->last_predicate =
1248 (u8) walk_state->control_state->common.value;
1249
1250
1251
1252
1253
1254 control_state =
1255 acpi_ut_pop_generic_state(&walk_state->control_state);
1256 acpi_ut_delete_generic_state(control_state);
1257 break;
1258
1259 case AML_ELSE_OP:
1260
1261 break;
1262
1263 case AML_WHILE_OP:
1264
1265 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op));
1266
1267 control_state = walk_state->control_state;
1268 if (control_state->common.value) {
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278 control_state->control.loop_count++;
1279 if (control_state->control.loop_count >
1280 ACPI_MAX_LOOP_ITERATIONS) {
1281 status = AE_AML_INFINITE_LOOP;
1282 break;
1283 }
1284
1285
1286
1287
1288
1289 status = AE_CTRL_PENDING;
1290 walk_state->aml_last_while =
1291 control_state->control.aml_predicate_start;
1292 break;
1293 }
1294
1295
1296
1297 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
1298 "[WHILE_OP] termination! Op=%p\n", op));
1299
1300
1301
1302 control_state =
1303 acpi_ut_pop_generic_state(&walk_state->control_state);
1304 acpi_ut_delete_generic_state(control_state);
1305 break;
1306
1307 case AML_RETURN_OP:
1308
1309 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
1310 "[RETURN_OP] Op=%p Arg=%p\n", op,
1311 op->common.value.arg));
1312
1313
1314
1315
1316
1317
1318 if (op->common.value.arg) {
1319
1320
1321
1322 acpi_ds_clear_implicit_return(walk_state);
1323
1324
1325
1326 status =
1327 acpi_ds_create_operands(walk_state,
1328 op->common.value.arg);
1329 if (ACPI_FAILURE(status)) {
1330 return (status);
1331 }
1332
1333
1334
1335
1336
1337
1338 status =
1339 acpi_ex_resolve_to_value(&walk_state->operands[0],
1340 walk_state);
1341 if (ACPI_FAILURE(status)) {
1342 return (status);
1343 }
1344
1345
1346
1347
1348
1349
1350 walk_state->return_desc = walk_state->operands[0];
1351 } else if (walk_state->result_count) {
1352
1353
1354
1355 acpi_ds_clear_implicit_return(walk_state);
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366 if ((ACPI_GET_DESCRIPTOR_TYPE
1367 (walk_state->results->results.obj_desc[0]) ==
1368 ACPI_DESC_TYPE_OPERAND)
1369 && ((walk_state->results->results.obj_desc[0])->
1370 common.type == ACPI_TYPE_LOCAL_REFERENCE)
1371 && ((walk_state->results->results.obj_desc[0])->
1372 reference.class != ACPI_REFCLASS_INDEX)) {
1373 status =
1374 acpi_ex_resolve_to_value(&walk_state->
1375 results->results.
1376 obj_desc[0],
1377 walk_state);
1378 if (ACPI_FAILURE(status)) {
1379 return (status);
1380 }
1381 }
1382
1383 walk_state->return_desc =
1384 walk_state->results->results.obj_desc[0];
1385 } else {
1386
1387
1388 if (walk_state->num_operands) {
1389 acpi_ut_remove_reference(walk_state->
1390 operands[0]);
1391 }
1392
1393 walk_state->operands[0] = NULL;
1394 walk_state->num_operands = 0;
1395 walk_state->return_desc = NULL;
1396 }
1397
1398 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
1399 "Completed RETURN_OP State=%p, RetVal=%p\n",
1400 walk_state, walk_state->return_desc));
1401
1402
1403
1404 status = AE_CTRL_TERMINATE;
1405 break;
1406
1407 case AML_NOOP_OP:
1408
1409
1410 break;
1411
1412 case AML_BREAK_POINT_OP:
1413
1414
1415
1416
1417
1418
1419 ACPI_DEBUGGER_EXEC(acpi_gbl_cm_single_step = TRUE);
1420 ACPI_DEBUGGER_EXEC(acpi_os_printf
1421 ("**break** Executed AML BreakPoint opcode\n"));
1422
1423
1424
1425 status = acpi_os_signal(ACPI_SIGNAL_BREAKPOINT,
1426 "Executed AML Breakpoint opcode");
1427 break;
1428
1429 case AML_BREAK_OP:
1430 case AML_CONTINUE_OP:
1431
1432
1433
1434 while (walk_state->control_state &&
1435 (walk_state->control_state->control.opcode !=
1436 AML_WHILE_OP)) {
1437 control_state =
1438 acpi_ut_pop_generic_state(&walk_state->
1439 control_state);
1440 acpi_ut_delete_generic_state(control_state);
1441 }
1442
1443
1444
1445 if (!walk_state->control_state) {
1446 return (AE_AML_NO_WHILE);
1447 }
1448
1449
1450
1451 walk_state->aml_last_while =
1452 walk_state->control_state->control.package_end;
1453
1454
1455
1456 if (op->common.aml_opcode == AML_BREAK_OP) {
1457 status = AE_CTRL_BREAK;
1458 } else {
1459 status = AE_CTRL_CONTINUE;
1460 }
1461 break;
1462
1463 default:
1464
1465 ACPI_ERROR((AE_INFO, "Unknown control opcode=0x%X Op=%p",
1466 op->common.aml_opcode, op));
1467
1468 status = AE_AML_BAD_OPCODE;
1469 break;
1470 }
1471
1472 return (status);
1473}
1474