ReactOS 0.4.15-dev-7906-g1b85a5f
dsfield.c File Reference
#include "acpi.h"
#include "accommon.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acinterp.h"
#include "acnamesp.h"
#include "acparser.h"
Include dependency graph for dsfield.c:

Go to the source code of this file.

Macros

#define _COMPONENT   ACPI_DISPATCHER
 

Functions

static ACPI_STATUS AcpiDsGetFieldNames (ACPI_CREATE_FIELD_INFO *Info, ACPI_WALK_STATE *WalkState, ACPI_PARSE_OBJECT *Arg)
 
ACPI_STATUS AcpiDsCreateBufferField (ACPI_PARSE_OBJECT *Op, ACPI_WALK_STATE *WalkState)
 
ACPI_STATUS AcpiDsCreateField (ACPI_PARSE_OBJECT *Op, ACPI_NAMESPACE_NODE *RegionNode, ACPI_WALK_STATE *WalkState)
 
ACPI_STATUS AcpiDsInitFieldObjects (ACPI_PARSE_OBJECT *Op, ACPI_WALK_STATE *WalkState)
 
ACPI_STATUS AcpiDsCreateBankField (ACPI_PARSE_OBJECT *Op, ACPI_NAMESPACE_NODE *RegionNode, ACPI_WALK_STATE *WalkState)
 
ACPI_STATUS AcpiDsCreateIndexField (ACPI_PARSE_OBJECT *Op, ACPI_NAMESPACE_NODE *RegionNode, ACPI_WALK_STATE *WalkState)
 

Macro Definition Documentation

◆ _COMPONENT

#define _COMPONENT   ACPI_DISPATCHER

Definition at line 57 of file dsfield.c.

Function Documentation

◆ AcpiDsCreateBankField()

ACPI_STATUS AcpiDsCreateBankField ( ACPI_PARSE_OBJECT Op,
ACPI_NAMESPACE_NODE RegionNode,
ACPI_WALK_STATE WalkState 
)

Definition at line 748 of file dsfield.c.

752{
756
757
758 ACPI_FUNCTION_TRACE_PTR (DsCreateBankField, Op);
759
760
761 /* First arg is the name of the parent OpRegion (must already exist) */
762
763 Arg = Op->Common.Value.Arg;
764 if (!RegionNode)
765 {
766 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.Name,
768 ACPI_NS_SEARCH_PARENT, WalkState, &RegionNode);
769#ifdef ACPI_ASL_COMPILER
770 Status = AcpiDsCreateExternalRegion (Status, Arg,
771 Arg->Common.Value.Name, WalkState, &RegionNode);
772#endif
773 if (ACPI_FAILURE (Status))
774 {
776 Arg->Common.Value.Name, Status);
778 }
779 }
780
781 /* Second arg is the Bank Register (Field) (must already exist) */
782
783 Arg = Arg->Common.Next;
784 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
786 ACPI_NS_SEARCH_PARENT, WalkState, &Info.RegisterNode);
787 if (ACPI_FAILURE (Status))
788 {
790 Arg->Common.Value.String, Status);
792 }
793
794 /*
795 * Third arg is the BankValue
796 * This arg is a TermArg, not a constant
797 * It will be evaluated later, by AcpiDsEvalBankFieldOperands
798 */
799 Arg = Arg->Common.Next;
800
801 /* Fourth arg is the field flags */
802
803 Arg = Arg->Common.Next;
804 Info.FieldFlags = (UINT8) Arg->Common.Value.Integer;
805
806 /* Each remaining arg is a Named Field */
807
809 Info.RegionNode = RegionNode;
810
811 /*
812 * Use Info.DataRegisterNode to store BankField Op
813 * It's safe because DataRegisterNode will never be used when create
814 * bank field \we store AmlStart and AmlLength in the BankField Op for
815 * late evaluation. Used in AcpiExPrepFieldValue(Info)
816 *
817 * TBD: Or, should we add a field in ACPI_CREATE_FIELD_INFO, like
818 * "void *ParentOp"?
819 */
820 Info.DataRegisterNode = (ACPI_NAMESPACE_NODE*) Op;
821
822 Status = AcpiDsGetFieldNames (&Info, WalkState, Arg->Common.Next);
824}
unsigned char UINT8
#define ACPI_FAILURE(a)
Definition: acexcep.h:95
@ ACPI_IMODE_EXECUTE
Definition: aclocal.h:169
#define ACPI_ERROR_NAMESPACE(s, p, e)
Definition: acmacros.h:462
ACPI_STATUS AcpiNsLookup(ACPI_GENERIC_STATE *ScopeInfo, char *Name, ACPI_OBJECT_TYPE Type, ACPI_INTERPRETER_MODE InterpreterMode, UINT32 Flags, ACPI_WALK_STATE *WalkState, ACPI_NAMESPACE_NODE **RetNode)
Definition: nsaccess.c:328
#define ACPI_NS_SEARCH_PARENT
Definition: acnamesp.h:63
#define ACPI_FUNCTION_TRACE_PTR(a, b)
Definition: acoutput.h:481
#define return_ACPI_STATUS(s)
Definition: acoutput.h:496
#define ACPI_TYPE_LOCAL_BANK_FIELD
Definition: actypes.h:717
#define ACPI_TYPE_REGION
Definition: actypes.h:697
#define ACPI_TYPE_ANY
Definition: actypes.h:687
UINT32 ACPI_STATUS
Definition: actypes.h:460
static ACPI_STATUS AcpiDsGetFieldNames(ACPI_CREATE_FIELD_INFO *Info, ACPI_WALK_STATE *WalkState, ACPI_PARSE_OBJECT *Arg)
Definition: dsfield.c:324
Status
Definition: gdiplustypes.h:25
ACPI_GENERIC_STATE * ScopeInfo
Definition: acstruct.h:124
ACPI_PARSE_OBJ_COMMON Common
Definition: aclocal.h:1078
_Must_inspect_result_ _In_ WDFCHILDLIST _In_ PWDF_CHILD_LIST_ITERATOR _Out_ WDFDEVICE _Inout_opt_ PWDF_CHILD_RETRIEVE_INFO Info
Definition: wdfchildlist.h:690

Referenced by AcpiDsLoad2EndOp().

◆ AcpiDsCreateBufferField()

ACPI_STATUS AcpiDsCreateBufferField ( ACPI_PARSE_OBJECT Op,
ACPI_WALK_STATE WalkState 
)

Definition at line 165 of file dsfield.c.

168{
172 ACPI_OPERAND_OBJECT *ObjDesc;
173 ACPI_OPERAND_OBJECT *SecondDesc = NULL;
175
176
177 ACPI_FUNCTION_TRACE (DsCreateBufferField);
178
179
180 /*
181 * Get the NameString argument (name of the new BufferField)
182 */
183 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
184 {
185 /* For CreateField, name is the 4th argument */
186
187 Arg = AcpiPsGetArg (Op, 3);
188 }
189 else
190 {
191 /* For all other CreateXXXField operators, name is the 3rd argument */
192
193 Arg = AcpiPsGetArg (Op, 2);
194 }
195
196 if (!Arg)
197 {
199 }
200
201 if (WalkState->DeferredNode)
202 {
203 Node = WalkState->DeferredNode;
204 }
205 else
206 {
207 /* Execute flag should always be set when this function is entered */
208
209 if (!(WalkState->ParseFlags & ACPI_PARSE_EXECUTE))
210 {
212 "Parse execute mode is not set"));
214 }
215
216 /* Creating new namespace node, should not already exist */
217
220
221 /*
222 * Mark node temporary if we are executing a normal control
223 * method. (Don't mark if this is a module-level code method)
224 */
225 if (WalkState->MethodNode &&
226 !(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
227 {
229 }
230
231 /* Enter the NameString into the namespace */
232
233 Status = AcpiNsLookup (WalkState->ScopeInfo,
234 Arg->Common.Value.String, ACPI_TYPE_ANY,
235 ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node);
236 if ((WalkState->ParseFlags & ACPI_PARSE_DISASSEMBLE) &&
238 {
239 Status = AE_OK;
240 }
241 else if (ACPI_FAILURE (Status))
242 {
244 Arg->Common.Value.String, Status);
246 }
247 }
248
249 /*
250 * We could put the returned object (Node) on the object stack for later,
251 * but for now, we will put it in the "op" object that the parser uses,
252 * so we can get it again at the end of this scope.
253 */
254 Op->Common.Node = Node;
255
256 /*
257 * If there is no object attached to the node, this node was just created
258 * and we need to create the field object. Otherwise, this was a lookup
259 * of an existing node and we don't want to create the field object again.
260 */
261 ObjDesc = AcpiNsGetAttachedObject (Node);
262 if (ObjDesc)
263 {
265 }
266
267 /*
268 * The Field definition is not fully parsed at this time.
269 * (We must save the address of the AML for the buffer and index operands)
270 */
271
272 /* Create the buffer field object */
273
275 if (!ObjDesc)
276 {
278 goto Cleanup;
279 }
280
281 /*
282 * Remember location in AML stream of the field unit opcode and operands
283 * -- since the buffer and index operands must be evaluated.
284 */
285 SecondDesc = ObjDesc->Common.NextObject;
286 SecondDesc->Extra.AmlStart = Op->Named.Data;
287 SecondDesc->Extra.AmlLength = Op->Named.Length;
288 ObjDesc->BufferField.Node = Node;
289
290 /* Attach constructed field descriptors to parent node */
291
293 if (ACPI_FAILURE (Status))
294 {
295 goto Cleanup;
296 }
297
298
299Cleanup:
300
301 /* Remove local reference to the object */
302
303 AcpiUtRemoveReference (ObjDesc);
305}
unsigned int UINT32
#define AE_AML_NO_OPERAND
Definition: acexcep.h:181
#define AE_AML_INTERNAL
Definition: acexcep.h:194
#define AE_ALREADY_EXISTS
Definition: acexcep.h:115
#define AE_NO_MEMORY
Definition: acexcep.h:112
#define AE_OK
Definition: acexcep.h:97
@ ACPI_IMODE_LOAD_PASS1
Definition: aclocal.h:167
ACPI_OPERAND_OBJECT * AcpiNsGetAttachedObject(ACPI_NAMESPACE_NODE *Node)
Definition: nsobject.c:308
#define ACPI_NS_TEMPORARY
Definition: acnamesp.h:69
#define ACPI_NS_NO_UPSEARCH
Definition: acnamesp.h:62
#define ACPI_NS_ERROR_IF_FOUND
Definition: acnamesp.h:66
#define ACPI_NS_DONT_OPEN_SCOPE
Definition: acnamesp.h:64
ACPI_STATUS AcpiNsAttachObject(ACPI_NAMESPACE_NODE *Node, ACPI_OPERAND_OBJECT *Object, ACPI_OBJECT_TYPE Type)
Definition: nsobject.c:76
#define ACPI_FUNCTION_TRACE(a)
Definition: acoutput.h:480
#define ACPI_ERROR(plist)
Definition: acoutput.h:240
#define AE_INFO
Definition: acoutput.h:230
#define ACPI_PARSE_EXECUTE
Definition: acparser.h:61
ACPI_PARSE_OBJECT * AcpiPsGetArg(ACPI_PARSE_OBJECT *op, UINT32 argn)
Definition: pstree.c:76
#define ACPI_PARSE_DISASSEMBLE
Definition: acparser.h:65
#define ACPI_PARSE_MODULE_LEVEL
Definition: acparser.h:67
#define ACPI_TYPE_BUFFER_FIELD
Definition: actypes.h:701
#define AcpiUtCreateInternalObject(t)
Definition: acutils.h:681
void AcpiUtRemoveReference(ACPI_OPERAND_OBJECT *Object)
Definition: utdelete.c:790
#define AML_CREATE_FIELD_OP
Definition: amlcode.h:163
#define NULL
Definition: types.h:112
union node Node
Definition: types.h:1255
static const WCHAR Cleanup[]
Definition: register.c:80
UINT32 AmlLength
Definition: acobject.h:485
UINT8 * AmlStart
Definition: acobject.h:484
struct acpi_namespace_node * MethodNode
Definition: acstruct.h:116
UINT32 ParseFlags
Definition: acstruct.h:95
struct acpi_namespace_node * DeferredNode
Definition: acstruct.h:111
ACPI_OBJECT_BUFFER_FIELD BufferField
Definition: acobject.h:535
ACPI_OBJECT_EXTRA Extra
Definition: acobject.h:541
ACPI_OBJECT_COMMON Common
Definition: acobject.h:519
ACPI_PARSE_OBJ_NAMED Named
Definition: aclocal.h:1079
Definition: dlist.c:348
_Must_inspect_result_ _In_ ULONG Flags
Definition: wsk.h:170

Referenced by AcpiDsLoad1EndOp(), and AcpiDsLoad2EndOp().

◆ AcpiDsCreateField()

ACPI_STATUS AcpiDsCreateField ( ACPI_PARSE_OBJECT Op,
ACPI_NAMESPACE_NODE RegionNode,
ACPI_WALK_STATE WalkState 
)

Definition at line 534 of file dsfield.c.

538{
542
543
544 ACPI_FUNCTION_TRACE_PTR (DsCreateField, Op);
545
546
547 /* First arg is the name of the parent OpRegion (must already exist) */
548
549 Arg = Op->Common.Value.Arg;
550
551 if (!RegionNode)
552 {
553 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.Name,
555 ACPI_NS_SEARCH_PARENT, WalkState, &RegionNode);
556#ifdef ACPI_ASL_COMPILER
557 Status = AcpiDsCreateExternalRegion (Status, Arg,
558 Arg->Common.Value.Name, WalkState, &RegionNode);
559#endif
560 if (ACPI_FAILURE (Status))
561 {
563 Arg->Common.Value.Name, Status);
565 }
566 }
567
568 memset (&Info, 0, sizeof (ACPI_CREATE_FIELD_INFO));
569
570 /* Second arg is the field flags */
571
572 Arg = Arg->Common.Next;
573 Info.FieldFlags = (UINT8) Arg->Common.Value.Integer;
574 Info.Attribute = 0;
575
576 /* Each remaining arg is a Named Field */
577
579 Info.RegionNode = RegionNode;
580
581 Status = AcpiDsGetFieldNames (&Info, WalkState, Arg->Common.Next);
582 if (ACPI_FAILURE (Status))
583 {
585 }
586
587 if (Info.RegionNode->Object->Region.SpaceId == ACPI_ADR_SPACE_PLATFORM_COMM)
588 {
589 RegionNode->Object->Field.InternalPccBuffer =
590 ACPI_ALLOCATE_ZEROED(Info.RegionNode->Object->Region.Length);
591 if (!RegionNode->Object->Field.InternalPccBuffer)
592 {
594 }
595 }
596
598}
#define ACPI_ADR_SPACE_PLATFORM_COMM
Definition: actypes.h:871
#define ACPI_TYPE_LOCAL_REGION_FIELD
Definition: actypes.h:716
#define ACPI_ALLOCATE_ZEROED(a)
Definition: actypes.h:385
#define memset(x, y, z)
Definition: compat.h:39
union acpi_operand_object * Object
Definition: aclocal.h:187
ACPI_OBJECT_REGION_FIELD Field
Definition: acobject.h:534

Referenced by AcpiDsLoad2EndOp().

◆ AcpiDsCreateIndexField()

ACPI_STATUS AcpiDsCreateIndexField ( ACPI_PARSE_OBJECT Op,
ACPI_NAMESPACE_NODE RegionNode,
ACPI_WALK_STATE WalkState 
)

Definition at line 842 of file dsfield.c.

846{
850
851
852 ACPI_FUNCTION_TRACE_PTR (DsCreateIndexField, Op);
853
854
855 /* First arg is the name of the Index register (must already exist) */
856
857 Arg = Op->Common.Value.Arg;
858 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
860 ACPI_NS_SEARCH_PARENT, WalkState, &Info.RegisterNode);
861 if (ACPI_FAILURE (Status))
862 {
864 Arg->Common.Value.String, Status);
866 }
867
868 /* Second arg is the data register (must already exist) */
869
870 Arg = Arg->Common.Next;
871 Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
873 ACPI_NS_SEARCH_PARENT, WalkState, &Info.DataRegisterNode);
874 if (ACPI_FAILURE (Status))
875 {
877 Arg->Common.Value.String, Status);
879 }
880
881 /* Next arg is the field flags */
882
883 Arg = Arg->Common.Next;
884 Info.FieldFlags = (UINT8) Arg->Common.Value.Integer;
885
886 /* Each remaining arg is a Named Field */
887
889 Info.RegionNode = RegionNode;
890
891 Status = AcpiDsGetFieldNames (&Info, WalkState, Arg->Common.Next);
893}
#define ACPI_TYPE_LOCAL_INDEX_FIELD
Definition: actypes.h:718

Referenced by AcpiDsLoad2EndOp().

◆ AcpiDsGetFieldNames()

static ACPI_STATUS AcpiDsGetFieldNames ( ACPI_CREATE_FIELD_INFO Info,
ACPI_WALK_STATE WalkState,
ACPI_PARSE_OBJECT Arg 
)
static

Definition at line 324 of file dsfield.c.

328{
332
333#ifdef ACPI_EXEC_APP
334 ACPI_OPERAND_OBJECT *ResultDesc;
335 ACPI_OPERAND_OBJECT *ObjDesc;
336 char *NamePath;
337#endif
338
339
340 ACPI_FUNCTION_TRACE_PTR (DsGetFieldNames, Info);
341
342
343 /* First field starts at bit zero */
344
345 Info->FieldBitPosition = 0;
346
347 /* Process all elements in the field list (of parse nodes) */
348
349 while (Arg)
350 {
351 /*
352 * Four types of field elements are handled:
353 * 1) Name - Enters a new named field into the namespace
354 * 2) Offset - specifies a bit offset
355 * 3) AccessAs - changes the access mode/attributes
356 * 4) Connection - Associate a resource template with the field
357 */
358 switch (Arg->Common.AmlOpcode)
359 {
361
362 Position = (UINT64) Info->FieldBitPosition +
363 (UINT64) Arg->Common.Value.Size;
364
366 {
368 "Bit offset within field too large (> 0xFFFFFFFF)"));
370 }
371
372 Info->FieldBitPosition = (UINT32) Position;
373 break;
374
377 /*
378 * Get new AccessType, AccessAttribute, and AccessLength fields
379 * -- to be used for all field units that follow, until the
380 * end-of-field or another AccessAs keyword is encountered.
381 * NOTE. These three bytes are encoded in the integer value
382 * of the parseop for convenience.
383 *
384 * In FieldFlags, preserve the flag bits other than the
385 * ACCESS_TYPE bits.
386 */
387
388 /* AccessType (ByteAcc, WordAcc, etc.) */
389
390 Info->FieldFlags = (UINT8)
391 ((Info->FieldFlags & ~(AML_FIELD_ACCESS_TYPE_MASK)) |
392 ((UINT8) ((UINT32) (Arg->Common.Value.Integer & 0x07))));
393
394 /* AccessAttribute (AttribQuick, AttribByte, etc.) */
395
396 Info->Attribute = (UINT8)
397 ((Arg->Common.Value.Integer >> 8) & 0xFF);
398
399 /* AccessLength (for serial/buffer protocols) */
400
401 Info->AccessLength = (UINT8)
402 ((Arg->Common.Value.Integer >> 16) & 0xFF);
403 break;
404
406 /*
407 * Clear any previous connection. New connection is used for all
408 * fields that follow, similar to AccessAs
409 */
410 Info->ResourceBuffer = NULL;
411 Info->ConnectionNode = NULL;
412 Info->PinNumberIndex = 0;
413
414 /*
415 * A Connection() is either an actual resource descriptor (buffer)
416 * or a named reference to a resource template
417 */
418 Child = Arg->Common.Value.Arg;
419 if (Child->Common.AmlOpcode == AML_INT_BYTELIST_OP)
420 {
421 Info->ResourceBuffer = Child->Named.Data;
422 Info->ResourceLength = (UINT16) Child->Named.Value.Integer;
423 }
424 else
425 {
426 /* Lookup the Connection() namepath, it should already exist */
427
428 Status = AcpiNsLookup (WalkState->ScopeInfo,
429 Child->Common.Value.Name, ACPI_TYPE_ANY,
431 WalkState, &Info->ConnectionNode);
432 if (ACPI_FAILURE (Status))
433 {
435 Child->Common.Value.Name, Status);
437 }
438 }
439 break;
440
442
443 /* Lookup the name, it should already exist */
444
445 Status = AcpiNsLookup (WalkState->ScopeInfo,
446 (char *) &Arg->Named.Name, Info->FieldType,
448 WalkState, &Info->FieldNode);
449 if (ACPI_FAILURE (Status))
450 {
452 (char *) &Arg->Named.Name, Status);
454 }
455 else
456 {
457 Arg->Common.Node = Info->FieldNode;
458 Info->FieldBitLength = Arg->Common.Value.Size;
459
460 /*
461 * If there is no object attached to the node, this node was
462 * just created and we need to create the field object.
463 * Otherwise, this was a lookup of an existing node and we
464 * don't want to create the field object again.
465 */
466 if (!AcpiNsGetAttachedObject (Info->FieldNode))
467 {
469 if (ACPI_FAILURE (Status))
470 {
472 }
473#ifdef ACPI_EXEC_APP
474 NamePath = AcpiNsGetExternalPathname (Info->FieldNode);
475 if (ACPI_SUCCESS (AeLookupInitFileEntry (NamePath, &ObjDesc)))
476 {
477 AcpiExWriteDataToField (ObjDesc,
478 AcpiNsGetAttachedObject (Info->FieldNode),
479 &ResultDesc);
480 AcpiUtRemoveReference (ObjDesc);
481 }
482 ACPI_FREE (NamePath);
483#endif
484 }
485 }
486
487 /* Keep track of bit position for the next field */
488
489 Position = (UINT64) Info->FieldBitPosition +
490 (UINT64) Arg->Common.Value.Size;
491
493 {
495 "Field [%4.4s] bit offset too large (> 0xFFFFFFFF)",
496 ACPI_CAST_PTR (char, &Info->FieldNode->Name)));
498 }
499
500 Info->FieldBitPosition += Info->FieldBitLength;
501 Info->PinNumberIndex++; /* Index relative to previous Connection() */
502 break;
503
504 default:
505
507 "Invalid opcode in field list: 0x%X",
508 Arg->Common.AmlOpcode));
510 }
511
512 Arg = Arg->Common.Next;
513 }
514
516}
unsigned short UINT16
unsigned long long UINT64
#define AE_SUPPORT
Definition: acexcep.h:123
#define AE_AML_BAD_OPCODE
Definition: acexcep.h:180
#define ACPI_SUCCESS(a)
Definition: acexcep.h:94
char * AcpiNsGetExternalPathname(ACPI_NAMESPACE_NODE *Node)
Definition: nsnames.c:70
#define ACPI_FREE(a)
Definition: actypes.h:386
#define ACPI_CAST_PTR(t, p)
Definition: actypes.h:544
#define ACPI_UINT32_MAX
Definition: actypes.h:66
#define AML_INT_NAMEDFIELD_OP
Definition: amlcode.h:206
#define AML_INT_BYTELIST_OP
Definition: amlcode.h:209
#define AML_FIELD_ACCESS_TYPE_MASK
Definition: amlcode.h:442
#define AML_INT_RESERVEDFIELD_OP
Definition: amlcode.h:207
#define AML_INT_EXTACCESSFIELD_OP
Definition: amlcode.h:214
#define AML_INT_CONNECTION_OP
Definition: amlcode.h:213
#define AML_INT_ACCESSFIELD_OP
Definition: amlcode.h:208
ACPI_STATUS AcpiExWriteDataToField(ACPI_OPERAND_OBJECT *SourceDesc, ACPI_OPERAND_OBJECT *ObjDesc, ACPI_OPERAND_OBJECT **ResultDesc)
Definition: exfield.c:317
ACPI_STATUS AcpiExPrepFieldValue(ACPI_CREATE_FIELD_INFO *Info)
Definition: exprep.c:438
static COORD Position
Definition: mouse.c:34
ACPI_COMMON_STATE Common
Definition: aclocal.h:822
_Must_inspect_result_ _In_ WDFDEVICE _In_ WDFDEVICE Child
Definition: wdffdo.h:536

Referenced by AcpiDsCreateBankField(), AcpiDsCreateField(), and AcpiDsCreateIndexField().

◆ AcpiDsInitFieldObjects()

ACPI_STATUS AcpiDsInitFieldObjects ( ACPI_PARSE_OBJECT Op,
ACPI_WALK_STATE WalkState 
)

Definition at line 617 of file dsfield.c.

620{
622 ACPI_PARSE_OBJECT *Arg = NULL;
624 UINT8 Type = 0;
626
627
628 ACPI_FUNCTION_TRACE_PTR (DsInitFieldObjects, Op);
629
630
631 /* Execute flag should always be set when this function is entered */
632
633 if (!(WalkState->ParseFlags & ACPI_PARSE_EXECUTE))
634 {
635 if (WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP)
636 {
637 /* BankField Op is deferred, just return OK */
638
640 }
641
643 "Parse deferred mode is not set"));
645 }
646
647 /*
648 * Get the FieldList argument for this opcode. This is the start of the
649 * list of field elements.
650 */
651 switch (WalkState->Opcode)
652 {
653 case AML_FIELD_OP:
654
655 Arg = AcpiPsGetArg (Op, 2);
657 break;
658
660
661 Arg = AcpiPsGetArg (Op, 4);
663 break;
664
666
667 Arg = AcpiPsGetArg (Op, 3);
669 break;
670
671 default:
672
674 }
675
676 /* Creating new namespace node(s), should not already exist */
677
680
681 /*
682 * Mark node(s) temporary if we are executing a normal control
683 * method. (Don't mark if this is a module-level code method)
684 */
685 if (WalkState->MethodNode &&
686 !(WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL))
687 {
689 }
690
691#ifdef ACPI_EXEC_APP
693#endif
694 /*
695 * Walk the list of entries in the FieldList
696 * Note: FieldList can be of zero length. In this case, Arg will be NULL.
697 */
698 while (Arg)
699 {
700 /*
701 * Ignore OFFSET/ACCESSAS/CONNECTION terms here; we are only interested
702 * in the field names in order to enter them into the namespace.
703 */
704 if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
705 {
706 Status = AcpiNsLookup (WalkState->ScopeInfo,
707 (char *) &Arg->Named.Name, Type, ACPI_IMODE_LOAD_PASS1,
708 Flags, WalkState, &Node);
709 if (ACPI_FAILURE (Status))
710 {
712 (char *) &Arg->Named.Name, Status);
714 {
716 }
717
718 /* Name already exists, just ignore this error */
719 }
720
721 Arg->Common.Node = Node;
722 }
723
724 /* Get the next field element in the list */
725
726 Arg = Arg->Common.Next;
727 }
728
730}
Type
Definition: Type.h:7
#define AE_BAD_PARAMETER
Definition: acexcep.h:151
#define ACPI_NS_OVERRIDE_IF_FOUND
Definition: acnamesp.h:70
#define ACPI_PARSE_DEFERRED_OP
Definition: acparser.h:64
#define AML_INDEX_FIELD_OP
Definition: amlcode.h:186
#define AML_BANK_FIELD_OP
Definition: amlcode.h:187
#define AML_FIELD_OP
Definition: amlcode.h:181
UINT16 Opcode
Definition: acstruct.h:78

Referenced by AcpiDsLoad1EndOp(), and AcpiDsLoad2EndOp().