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exutils.c (71867) exutils.c (73561)
1
2/******************************************************************************
3 *
4 * Module Name: amutils - interpreter/scanner utilities
1
2/******************************************************************************
3 *
4 * Module Name: amutils - interpreter/scanner utilities
5 * $Revision: 68 $
5 * $Revision: 69 $
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.

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123#include "amlcode.h"
124#include "acnamesp.h"
125#include "acevents.h"
126
127#define _COMPONENT INTERPRETER
128 MODULE_NAME ("amutils")
129
130
6 *
7 *****************************************************************************/
8
9/******************************************************************************
10 *
11 * 1. Copyright Notice
12 *
13 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.

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123#include "amlcode.h"
124#include "acnamesp.h"
125#include "acevents.h"
126
127#define _COMPONENT INTERPRETER
128 MODULE_NAME ("amutils")
129
130
131typedef struct Internal_Search_st
132{
133 ACPI_OPERAND_OBJECT *DestObj;
134 UINT32 Index;
135 ACPI_OPERAND_OBJECT *SourceObj;
136
131
137} INTERNAL_PKG_SEARCH_INFO;
138
139
140/* Used to traverse nested packages when copying*/
141/* TBD: This must be removed! */
142
143INTERNAL_PKG_SEARCH_INFO CopyLevel[MAX_PACKAGE_DEPTH];
144
145
146/*******************************************************************************
147 *
148 * FUNCTION: AcpiAmlEnterInterpreter
149 *
150 * PARAMETERS: None
151 *
152 * DESCRIPTION: Enter the interpreter execution region
153 *

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499 OutString[Count-1] = (NATIVE_CHAR) ('0' + (ACPI_MODULO (Value, 10)));
500 Value = ACPI_DIVIDE (Value, 10);
501 }
502
503 return (AE_OK);
504}
505
506
132/*******************************************************************************
133 *
134 * FUNCTION: AcpiAmlEnterInterpreter
135 *
136 * PARAMETERS: None
137 *
138 * DESCRIPTION: Enter the interpreter execution region
139 *

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485 OutString[Count-1] = (NATIVE_CHAR) ('0' + (ACPI_MODULO (Value, 10)));
486 Value = ACPI_DIVIDE (Value, 10);
487 }
488
489 return (AE_OK);
490}
491
492
507/*******************************************************************************
508 *
509 * FUNCTION: AcpiAmlBuildCopyInternalPackageObject
510 *
511 * PARAMETERS: *SourceObj - Pointer to the source package object
512 * *DestObj - Where the internal object is returned
513 *
514 * RETURN: Status - the status of the call
515 *
516 * DESCRIPTION: This function is called to copy an internal package object
517 * into another internal package object.
518 *
519 ******************************************************************************/
520
493
521ACPI_STATUS
522AcpiAmlBuildCopyInternalPackageObject (
523 ACPI_OPERAND_OBJECT *SourceObj,
524 ACPI_OPERAND_OBJECT *DestObj,
525 ACPI_WALK_STATE *WalkState)
526{
527 UINT32 CurrentDepth = 0;
528 ACPI_STATUS Status = AE_OK;
529 UINT32 Length = 0;
530 UINT32 ThisIndex;
531 UINT32 ObjectSpace = 0;
532 ACPI_OPERAND_OBJECT *ThisDestObj;
533 ACPI_OPERAND_OBJECT *ThisSourceObj;
534 INTERNAL_PKG_SEARCH_INFO *LevelPtr;
535
536
494
495
537 FUNCTION_TRACE ("AmlBuildCopyInternalPackageObject");
538
496
539
540 /*
541 * Initialize the working variables
542 */
543
544 MEMSET ((void *) CopyLevel, 0, sizeof(CopyLevel));
545
546 CopyLevel[0].DestObj = DestObj;
547 CopyLevel[0].SourceObj = SourceObj;
548 LevelPtr = &CopyLevel[0];
549 CurrentDepth = 0;
550
551 DestObj->Common.Type = SourceObj->Common.Type;
552 DestObj->Package.Count = SourceObj->Package.Count;
553
554
555 /*
556 * Build an array of ACPI_OBJECTS in the buffer
557 * and move the free space past it
558 */
559
560 DestObj->Package.Elements = AcpiCmCallocate (
561 (DestObj->Package.Count + 1) *
562 sizeof (void *));
563 if (!DestObj->Package.Elements)
564 {
565 /* Package vector allocation failure */
566
567 REPORT_ERROR (("AmlBuildCopyInternalPackageObject: Package vector allocation failure\n"));
568 return_ACPI_STATUS (AE_NO_MEMORY);
569 }
570
571 DestObj->Package.NextElement = DestObj->Package.Elements;
572
573
574 while (1)
575 {
576 ThisIndex = LevelPtr->Index;
577 ThisDestObj = (ACPI_OPERAND_OBJECT *) LevelPtr->DestObj->Package.Elements[ThisIndex];
578 ThisSourceObj = (ACPI_OPERAND_OBJECT *) LevelPtr->SourceObj->Package.Elements[ThisIndex];
579
580 if (IS_THIS_OBJECT_TYPE (ThisSourceObj, ACPI_TYPE_PACKAGE))
581 {
582 /*
583 * If this object is a package then we go one deeper
584 */
585 if (CurrentDepth >= MAX_PACKAGE_DEPTH-1)
586 {
587 /*
588 * Too many nested levels of packages for us to handle
589 */
590 DEBUG_PRINT (ACPI_ERROR,
591 ("AmlBuildCopyInternalPackageObject: Pkg nested too deep (max %X)\n",
592 MAX_PACKAGE_DEPTH));
593 return_ACPI_STATUS (AE_LIMIT);
594 }
595
596 /*
597 * Build the package object
598 */
599 ThisDestObj = AcpiCmCreateInternalObject (ACPI_TYPE_PACKAGE);
600 LevelPtr->DestObj->Package.Elements[ThisIndex] = ThisDestObj;
601
602
603 ThisDestObj->Common.Type = ACPI_TYPE_PACKAGE;
604 ThisDestObj->Package.Count = ThisDestObj->Package.Count;
605
606 /*
607 * Save space for the array of objects (Package elements)
608 * update the buffer length counter
609 */
610 ObjectSpace = ThisDestObj->Package.Count *
611 sizeof (ACPI_OPERAND_OBJECT);
612 Length += ObjectSpace;
613 CurrentDepth++;
614 LevelPtr = &CopyLevel[CurrentDepth];
615 LevelPtr->DestObj = ThisDestObj;
616 LevelPtr->SourceObj = ThisSourceObj;
617 LevelPtr->Index = 0;
618
619 } /* if object is a package */
620
621 else
622 {
623
624 ThisDestObj = AcpiCmCreateInternalObject (
625 ThisSourceObj->Common.Type);
626 LevelPtr->DestObj->Package.Elements[ThisIndex] = ThisDestObj;
627
628 Status = AcpiAmlStoreObjectToObject(ThisSourceObj, ThisDestObj, WalkState);
629
630 if (ACPI_FAILURE (Status))
631 {
632 /*
633 * Failure get out
634 */
635 return_ACPI_STATUS (Status);
636 }
637
638 Length +=ObjectSpace;
639
640 LevelPtr->Index++;
641 while (LevelPtr->Index >= LevelPtr->DestObj->Package.Count)
642 {
643 /*
644 * We've handled all of the objects at this level, This means
645 * that we have just completed a package. That package may
646 * have contained one or more packages itself
647 */
648 if (CurrentDepth == 0)
649 {
650 /*
651 * We have handled all of the objects in the top level
652 * package just add the length of the package objects
653 * and exit
654 */
655 return_ACPI_STATUS (AE_OK);
656 }
657
658 /*
659 * Go back up a level and move the index past the just
660 * completed package object.
661 */
662 CurrentDepth--;
663 LevelPtr = &CopyLevel[CurrentDepth];
664 LevelPtr->Index++;
665 }
666 } /* else object is NOT a package */
667 } /* while (1) */
668}
669
670