psscope.c File Reference

#include "acpi.h"
#include "accommon.h"
#include "acparser.h"

Include dependency graph for psscope.c:

Go to the source code of this file.

Macros
#define	_COMPONENT   ACPI_PARSER

Functions
ACPI_PARSE_OBJECT *	AcpiPsGetParentScope (ACPI_PARSE_STATE *ParserState)
BOOLEAN	AcpiPsHasCompletedScope (ACPI_PARSE_STATE *ParserState)
ACPI_STATUS	AcpiPsInitScope (ACPI_PARSE_STATE *ParserState, ACPI_PARSE_OBJECT *RootOp)
ACPI_STATUS	AcpiPsPushScope (ACPI_PARSE_STATE *ParserState, ACPI_PARSE_OBJECT *Op, UINT32 RemainingArgs, UINT32 ArgCount)
void	AcpiPsPopScope (ACPI_PARSE_STATE *ParserState, ACPI_PARSE_OBJECT **Op, UINT32 *ArgList, UINT32 *ArgCount)
void	AcpiPsCleanupScope (ACPI_PARSE_STATE *ParserState)

Macro Definition Documentation

_COMPONENT

#define _COMPONENT   ACPI_PARSER

Definition at line 48 of file psscope.c.

Function Documentation

AcpiPsCleanupScope()

void AcpiPsCleanupScope

(

ACPI_PARSE_STATE *

ParserState

)

Definition at line 277 of file psscope.c.

{
    ACPI_GENERIC_STATE      *Scope;
 
 
    ACPI_FUNCTION_TRACE_PTR (PsCleanupScope, ParserState);
 
 
    if (!ParserState)
    {
        return_VOID;
    }
 
    /* Delete anything on the scope stack */
 
    while (ParserState->Scope)
    {
        Scope = AcpiUtPopGenericState (&ParserState->Scope);
        AcpiUtDeleteGenericState (Scope);
    }
 
    return_VOID;
}

Referenced by AcpiDsDeleteWalkState(), AcpiPsExecuteMethod(), and AcpiPsParseAml().

AcpiPsGetParentScope()

ACPI_PARSE_OBJECT * AcpiPsGetParentScope

(

ACPI_PARSE_STATE *

ParserState

)

Definition at line 65 of file psscope.c.

{
 
    return (ParserState->Scope->ParseScope.Op);
}

Referenced by AcpiDsLoad1BeginOp(), and AcpiPsCreateOp().

AcpiPsHasCompletedScope()

BOOLEAN AcpiPsHasCompletedScope

(

ACPI_PARSE_STATE *

ParserState

)

Definition at line 88 of file psscope.c.

{
 
    return ((BOOLEAN)
            ((ParserState->Aml >= ParserState->Scope->ParseScope.ArgEnd ||
             !ParserState->Scope->ParseScope.ArgCount)));
}

Referenced by AcpiPsCompleteOp(), and AcpiPsParseLoop().

AcpiPsInitScope()

ACPI_STATUS AcpiPsInitScope	(	ACPI_PARSE_STATE *	ParserState,
		ACPI_PARSE_OBJECT *	RootOp
	)

Definition at line 112 of file psscope.c.

{
    ACPI_GENERIC_STATE      *Scope;
 
 
    ACPI_FUNCTION_TRACE_PTR (PsInitScope, RootOp);
 
 
    Scope = AcpiUtCreateGenericState ();
    if (!Scope)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }
 
    Scope->Common.DescriptorType = ACPI_DESC_TYPE_STATE_RPSCOPE;
    Scope->ParseScope.Op = RootOp;
    Scope->ParseScope.ArgCount = ACPI_VAR_ARGS;
    Scope->ParseScope.ArgEnd = ParserState->AmlEnd;
    Scope->ParseScope.PkgEnd = ParserState->AmlEnd;
 
    ParserState->Scope = Scope;
    ParserState->StartOp = RootOp;
 
    return_ACPI_STATUS (AE_OK);
}

Referenced by AcpiDsInitAmlWalk().

AcpiPsPopScope()

void AcpiPsPopScope	(	ACPI_PARSE_STATE *	ParserState,
		ACPI_PARSE_OBJECT **	Op,
		UINT32 *	ArgList,
		UINT32 *	ArgCount
	)

Definition at line 219 of file psscope.c.

{
    ACPI_GENERIC_STATE      *Scope = ParserState->Scope;
 
 
    ACPI_FUNCTION_TRACE (PsPopScope);
 
 
    /* Only pop the scope if there is in fact a next scope */
 
    if (Scope->Common.Next)
    {
        Scope = AcpiUtPopGenericState (&ParserState->Scope);
 
        /* Return to parsing previous op */
 
        *Op = Scope->ParseScope.Op;
        *ArgList = Scope->ParseScope.ArgList;
        *ArgCount = Scope->ParseScope.ArgCount;
        ParserState->PkgEnd = Scope->ParseScope.PkgEnd;
 
        /* All done with this scope state structure */
 
        AcpiUtDeleteGenericState (Scope);
    }
    else
    {
        /* Empty parse stack, prepare to fetch next opcode */
 
        *Op = NULL;
        *ArgList = 0;
        *ArgCount = 0;
    }
 
    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
        "Popped Op %p Args %X\n", *Op, *ArgCount));
    return_VOID;
}

Referenced by AcpiPsCompleteFinalOp(), AcpiPsCompleteOp(), and AcpiPsParseLoop().

AcpiPsPushScope()

ACPI_STATUS AcpiPsPushScope	(	ACPI_PARSE_STATE *	ParserState,
		ACPI_PARSE_OBJECT *	Op,
		UINT32	RemainingArgs,
		UINT32	ArgCount
	)

Definition at line 157 of file psscope.c.

{
    ACPI_GENERIC_STATE      *Scope;
 
 
    ACPI_FUNCTION_TRACE_PTR (PsPushScope, Op);
 
 
    Scope = AcpiUtCreateGenericState ();
    if (!Scope)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }
 
    Scope->Common.DescriptorType = ACPI_DESC_TYPE_STATE_PSCOPE;
    Scope->ParseScope.Op = Op;
    Scope->ParseScope.ArgList = RemainingArgs;
    Scope->ParseScope.ArgCount = ArgCount;
    Scope->ParseScope.PkgEnd = ParserState->PkgEnd;
 
    /* Push onto scope stack */
 
    AcpiUtPushGenericState (&ParserState->Scope, Scope);
 
    if (ArgCount == ACPI_VAR_ARGS)
    {
        /* Multiple arguments */
 
        Scope->ParseScope.ArgEnd = ParserState->PkgEnd;
    }
    else
    {
        /* Single argument */
 
        Scope->ParseScope.ArgEnd = ACPI_TO_POINTER (ACPI_MAX_PTR);
    }
 
    return_ACPI_STATUS (AE_OK);
}

Referenced by AcpiPsParseLoop().