FreeBSD/sys/contrib/dev/acpica/components/dispatcher/dswload2.c
/*******************************************************************************
 *
 * FUNCTION:    AcpiDsLoad2EndOp
 *
 * PARAMETERS:  WalkState       - Current state of the parse tree walk
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Ascending callback used during the loading of the namespace,
 *              both control methods and everything else.
 *
 ******************************************************************************/
AcpiDsLoad2EndOp
PARAMETERS:  WalkState       - Current state of the parse tree walk

Status

Ascending callback used during the loading of the namespace,
both control methods and everything else.
AcpiDsLoad2EndOp PARAMETERS : WalkState - Current state of the parse tree walk Status Ascending callback used during the loading of the namespace both control methods and everything else .
ACPI_STATUS
AcpiDsLoad2EndOp (
    ACPI_WALK_STATE         *WalkState)
{
    ACPI_PARSE_OBJECT       *Op;
    ACPI_STATUS             Status = AE_OK;
    ACPI_OBJECT_TYPE        ObjectType;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_PARSE_OBJECT       *Arg;
    ACPI_NAMESPACE_NODE     *NewNode;
#ifndef ACPI_NO_METHOD_EXECUTION
    UINT32                  i;
    UINT8                   RegionSpace;
#endif
    ACPI_FUNCTION_TRACE (DsLoad2EndOp);
    Op = WalkState->Op;
    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
        WalkState->OpInfo->Name, Op, WalkState));
    if (!(WalkState->OpInfo->Flags & AML_NSOBJECT))
    {
        return_ACPI_STATUS (AE_OK);
    }
    if (Op->Common.AmlOpcode == AML_SCOPE_OP)
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
            "Ending scope Op=%p State=%p\n", Op, WalkState));
    }
    ObjectType = WalkState->OpInfo->ObjectType;
    Node = Op->Common.Node;
    WalkState->Operands[0] = (void *) Node;
    WalkState->NumOperands = 1;
    if (AcpiNsOpensScope (ObjectType) &&
       (Op->Common.AmlOpcode != AML_INT_METHODCALL_OP))
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s) Popping scope for Op %p\n",
            AcpiUtGetTypeName (ObjectType), Op));
        Status = AcpiDsScopeStackPop (WalkState);
        if (ACPI_FAILURE (Status))
        {
            goto Cleanup;
        }
    }
    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
        "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
        AcpiPsGetOpcodeName (Op->Common.AmlOpcode), WalkState, Op, Node));
    Arg = Op->Common.Value.Arg;
    switch (WalkState->OpInfo->Type)
    {
#ifndef ACPI_NO_METHOD_EXECUTION
    case AML_TYPE_CREATE_FIELD:
        Status = AcpiDsCreateBufferField (Op, WalkState);
        break;
     case AML_TYPE_NAMED_FIELD:
        if (WalkState->MethodNode)
        {
            Status = AcpiDsInitFieldObjects (Op, WalkState);
        }
        switch (Op->Common.AmlOpcode)
        {
        case AML_INDEX_FIELD_OP:
            Status = AcpiDsCreateIndexField (
                Op, (ACPI_HANDLE) Arg->Common.Node, WalkState);
            break;
        case AML_BANK_FIELD_OP:
            Status = AcpiDsCreateBankField (Op, Arg->Common.Node, WalkState);
            break;
        case AML_FIELD_OP:
            Status = AcpiDsCreateField (Op, Arg->Common.Node, WalkState);
            break;
        default:
            break;
        }
        break;
     case AML_TYPE_NAMED_SIMPLE:
        Status = AcpiDsCreateOperands (WalkState, Arg);
        if (ACPI_FAILURE (Status))
        {
            goto Cleanup;
        }
        switch (Op->Common.AmlOpcode)
        {
        case AML_PROCESSOR_OP:
            Status = AcpiExCreateProcessor (WalkState);
            break;
        case AML_POWER_RES_OP:
            Status = AcpiExCreatePowerResource (WalkState);
            break;
        case AML_MUTEX_OP:
            Status = AcpiExCreateMutex (WalkState);
            break;
        case AML_EVENT_OP:
            Status = AcpiExCreateEvent (WalkState);
            break;
        case AML_ALIAS_OP:
            Status = AcpiExCreateAlias (WalkState);
            break;
        default:
            Status = AE_OK;
            goto Cleanup;
        }
        for (i = 1; i < WalkState->NumOperands; i++)
        {
            AcpiUtRemoveReference (WalkState->Operands[i]);
            WalkState->Operands[i] = NULL;
        }
        break;
#endif 
    case AML_TYPE_NAMED_COMPLEX:
        switch (Op->Common.AmlOpcode)
        {
#ifndef ACPI_NO_METHOD_EXECUTION
        case AML_REGION_OP:
        case AML_DATA_REGION_OP:
            if (Op->Common.AmlOpcode == AML_REGION_OP)
            {
                RegionSpace = (ACPI_ADR_SPACE_TYPE)
                    ((Op->Common.Value.Arg)->Common.Value.Integer);
            }
            else
            {
                RegionSpace = ACPI_ADR_SPACE_DATA_TABLE;
            }
            if (WalkState->MethodNode)
            {
                Status = AcpiExCreateRegion (Op->Named.Data,
                    Op->Named.Length, RegionSpace, WalkState);
                if (ACPI_FAILURE (Status))
                {
                    return_ACPI_STATUS (Status);
                }
                AcpiExExitInterpreter ();
            }
            Status = AcpiEvInitializeRegion (
                AcpiNsGetAttachedObject (Node), FALSE);
            if (WalkState->MethodNode)
            {
                AcpiExEnterInterpreter ();
            }
            if (ACPI_FAILURE (Status))
            {
                if (AE_NOT_EXIST == Status)
                {
                    Status = AE_OK;
                }
            }
            break;
        case AML_NAME_OP:
            Status = AcpiDsCreateNode (WalkState, Node, Op);
            break;
        case AML_METHOD_OP:
            ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
                "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
                WalkState, Op, Op->Named.Node));
            if (!AcpiNsGetAttachedObject (Op->Named.Node))
            {
                WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
                WalkState->NumOperands = 1;
                Status = AcpiDsCreateOperands (
                    WalkState, Op->Common.Value.Arg);
                if (ACPI_SUCCESS (Status))
                {
                    Status = AcpiExCreateMethod (
                        Op->Named.Data, Op->Named.Length, WalkState);
                }
                WalkState->Operands[0] = NULL;
                WalkState->NumOperands = 0;
                if (ACPI_FAILURE (Status))
                {
                    return_ACPI_STATUS (Status);
                }
            }
            break;
#endif 
        default:
            break;
        }
        break;
    case AML_CLASS_INTERNAL:
        break;
    case AML_CLASS_METHOD_CALL:
        ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
            "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
            WalkState, Op, Node));
        Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Common.Value.String,
            ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS2,
            ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
            WalkState, &(NewNode));
        if (ACPI_SUCCESS (Status))
        {
            if (NewNode->Type != ACPI_TYPE_METHOD)
            {
                Status = AE_AML_OPERAND_TYPE;
            }
            Op->Common.Node = NewNode;
        }
        else
        {
            ACPI_ERROR_NAMESPACE (Arg->Common.Value.String, Status);
        }
        break;
    default:
        break;
    }
Cleanup:
    WalkState->Operands[0] = NULL;
    WalkState->NumOperands = 0;
    return_ACPI_STATUS (Status);
}
ACPI_STATUS AcpiDsLoad2EndOp ( ACPI_WALK_STATE * WalkState ) { ACPI_PARSE_OBJECT * Op ; ACPI_STATUS Status = AE_OK ; ACPI_OBJECT_TYPE ObjectType ; ACPI_NAMESPACE_NODE * Node ; ACPI_PARSE_OBJECT * Arg ; ACPI_NAMESPACE_NODE * NewNode ; #ifndef ACPI_NO_METHOD_EXECUTION UINT32 i ; UINT8 RegionSpace ; #endif ACPI_FUNCTION_TRACE ( DsLoad2EndOp ) ; Op = WalkState -> Op ; ACPI_DEBUG_PRINT ( ( ACPI_DB_DISPATCH , " \n " , WalkState -> OpInfo -> Name , Op , WalkState ) ) ; if ( ! ( WalkState -> OpInfo -> Flags & AML_NSOBJECT ) ) { return_ACPI_STATUS ( AE_OK ) ; } if ( Op -> Common . AmlOpcode == AML_SCOPE_OP ) { ACPI_DEBUG_PRINT ( ( ACPI_DB_DISPATCH , " \n " , Op , WalkState ) ) ; } ObjectType = WalkState -> OpInfo -> ObjectType ; Node = Op -> Common . Node ; WalkState -> Operands [ 0 ] = ( void * ) Node ; WalkState -> NumOperands = 1 ; if ( AcpiNsOpensScope ( ObjectType ) && ( Op -> Common . AmlOpcode != AML_INT_METHODCALL_OP ) ) { ACPI_DEBUG_PRINT ( ( ACPI_DB_DISPATCH , " \n " , AcpiUtGetTypeName ( ObjectType ) , Op ) ) ; Status = AcpiDsScopeStackPop ( WalkState ) ; if ( ACPI_FAILURE ( Status ) ) { goto Cleanup ; } } ACPI_DEBUG_PRINT ( ( ACPI_DB_DISPATCH , " \n " , AcpiPsGetOpcodeName ( Op -> Common . AmlOpcode ) , WalkState , Op , Node ) ) ; Arg = Op -> Common . Value . Arg ; switch ( WalkState -> OpInfo -> Type ) { #ifndef ACPI_NO_METHOD_EXECUTION case AML_TYPE_CREATE_FIELD : Status = AcpiDsCreateBufferField ( Op , WalkState ) ; break ; case AML_TYPE_NAMED_FIELD : if ( WalkState -> MethodNode ) { Status = AcpiDsInitFieldObjects ( Op , WalkState ) ; } switch ( Op -> Common . AmlOpcode ) { case AML_INDEX_FIELD_OP : Status = AcpiDsCreateIndexField ( Op , ( ACPI_HANDLE ) Arg -> Common . Node , WalkState ) ; break ; case AML_BANK_FIELD_OP : Status = AcpiDsCreateBankField ( Op , Arg -> Common . Node , WalkState ) ; break ; case AML_FIELD_OP : Status = AcpiDsCreateField ( Op , Arg -> Common . Node , WalkState ) ; break ; default : break ; } break ; case AML_TYPE_NAMED_SIMPLE : Status = AcpiDsCreateOperands ( WalkState , Arg ) ; if ( ACPI_FAILURE ( Status ) ) { goto Cleanup ; } switch ( Op -> Common . AmlOpcode ) { case AML_PROCESSOR_OP : Status = AcpiExCreateProcessor ( WalkState ) ; break ; case AML_POWER_RES_OP : Status = AcpiExCreatePowerResource ( WalkState ) ; break ; case AML_MUTEX_OP : Status = AcpiExCreateMutex ( WalkState ) ; break ; case AML_EVENT_OP : Status = AcpiExCreateEvent ( WalkState ) ; break ; case AML_ALIAS_OP : Status = AcpiExCreateAlias ( WalkState ) ; break ; default : Status = AE_OK ; goto Cleanup ; } for ( i = 1 ; i < WalkState -> NumOperands ; i ++ ) { AcpiUtRemoveReference ( WalkState -> Operands [ i ] ) ; WalkState -> Operands [ i ] = NULL ; } break ; #endif case AML_TYPE_NAMED_COMPLEX : switch ( Op -> Common . AmlOpcode ) { #ifndef ACPI_NO_METHOD_EXECUTION case AML_REGION_OP : case AML_DATA_REGION_OP : if ( Op -> Common . AmlOpcode == AML_REGION_OP ) { RegionSpace = ( ACPI_ADR_SPACE_TYPE ) ( ( Op -> Common . Value . Arg ) -> Common . Value . Integer ) ; } else { RegionSpace = ACPI_ADR_SPACE_DATA_TABLE ; } if ( WalkState -> MethodNode ) { Status = AcpiExCreateRegion ( Op -> Named . Data , Op -> Named . Length , RegionSpace , WalkState ) ; if ( ACPI_FAILURE ( Status ) ) { return_ACPI_STATUS ( Status ) ; } AcpiExExitInterpreter ( ) ; } Status = AcpiEvInitializeRegion ( AcpiNsGetAttachedObject ( Node ) , FALSE ) ; if ( WalkState -> MethodNode ) { AcpiExEnterInterpreter ( ) ; } if ( ACPI_FAILURE ( Status ) ) { if ( AE_NOT_EXIST == Status ) { Status = AE_OK ; } } break ; case AML_NAME_OP : Status = AcpiDsCreateNode ( WalkState , Node , Op ) ; break ; case AML_METHOD_OP : ACPI_DEBUG_PRINT ( ( ACPI_DB_DISPATCH , " \n " , WalkState , Op , Op -> Named . Node ) ) ; if ( ! AcpiNsGetAttachedObject ( Op -> Named . Node ) ) { WalkState -> Operands [ 0 ] = ACPI_CAST_PTR ( void , Op -> Named . Node ) ; WalkState -> NumOperands = 1 ; Status = AcpiDsCreateOperands ( WalkState , Op -> Common . Value . Arg ) ; if ( ACPI_SUCCESS ( Status ) ) { Status = AcpiExCreateMethod ( Op -> Named . Data , Op -> Named . Length , WalkState ) ; } WalkState -> Operands [ 0 ] = NULL ; WalkState -> NumOperands = 0 ; if ( ACPI_FAILURE ( Status ) ) { return_ACPI_STATUS ( Status ) ; } } break ; #endif default : break ; } break ; case AML_CLASS_INTERNAL : break ; case AML_CLASS_METHOD_CALL : ACPI_DEBUG_PRINT ( ( ACPI_DB_DISPATCH , " \n " , WalkState , Op , Node ) ) ; Status = AcpiNsLookup ( WalkState -> ScopeInfo , Arg -> Common . Value . String , ACPI_TYPE_ANY , ACPI_IMODE_LOAD_PASS2 , ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE , WalkState , & ( NewNode ) ) ; if ( ACPI_SUCCESS ( Status ) ) { if ( NewNode -> Type != ACPI_TYPE_METHOD ) { Status = AE_AML_OPERAND_TYPE ; } Op -> Common . Node = NewNode ; } else { ACPI_ERROR_NAMESPACE ( Arg -> Common . Value . String , Status ) ; } break ; default : break ; } Cleanup : WalkState -> Operands [ 0 ] = NULL ; WalkState -> NumOperands = 0 ; return_ACPI_STATUS ( Status ) ; }
FUNCTION:    AcpiDsLoad2EndOp
 PARAMETERS:  WalkState       - Current state of the parse tree walk
FUNCTION : AcpiDsLoad2EndOp PARAMETERS : WalkState - Current state of the parse tree walk
/* Check if opcode had an associated namespace object */ /*
     * Get the Node/name from the earlier lookup
     * (It was saved in the *op structure)
     */ /*
     * Put the Node on the object stack (Contains the ACPI Name of
     * this object)
     */ /* Pop the scope stack */ /*
     * Named operations are as follows:
     *
     * AML_ALIAS
     * AML_BANKFIELD
     * AML_CREATEBITFIELD
     * AML_CREATEBYTEFIELD
     * AML_CREATEDWORDFIELD
     * AML_CREATEFIELD
     * AML_CREATEQWORDFIELD
     * AML_CREATEWORDFIELD
     * AML_DATA_REGION
     * AML_DEVICE
     * AML_EVENT
     * AML_FIELD
     * AML_INDEXFIELD
     * AML_METHOD
     * AML_METHODCALL
     * AML_MUTEX
     * AML_NAME
     * AML_NAMEDFIELD
     * AML_OPREGION
     * AML_POWERRES
     * AML_PROCESSOR
     * AML_SCOPE
     * AML_THERMALZONE
     */ /* Decode the opcode */ /*
         * Create the field object, but the field buffer and index must
         * be evaluated later during the execution phase
         */ /*
         * If we are executing a method, initialize the field
         */ /* All NAMED_FIELD opcodes must be handled above */ /* Unknown opcode */ /* Delete operands */ /* ACPI_NO_METHOD_EXECUTION */ /*
             * The OpRegion is not fully parsed at this time. The only valid
             * argument is the SpaceId. (We must save the address of the
             * AML of the address and length operands)
             *
             * If we have a valid region, initialize it. The namespace is
             * unlocked at this point.
             *
             * Need to unlock interpreter if it is locked (if we are running
             * a control method), in order to allow _REG methods to be run
             * during AcpiEvInitializeRegion.
             */ /*
                 * Executing a method: initialize the region and unlock
                 * the interpreter
                 */ /*
                 *  If AE_NOT_EXIST is returned, it is not fatal
                 *  because many regions get created before a handler
                 *  is installed for said region.
                 */ /*
             * MethodOp PkgLength NameString MethodFlags TermList
             *
             * Note: We must create the method node/object pair as soon as we
             * see the method declaration. This allows later pass1 parsing
             * of invocations of the method (need to know the number of
             * arguments.)
             */ /* ACPI_NO_METHOD_EXECUTION */ /* All NAMED_COMPLEX opcodes must be handled above */ /* case AML_INT_NAMEPATH_OP: */ /*
         * Lookup the method name and save the Node
         */ /*
             * Make sure that what we found is indeed a method
             * We didn't search for a method on purpose, to see if the name
             * would resolve
             */ /* We could put the returned object (Node) on the object stack for
             * later, but for now, we will put it in the "op" object that the
             * parser uses, so we can get it again at the end of this scope
             */ /* Remove the Node pushed at the very beginning */