Subversion Repositories Kolibri OS

/******************************************************************************

 *

 * Module Name: nsinit - namespace initialization

 *

 *****************************************************************************/

/******************************************************************************

 *

 * 1. Copyright Notice

 *

 * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.

 * All rights reserved.

 *

 * 2. License

 *

 * 2.1. This is your license from Intel Corp. under its intellectual property

 * rights.  You may have additional license terms from the party that provided

 * you this software, covering your right to use that party's intellectual

 * property rights.

 *

 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a

 * copy of the source code appearing in this file ("Covered Code") an

 * irrevocable, perpetual, worldwide license under Intel's copyrights in the

 * base code distributed originally by Intel ("Original Intel Code") to copy,

 * make derivatives, distribute, use and display any portion of the Covered

 * Code in any form, with the right to sublicense such rights; and

 *

 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent

 * license (with the right to sublicense), under only those claims of Intel

 * patents that are infringed by the Original Intel Code, to make, use, sell,

 * offer to sell, and import the Covered Code and derivative works thereof

 * solely to the minimum extent necessary to exercise the above copyright

 * license, and in no event shall the patent license extend to any additions

 * to or modifications of the Original Intel Code.  No other license or right

 * is granted directly or by implication, estoppel or otherwise;

 *

 * The above copyright and patent license is granted only if the following

 * conditions are met:

 *

 * 3. Conditions

 *

 * 3.1. Redistribution of Source with Rights to Further Distribute Source.

 * Redistribution of source code of any substantial portion of the Covered

 * Code or modification with rights to further distribute source must include

 * the above Copyright Notice, the above License, this list of Conditions,

 * and the following Disclaimer and Export Compliance provision.  In addition,

 * Licensee must cause all Covered Code to which Licensee contributes to

 * contain a file documenting the changes Licensee made to create that Covered

 * Code and the date of any change.  Licensee must include in that file the

 * documentation of any changes made by any predecessor Licensee.  Licensee

 * must include a prominent statement that the modification is derived,

 * directly or indirectly, from Original Intel Code.

 *

 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.

 * Redistribution of source code of any substantial portion of the Covered

 * Code or modification without rights to further distribute source must

 * include the following Disclaimer and Export Compliance provision in the

 * documentation and/or other materials provided with distribution.  In

 * addition, Licensee may not authorize further sublicense of source of any

 * portion of the Covered Code, and must include terms to the effect that the

 * license from Licensee to its licensee is limited to the intellectual

 * property embodied in the software Licensee provides to its licensee, and

 * not to intellectual property embodied in modifications its licensee may

 * make.

 *

 * 3.3. Redistribution of Executable. Redistribution in executable form of any

 * substantial portion of the Covered Code or modification must reproduce the

 * above Copyright Notice, and the following Disclaimer and Export Compliance

 * provision in the documentation and/or other materials provided with the

 * distribution.

 *

 * 3.4. Intel retains all right, title, and interest in and to the Original

 * Intel Code.

 *

 * 3.5. Neither the name Intel nor any other trademark owned or controlled by

 * Intel shall be used in advertising or otherwise to promote the sale, use or

 * other dealings in products derived from or relating to the Covered Code

 * without prior written authorization from Intel.

 *

 * 4. Disclaimer and Export Compliance

 *

 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED

 * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE

 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,

 * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY

 * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY

 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A

 * PARTICULAR PURPOSE.

 *

 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES

 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR

 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,

 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY

 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL

 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS

 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY

 * LIMITED REMEDY.

 *

 * 4.3. Licensee shall not export, either directly or indirectly, any of this

 * software or system incorporating such software without first obtaining any

 * required license or other approval from the U. S. Department of Commerce or

 * any other agency or department of the United States Government.  In the

 * event Licensee exports any such software from the United States or

 * re-exports any such software from a foreign destination, Licensee shall

 * ensure that the distribution and export/re-export of the software is in

 * compliance with all laws, regulations, orders, or other restrictions of the

 * U.S. Export Administration Regulations. Licensee agrees that neither it nor

 * any of its subsidiaries will export/re-export any technical data, process,

 * software, or service, directly or indirectly, to any country for which the

 * United States government or any agency thereof requires an export license,

 * other governmental approval, or letter of assurance, without first obtaining

 * such license, approval or letter.

 *

 *****************************************************************************/

#define __NSXFINIT_C__

#include "acpi.h"

#include "accommon.h"

#include "acnamesp.h"

#include "acdispat.h"

#include "acinterp.h"

#define _COMPONENT          ACPI_NAMESPACE

        ACPI_MODULE_NAME    ("nsinit")

/* Local prototypes */

static ACPI_STATUS

AcpiNsInitOneObject (

    ACPI_HANDLE             ObjHandle,

    UINT32                  Level,

    void                    *Context,

    void                    **ReturnValue);

static ACPI_STATUS

AcpiNsInitOneDevice (

    ACPI_HANDLE             ObjHandle,

    UINT32                  NestingLevel,

    void                    *Context,

    void                    **ReturnValue);

static ACPI_STATUS

AcpiNsFindIniMethods (

    ACPI_HANDLE             ObjHandle,

    UINT32                  NestingLevel,

    void                    *Context,

    void                    **ReturnValue);

/*******************************************************************************

 *

 * FUNCTION:    AcpiNsInitializeObjects

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Walk the entire namespace and perform any necessary

 *              initialization on the objects found therein

 *

 ******************************************************************************/

ACPI_STATUS

AcpiNsInitializeObjects (

    void)

{

    ACPI_STATUS             Status;

    ACPI_INIT_WALK_INFO     Info;

    ACPI_FUNCTION_TRACE (NsInitializeObjects);

    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,

        "**** Starting initialization of namespace objects ****\n"));

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,

        "Completing Region/Field/Buffer/Package initialization:"));

    /* Set all init info to zero */

    ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));

    /* Walk entire namespace from the supplied root */

    Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,

                ACPI_UINT32_MAX, AcpiNsInitOneObject, NULL,

                &Info, NULL);

    if (ACPI_FAILURE (Status))

    {

        ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace"));

    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,

        "\nInitialized %u/%u Regions %u/%u Fields %u/%u "

        "Buffers %u/%u Packages (%u nodes)\n",

        Info.OpRegionInit,  Info.OpRegionCount,

        Info.FieldInit,     Info.FieldCount,

        Info.BufferInit,    Info.BufferCount,

        Info.PackageInit,   Info.PackageCount, Info.ObjectCount));

    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,

        "%u Control Methods found\n", Info.MethodCount));

    ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,

        "%u Op Regions found\n", Info.OpRegionCount));

    return_ACPI_STATUS (AE_OK);

}

/*******************************************************************************

 *

 * FUNCTION:    AcpiNsInitializeDevices

 *

 * PARAMETERS:  None

 *

 * RETURN:      ACPI_STATUS

 *

 * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.

 *              This means running _INI on all present devices.

 *

 *              Note: We install PCI config space handler on region access,

 *              not here.

 *

 ******************************************************************************/

ACPI_STATUS

AcpiNsInitializeDevices (

    void)

{

    ACPI_STATUS             Status;

    ACPI_DEVICE_WALK_INFO   Info;

    ACPI_FUNCTION_TRACE (NsInitializeDevices);

    /* Init counters */

    Info.DeviceCount = 0;

    Info.Num_STA = 0;

    Info.Num_INI = 0;

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,

        "Initializing Device/Processor/Thermal objects "

        "by executing _INI methods:"));

    /* Tree analysis: find all subtrees that contain _INI methods */

    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,

                ACPI_UINT32_MAX, FALSE, AcpiNsFindIniMethods, NULL, &Info, NULL);

    if (ACPI_FAILURE (Status))

    {

        goto ErrorExit;

    }

    /* Allocate the evaluation information block */

    Info.EvaluateInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));

    if (!Info.EvaluateInfo)

    {

        Status = AE_NO_MEMORY;

        goto ErrorExit;

    }

    /*

     * Execute the "global" _INI method that may appear at the root. This

     * support is provided for Windows compatibility (Vista+) and is not

     * part of the ACPI specification.

     */

    Info.EvaluateInfo->PrefixNode = AcpiGbl_RootNode;

    Info.EvaluateInfo->Pathname = METHOD_NAME__INI;

    Info.EvaluateInfo->Parameters = NULL;

    Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE;

    Status = AcpiNsEvaluate (Info.EvaluateInfo);

    if (ACPI_SUCCESS (Status))

    {

        Info.Num_INI++;

    }

    /* Walk namespace to execute all _INIs on present devices */

    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,

                ACPI_UINT32_MAX, FALSE, AcpiNsInitOneDevice, NULL, &Info, NULL);

    /*

     * Any _OSI requests should be completed by now. If the BIOS has

     * requested any Windows OSI strings, we will always truncate

     * I/O addresses to 16 bits -- for Windows compatibility.

     */

    if (AcpiGbl_OsiData >= ACPI_OSI_WIN_2000)

    {

        AcpiGbl_TruncateIoAddresses = TRUE;

    }

    ACPI_FREE (Info.EvaluateInfo);

    if (ACPI_FAILURE (Status))

    {

        goto ErrorExit;

    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,

        "\nExecuted %u _INI methods requiring %u _STA executions "

        "(examined %u objects)\n",

        Info.Num_INI, Info.Num_STA, Info.DeviceCount));

    return_ACPI_STATUS (Status);

ErrorExit:

    ACPI_EXCEPTION ((AE_INFO, Status, "During device initialization"));

    return_ACPI_STATUS (Status);

}

/*******************************************************************************

 *

 * FUNCTION:    AcpiNsInitOneObject

 *

 * PARAMETERS:  ObjHandle       - Node

 *              Level           - Current nesting level

 *              Context         - Points to a init info struct

 *              ReturnValue     - Not used

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Callback from AcpiWalkNamespace.  Invoked for every object

 *              within the  namespace.

 *

 *              Currently, the only objects that require initialization are:

 *              1) Methods

 *              2) Op Regions

 *

 ******************************************************************************/

static ACPI_STATUS

AcpiNsInitOneObject (

    ACPI_HANDLE             ObjHandle,

    UINT32                  Level,

    void                    *Context,

    void                    **ReturnValue)

{

    ACPI_OBJECT_TYPE        Type;

    ACPI_STATUS             Status = AE_OK;

    ACPI_INIT_WALK_INFO     *Info = (ACPI_INIT_WALK_INFO *) Context;

    ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;

    ACPI_OPERAND_OBJECT     *ObjDesc;

    ACPI_FUNCTION_NAME (NsInitOneObject);

    Info->ObjectCount++;

    /* And even then, we are only interested in a few object types */

    Type = AcpiNsGetType (ObjHandle);

    ObjDesc = AcpiNsGetAttachedObject (Node);

    if (!ObjDesc)

    {

        return (AE_OK);

    }

    /* Increment counters for object types we are looking for */

    switch (Type)

    {

    case ACPI_TYPE_REGION:

        Info->OpRegionCount++;

        break;

    case ACPI_TYPE_BUFFER_FIELD:

        Info->FieldCount++;

        break;

    case ACPI_TYPE_LOCAL_BANK_FIELD:

        Info->FieldCount++;

        break;

    case ACPI_TYPE_BUFFER:

        Info->BufferCount++;

        break;

    case ACPI_TYPE_PACKAGE:

        Info->PackageCount++;

        break;

    default:

        /* No init required, just exit now */

        return (AE_OK);

    }

    /* If the object is already initialized, nothing else to do */

    if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)

    {

        return (AE_OK);

    }

    /* Must lock the interpreter before executing AML code */

    AcpiExEnterInterpreter ();

    /*

     * Each of these types can contain executable AML code within the

     * declaration.

     */

    switch (Type)

    {

    case ACPI_TYPE_REGION:

        Info->OpRegionInit++;

        Status = AcpiDsGetRegionArguments (ObjDesc);

        break;

    case ACPI_TYPE_BUFFER_FIELD:

        Info->FieldInit++;

        Status = AcpiDsGetBufferFieldArguments (ObjDesc);

        break;

    case ACPI_TYPE_LOCAL_BANK_FIELD:

        Info->FieldInit++;

        Status = AcpiDsGetBankFieldArguments (ObjDesc);

        break;

    case ACPI_TYPE_BUFFER:

        Info->BufferInit++;

        Status = AcpiDsGetBufferArguments (ObjDesc);

        break;

    case ACPI_TYPE_PACKAGE:

        Info->PackageInit++;

        Status = AcpiDsGetPackageArguments (ObjDesc);

        break;

    default:

        /* No other types can get here */

        break;

    }

    if (ACPI_FAILURE (Status))

    {

        ACPI_EXCEPTION ((AE_INFO, Status,

            "Could not execute arguments for [%4.4s] (%s)",

            AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type)));

    }

    /*

     * Print a dot for each object unless we are going to print the entire

     * pathname

     */

    if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))

    {

        ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));

    }

    /*

     * We ignore errors from above, and always return OK, since we don't want

     * to abort the walk on any single error.

     */

    AcpiExExitInterpreter ();

    return (AE_OK);

}

/*******************************************************************************

 *

 * FUNCTION:    AcpiNsFindIniMethods

 *

 * PARAMETERS:  ACPI_WALK_CALLBACK

 *

 * RETURN:      ACPI_STATUS

 *

 * DESCRIPTION: Called during namespace walk. Finds objects named _INI under

 *              device/processor/thermal objects, and marks the entire subtree

 *              with a SUBTREE_HAS_INI flag. This flag is used during the

 *              subsequent device initialization walk to avoid entire subtrees

 *              that do not contain an _INI.

 *

 ******************************************************************************/

static ACPI_STATUS

AcpiNsFindIniMethods (

    ACPI_HANDLE             ObjHandle,

    UINT32                  NestingLevel,

    void                    *Context,

    void                    **ReturnValue)

{

    ACPI_DEVICE_WALK_INFO   *Info = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);

    ACPI_NAMESPACE_NODE     *Node;

    ACPI_NAMESPACE_NODE     *ParentNode;

    /* Keep count of device/processor/thermal objects */

    Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);

    if ((Node->Type == ACPI_TYPE_DEVICE)    ||

        (Node->Type == ACPI_TYPE_PROCESSOR) ||

        (Node->Type == ACPI_TYPE_THERMAL))

    {

        Info->DeviceCount++;

        return (AE_OK);

    }

    /* We are only looking for methods named _INI */

    if (!ACPI_COMPARE_NAME (Node->Name.Ascii, METHOD_NAME__INI))

    {

        return (AE_OK);

    }

    /*

     * The only _INI methods that we care about are those that are

     * present under Device, Processor, and Thermal objects.

     */

    ParentNode = Node->Parent;

    switch (ParentNode->Type)

    {

    case ACPI_TYPE_DEVICE:

    case ACPI_TYPE_PROCESSOR:

    case ACPI_TYPE_THERMAL:

        /* Mark parent and bubble up the INI present flag to the root */

        while (ParentNode)

        {

            ParentNode->Flags |= ANOBJ_SUBTREE_HAS_INI;

            ParentNode = ParentNode->Parent;

        }

        break;

    default:

        break;

    }

    return (AE_OK);

}

/*******************************************************************************

 *

 * FUNCTION:    AcpiNsInitOneDevice

 *

 * PARAMETERS:  ACPI_WALK_CALLBACK

 *

 * RETURN:      ACPI_STATUS

 *

 * DESCRIPTION: This is called once per device soon after ACPI is enabled

 *              to initialize each device. It determines if the device is

 *              present, and if so, calls _INI.

 *

 ******************************************************************************/

static ACPI_STATUS

AcpiNsInitOneDevice (

    ACPI_HANDLE             ObjHandle,

    UINT32                  NestingLevel,

    void                    *Context,

    void                    **ReturnValue)

{

    ACPI_DEVICE_WALK_INFO   *WalkInfo = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);

    ACPI_EVALUATE_INFO      *Info = WalkInfo->EvaluateInfo;

    UINT32                  Flags;

    ACPI_STATUS             Status;

    ACPI_NAMESPACE_NODE     *DeviceNode;

    ACPI_FUNCTION_TRACE (NsInitOneDevice);

    /* We are interested in Devices, Processors and ThermalZones only */

    DeviceNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);

    if ((DeviceNode->Type != ACPI_TYPE_DEVICE)    &&

        (DeviceNode->Type != ACPI_TYPE_PROCESSOR) &&

        (DeviceNode->Type != ACPI_TYPE_THERMAL))

    {

        return_ACPI_STATUS (AE_OK);

    }

    /*

     * Because of an earlier namespace analysis, all subtrees that contain an

     * _INI method are tagged.

     *

     * If this device subtree does not contain any _INI methods, we

     * can exit now and stop traversing this entire subtree.

     */

    if (!(DeviceNode->Flags & ANOBJ_SUBTREE_HAS_INI))

    {

        return_ACPI_STATUS (AE_CTRL_DEPTH);

    }

    /*

     * Run _STA to determine if this device is present and functioning. We

     * must know this information for two important reasons (from ACPI spec):

     *

     * 1) We can only run _INI if the device is present.

     * 2) We must abort the device tree walk on this subtree if the device is

     *    not present and is not functional (we will not examine the children)

     *

     * The _STA method is not required to be present under the device, we

     * assume the device is present if _STA does not exist.

     */

    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (

        ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__STA));

    Status = AcpiUtExecute_STA (DeviceNode, &Flags);

    if (ACPI_FAILURE (Status))

    {

        /* Ignore error and move on to next device */

        return_ACPI_STATUS (AE_OK);

    }

    /*

     * Flags == -1 means that _STA was not found. In this case, we assume that

     * the device is both present and functional.

     *

     * From the ACPI spec, description of _STA:

     *

     * "If a device object (including the processor object) does not have an

     * _STA object, then OSPM assumes that all of the above bits are set (in

     * other words, the device is present, ..., and functioning)"

     */

    if (Flags != ACPI_UINT32_MAX)

    {

        WalkInfo->Num_STA++;

    }

    /*

     * Examine the PRESENT and FUNCTIONING status bits

     *

     * Note: ACPI spec does not seem to specify behavior for the present but

     * not functioning case, so we assume functioning if present.

     */

    if (!(Flags & ACPI_STA_DEVICE_PRESENT))

    {

        /* Device is not present, we must examine the Functioning bit */

        if (Flags & ACPI_STA_DEVICE_FUNCTIONING)

        {

            /*

             * Device is not present but is "functioning". In this case,

             * we will not run _INI, but we continue to examine the children

             * of this device.

             *

             * From the ACPI spec, description of _STA: (Note - no mention

             * of whether to run _INI or not on the device in question)

             *

             * "_STA may return bit 0 clear (not present) with bit 3 set

             * (device is functional). This case is used to indicate a valid

             * device for which no device driver should be loaded (for example,

             * a bridge device.) Children of this device may be present and

             * valid. OSPM should continue enumeration below a device whose

             * _STA returns this bit combination"

             */

            return_ACPI_STATUS (AE_OK);

        }

        else

        {

            /*

             * Device is not present and is not functioning. We must abort the

             * walk of this subtree immediately -- don't look at the children

             * of such a device.

             *

             * From the ACPI spec, description of _INI:

             *

             * "If the _STA method indicates that the device is not present,

             * OSPM will not run the _INI and will not examine the children

             * of the device for _INI methods"

             */

            return_ACPI_STATUS (AE_CTRL_DEPTH);

        }

    }

    /*

     * The device is present or is assumed present if no _STA exists.

     * Run the _INI if it exists (not required to exist)

     *

     * Note: We know there is an _INI within this subtree, but it may not be

     * under this particular device, it may be lower in the branch.

     */

    ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (

        ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__INI));

    Info->PrefixNode = DeviceNode;

    Info->Pathname = METHOD_NAME__INI;

    Info->Parameters = NULL;

    Info->Flags = ACPI_IGNORE_RETURN_VALUE;

    Status = AcpiNsEvaluate (Info);

    if (ACPI_SUCCESS (Status))

    {

        WalkInfo->Num_INI++;

        if ((AcpiDbgLevel <= ACPI_LV_ALL_EXCEPTIONS) &&

            (!(AcpiDbgLevel & ACPI_LV_INFO)))

        {

            ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));

        }

    }

#ifdef ACPI_DEBUG_OUTPUT

    else if (Status != AE_NOT_FOUND)

    {

        /* Ignore error and move on to next device */

        char *ScopeName = AcpiNsGetExternalPathname (Info->ResolvedNode);

        ACPI_EXCEPTION ((AE_INFO, Status, "during %s._INI execution",

            ScopeName));

        ACPI_FREE (ScopeName);

    }

#endif

    /* Ignore errors from above */

    Status = AE_OK;

    /*

     * The _INI method has been run if present; call the Global Initialization

     * Handler for this device.

     */

    if (AcpiGbl_InitHandler)

    {

        Status = AcpiGbl_InitHandler (DeviceNode, ACPI_INIT_DEVICE_INI);

    }

    return_ACPI_STATUS (Status);

}