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/** @file
Status Code Handler Driver which produces datahub handler and hook it
onto the DXE status code router.
Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "DatahubStatusCodeHandlerDxe.h"
EFI_EVENT mExitBootServicesEvent = NULL;
EFI_RSC_HANDLER_PROTOCOL *mRscHandlerProtocol = NULL;
/**
Unregister status code callback functions only available at boot time from
report status code router when exiting boot services.
@param Event Event whose notification function is being invoked.
@param Context Pointer to the notification function's context, which is
always zero in current implementation.
**/
VOID
EFIAPI
UnregisterBootTimeHandlers (
IN EFI_EVENT Event,
IN VOID *Context
)
{
mRscHandlerProtocol->Unregister (DataHubStatusCodeReportWorker);
}
/**
Entry point of DXE Status Code Driver.
This function is the entry point of this DXE Status Code Driver.
It initializes registers status code handlers, and registers event for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
**/
EFI_STATUS
EFIAPI
DatahubStatusCodeHandlerDxeEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
if (FeaturePcdGet (PcdStatusCodeUseDataHub)) {
Status = gBS->LocateProtocol (
&gEfiRscHandlerProtocolGuid,
NULL,
(VOID **) &mRscHandlerProtocol
);
ASSERT_EFI_ERROR (Status);
//
// Dispatch initialization request to supported devices
//
DataHubStatusCodeInitializeWorker ();
mRscHandlerProtocol->Register (DataHubStatusCodeReportWorker, TPL_HIGH_LEVEL);
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
UnregisterBootTimeHandlers,
NULL,
&gEfiEventExitBootServicesGuid,
&mExitBootServicesEvent
);
ASSERT_EFI_ERROR (Status);
}
return EFI_SUCCESS;
}
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