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