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/** @file
Copyright (c) 2018, 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 that 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.
**/
//
// Statements that include other files
//
#include "IioUdsDataDxe.h"
#define STRING_WIDTH_40 40
//
// Instantiation of Driver's private data.
//
EFI_IIO_UDS_DRIVER_PRIVATE mIioUdsPrivateData;
IIO_UDS *IioUdsData; // Pointer to UDS in Allocated Memory Pool
/**
Entry point for the driver.
@param ImageHandle - Image Handle.
@param SystemTable - EFI System Table.
@retval EFI_SUCCESS - Function has completed successfully.
**/
EFI_STATUS
EFIAPI
IioUdsDataInit (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HOB_GUID_TYPE *GuidHob;
IIO_UDS *UdsHobPtr;
EFI_GUID UniversalDataGuid = IIO_UNIVERSAL_DATA_GUID;
//
// Time to get the IIO_UDS HOB data stored in the PEI driver
//
GuidHob = GetFirstGuidHob (&UniversalDataGuid);
ASSERT (GuidHob != NULL);
if (GuidHob == NULL) {
return EFI_NOT_FOUND;
}
UdsHobPtr = GET_GUID_HOB_DATA(GuidHob);
//
// Allocate Memory Pool for Universal Data Storage so that protocol can expose it
//
Status = gBS->AllocatePool ( EfiReservedMemoryType, sizeof (IIO_UDS), (VOID **) &IioUdsData );
ASSERT_EFI_ERROR (Status);
//
// Initialize the Pool Memory with the data from the Hand-Off-Block
//
CopyMem(IioUdsData, UdsHobPtr, sizeof(IIO_UDS));
//
// Build the IIO_UDS driver instance for protocol publishing
//
ZeroMem (&mIioUdsPrivateData, sizeof (mIioUdsPrivateData));
mIioUdsPrivateData.Signature = EFI_IIO_UDS_DRIVER_PRIVATE_SIGNATURE;
mIioUdsPrivateData.IioUds.IioUdsPtr = IioUdsData;
mIioUdsPrivateData.IioUds.EnableVc = NULL;
//
// Install the IioUds Protocol.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&mIioUdsPrivateData.Handle,
&gEfiIioUdsProtocolGuid,
&mIioUdsPrivateData.IioUds,
NULL
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
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