audk/MdeModulePkg/Library/ExtendedIfrSupportLib/IfrOpCodeCreation.c

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/** @file
Library Routines to create IFR independent of string data - assume tokens already exist
Primarily to be used for exporting op-codes at a label in pre-defined forms.
Copyright (c) 2007 - 2008, Intel Corporation. <BR>
All rights reserved. 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 "LibraryInternal.h"
/**
Create GUIDed opcode for banner. Banner opcode
EFI_IFR_EXTEND_OP_BANNER is extended opcode specific
to Intel's implementation.
@param Title String ID for title
@param LineNumber Line number for this banner
@param Alignment Alignment for this banner, left, center or right
@param Data Destination for the created opcode binary
@retval EFI_SUCCESS Opcode create success
@retval EFI_BUFFER_TOO_SMALL The space reserved in Data field is too small.
**/
EFI_STATUS
EFIAPI
CreateBannerOpCode (
IN EFI_STRING_ID Title,
IN UINT16 LineNumber,
IN UINT8 Alignment,
IN OUT EFI_HII_UPDATE_DATA *Data
)
{
EFI_IFR_GUID_BANNER Banner;
UINT8 *LocalBuffer;
ASSERT (Data != NULL && Data->Data != NULL);
if (Data->Offset + sizeof (EFI_IFR_GUID_BANNER) > Data->BufferSize) {
return EFI_BUFFER_TOO_SMALL;
}
Banner.Header.OpCode = EFI_IFR_GUID_OP;
Banner.Header.Length = sizeof (EFI_IFR_GUID_BANNER);
Banner.Header.Scope = 0;
CopyMem (&Banner.Guid, &mIfrVendorGuid, sizeof (EFI_IFR_GUID));
Banner.ExtendOpCode = EFI_IFR_EXTEND_OP_BANNER;
Banner.Title = Title;
Banner.LineNumber = LineNumber;
Banner.Alignment = Alignment;
LocalBuffer = (UINT8 *) Data->Data + Data->Offset;
CopyMem (LocalBuffer, &Banner, sizeof (EFI_IFR_GUID_BANNER));
Data->Offset += sizeof (EFI_IFR_GUID_BANNER);
return EFI_SUCCESS;
}