audk/MdeModulePkg/Universal/BdsDxe/String.c

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/** @file
String support
Copyright (c) 2004 - 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 "Bds.h"
#include "Language.h"
#include "FrontPage.h"
EFI_HII_HANDLE gStringPackHandle;
EFI_GUID mBdsStringPackGuid = {
0x7bac95d3, 0xddf, 0x42f3, 0x9e, 0x24, 0x7c, 0x64, 0x49, 0x40, 0x37, 0x9a
};
/**
Initialize HII global accessor for string support
@retval EFI_SUCCESS String support initialize success.
**/
EFI_STATUS
InitializeStringSupport (
VOID
)
{
EFI_STATUS Status;
EFI_HANDLE DriverHandle;
EFI_HII_PACKAGE_LIST_HEADER *PackageList;
Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &gHiiDatabase);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Create driver handle used by HII database
//
Status = HiiLibCreateHiiDriverHandle (&DriverHandle);
if (EFI_ERROR (Status)) {
return Status;
}
PackageList = HiiLibPreparePackageList (1, &mBdsStringPackGuid, &BdsDxeStrings);
ASSERT (PackageList != NULL);
Status = gHiiDatabase->NewPackageList (
gHiiDatabase,
PackageList,
DriverHandle,
&gStringPackHandle
);
FreePool (PackageList);
return Status;
}
/**
Get string by string id from HII Interface
@param Id String ID.
@retval CHAR16 * String from ID.
@retval NULL If error occurs.
**/
CHAR16 *
GetStringById (
IN EFI_STRING_ID Id
)
{
CHAR16 *String;
String = NULL;
HiiLibGetStringFromHandle (gStringPackHandle, Id, &String);
return String;
}