UEFI HII: Merge UEFI HII support changes from branch.

[mirror_edk2.git] / MdeModulePkg / Universal / BdsDxe / String.c

/*++\r
\r
Copyright (c) 2004 - 2008, Intel Corporation\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
Module Name:\r
\r
  String.c\r
\r
Abstract:\r
\r
  String support\r
\r
--*/\r
\r
#include "Bds.h"\r
#include "Language.h"\r
#include "FrontPage.h"\r
\r
EFI_HII_HANDLE gStringPackHandle;\r
\r
EFI_GUID mBdsStringPackGuid = {\r
  0x7bac95d3, 0xddf, 0x42f3, 0x9e, 0x24, 0x7c, 0x64, 0x49, 0x40, 0x37, 0x9a\r
};\r
\r
EFI_STATUS\r
InitializeStringSupport (\r
  VOID\r
  )\r
/*++\r
\r
Routine Description:\r
  Initialize HII global accessor for string support\r
\r
Arguments:\r
  None\r
\r
Returns:\r
  EFI_SUCCESS - String support initialize success.\r
\r
--*/\r
{\r
  EFI_STATUS                   Status;\r
  EFI_HANDLE                   DriverHandle;\r
  EFI_HII_PACKAGE_LIST_HEADER  *PackageList;\r
\r
  Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &gHiiDatabase);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  //\r
  // Create driver handle used by HII database\r
  //\r
  Status = HiiLibCreateHiiDriverHandle (&DriverHandle);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  PackageList = PreparePackageList (1, &mBdsStringPackGuid, &BdsStrings);\r
  ASSERT (PackageList != NULL);\r
\r
  Status = gHiiDatabase->NewPackageList (\r
                           gHiiDatabase,\r
                           PackageList,\r
                           DriverHandle,\r
                           &gStringPackHandle\r
                           );\r
\r
  FreePool (PackageList);\r
  return Status;\r
}\r
\r
CHAR16 *\r
GetStringById (\r
  IN  EFI_STRING_ID   Id\r
  )\r
/*++\r
\r
Routine Description:\r
  Get string by string id from HII Interface\r
\r
Arguments:\r
  Id       - String ID.\r
\r
Returns:\r
  CHAR16 * - String from ID.\r
  NULL     - If error occurs.\r
\r
--*/\r
{\r
  CHAR16 *String;\r
\r
  String = NULL;\r
  GetStringFromHandle (gStringPackHandle, Id, &String);\r
\r
  return String;\r
}\r