Nt32Pkg/MiscSubClassPlatformDxe/MiscSystemLanguageStringFunction.c

   1 /** @file
   2
   3 Copyright (c) 2009, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 **/
  13
  14 #include "MiscSubclassDriver.h"
  15 /**
  16   This function makes boot time changes to the contents of the
  17   MiscOemString (Type 11).
  18
  19   @param  RecordData                 Pointer to copy of RecordData from the Data Table.
  20
  21   @retval EFI_SUCCESS                All parameters were valid.
  22   @retval EFI_UNSUPPORTED            Unexpected RecordType value.
  23   @retval EFI_INVALID_PARAMETER      Invalid parameter was found.
  24
  25 **/
  26 MISC_SMBIOS_TABLE_FUNCTION(SystemLanguageString)
  27 {
  28   EFI_STATUS               Status;
  29   EFI_SMBIOS_HANDLE        SmbiosHandle;
  30   SMBIOS_TABLE_TYPE13      *SmbiosRecord;
  31   UINTN                    StrLeng;
  32   CHAR8                    *OptionalStrStart;
  33   EFI_STRING               Str;
  34   STRING_REF               TokenToGet;
  35
  36
  37   //
  38   // First check for invalid parameters.
  39   //
  40   if (RecordData == NULL) {
  41     return EFI_INVALID_PARAMETER;
  42   }
  43
  44   TokenToGet = STRING_TOKEN (STR_MISC_SYSTEM_LANGUAGE_STRING);
  45   Str = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
  46   StrLeng = StrLen(Str);
  47   if (StrLeng > SMBIOS_STRING_MAX_LENGTH) {
  48     return EFI_UNSUPPORTED;
  49   }
  50
  51   //
  52   // Two zeros following the last string.
  53   //
  54   SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE13) + StrLeng + 1 + 1);
  55   ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE13) + StrLeng + 1 + 1);
  56
  57   SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_BIOS_LANGUAGE_INFORMATION;
  58   SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE13);
  59   //
  60   // Make handle chosen by smbios protocol.add automatically.
  61   //
  62   SmbiosRecord->Hdr.Handle    = 0;
  63   SmbiosRecord->InstallableLanguages = 1;
  64   SmbiosRecord->Flags   = 1;
  65   SmbiosRecord->CurrentLanguages = 1;
  66   OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
  67   UnicodeStrToAsciiStr(Str, OptionalStrStart);
  68
  69
  70   //
  71   // Now we have got the full smbios record, call smbios protocol to add this record.
  72   //
  73   SmbiosHandle = 0;
  74   Status = Smbios-> Add(
  75                       Smbios,
  76                       NULL,
  77                       &SmbiosHandle,
  78                       (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord
  79                       );
  80   FreePool(SmbiosRecord);
  81   return Status;
  82 }
  83