Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscOemStringFunction.c

   1 /*++
   2
   3 Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
   4
   5   This program and the accompanying materials are licensed and made available under
   6   the terms and conditions of the BSD License that accompanies this distribution.
   7   The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php.
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13
  14 Module Name:
  15
  16   MiscOemStringFunction.c
  17
  18 Abstract:
  19
  20   boot information boot time changes.
  21   SMBIOS type 11.
  22
  23 --*/
  24
  25
  26 #include "CommonHeader.h"
  27
  28 #include "MiscSubclassDriver.h"
  29
  30 /**
  31   This function makes boot time changes to the contents of the
  32   MiscOemString (Type 11).
  33
  34   @param  RecordData                 Pointer to copy of RecordData from the Data Table.
  35
  36   @retval EFI_SUCCESS                All parameters were valid.
  37   @retval EFI_UNSUPPORTED            Unexpected RecordType value.
  38   @retval EFI_INVALID_PARAMETER      Invalid parameter was found.
  39
  40 **/
  41 MISC_SMBIOS_TABLE_FUNCTION(OemString)
  42 {
  43   UINTN                    OemStrLen;
  44   CHAR8                    *OptionalStrStart;
  45   EFI_STATUS               Status;
  46   EFI_STRING               OemStr;
  47   STRING_REF               TokenToGet;
  48   EFI_SMBIOS_HANDLE        SmbiosHandle;
  49   SMBIOS_TABLE_TYPE11      *SmbiosRecord;
  50
  51   //
  52   // First check for invalid parameters.
  53   //
  54   if (RecordData == NULL) {
  55     return EFI_INVALID_PARAMETER;
  56   }
  57
  58   TokenToGet = STRING_TOKEN (STR_MISC_OEM_EN_US);
  59   OemStr = SmbiosMiscGetString (TokenToGet);
  60   OemStrLen = StrLen(OemStr);
  61   if (OemStrLen > SMBIOS_STRING_MAX_LENGTH) {
  62     return EFI_UNSUPPORTED;
  63   }
  64
  65   //
  66   // Two zeros following the last string.
  67   //
  68   SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE11) + OemStrLen + 1 + 1);
  69   ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE11) + OemStrLen + 1 + 1);
  70
  71   SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_OEM_STRINGS;
  72   SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE11);
  73
  74   //
  75   // Make handle chosen by smbios protocol.add automatically.
  76   //
  77   SmbiosRecord->Hdr.Handle = 0;
  78   SmbiosRecord->StringCount = 1;
  79   OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
  80   UnicodeStrToAsciiStr(OemStr, OptionalStrStart);
  81
  82   //
  83   // Now we have got the full smbios record, call smbios protocol to add this record.
  84   //
  85   SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
  86   Status = Smbios-> Add(
  87                       Smbios,
  88                       NULL,
  89                       &SmbiosHandle,
  90                       (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord
  91                       );
  92   FreePool(SmbiosRecord);
  93   return Status;
  94 }