Nt32Pkg/MiscSubClassPlatformDxe/MiscOemStringFunction.c

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