EmulatorPkg/MiscSubClassPlatformDxe/MiscOemStringFunction.c

   1 /** @file
   2   boot information boot time changes.
   3   SMBIOS type 11.
   4
   5   Copyright (c) 2009, Intel Corporation. All rights reserved.<BR>
   6   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 #include "MiscSubClassDriver.h"
  17 /**
  18   This function makes boot time changes to the contents of the
  19   MiscOemString (Type 11).
  20
  21   @param  RecordData                 Pointer to copy of RecordData from the Data Table.
  22
  23   @retval EFI_SUCCESS                All parameters were valid.
  24   @retval EFI_UNSUPPORTED            Unexpected RecordType value.
  25   @retval EFI_INVALID_PARAMETER      Invalid parameter was found.
  26
  27 **/
  28 MISC_SMBIOS_TABLE_FUNCTION(OemString)
  29 {
  30   UINTN                    OemStrLen;
  31   CHAR8                    *OptionalStrStart;
  32   EFI_STATUS               Status;
  33   EFI_STRING               OemStr;
  34   STRING_REF               TokenToGet;
  35   EFI_SMBIOS_HANDLE        SmbiosHandle;
  36   SMBIOS_TABLE_TYPE11      *SmbiosRecord;
  37
  38   //
  39   // First check for invalid parameters.
  40   //
  41   if (RecordData == NULL) {
  42     return EFI_INVALID_PARAMETER;
  43   }
  44
  45   TokenToGet = STRING_TOKEN (STR_MISC_OEM_STRING);
  46   OemStr = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
  47   OemStrLen = StrLen(OemStr);
  48   if (OemStrLen > SMBIOS_STRING_MAX_LENGTH) {
  49     return EFI_UNSUPPORTED;
  50   }
  51
  52   //
  53   // Two zeros following the last string.
  54   //
  55   SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE11) + OemStrLen + 1 + 1);
  56   ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE11) + OemStrLen + 1 + 1);
  57
  58   SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_OEM_STRINGS;
  59   SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE11);
  60   //
  61   // Make handle chosen by smbios protocol.add automatically.
  62   //
  63   SmbiosRecord->Hdr.Handle = 0;
  64   SmbiosRecord->StringCount = 1;
  65   OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
  66   UnicodeStrToAsciiStr(OemStr, OptionalStrStart);
  67
  68   //
  69   // Now we have got the full smbios record, call smbios protocol to add this record.
  70   //
  71   SmbiosHandle = 0;
  72   Status = Smbios-> Add(
  73                       Smbios,
  74                       NULL,
  75                       &SmbiosHandle,
  76                       (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord
  77                       );
  78   FreePool(SmbiosRecord);
  79   return Status;
  80 }