Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscOemStringFunction.c

   1 /*++
   2
   3 Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
   4
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7
   8
   9 Module Name:
  10
  11   MiscOemStringFunction.c
  12
  13 Abstract:
  14
  15   boot information boot time changes.
  16   SMBIOS type 11.
  17
  18 --*/
  19
  20
  21 #include "CommonHeader.h"
  22
  23 #include "MiscSubclassDriver.h"
  24
  25 /**
  26   This function makes boot time changes to the contents of the
  27   MiscOemString (Type 11).
  28
  29   @param  RecordData                 Pointer to copy of RecordData from the Data Table.
  30
  31   @retval EFI_SUCCESS                All parameters were valid.
  32   @retval EFI_UNSUPPORTED            Unexpected RecordType value.
  33   @retval EFI_INVALID_PARAMETER      Invalid parameter was found.
  34
  35 **/
  36 MISC_SMBIOS_TABLE_FUNCTION(OemString)
  37 {
  38   UINTN                    OemStrLen;
  39   CHAR8                    *OptionalStrStart;
  40   EFI_STATUS               Status;
  41   EFI_STRING               OemStr;
  42   STRING_REF               TokenToGet;
  43   EFI_SMBIOS_HANDLE        SmbiosHandle;
  44   SMBIOS_TABLE_TYPE11      *SmbiosRecord;
  45
  46   //
  47   // First check for invalid parameters.
  48   //
  49   if (RecordData == NULL) {
  50     return EFI_INVALID_PARAMETER;
  51   }
  52
  53   TokenToGet = STRING_TOKEN (STR_MISC_OEM_EN_US);
  54   OemStr = SmbiosMiscGetString (TokenToGet);
  55   OemStrLen = StrLen(OemStr);
  56   if (OemStrLen > SMBIOS_STRING_MAX_LENGTH) {
  57     return EFI_UNSUPPORTED;
  58   }
  59
  60   //
  61   // Two zeros following the last string.
  62   //
  63   SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE11) + OemStrLen + 1 + 1);
  64   ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE11) + OemStrLen + 1 + 1);
  65
  66   SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_OEM_STRINGS;
  67   SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE11);
  68
  69   //
  70   // Make handle chosen by smbios protocol.add automatically.
  71   //
  72   SmbiosRecord->Hdr.Handle = 0;
  73   SmbiosRecord->StringCount = 1;
  74   OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
  75   UnicodeStrToAsciiStr(OemStr, OptionalStrStart);
  76
  77   //
  78   // Now we have got the full smbios record, call smbios protocol to add this record.
  79   //
  80   SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
  81   Status = Smbios-> Add(
  82                       Smbios,
  83                       NULL,
  84                       &SmbiosHandle,
  85                       (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord
  86                       );
  87   FreePool(SmbiosRecord);
  88   return Status;
  89 }