QuarkPlatformPkg/Platform/Dxe/SmbiosMiscDxe/MiscSystemOptionStringFunction.c

   1 /** @file
   2 BIOS system option string boot time changes.
   3 SMBIOS type 12.
   4
   5 Copyright (c) 2013-2016 Intel Corporation.
   6
   7 SPDX-License-Identifier: BSD-2-Clause-Patent
   8
   9
  10 **/
  11
  12
  13 #include "CommonHeader.h"
  14 #include "SmbiosMisc.h"
  15
  16
  17 /**
  18   This function makes boot time changes to the contents of the
  19   MiscSystemOptionString (Type 12).
  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(SystemOptionString)
  29 {
  30   CHAR8                             *OptionalStrStart;
  31   UINTN                             OptStrLen;
  32   EFI_STRING                        OptionString;
  33   EFI_STATUS                        Status;
  34   STRING_REF                        TokenToGet;
  35   EFI_SMBIOS_HANDLE                 SmbiosHandle;
  36   SMBIOS_TABLE_TYPE12               *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_SYSTEM_OPTION_STRING);
  46   OptionString = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
  47   OptStrLen = StrLen(OptionString);
  48   if (OptStrLen > 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_TYPE12) + OptStrLen + 1 + 1);
  56   ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE12) + OptStrLen + 1 + 1);
  57
  58   SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS;
  59   SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE12);
  60   //
  61   // Make handle chosen by smbios protocol.add automatically.
  62   //
  63   SmbiosRecord->Hdr.Handle = 0;
  64
  65   SmbiosRecord->StringCount = 1;
  66   OptionalStrStart = (CHAR8*) (SmbiosRecord + 1);
  67   UnicodeStrToAsciiStr(OptionString, OptionalStrStart);
  68   //
  69   // Now we have got the full smbios record, call smbios protocol to add this record.
  70   //
  71   SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
  72   Status = Smbios-> Add(
  73                       Smbios,
  74                       NULL,
  75                       &SmbiosHandle,
  76                       (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord
  77                       );
  78
  79   FreePool(SmbiosRecord);
  80   return Status;
  81 }