/** @file | |
BIOS system option string boot time changes. | |
SMBIOS type 12. | |
Copyright (c) 2009, Intel Corporation | |
All rights reserved. This program and the accompanying materials | |
are licensed and made available under the terms and conditions of the BSD License | |
which accompanies this distribution. The full text of the license may be found at | |
http://opensource.org/licenses/bsd-license.php | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#include "MiscSubClassDriver.h" | |
/** | |
This function makes boot time changes to the contents of the | |
MiscSystemOptionString (Type 12). | |
@param RecordData Pointer to copy of RecordData from the Data Table. | |
@retval EFI_SUCCESS All parameters were valid. | |
@retval EFI_UNSUPPORTED Unexpected RecordType value. | |
@retval EFI_INVALID_PARAMETER Invalid parameter was found. | |
**/ | |
MISC_SMBIOS_TABLE_FUNCTION(SystemOptionString) | |
{ | |
CHAR8 *OptionalStrStart; | |
UINTN OptStrLen; | |
EFI_STRING OptionString; | |
EFI_STATUS Status; | |
STRING_REF TokenToGet; | |
EFI_SMBIOS_HANDLE SmbiosHandle; | |
SMBIOS_TABLE_TYPE12 *SmbiosRecord; | |
// | |
// First check for invalid parameters. | |
// | |
if (RecordData == NULL) { | |
return EFI_INVALID_PARAMETER; | |
} | |
TokenToGet = STRING_TOKEN (STR_MISC_SYSTEM_OPTION_STRING); | |
OptionString = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL); | |
OptStrLen = StrLen(OptionString); | |
if (OptStrLen > SMBIOS_STRING_MAX_LENGTH) { | |
return EFI_UNSUPPORTED; | |
} | |
// | |
// Two zeros following the last string. | |
// | |
SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE12) + OptStrLen + 1 + 1); | |
ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE12) + OptStrLen + 1 + 1); | |
SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS; | |
SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE12); | |
// | |
// Make handle chosen by smbios protocol.add automatically. | |
// | |
SmbiosRecord->Hdr.Handle = 0; | |
SmbiosRecord->StringCount = 1; | |
OptionalStrStart = (CHAR8*) (SmbiosRecord + 1); | |
UnicodeStrToAsciiStr(OptionString, OptionalStrStart); | |
// | |
// Now we have got the full smbios record, call smbios protocol to add this record. | |
// | |
SmbiosHandle = 0; | |
Status = Smbios-> Add( | |
Smbios, | |
NULL, | |
&SmbiosHandle, | |
(EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord | |
); | |
FreePool(SmbiosRecord); | |
return Status; | |
} |