mirror of https://github.com/acidanthera/audk.git
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/** @file
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BIOS system option string boot time changes.
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SMBIOS type 12.
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Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "MiscSubClassDriver.h"
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/**
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This function makes boot time changes to the contents of the
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MiscSystemOptionString (Type 12).
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@param RecordData Pointer to copy of RecordData from the Data Table.
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@retval EFI_SUCCESS All parameters were valid.
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@retval EFI_UNSUPPORTED Unexpected RecordType value.
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@retval EFI_INVALID_PARAMETER Invalid parameter was found.
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**/
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MISC_SMBIOS_TABLE_FUNCTION(SystemOptionString)
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{
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CHAR8 *OptionalStrStart;
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UINTN OptStrLen;
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EFI_STRING OptionString;
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EFI_STATUS Status;
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STRING_REF TokenToGet;
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EFI_SMBIOS_HANDLE SmbiosHandle;
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SMBIOS_TABLE_TYPE12 *SmbiosRecord;
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//
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// First check for invalid parameters.
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//
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if (RecordData == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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TokenToGet = STRING_TOKEN (STR_MISC_SYSTEM_OPTION_STRING);
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OptionString = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
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OptStrLen = StrLen(OptionString);
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if (OptStrLen > SMBIOS_STRING_MAX_LENGTH) {
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return EFI_UNSUPPORTED;
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}
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//
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// Two zeros following the last string.
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//
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SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE12) + OptStrLen + 1 + 1);
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ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE12) + OptStrLen + 1 + 1);
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SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS;
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SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE12);
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//
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// Make handle chosen by smbios protocol.add automatically.
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//
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SmbiosRecord->Hdr.Handle = 0;
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SmbiosRecord->StringCount = 1;
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OptionalStrStart = (CHAR8*) (SmbiosRecord + 1);
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UnicodeStrToAsciiStr(OptionString, OptionalStrStart);
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//
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// Now we have got the full smbios record, call smbios protocol to add this record.
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//
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Status = AddSmbiosRecord (Smbios, &SmbiosHandle, (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord);
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FreePool(SmbiosRecord);
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return Status;
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}
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