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/**
SMBIOS type 0.
Copyright (c) 1999 - 2016 Intel Corporation. All rights reserved.
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
**/
#include "SmbiosBasic.h"
/**
This function makes boot time changes to the contents of the
BiosVendor (Type 0).
@retval EFI_SUCCESS All parameters were valid.
@retval EFI_UNSUPPORTED Unexpected RecordType value.
@retval EFI_INVALID_PARAMETER Invalid parameter was found.
**/
EFI_STATUS
EFIAPI
BiosVendorFunction(
IN EFI_SMBIOS_PROTOCOL *Smbios
)
{
EFI_STATUS Status;
CHAR8 *VendorStr;
UINTN VendorStrLen;
CHAR8 *VersionStr;
UINTN VerStrLen;
CHAR8 *DateStr;
UINTN DateStrLen;
SMBIOS_TABLE_TYPE0 *SmbiosRecord;
SMBIOS_TABLE_TYPE0 *PcdSmbiosRecord;
EFI_SMBIOS_HANDLE SmbiosHandle;
UINTN StringOffset;
PcdSmbiosRecord = PcdGetPtr (PcdSmbiosType0BiosInformation);
VendorStr = PcdGetPtr (PcdSmbiosType0StringVendor);
VendorStrLen = AsciiStrLen (VendorStr);
ASSERT (VendorStrLen <= SMBIOS_STRING_MAX_LENGTH);
VersionStr = PcdGetPtr (PcdSmbiosType0StringBiosVersion);
VerStrLen = AsciiStrLen (VersionStr);
ASSERT (VerStrLen <= SMBIOS_STRING_MAX_LENGTH);
DateStr = PcdGetPtr (PcdSmbiosType0StringBiosReleaseDate);
DateStrLen = AsciiStrLen (DateStr);
ASSERT (DateStrLen <= SMBIOS_STRING_MAX_LENGTH);
//
// Two zeros following the last string.
//
SmbiosRecord = AllocateZeroPool (sizeof (SMBIOS_TABLE_TYPE0) + VendorStrLen + 1 + VerStrLen + 1 + DateStrLen + 1 + 1);
if (SmbiosRecord == NULL) {
ASSERT_EFI_ERROR (EFI_OUT_OF_RESOURCES);
return EFI_OUT_OF_RESOURCES;
}
CopyMem (SmbiosRecord, PcdSmbiosRecord, sizeof(SMBIOS_TABLE_TYPE0));
SmbiosRecord->Hdr.Type = SMBIOS_TYPE_BIOS_INFORMATION;
SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE0);
SmbiosRecord->Hdr.Handle = 0;
StringOffset = SmbiosRecord->Hdr.Length;
CopyMem ((UINT8 *)SmbiosRecord + StringOffset, VendorStr, VendorStrLen);
StringOffset += VendorStrLen + 1;
CopyMem ((UINT8 *)SmbiosRecord + StringOffset, VersionStr, VerStrLen);
StringOffset += VerStrLen + 1;
CopyMem ((UINT8 *)SmbiosRecord + StringOffset, DateStr, DateStrLen);
//
// Now we have got the full smbios record, call smbios protocol to add this record.
//
Status = AddSmbiosRecord (Smbios, &SmbiosHandle, (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord);
FreePool (SmbiosRecord);
return Status;
}
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