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/** @file
BIOS vendor information boot time changes.
Misc. subclass type 2.
SMBIOS type 0.
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 returns the value & exponent to Base2 for a given
Hex value. This is used to calculate the BiosPhysicalDeviceSize.
@param Value The hex value which is to be converted into value-exponent form
@param Exponent The exponent out of the conversion
@retval EFI_SUCCESS All parameters were valid and *Value & *Exponent have been set.
@retval EFI_INVALID_PARAMETER Invalid parameter was found.
**/
EFI_STATUS
GetValueExponentBase2(
IN OUT UINTN *Value,
OUT UINTN *Exponent
)
{
if ((Value == NULL) || (Exponent == NULL)) {
return EFI_INVALID_PARAMETER;
}
while ((*Value % 2) == 0) {
*Value=*Value/2;
(*Exponent)++;
}
return EFI_SUCCESS;
}
/**
Field Filling Function. Transform an EFI_EXP_BASE2_DATA to a byte, with '64k'
as the unit.
@param Base2Data Pointer to Base2_Data
@retval EFI_SUCCESS Transform successfully.
@retval EFI_INVALID_PARAMETER Invalid parameter was found.
**/
UINT16
Base2ToByteWith64KUnit (
IN EFI_EXP_BASE2_DATA *Base2Data
)
{
UINT16 Value;
UINT16 Exponent;
Value = Base2Data->Value;
Exponent = Base2Data->Exponent;
Exponent -= 16;
Value <<= Exponent;
return Value;
}
/**
This function makes boot time changes to the contents of the
MiscBiosVendor (Type 0).
@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(MiscBiosVendor)
{
CHAR8 *OptionalStrStart;
UINTN VendorStrLen;
UINTN VerStrLen;
UINTN DateStrLen;
CHAR16 *Version;
CHAR16 *ReleaseDate;
EFI_STATUS Status;
EFI_STRING Char16String;
STRING_REF TokenToGet;
STRING_REF TokenToUpdate;
SMBIOS_TABLE_TYPE0 *SmbiosRecord;
EFI_SMBIOS_HANDLE SmbiosHandle;
EFI_MISC_BIOS_VENDOR *ForType0InputData;
ForType0InputData = (EFI_MISC_BIOS_VENDOR *)RecordData;
//
// First check for invalid parameters.
//
if (RecordData == NULL) {
return EFI_INVALID_PARAMETER;
}
Version = (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString);
if (StrLen (Version) > 0) {
TokenToUpdate = STRING_TOKEN (STR_MISC_BIOS_VERSION);
HiiSetString (mHiiHandle, TokenToUpdate, Version, NULL);
}
ReleaseDate = (CHAR16 *) PcdGetPtr (PcdFirmwareReleaseDateString);
if (StrLen(ReleaseDate) > 0) {
TokenToUpdate = STRING_TOKEN (STR_MISC_BIOS_RELEASE_DATE);
HiiSetString (mHiiHandle, TokenToUpdate, ReleaseDate, NULL);
}
TokenToGet = STRING_TOKEN (STR_MISC_BIOS_VENDOR);
Char16String = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
VendorStrLen = StrLen(Char16String);
if (VendorStrLen > SMBIOS_STRING_MAX_LENGTH) {
return EFI_UNSUPPORTED;
}
TokenToGet = STRING_TOKEN (STR_MISC_BIOS_VERSION);
Version = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
VerStrLen = StrLen(Version);
if (VerStrLen > SMBIOS_STRING_MAX_LENGTH) {
return EFI_UNSUPPORTED;
}
TokenToGet = STRING_TOKEN (STR_MISC_BIOS_RELEASE_DATE);
ReleaseDate = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
DateStrLen = StrLen(ReleaseDate);
if (DateStrLen > SMBIOS_STRING_MAX_LENGTH) {
return EFI_UNSUPPORTED;
}
//
// Two zeros following the last string.
//
SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE0) + VendorStrLen + 1 + VerStrLen + 1 + DateStrLen + 1 + 1);
ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE0) + VendorStrLen + 1 + VerStrLen + 1 + DateStrLen + 1 + 1);
SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_BIOS_INFORMATION;
SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE0);
//
// Make handle chosen by smbios protocol.add automatically.
//
SmbiosRecord->Hdr.Handle = 0;
//
// Vendor will be the 1st optional string following the formatted structure.
//
SmbiosRecord->Vendor = 1;
//
// Version will be the 2nd optional string following the formatted structure.
//
SmbiosRecord->BiosVersion = 2;
SmbiosRecord->BiosSegment = (UINT16)ForType0InputData->BiosStartingAddress;
//
// ReleaseDate will be the 3rd optional string following the formatted structure.
//
SmbiosRecord->BiosReleaseDate = 3;
//
// Nt32 has no PCD value to indicate BIOS Size, just fill 0 for simply.
//
SmbiosRecord->BiosSize = 0;
SmbiosRecord->BiosCharacteristics = *(MISC_BIOS_CHARACTERISTICS*)(&ForType0InputData->BiosCharacteristics1);
//
// CharacterExtensionBytes also store in ForType0InputData->BiosCharacteristics1 later two bytes to save size.
//
SmbiosRecord->BIOSCharacteristicsExtensionBytes[0] = *((UINT8 *) &ForType0InputData->BiosCharacteristics1 + 4);
SmbiosRecord->BIOSCharacteristicsExtensionBytes[1] = *((UINT8 *) &ForType0InputData->BiosCharacteristics1 + 5);
SmbiosRecord->SystemBiosMajorRelease = ForType0InputData->BiosMajorRelease;
SmbiosRecord->SystemBiosMinorRelease = ForType0InputData->BiosMinorRelease;
SmbiosRecord->EmbeddedControllerFirmwareMajorRelease = ForType0InputData->BiosEmbeddedFirmwareMajorRelease;
SmbiosRecord->EmbeddedControllerFirmwareMinorRelease = ForType0InputData->BiosEmbeddedFirmwareMinorRelease;
OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
UnicodeStrToAsciiStr(Char16String, OptionalStrStart);
UnicodeStrToAsciiStr(Version, OptionalStrStart + VendorStrLen + 1);
UnicodeStrToAsciiStr(ReleaseDate, OptionalStrStart + VendorStrLen + 1 + VerStrLen + 1);
//
// 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;
}
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