/** @file | |
BIOS vendor information boot time changes. | |
Misc. subclass type 2. | |
SMBIOS type 0. | |
Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR> | |
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. | |
// | |
Status = AddSmbiosRecord (Smbios, &SmbiosHandle, (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord); | |
FreePool(SmbiosRecord); | |
return Status; | |
} |