1 /** @file 2 BIOS vendor information boot time changes. 3 Misc. subclass type 2. 4 SMBIOS type 0. 5 6 Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR> 7 This program and the accompanying materials 8 are licensed and made available under the terms and conditions of the BSD License 9 which accompanies this distribution. The full text of the license may be found at 10 http://opensource.org/licenses/bsd-license.php 11 12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 14 15 **/ 16 17 #include "MiscSubclassDriver.h" 18 19 /** 20 This function returns the value & exponent to Base2 for a given 21 Hex value. This is used to calculate the BiosPhysicalDeviceSize. 22 23 @param Value The hex value which is to be converted into value-exponent form 24 @param Exponent The exponent out of the conversion 25 26 @retval EFI_SUCCESS All parameters were valid and *Value & *Exponent have been set. 27 @retval EFI_INVALID_PARAMETER Invalid parameter was found. 28 29 **/ 30 EFI_STATUS 31 GetValueExponentBase2( 32 IN OUT UINTN *Value, 33 OUT UINTN *Exponent 34 ) 35 { 36 if ((Value == NULL) || (Exponent == NULL)) { 37 return EFI_INVALID_PARAMETER; 38 } 39 40 while ((*Value % 2) == 0) { 41 *Value=*Value/2; 42 (*Exponent)++; 43 } 44 45 return EFI_SUCCESS; 46 } 47 48 /** 49 Field Filling Function. Transform an EFI_EXP_BASE2_DATA to a byte, with '64k' 50 as the unit. 51 52 @param Base2Data Pointer to Base2_Data 53 54 @retval EFI_SUCCESS Transform successfully. 55 @retval EFI_INVALID_PARAMETER Invalid parameter was found. 56 57 **/ 58 UINT16 59 Base2ToByteWith64KUnit ( 60 IN EFI_EXP_BASE2_DATA *Base2Data 61 ) 62 { 63 UINT16 Value; 64 UINT16 Exponent; 65 66 Value = Base2Data->Value; 67 Exponent = Base2Data->Exponent; 68 Exponent -= 16; 69 Value <<= Exponent; 70 71 return Value; 72 } 73 74 75 /** 76 This function makes boot time changes to the contents of the 77 MiscBiosVendor (Type 0). 78 79 @param RecordData Pointer to copy of RecordData from the Data Table. 80 81 @retval EFI_SUCCESS All parameters were valid. 82 @retval EFI_UNSUPPORTED Unexpected RecordType value. 83 @retval EFI_INVALID_PARAMETER Invalid parameter was found. 84 85 **/ 86 MISC_SMBIOS_TABLE_FUNCTION(MiscBiosVendor) 87 { 88 CHAR8 *OptionalStrStart; 89 UINTN VendorStrLen; 90 UINTN VerStrLen; 91 UINTN DateStrLen; 92 CHAR16 *Version; 93 CHAR16 *ReleaseDate; 94 EFI_STATUS Status; 95 EFI_STRING Char16String; 96 STRING_REF TokenToGet; 97 STRING_REF TokenToUpdate; 98 SMBIOS_TABLE_TYPE0 *SmbiosRecord; 99 EFI_SMBIOS_HANDLE SmbiosHandle; 100 EFI_MISC_BIOS_VENDOR *ForType0InputData; 101 102 ForType0InputData = (EFI_MISC_BIOS_VENDOR *)RecordData; 103 104 // 105 // First check for invalid parameters. 106 // 107 if (RecordData == NULL) { 108 return EFI_INVALID_PARAMETER; 109 } 110 111 Version = (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString); 112 if (StrLen (Version) > 0) { 113 TokenToUpdate = STRING_TOKEN (STR_MISC_BIOS_VERSION); 114 HiiSetString (mHiiHandle, TokenToUpdate, Version, NULL); 115 } 116 117 ReleaseDate = (CHAR16 *) PcdGetPtr (PcdFirmwareReleaseDateString); 118 if (StrLen(ReleaseDate) > 0) { 119 TokenToUpdate = STRING_TOKEN (STR_MISC_BIOS_RELEASE_DATE); 120 HiiSetString (mHiiHandle, TokenToUpdate, ReleaseDate, NULL); 121 } 122 123 TokenToGet = STRING_TOKEN (STR_MISC_BIOS_VENDOR); 124 Char16String = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL); 125 VendorStrLen = StrLen(Char16String); 126 if (VendorStrLen > SMBIOS_STRING_MAX_LENGTH) { 127 return EFI_UNSUPPORTED; 128 } 129 130 TokenToGet = STRING_TOKEN (STR_MISC_BIOS_VERSION); 131 Version = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL); 132 VerStrLen = StrLen(Version); 133 if (VerStrLen > SMBIOS_STRING_MAX_LENGTH) { 134 return EFI_UNSUPPORTED; 135 } 136 137 TokenToGet = STRING_TOKEN (STR_MISC_BIOS_RELEASE_DATE); 138 ReleaseDate = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL); 139 DateStrLen = StrLen(ReleaseDate); 140 if (DateStrLen > SMBIOS_STRING_MAX_LENGTH) { 141 return EFI_UNSUPPORTED; 142 } 143 144 // 145 // Two zeros following the last string. 146 // 147 SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE0) + VendorStrLen + 1 + VerStrLen + 1 + DateStrLen + 1 + 1); 148 ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE0) + VendorStrLen + 1 + VerStrLen + 1 + DateStrLen + 1 + 1); 149 150 SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_BIOS_INFORMATION; 151 SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE0); 152 // 153 // Make handle chosen by smbios protocol.add automatically. 154 // 155 SmbiosRecord->Hdr.Handle = 0; 156 // 157 // Vendor will be the 1st optional string following the formatted structure. 158 // 159 SmbiosRecord->Vendor = 1; 160 // 161 // Version will be the 2nd optional string following the formatted structure. 162 // 163 SmbiosRecord->BiosVersion = 2; 164 SmbiosRecord->BiosSegment = (UINT16)ForType0InputData->BiosStartingAddress; 165 // 166 // ReleaseDate will be the 3rd optional string following the formatted structure. 167 // 168 SmbiosRecord->BiosReleaseDate = 3; 169 // 170 // Nt32 has no PCD value to indicate BIOS Size, just fill 0 for simply. 171 // 172 SmbiosRecord->BiosSize = 0; 173 SmbiosRecord->BiosCharacteristics = *(MISC_BIOS_CHARACTERISTICS*)(&ForType0InputData->BiosCharacteristics1); 174 // 175 // CharacterExtensionBytes also store in ForType0InputData->BiosCharacteristics1 later two bytes to save size. 176 // 177 SmbiosRecord->BIOSCharacteristicsExtensionBytes[0] = *((UINT8 *) &ForType0InputData->BiosCharacteristics1 + 4); 178 SmbiosRecord->BIOSCharacteristicsExtensionBytes[1] = *((UINT8 *) &ForType0InputData->BiosCharacteristics1 + 5); 179 180 SmbiosRecord->SystemBiosMajorRelease = ForType0InputData->BiosMajorRelease; 181 SmbiosRecord->SystemBiosMinorRelease = ForType0InputData->BiosMinorRelease; 182 SmbiosRecord->EmbeddedControllerFirmwareMajorRelease = ForType0InputData->BiosEmbeddedFirmwareMajorRelease; 183 SmbiosRecord->EmbeddedControllerFirmwareMinorRelease = ForType0InputData->BiosEmbeddedFirmwareMinorRelease; 184 185 OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1); 186 UnicodeStrToAsciiStr(Char16String, OptionalStrStart); 187 UnicodeStrToAsciiStr(Version, OptionalStrStart + VendorStrLen + 1); 188 UnicodeStrToAsciiStr(ReleaseDate, OptionalStrStart + VendorStrLen + 1 + VerStrLen + 1); 189 // 190 // Now we have got the full smbios record, call smbios protocol to add this record. 191 // 192 Status = AddSmbiosRecord (Smbios, &SmbiosHandle, (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord); 193 194 FreePool(SmbiosRecord); 195 return Status; 196 } 197
