Nt32Pkg/MiscSubClassPlatformDxe/MiscBiosVendorFunction.c

   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 SPDX-License-Identifier: BSD-2-Clause-Patent
   8
   9 **/
  10
  11 #include "MiscSubclassDriver.h"
  12
  13 /**
  14   This function returns the value & exponent to Base2 for a given
  15   Hex value. This is used to calculate the BiosPhysicalDeviceSize.
  16
  17   @param Value                      The hex value which is to be converted into value-exponent form
  18   @param Exponent                   The exponent out of the conversion
  19
  20   @retval EFI_SUCCESS               All parameters were valid and *Value & *Exponent have been set.
  21   @retval EFI_INVALID_PARAMETER     Invalid parameter was found.
  22
  23 **/
  24 EFI_STATUS
  25 GetValueExponentBase2(
  26   IN OUT UINTN        *Value,
  27   OUT    UINTN        *Exponent
  28   )
  29 {
  30   if ((Value == NULL) || (Exponent == NULL)) {
  31     return EFI_INVALID_PARAMETER;
  32   }
  33
  34   while ((*Value % 2) == 0) {
  35     *Value=*Value/2;
  36     (*Exponent)++;
  37   }
  38
  39   return EFI_SUCCESS;
  40 }
  41
  42 /**
  43   Field Filling Function. Transform an EFI_EXP_BASE2_DATA to a byte, with '64k'
  44   as the unit.
  45
  46   @param  Base2Data              Pointer to Base2_Data
  47
  48   @retval EFI_SUCCESS            Transform successfully.
  49   @retval EFI_INVALID_PARAMETER  Invalid parameter was found.
  50
  51 **/
  52 UINT16
  53 Base2ToByteWith64KUnit (
  54   IN      EFI_EXP_BASE2_DATA  *Base2Data
  55   )
  56 {
  57   UINT16              Value;
  58   UINT16              Exponent;
  59
  60   Value     = Base2Data->Value;
  61   Exponent  = Base2Data->Exponent;
  62   Exponent -= 16;
  63   Value <<= Exponent;
  64
  65   return Value;
  66 }
  67
  68
  69 /**
  70   This function makes boot time changes to the contents of the
  71   MiscBiosVendor (Type 0).
  72
  73   @param  RecordData                 Pointer to copy of RecordData from the Data Table.
  74
  75   @retval EFI_SUCCESS                All parameters were valid.
  76   @retval EFI_UNSUPPORTED            Unexpected RecordType value.
  77   @retval EFI_INVALID_PARAMETER      Invalid parameter was found.
  78
  79 **/
  80 MISC_SMBIOS_TABLE_FUNCTION(MiscBiosVendor)
  81 {
  82   CHAR8                 *OptionalStrStart;
  83   UINTN                 VendorStrLen;
  84   UINTN                 VerStrLen;
  85   UINTN                 DateStrLen;
  86   CHAR16                *Version;
  87   CHAR16                *ReleaseDate;
  88   EFI_STATUS            Status;
  89   EFI_STRING            Char16String;
  90   STRING_REF            TokenToGet;
  91   STRING_REF            TokenToUpdate;
  92   SMBIOS_TABLE_TYPE0    *SmbiosRecord;
  93   EFI_SMBIOS_HANDLE     SmbiosHandle;
  94   EFI_MISC_BIOS_VENDOR *ForType0InputData;
  95
  96   ForType0InputData        = (EFI_MISC_BIOS_VENDOR *)RecordData;
  97
  98   //
  99   // First check for invalid parameters.
 100   //
 101   if (RecordData == NULL) {
 102     return EFI_INVALID_PARAMETER;
 103   }
 104
 105   Version = (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString);
 106   if (StrLen (Version) > 0) {
 107     TokenToUpdate = STRING_TOKEN (STR_MISC_BIOS_VERSION);
 108     HiiSetString (mHiiHandle, TokenToUpdate, Version, NULL);
 109   }
 110
 111   ReleaseDate = (CHAR16 *) PcdGetPtr (PcdFirmwareReleaseDateString);
 112   if (StrLen(ReleaseDate) > 0) {
 113     TokenToUpdate = STRING_TOKEN (STR_MISC_BIOS_RELEASE_DATE);
 114     HiiSetString (mHiiHandle, TokenToUpdate, ReleaseDate, NULL);
 115   }
 116
 117   TokenToGet = STRING_TOKEN (STR_MISC_BIOS_VENDOR);
 118   Char16String = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
 119   VendorStrLen = StrLen(Char16String);
 120   if (VendorStrLen > SMBIOS_STRING_MAX_LENGTH) {
 121     return EFI_UNSUPPORTED;
 122   }
 123
 124   TokenToGet = STRING_TOKEN (STR_MISC_BIOS_VERSION);
 125   Version = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
 126   VerStrLen = StrLen(Version);
 127   if (VerStrLen > SMBIOS_STRING_MAX_LENGTH) {
 128     return EFI_UNSUPPORTED;
 129   }
 130
 131   TokenToGet = STRING_TOKEN (STR_MISC_BIOS_RELEASE_DATE);
 132   ReleaseDate = HiiGetPackageString(&gEfiCallerIdGuid, TokenToGet, NULL);
 133   DateStrLen = StrLen(ReleaseDate);
 134   if (DateStrLen > SMBIOS_STRING_MAX_LENGTH) {
 135     return EFI_UNSUPPORTED;
 136   }
 137
 138   //
 139   // Two zeros following the last string.
 140   //
 141   SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE0) + VendorStrLen + 1 + VerStrLen + 1 + DateStrLen + 1 + 1);
 142   ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE0) + VendorStrLen + 1 + VerStrLen + 1 + DateStrLen + 1 + 1);
 143
 144   SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_BIOS_INFORMATION;
 145   SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE0);
 146   //
 147   // Make handle chosen by smbios protocol.add automatically.
 148   //
 149   SmbiosRecord->Hdr.Handle = 0;
 150   //
 151   // Vendor will be the 1st optional string following the formatted structure.
 152   //
 153   SmbiosRecord->Vendor = 1;
 154   //
 155   // Version will be the 2nd optional string following the formatted structure.
 156   //
 157   SmbiosRecord->BiosVersion = 2;
 158   SmbiosRecord->BiosSegment = (UINT16)ForType0InputData->BiosStartingAddress;
 159   //
 160   // ReleaseDate will be the 3rd optional string following the formatted structure.
 161   //
 162   SmbiosRecord->BiosReleaseDate = 3;
 163   //
 164   // Nt32 has no PCD value to indicate BIOS Size, just fill 0 for simply.
 165   //
 166   SmbiosRecord->BiosSize = 0;
 167   SmbiosRecord->BiosCharacteristics = *(MISC_BIOS_CHARACTERISTICS*)(&ForType0InputData->BiosCharacteristics1);
 168   //
 169   // CharacterExtensionBytes also store in ForType0InputData->BiosCharacteristics1 later two bytes to save size.
 170   //
 171   SmbiosRecord->BIOSCharacteristicsExtensionBytes[0] = *((UINT8 *) &ForType0InputData->BiosCharacteristics1 + 4);
 172   SmbiosRecord->BIOSCharacteristicsExtensionBytes[1] = *((UINT8 *) &ForType0InputData->BiosCharacteristics1 + 5);
 173
 174   SmbiosRecord->SystemBiosMajorRelease = ForType0InputData->BiosMajorRelease;
 175   SmbiosRecord->SystemBiosMinorRelease = ForType0InputData->BiosMinorRelease;
 176   SmbiosRecord->EmbeddedControllerFirmwareMajorRelease = ForType0InputData->BiosEmbeddedFirmwareMajorRelease;
 177   SmbiosRecord->EmbeddedControllerFirmwareMinorRelease = ForType0InputData->BiosEmbeddedFirmwareMinorRelease;
 178
 179   OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
 180   UnicodeStrToAsciiStr(Char16String, OptionalStrStart);
 181   UnicodeStrToAsciiStr(Version, OptionalStrStart + VendorStrLen + 1);
 182   UnicodeStrToAsciiStr(ReleaseDate, OptionalStrStart + VendorStrLen + 1 + VerStrLen + 1);
 183   //
 184   // Now we have got the full smbios record, call smbios protocol to add this record.
 185   //
 186   Status = AddSmbiosRecord (Smbios, &SmbiosHandle, (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord);
 187
 188   FreePool(SmbiosRecord);
 189   return Status;
 190 }