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
GetValueExponentBase2(IN OUT UINTN * Value,OUT UINTN * Exponent)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
Base2ToByteWith64KUnit(IN EFI_EXP_BASE2_DATA * Base2Data)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 **/
MISC_SMBIOS_TABLE_FUNCTION(MiscBiosVendor)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