1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/*++
Copyright (c) 2009, Intel Corporation. All rights reserved. <BR>
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
Module Name:
MiscBiosVendorFunction.c
Abstract:
BIOS vendor information boot time changes.
Misc. subclass type 2.
SMBIOS type 0.
--*/
#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;
}
|
