3 Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials are licensed and made available under
6 the terms and conditions of the BSD License that accompanies this distribution.
7 The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php.
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
17 MiscOnboardDeviceFunction.c
21 Create the device path for the Onboard device.
22 The Onboard device information is Misc. subclass type 8 and SMBIOS type 10.
28 #include "CommonHeader.h"
30 #include "MiscSubclassDriver.h"
35 This is a macro defined function, in fact, the function is
36 MiscOnboardDeviceFunction (RecordType, RecordLen, RecordData, LogRecordData)
37 This function makes boot time changes to the contents of the
38 MiscOnboardDevice structure.
40 @param MiscOnboardDevice The string which is used to create the function
41 The Arguments in fact:
42 @param RecordType Type of record to be processed from the Data
43 Table. mMiscSubclassDataTable[].RecordType
44 @param RecordLen Size of static RecordData from the Data Table.
45 mMiscSubclassDataTable[].RecordLen
46 @param RecordData Pointer to RecordData, which will be written to
48 @param LogRecordData TRUE to log RecordData to Data Hub. FALSE when
49 there is no more data to log.
51 @retval EFI_SUCCESS *RecordData and *LogRecordData have been set.
52 @retval EFI_UNSUPPORTED Unexpected RecordType value.
53 @retval EFI_INVALID_PARAMETER One of the following parameter conditions was
54 true: RecordLen was zero. RecordData was NULL.
55 LogRecordData was NULL.
58 MISC_SMBIOS_TABLE_FUNCTION (
62 CHAR8
*OptionalStrStart
;
64 UINTN DescriptionStrLen
;
65 EFI_STRING DeviceDescription
;
66 STRING_REF TokenToGet
;
68 EFI_SMBIOS_HANDLE SmbiosHandle
;
69 SMBIOS_TABLE_TYPE10
*SmbiosRecord
;
70 EFI_MISC_ONBOARD_DEVICE
*ForType10InputData
;
72 ForType10InputData
= (EFI_MISC_ONBOARD_DEVICE
*)RecordData
;
75 // First check for invalid parameters.
77 if (RecordData
== NULL
) {
78 return EFI_INVALID_PARAMETER
;
82 switch (ForType10InputData
->OnBoardDeviceDescription
) {
83 case STR_MISC_ONBOARD_DEVICE_VIDEO
:
84 TokenToGet
= STRING_TOKEN (STR_MISC_ONBOARD_DEVICE_VIDEO
);
86 case STR_MISC_ONBOARD_DEVICE_AUDIO
:
87 TokenToGet
= STRING_TOKEN (STR_MISC_ONBOARD_DEVICE_AUDIO
);
93 DeviceDescription
= SmbiosMiscGetString (TokenToGet
);
94 DescriptionStrLen
= StrLen(DeviceDescription
);
95 if (DescriptionStrLen
> SMBIOS_STRING_MAX_LENGTH
) {
96 return EFI_UNSUPPORTED
;
100 // Two zeros following the last string.
102 SmbiosRecord
= AllocatePool(sizeof (SMBIOS_TABLE_TYPE10
) + DescriptionStrLen
+ 1 + 1);
103 ZeroMem(SmbiosRecord
, sizeof (SMBIOS_TABLE_TYPE10
) + DescriptionStrLen
+ 1 + 1);
105 SmbiosRecord
->Hdr
.Type
= EFI_SMBIOS_TYPE_ONBOARD_DEVICE_INFORMATION
;
106 SmbiosRecord
->Hdr
.Length
= sizeof (SMBIOS_TABLE_TYPE10
);
109 // Make handle chosen by smbios protocol.add automatically.
111 SmbiosRecord
->Hdr
.Handle
= 0;
114 // Status & Type: Bit 7 Devicen Status, Bits 6:0 Type of Device
116 StatusAndType
= (UINT8
) ForType10InputData
->OnBoardDeviceStatus
.DeviceType
;
117 if (ForType10InputData
->OnBoardDeviceStatus
.DeviceEnabled
!= 0) {
118 StatusAndType
|= 0x80;
120 StatusAndType
&= 0x7F;
123 SmbiosRecord
->Device
[0].DeviceType
= StatusAndType
;
124 SmbiosRecord
->Device
[0].DescriptionString
= 1;
125 OptionalStrStart
= (CHAR8
*)(SmbiosRecord
+ 1);
126 UnicodeStrToAsciiStr(DeviceDescription
, OptionalStrStart
);
129 // Now we have got the full smbios record, call smbios protocol to add this record.
131 SmbiosHandle
= SMBIOS_HANDLE_PI_RESERVED
;
132 Status
= Smbios
-> Add(
136 (EFI_SMBIOS_TABLE_HEADER
*) SmbiosRecord
138 FreePool(SmbiosRecord
);