878ddf1fc3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
165 lines
4.5 KiB
C
165 lines
4.5 KiB
C
/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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MiscOnboardDeviceFunction.c
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Abstract:
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Onboard device information boot time changes.
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Misc. subclass type 8.
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SMBIOS type 10.
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--*/
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#include "MiscSubclassDriver.h"
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#include "winntio/winntio.h"
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#include "winntthunk/winntthunk.h"
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#pragma pack(1)
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typedef struct _VENDOR_DEVICE {
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EFI_DEVICE_PATH_PROTOCOL Platform;
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EFI_GUID PlatformGuid;
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EFI_DEVICE_PATH_PROTOCOL Device;
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EFI_GUID DeviceGuid;
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UINT8 DeviceData[4];
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EFI_DEVICE_PATH_PROTOCOL End;
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} VENDOR_DEVICE;
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#pragma pack()
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MISC_SUBCLASS_TABLE_FUNCTION (
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MiscOnboardDeviceVideo
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)
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/*++
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Description:
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This function makes boot time changes to the contents of the
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MiscOnboardDevice structure.
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Parameters:
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RecordType
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Type of record to be processed from the Data Table.
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mMiscSubclassDataTable[].RecordType
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RecordLen
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Size of static RecordData from the Data Table.
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mMiscSubclassDataTable[].RecordLen
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RecordData
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Pointer to copy of RecordData from the Data Table. Changes made
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to this copy will be written to the Data Hub but will not alter
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the contents of the static Data Table.
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LogRecordData
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Set *LogRecordData to TRUE to log RecordData to Data Hub.
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Set *LogRecordData to FALSE when there is no more data to log.
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Returns:
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EFI_SUCCESS
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All parameters were valid and *RecordData and *LogRecordData have
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been set.
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EFI_UNSUPPORTED
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Unexpected RecordType value.
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EFI_INVALID_PARAMETER
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One of the following parameter conditions was true:
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RecordLen was zero.
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RecordData was NULL.
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LogRecordData was NULL.
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--*/
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{
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STATIC VENDOR_DEVICE mVideoDevicePath = {
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{
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HARDWARE_DEVICE_PATH,
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HW_VENDOR_DP,
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0x14
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},
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EFI_WIN_NT_THUNK_PROTOCOL_GUID,
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{
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HARDWARE_DEVICE_PATH,
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HW_VENDOR_DP,
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0x18
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},
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EFI_WIN_NT_UGA_GUID,
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0,
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0,
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0,
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0,
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END
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};
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STATIC BOOLEAN Done = FALSE;
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//
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// First check for invalid parameters.
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//
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if (RecordLen == 0 || RecordData == NULL || LogRecordData == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Then check for unsupported RecordType.
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//
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if (RecordType != EFI_MISC_ONBOARD_DEVICE_DATA_RECORD_NUMBER) {
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return EFI_UNSUPPORTED;
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}
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//
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// Is this the first time through this function?
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//
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if (!Done) {
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//
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// Yes, this is the first time. Inspect/Change the contents of the
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// RecordData structure.
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//
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//
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// Any time changes?
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//
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// %%TBD
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//
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// Set Done flag to TRUE for next pass through this function.
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// Set *LogRecordData to TRUE so data will get logged to Data Hub.
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//
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switch (((EFI_MISC_ONBOARD_DEVICE_DATA *) RecordData)->OnBoardDeviceDescription) {
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case STR_MISC_ONBOARD_DEVICE_VIDEO_DESCRIPTION:
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{
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CopyMem (
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&((EFI_MISC_ONBOARD_DEVICE_DATA *) RecordData)->OnBoardDevicePath,
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&mVideoDevicePath,
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GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) &mVideoDevicePath)
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);
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*RecordLen = *RecordLen - sizeof (EFI_DEVICE_PATH_PROTOCOL) + GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) &mVideoDevicePath);
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}
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break;
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}
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Done = TRUE;
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*LogRecordData = TRUE;
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} else {
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//
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// No, this is the second time. Reset the state of the Done flag
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// to FALSE and tell the data logger that there is no more data
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// to be logged for this record type. If any memory allocations
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// were made by earlier passes, they must be released now.
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//
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Done = FALSE;
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*LogRecordData = FALSE;
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}
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return EFI_SUCCESS;
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}
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/* eof - MiscOnboardDeviceFunction.c */
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