diff options
Diffstat (limited to 'EdkNt32Pkg/Dxe/Nt32Platform/MiscSubclass/MiscOnboardDeviceFunction.c')
| -rw-r--r-- | EdkNt32Pkg/Dxe/Nt32Platform/MiscSubclass/MiscOnboardDeviceFunction.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/EdkNt32Pkg/Dxe/Nt32Platform/MiscSubclass/MiscOnboardDeviceFunction.c b/EdkNt32Pkg/Dxe/Nt32Platform/MiscSubclass/MiscOnboardDeviceFunction.c new file mode 100644 index 0000000000..d96b6cc2ad --- /dev/null +++ b/EdkNt32Pkg/Dxe/Nt32Platform/MiscSubclass/MiscOnboardDeviceFunction.c @@ -0,0 +1,164 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+ MiscOnboardDeviceFunction.c
+
+Abstract:
+
+ Onboard device information boot time changes.
+ Misc. subclass type 8.
+ SMBIOS type 10.
+
+--*/
+
+#include "MiscSubclassDriver.h"
+#include "winntio/winntio.h"
+#include "winntthunk/winntthunk.h"
+
+#pragma pack(1)
+
+typedef struct _VENDOR_DEVICE {
+ EFI_DEVICE_PATH_PROTOCOL Platform;
+ EFI_GUID PlatformGuid;
+ EFI_DEVICE_PATH_PROTOCOL Device;
+ EFI_GUID DeviceGuid;
+ UINT8 DeviceData[4];
+ EFI_DEVICE_PATH_PROTOCOL End;
+
+} VENDOR_DEVICE;
+#pragma pack()
+
+MISC_SUBCLASS_TABLE_FUNCTION (
+ MiscOnboardDeviceVideo
+ )
+/*++
+Description:
+
+ This function makes boot time changes to the contents of the
+ MiscOnboardDevice structure.
+
+Parameters:
+
+ RecordType
+ Type of record to be processed from the Data Table.
+ mMiscSubclassDataTable[].RecordType
+
+ RecordLen
+ Size of static RecordData from the Data Table.
+ mMiscSubclassDataTable[].RecordLen
+
+ RecordData
+ Pointer to copy of RecordData from the Data Table. Changes made
+ to this copy will be written to the Data Hub but will not alter
+ the contents of the static Data Table.
+
+ LogRecordData
+ Set *LogRecordData to TRUE to log RecordData to Data Hub.
+ Set *LogRecordData to FALSE when there is no more data to log.
+
+Returns:
+
+ EFI_SUCCESS
+ All parameters were valid and *RecordData and *LogRecordData have
+ been set.
+
+ EFI_UNSUPPORTED
+ Unexpected RecordType value.
+
+ EFI_INVALID_PARAMETER
+ One of the following parameter conditions was true:
+ RecordLen was zero.
+ RecordData was NULL.
+ LogRecordData was NULL.
+--*/
+{
+ STATIC VENDOR_DEVICE mVideoDevicePath = {
+ {
+ HARDWARE_DEVICE_PATH,
+ HW_VENDOR_DP,
+ 0x14
+ },
+ EFI_WIN_NT_THUNK_PROTOCOL_GUID,
+ {
+ HARDWARE_DEVICE_PATH,
+ HW_VENDOR_DP,
+ 0x18
+ },
+ EFI_WIN_NT_UGA_GUID,
+ 0,
+ 0,
+ 0,
+ 0,
+ END
+ };
+
+ STATIC BOOLEAN Done = FALSE;
+
+ //
+ // First check for invalid parameters.
+ //
+ if (RecordLen == 0 || RecordData == NULL || LogRecordData == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+ //
+ // Then check for unsupported RecordType.
+ //
+ if (RecordType != EFI_MISC_ONBOARD_DEVICE_DATA_RECORD_NUMBER) {
+ return EFI_UNSUPPORTED;
+ }
+ //
+ // Is this the first time through this function?
+ //
+ if (!Done) {
+ //
+ // Yes, this is the first time. Inspect/Change the contents of the
+ // RecordData structure.
+ //
+ //
+ // Any time changes?
+ //
+ // %%TBD
+ //
+ // Set Done flag to TRUE for next pass through this function.
+ // Set *LogRecordData to TRUE so data will get logged to Data Hub.
+ //
+ switch (((EFI_MISC_ONBOARD_DEVICE_DATA *) RecordData)->OnBoardDeviceDescription) {
+ case STR_MISC_ONBOARD_DEVICE_VIDEO_DESCRIPTION:
+ {
+ CopyMem (
+ &((EFI_MISC_ONBOARD_DEVICE_DATA *) RecordData)->OnBoardDevicePath,
+ &mVideoDevicePath,
+ GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) &mVideoDevicePath)
+ );
+ *RecordLen = *RecordLen - sizeof (EFI_DEVICE_PATH_PROTOCOL) + GetDevicePathSize ((EFI_DEVICE_PATH_PROTOCOL *) &mVideoDevicePath);
+ }
+ break;
+ }
+
+ Done = TRUE;
+ *LogRecordData = TRUE;
+ } else {
+ //
+ // No, this is the second time. Reset the state of the Done flag
+ // to FALSE and tell the data logger that there is no more data
+ // to be logged for this record type. If any memory allocations
+ // were made by earlier passes, they must be released now.
+ //
+ Done = FALSE;
+ *LogRecordData = FALSE;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/* eof - MiscOnboardDeviceFunction.c */
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