2 Implement TPM1.2 Ownership related command.
4 Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved. <BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. 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.
16 #include <IndustryStandard/Tpm12.h>
17 #include <Library/BaseMemoryLib.h>
18 #include <Library/BaseLib.h>
19 #include <Library/Tpm12DeviceLib.h>
24 TPM_RQU_COMMAND_HDR Hdr
;
25 } TPM_CMD_FORCE_CLEAR
;
28 TPM_RSP_COMMAND_HDR Hdr
;
29 } TPM_RSP_FORCE_CLEAR
;
34 Send ForceClear command to TPM1.2.
36 @retval EFI_SUCCESS Operation completed successfully.
37 @retval EFI_DEVICE_ERROR Unexpected device behavior.
48 TPM_CMD_FORCE_CLEAR SendBuffer
;
49 TPM_RSP_FORCE_CLEAR RecvBuffer
;
53 // send Tpm command TPM_ORD_ForceClear
55 TpmRecvSize
= sizeof (TPM_RSP_FORCE_CLEAR
);
56 TpmSendSize
= sizeof (TPM_CMD_FORCE_CLEAR
);
57 SendBuffer
.Hdr
.tag
= SwapBytes16 (TPM_TAG_RQU_COMMAND
);
58 SendBuffer
.Hdr
.paramSize
= SwapBytes32 (TpmSendSize
);
59 SendBuffer
.Hdr
.ordinal
= SwapBytes32 (TPM_ORD_ForceClear
);
61 Status
= Tpm12SubmitCommand (TpmSendSize
, (UINT8
*)&SendBuffer
, &TpmRecvSize
, (UINT8
*)&RecvBuffer
);
62 if (EFI_ERROR (Status
)) {
65 ReturnCode
= SwapBytes32(RecvBuffer
.Hdr
.returnCode
);
70 return EFI_DEVICE_ERROR
;