2 Implement TPM1.2 Physical Presence related command.
4 Copyright (c) 2016, 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 <Library/Tpm12CommandLib.h>
17 #include <Library/BaseLib.h>
18 #include <Library/DebugLib.h>
19 #include <Library/Tpm12DeviceLib.h>
24 TPM_RQU_COMMAND_HDR Hdr
;
25 TPM_PHYSICAL_PRESENCE PhysicalPresence
;
26 } TPM_CMD_PHYSICAL_PRESENCE
;
31 Send TSC_PhysicalPresence command to TPM.
33 @param[in] PhysicalPresence The state to set the TPMs Physical Presence flags.
35 @retval EFI_SUCCESS Operation completed successfully.
36 @retval EFI_TIMEOUT The register can't run into the expected status in time.
37 @retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.
38 @retval EFI_DEVICE_ERROR Unexpected device behavior.
43 Tpm12PhysicalPresence (
44 IN TPM_PHYSICAL_PRESENCE PhysicalPresence
48 TPM_CMD_PHYSICAL_PRESENCE Command
;
49 TPM_RSP_COMMAND_HDR Response
;
53 // send Tpm command TSC_ORD_PhysicalPresence
55 Command
.Hdr
.tag
= SwapBytes16 (TPM_TAG_RQU_COMMAND
);
56 Command
.Hdr
.paramSize
= SwapBytes32 (sizeof (Command
));
57 Command
.Hdr
.ordinal
= SwapBytes32 (TSC_ORD_PhysicalPresence
);
58 Command
.PhysicalPresence
= SwapBytes16 (PhysicalPresence
);
59 Length
= sizeof (Response
);
61 Status
= Tpm12SubmitCommand (sizeof (Command
), (UINT8
*)&Command
, &Length
, (UINT8
*)&Response
);
62 if (EFI_ERROR (Status
)) {
66 if (SwapBytes32(Response
.returnCode
) != TPM_SUCCESS
) {
67 DEBUG ((EFI_D_ERROR
, "Tpm12PhysicalPresence: Response Code error! 0x%08x\r\n", SwapBytes32(Response
.returnCode
)));
68 return EFI_DEVICE_ERROR
;