4ccef56102
2) Correct a typo in file comments of Tpm12Ownership.c Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Dong, Guo <guo.dong@intel.com> Reviewed-by: Gao, Liming <liming.gao@intel.com> Reviewed-by: Yao, Jiewen <jiewen.yao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15811 6f19259b-4bc3-4df7-8a09-765794883524
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/** @file
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Implement TPM1.2 Ownership related command.
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Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved. <BR>
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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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**/
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#include <Uefi.h>
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#include <IndustryStandard/Tpm12.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/BaseLib.h>
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#include <Library/Tpm12DeviceLib.h>
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#pragma pack(1)
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typedef struct {
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TPM_RQU_COMMAND_HDR Hdr;
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} TPM_CMD_FORCE_CLEAR;
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typedef struct {
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TPM_RSP_COMMAND_HDR Hdr;
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} TPM_RSP_FORCE_CLEAR;
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#pragma pack()
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/**
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Send ForceClear command to TPM1.2.
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@retval EFI_SUCCESS Operation completed successfully.
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@retval EFI_DEVICE_ERROR Unexpected device behavior.
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**/
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EFI_STATUS
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EFIAPI
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Tpm12ForceClear (
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VOID
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)
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{
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EFI_STATUS Status;
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UINT32 TpmRecvSize;
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UINT32 TpmSendSize;
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TPM_CMD_FORCE_CLEAR SendBuffer;
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TPM_RSP_FORCE_CLEAR RecvBuffer;
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UINT32 ReturnCode;
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//
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// send Tpm command TPM_ORD_ForceClear
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//
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TpmRecvSize = sizeof (TPM_RSP_FORCE_CLEAR);
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TpmSendSize = sizeof (TPM_CMD_FORCE_CLEAR);
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SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);
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SendBuffer.Hdr.paramSize = SwapBytes32 (TpmSendSize);
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SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_ForceClear);
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Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);
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switch (ReturnCode) {
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case TPM_SUCCESS:
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return EFI_SUCCESS;
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default:
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return EFI_DEVICE_ERROR;
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}
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} |