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1/** @file\r
2 This library abstract how to access TPM12 hardware device.\r
3\r
b3548d32 4Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR>\r
289b714b 5SPDX-License-Identifier: BSD-2-Clause-Patent\r
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6\r
7**/\r
8\r
9#ifndef _TPM12_DEVICE_LIB_H_\r
10#define _TPM12_DEVICE_LIB_H_\r
11\r
12#include <IndustryStandard/Tpm12.h>\r
13\r
14/**\r
15 This service enables the sending of commands to the TPM12.\r
16\r
17 @param[in] InputParameterBlockSize Size of the TPM12 input parameter block.\r
18 @param[in] InputParameterBlock Pointer to the TPM12 input parameter block.\r
19 @param[in,out] OutputParameterBlockSize Size of the TPM12 output parameter block.\r
20 @param[in] OutputParameterBlock Pointer to the TPM12 output parameter block.\r
21\r
22 @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.\r
23 @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.\r
b3548d32 24 @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.\r
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25**/\r
26EFI_STATUS\r
27EFIAPI\r
28Tpm12SubmitCommand (\r
29 IN UINT32 InputParameterBlockSize,\r
30 IN UINT8 *InputParameterBlock,\r
31 IN OUT UINT32 *OutputParameterBlockSize,\r
32 IN UINT8 *OutputParameterBlock\r
33 );\r
34\r
35/**\r
36 This service requests use TPM12.\r
37\r
38 @retval EFI_SUCCESS Get the control of TPM12 chip.\r
39 @retval EFI_NOT_FOUND TPM12 not found.\r
40 @retval EFI_DEVICE_ERROR Unexpected device behavior.\r
41**/\r
42EFI_STATUS\r
43EFIAPI\r
44Tpm12RequestUseTpm (\r
45 VOID\r
46 );\r
47\r
48#endif\r