SecurityPkg/Library/Tpm2DeviceLibDTpm/Tpm2DeviceLibDTpm.h

   1 /** @file
   2   This header file includes common internal fuction prototypes.
   3
   4 Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR>
   5 Copyright (c) Microsoft Corporation.
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #ifndef _TPM2_DEVICE_LIB_DTPM_H_
  11 #define _TPM2_DEVICE_LIB_DTPM_H_
  12
  13 /**
  14   Return PTP interface type.
  15
  16   @param[in] Register                Pointer to PTP register.
  17
  18   @return PTP interface type.
  19 **/
  20 TPM2_PTP_INTERFACE_TYPE
  21 Tpm2GetPtpInterface (
  22   IN VOID  *Register
  23   );
  24
  25 /**
  26   Return PTP CRB interface IdleByPass state.
  27
  28   @param[in] Register                Pointer to PTP register.
  29
  30   @return PTP CRB interface IdleByPass state.
  31 **/
  32 UINT8
  33 Tpm2GetIdleByPass (
  34   IN VOID  *Register
  35   );
  36
  37 /**
  38   Return cached PTP interface type.
  39
  40   @return Cached PTP interface type.
  41 **/
  42 TPM2_PTP_INTERFACE_TYPE
  43 GetCachedPtpInterface (
  44   VOID
  45   );
  46
  47 /**
  48   Return cached PTP CRB interface IdleByPass state.
  49
  50   @return Cached PTP CRB interface IdleByPass state.
  51 **/
  52 UINT8
  53 GetCachedIdleByPass (
  54   VOID
  55   );
  56
  57 /**
  58   The common function cache current active TpmInterfaceType when needed.
  59
  60   @retval EFI_SUCCESS   DTPM2.0 instance is registered, or system does not support register DTPM2.0 instance
  61 **/
  62 EFI_STATUS
  63 InternalTpm2DeviceLibDTpmCommonConstructor (
  64   VOID
  65   );
  66
  67 #endif // _TPM2_DEVICE_LIB_DTPM_H_