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- /*++
- Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
- --*/
- #ifndef _EFI_PTT_PASS_THRU_H
- #define _EFI_PTT_PASS_THRU_H
- #define PTT_PASS_THRU_PROTOCOL_GUID \
- { \
- 0x73e2576, 0xf6c1, 0x4b91, 0x92, 0xa9, 0xd4, 0x67, 0x5d, 0xda, 0x34, 0xb1 \
- }
- // {073E2576-F6C1-4b91-92A9-D4675DDA34B1}
- //static const GUID <<name>> =
- //{ 0x73e2576, 0xf6c1, 0x4b91, { 0x92, 0xa9, 0xd4, 0x67, 0x5d, 0xda, 0x34, 0xb1 } };
- //#define EFI_PTT_PROTOCOL_GUID HECI_PROTOCOL_GUID
- typedef struct _PTT_PASS_THRU_PROTOCOL PTT_PASS_THRU_PROTOCOL;
- /**
- This service enables the sending of commands to the TPM2.
- @param[in] InputParameterBlockSize Size of the TPM2 input parameter block.
- @param[in] InputParameterBlock Pointer to the TPM2 input parameter block.
- @param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block.
- @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.
- @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.
- @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.
- @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.
- **/
- typedef
- EFI_STATUS
- (EFIAPI *TPM2_SUBMIT_COMMAND) (
- IN PTT_PASS_THRU_PROTOCOL *This,
- IN UINT32 InputParameterBlockSize,
- IN UINT8 *InputParameterBlock,
- IN OUT UINT32 *OutputParameterBlockSize,
- IN UINT8 *OutputParameterBlock
- );
- /**
- This service requests use TPM2.
- @retval EFI_SUCCESS Get the control of TPM2 chip.
- @retval EFI_NOT_FOUND TPM2 not found.
- @retval EFI_DEVICE_ERROR Unexpected device behavior.
- **/
- typedef
- EFI_STATUS
- (EFIAPI *TPM2_REQUEST_USE_TPM) (
- IN PTT_PASS_THRU_PROTOCOL *This
- );
- typedef struct {
- EFI_GUID ProviderGuid;
- TPM2_SUBMIT_COMMAND Tpm2SubmitCommand;
- TPM2_REQUEST_USE_TPM Tpm2RequestUseTpm;
- } PTT_TPM2_DEVICE_INTERFACE;
- /**
- This service register TPM2 device.
- @param Tpm2Device TPM2 device
- @retval EFI_SUCCESS This TPM2 device is registered successfully.
- @retval EFI_UNSUPPORTED System does not support register this TPM2 device.
- @retval EFI_ALREADY_STARTED System already register this TPM2 device.
- **/
- typedef
- EFI_STATUS
- (EFIAPI *TPM2_REGISTER_TPM2_DEVICE_LIB) (
- IN PTT_PASS_THRU_PROTOCOL *This,
- IN PTT_TPM2_DEVICE_INTERFACE *Tpm2Device
- );
-
- typedef struct _PTT_PASS_THRU_PROTOCOL {
- TPM2_SUBMIT_COMMAND Tpm2SubmitCommand;
- TPM2_REQUEST_USE_TPM Tpm2RequestUseTpm;
- TPM2_REGISTER_TPM2_DEVICE_LIB Tpm2RegisterTpm2DeviceLib;
- } PTT_PASS_THRU_PROTOCOL;
- extern EFI_GUID gPttPassThruProtocolGuid;
- #endif // _EFI_HECI_H
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