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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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