77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/** @file
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This library abstract how to access TPM2 hardware device.
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Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _TPM2_DEVICE_LIB_H_
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#define _TPM2_DEVICE_LIB_H_
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#include <Uefi/UefiBaseType.h>
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#include <IndustryStandard/Tpm2Acpi.h>
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/**
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This service enables the sending of commands to the TPM2.
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@param[in] InputParameterBlockSize Size of the TPM2 input parameter block.
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@param[in] InputParameterBlock Pointer to the TPM2 input parameter block.
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@param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block.
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@param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.
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@retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.
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@retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.
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@retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.
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**/
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EFI_STATUS
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EFIAPI
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Tpm2SubmitCommand (
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IN UINT32 InputParameterBlockSize,
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IN UINT8 *InputParameterBlock,
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IN OUT UINT32 *OutputParameterBlockSize,
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IN UINT8 *OutputParameterBlock
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);
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/**
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This service requests use TPM2.
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@retval EFI_SUCCESS Get the control of TPM2 chip.
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@retval EFI_NOT_FOUND TPM2 not found.
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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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Tpm2RequestUseTpm (
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VOID
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);
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/**
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This service checks for TPM device.
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@retval EFI_SUCCESS Supported TPM2 is present.
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@retval EFI_NOT_FOUND TPM2 not found.
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**/
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EFI_STATUS
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EFIAPI
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IsSupportedTpmPresent (
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VOID
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);
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/**
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Update TPM ACPI table with interface information.
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@param[in] Tpm2Acpi Pointer to Tpm2 ACPI table.
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@retval RETURN_SUCCESS Tpm2 table updated successfully.
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@retval EFI_NOT_FOUND The request could not be executed successfully.
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**/
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EFI_STATUS
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EFIAPI
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UpdateAcpiInterfaceInfo (
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IN EFI_TPM2_ACPI_TABLE *Tpm2Acpi
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);
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#endif
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