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/** @file
Public definitions for the Replay Protected Monotonic Counter (RPMC) Library.
Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _RPMC_LIB_H_
#define _RPMC_LIB_H_
#include <Uefi/UefiBaseType.h>
/**
Requests the monotonic counter from the designated RPMC counter.
@param[in] CounterIndex The RPMC index
@param[out] CounterValue A pointer to a buffer to store the RPMC value.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to update the counter.
@retval EFI_UNSUPPORTED The operation is un-supported.
**/
EFI_STATUS
EFIAPI
RequestMonotonicCounter (
IN UINT8 CounterIndex,
OUT UINT32 *CounterValue
);
/**
Increments the monotonic counter in the SPI flash device by 1.
@param[in] CounterIndex The RPMC index
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to update the counter.
@retval EFI_UNSUPPORTED The operation is un-supported.
**/
EFI_STATUS
EFIAPI
IncrementMonotonicCounter (
IN UINT8 CounterIndex
);
#endif
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