105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
/*
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* Copyright (c) 2013, ADVANSEE - http://www.advansee.com/
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup cc2538
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* @{
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*
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* \defgroup cc2538-crypto cc2538 AES/SHA cryptoprocessor
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*
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* Driver for the cc2538 AES/SHA cryptoprocessor
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* @{
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*
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* \file
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* Header file for the cc2538 AES/SHA cryptoprocessor driver
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*/
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#ifndef CRYPTO_H_
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#define CRYPTO_H_
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#include "contiki.h"
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#include "dev/sys-ctrl.h"
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#include "reg.h"
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/*---------------------------------------------------------------------------*/
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/** \name Crypto drivers return codes
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* @{
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*/
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#define CRYPTO_PENDING (-1)
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#define CRYPTO_SUCCESS 0
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#define CRYPTO_INVALID_PARAM 1
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#define CRYPTO_NULL_ERROR 2
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#define CRYPTO_RESOURCE_IN_USE 3
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#define CRYPTO_DMA_BUS_ERROR 4
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name Crypto macros
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* @{
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*/
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/** \brief Indicates whether the AES/SHA cryptoprocessor is enabled
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* \return Boolean value indicating whether the AES/SHA cryptoprocessor is
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* enabled
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*/
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#define CRYPTO_IS_ENABLED() (!!(REG(SYS_CTRL_RCGCSEC) & SYS_CTRL_RCGCSEC_AES))
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name Crypto functions
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* @{
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*/
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/** \brief Enables and resets the AES/SHA cryptoprocessor
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*/
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void crypto_init(void);
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/** \brief Enables the AES/SHA cryptoprocessor
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*/
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void crypto_enable(void);
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/** \brief Disables the AES/SHA cryptoprocessor
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* \note Call this function to save power when the cryptoprocessor is unused.
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*/
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void crypto_disable(void);
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/** \brief Registers a process to be notified of the completion of a crypto
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* operation
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* \param p Process to be polled upon IRQ
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* \note This function is only supposed to be called by the crypto drivers.
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*/
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void crypto_register_process_notification(struct process *p);
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/** @} */
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#endif /* CRYPTO_H_ */
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/**
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* @}
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* @}
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*/
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