/* ---------------------------------------------------------------------------- | |
* SAM Software Package License | |
* ---------------------------------------------------------------------------- | |
* Copyright (c) 2015, Atmel Corporation | |
* | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions are met: | |
* | |
* - Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the disclaimer below. | |
* | |
* Atmel's name may not be used to endorse or promote products derived from | |
* this software without specific prior written permission. | |
* | |
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR | |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE | |
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, | |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* ---------------------------------------------------------------------------- | |
*/ | |
#ifndef _SHA_ | |
#define _SHA_ | |
/*------------------------------------------------------------------------------ | |
* Headers | |
*----------------------------------------------------------------------------*/ | |
#include "chip.h" | |
/*----------------------------------------------------------------------------*/ | |
/* Exported functions */ | |
/*----------------------------------------------------------------------------*/ | |
/** | |
* \brief Starts Manual hash algorithm process. | |
*/ | |
extern void sha_start(void); | |
/** | |
* \brief Resets the SHA. A software triggered hardware reset of the | |
* SHA interface is performed. | |
*/ | |
extern void sha_soft_reset(void); | |
/** | |
* \brief Indicates that the next block to process is the first one of | |
* a message. | |
*/ | |
extern void sha_first_block(void); | |
/** | |
* \brief Configures an SHA peripheral with the specified parameters. | |
* \param mode Desired value for the SHA mode register (see the datasheet). | |
*/ | |
extern void sha_configure(uint32_t mode); | |
/** | |
* \brief Enables the selected interrupts sources on a SHA peripheral. | |
* \param sources Bitwise OR of selected interrupt sources. | |
*/ | |
extern void sha_enable_it(uint32_t sources); | |
/** | |
* \brief Disables the selected interrupts sources on a SHA peripheral. | |
* \param sources Bitwise OR of selected interrupt sources. | |
*/ | |
extern void sha_disable_it(uint32_t sources); | |
/** | |
* \brief Get the current status register of the given SHA peripheral. | |
* \return SHA status register. | |
*/ | |
extern uint32_t sha_get_status(void); | |
/** | |
* \brief Set the 32-bit Input Data registers allow to load the data block used for hash processing. | |
* \param data Pointer data block. | |
* \param len 512/1024-bits block size | |
*/ | |
extern void sha_set_input(uint32_t * data, uint8_t len); | |
/** | |
* \brief Getread the resulting message digest and to write the second part of the message block when the | |
* SHA algorithm is SHA-384 or SHA-512. | |
* \param data pointer to the word that has been encrypted/decrypted.. | |
*/ | |
extern void sha_get_output(uint32_t * data); | |
#endif /* #ifndef _SHA_ */ |