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/**
* \file
*
* \brief Random Number Generator (RAND) related functionality declaration.
*
* Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
*
* \asf_license_start
*
* \page License
*
* Subject to your compliance with these terms, you may use Microchip
* software and any derivatives exclusively with Microchip products.
* It is your responsibility to comply with third party license terms applicable
* to your use of third party software (including open source software) that
* may accompany Microchip software.
*
* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
*
* \asf_license_stop
*
*/
#ifndef _HPL_RAND_SYNC_H_INCLUDED
#define _HPL_RAND_SYNC_H_INCLUDED
#include <compiler.h>
#ifdef __cplusplus
extern "C" {
#endif
/** Random Number Generator polling device. */
struct _rand_sync_dev {
/** Pointer to private data or hardware base */
void *prvt;
/** Number of bits generated for each read operation */
uint8_t n_bits;
};
/**
* \brief Initialize the Random Number Generator Driver
* \param[out] dev Pointer to the device instance struct
* \param[in, out] hw Pointer to the hardware for device instance
* \return Initialization operation result status, 0 for OK.
*/
int32_t _rand_sync_init(struct _rand_sync_dev *const dev, void *const hw);
/**
* \brief Deinitialize the Random Number Generator Driver
* \param[in, out] dev Pointer to the device instance struct
*/
void _rand_sync_deinit(struct _rand_sync_dev *const dev);
/**
* \brief Enable the Random Number Generator Driver
* \param[out] dev Pointer to the device instance struct
* \return Enable operation result status, 0 for OK.
*/
int32_t _rand_sync_enable(struct _rand_sync_dev *const dev);
/**
* \brief Disable the Random Number Generator Driver
* \param[out] dev Pointer to the device instance struct
*/
void _rand_sync_disable(struct _rand_sync_dev *const dev);
/**
* \brief Set seed for the Random Number Generator Driver
* \param[out] dev Pointer to the device instance struct
* \param[in] seed The seed to set
* \return Operation result
* \retval ERR_NONE Operation complete success
* \retval ERR_UNSUPPORTED_OP Seed not supported
*/
int32_t _rand_sync_set_seed(struct _rand_sync_dev *const dev, const uint32_t seed);
/**
* \brief Polling random number until it's read back
* \param[in] dev Pointer to the device instance struct
* \return The random number value
*/
uint32_t _rand_sync_read_one(const struct _rand_sync_dev *const dev);
#ifdef __cplusplus
}
#endif
/**@}*/
#endif /* _HPL_RAND_SYNC_H_INCLUDED */
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