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/** @addtogroup rng_file
*/
/*
* This file is part of the libopencm3 project.
*
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA RNG.H
The order of header inclusion is important. rng.h includes the device
specific memorymap.h header before including this header file.*/
/** @cond */
#ifdef LIBOPENCM3_RNG_H
/** @endcond */
#ifndef LIBOPENCM3_RNG_V1_H
#define LIBOPENCM3_RNG_V1_H
#include <stdbool.h>
#include <stdint.h>
/**@{*/
/* --- Random number generator registers ----------------------------------- */
/* Control register */
#define RNG_CR MMIO32(RNG_BASE + 0x00)
/* Status register */
#define RNG_SR MMIO32(RNG_BASE + 0x04)
/* Data register */
#define RNG_DR MMIO32(RNG_BASE + 0x08)
/* --- RNG_CR values ------------------------------------------------------- */
/* RNG ENABLE */
#define RNG_CR_RNGEN (1 << 2)
/* RNG interrupt enable */
#define RNG_CR_IE (1 << 3)
/* --- RNG_SR values ------------------------------------------------------- */
/* Data ready */
#define RNG_SR_DRDY (1 << 0)
/* Clock error current status */
#define RNG_SR_CECS (1 << 1)
/* Seed error current status */
#define RNG_SR_SECS (1 << 2)
/* Clock error interrupt status */
#define RNG_SR_CEIS (1 << 5)
/* Seed error interrupt status */
#define RNG_SR_SEIS (1 << 6)
/* --- Function prototypes ------------------------------------------------- */
BEGIN_DECLS
void rng_enable(void);
void rng_disable(void);
bool rng_get_random(uint32_t *rand_nr);
uint32_t rng_get_random_blocking(void);
END_DECLS
/**@}*/
#endif
/** @cond */
#else
#warning "rng_common_v1.h should not be included explicitly, only via rng.h"
#endif
/** @endcond */
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