text: /** @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);
  void rng_interrupt_enable(void);
  void rng_interrupt_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 */
  
  