stm32f4xx_ll_rng.c

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/**
  ******************************************************************************
  * @file    stm32f4xx_ll_rng.c
  * @author  MCD Application Team
  * @brief   RNG LL module driver.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
#if defined(USE_FULL_LL_DRIVER)

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_ll_rng.h"
#include "stm32f4xx_ll_bus.h"

#ifdef  USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */

/** @addtogroup STM32F4xx_LL_Driver
  * @{
  */

#if defined (RNG)

/** @addtogroup RNG_LL
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/

/* Exported functions --------------------------------------------------------*/
/** @addtogroup RNG_LL_Exported_Functions
  * @{
  */

/** @addtogroup RNG_LL_EF_Init
  * @{
  */

/**
  * @brief  De-initialize RNG registers (Registers restored to their default values).
  * @param  RNGx RNG Instance
  * @retval An ErrorStatus enumeration value:
  *          - SUCCESS: RNG registers are de-initialized
  *          - ERROR: not applicable
  */
ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx)
{
  /* Check the parameters */
  assert_param(IS_RNG_ALL_INSTANCE(RNGx));
#if !defined(RCC_AHB2_SUPPORT)
  /* Enable RNG reset state */
  LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_RNG);

  /* Release RNG from reset state */
  LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_RNG);
#else
  /* Enable RNG reset state */
  LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_RNG);

  /* Release RNG from reset state */
  LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_RNG);
#endif /* !RCC_AHB2_SUPPORT */
  return (SUCCESS);
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#endif /* RNG */

/**
  * @}
  */

#endif /* USE_FULL_LL_DRIVER */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/