lib/main/STM32F7/Drivers/STM32F7xx_HAL_Driver/Src/stm32f7xx_ll_rng.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f7xx_ll_rng.c
   4   * @author  MCD Application Team
   5   * @brief   RNG LL module driver.
   6   ******************************************************************************
   7   * @attention
   8   *
   9   * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
  10   * All rights reserved.</center></h2>
  11   *
  12   * This software component is licensed by ST under BSD 3-Clause license,
  13   * the "License"; You may not use this file except in compliance with the
  14   * License. You may obtain a copy of the License at:
  15   *                        opensource.org/licenses/BSD-3-Clause
  16   *
  17   ******************************************************************************
  18   */
  19 #if defined(USE_FULL_LL_DRIVER)
  20
  21 /* Includes ------------------------------------------------------------------*/
  22 #include "stm32f7xx_ll_rng.h"
  23 #include "stm32f7xx_ll_bus.h"
  24
  25 #ifdef  USE_FULL_ASSERT
  26 #include "stm32_assert.h"
  27 #else
  28 #define assert_param(expr) ((void)0U)
  29 #endif
  30
  31 /** @addtogroup STM32F7xx_LL_Driver
  32   * @{
  33   */
  34
  35 #if defined (RNG)
  36
  37 /** @addtogroup RNG_LL
  38   * @{
  39   */
  40
  41 /* Private types -------------------------------------------------------------*/
  42 /* Private variables ---------------------------------------------------------*/
  43 /* Private constants ---------------------------------------------------------*/
  44 /* Private macros ------------------------------------------------------------*/
  45 /* Private function prototypes -----------------------------------------------*/
  46
  47 /* Exported functions --------------------------------------------------------*/
  48 /** @addtogroup RNG_LL_Exported_Functions
  49   * @{
  50   */
  51
  52 /** @addtogroup RNG_LL_EF_Init
  53   * @{
  54   */
  55
  56 /**
  57   * @brief  De-initialize RNG registers (Registers restored to their default values).
  58   * @param  RNGx RNG Instance
  59   * @retval An ErrorStatus enumeration value:
  60   *          - SUCCESS: RNG registers are de-initialized
  61   *          - ERROR: not applicable
  62   */
  63 ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx)
  64 {
  65   /* Check the parameters */
  66   assert_param(IS_RNG_ALL_INSTANCE(RNGx));
  67   /* Enable RNG reset state */
  68   LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_RNG);
  69
  70   /* Release RNG from reset state */
  71   LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_RNG);
  72   return (SUCCESS);
  73 }
  74
  75 /**
  76   * @}
  77   */
  78
  79 /**
  80   * @}
  81   */
  82
  83 /**
  84   * @}
  85   */
  86
  87 #endif /* RNG */
  88
  89 /**
  90   * @}
  91   */
  92
  93 #endif /* USE_FULL_LL_DRIVER */
  94
  95 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  96