112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
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/**
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******************************************************************************
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* @file stm32f4xx_ll_rng.c
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* @author MCD Application Team
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* @brief RNG LL module driver.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#if defined(USE_FULL_LL_DRIVER)
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx_ll_rng.h"
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#include "stm32f4xx_ll_bus.h"
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#ifdef USE_FULL_ASSERT
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#include "stm32_assert.h"
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#else
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#define assert_param(expr) ((void)0U)
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#endif /* USE_FULL_ASSERT */
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/** @addtogroup STM32F4xx_LL_Driver
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* @{
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*/
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#if defined (RNG)
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/** @addtogroup RNG_LL
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* @{
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*/
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/* Private macros ------------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup RNG_LL_Exported_Functions
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* @{
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*/
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/** @addtogroup RNG_LL_EF_Init
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* @{
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*/
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/**
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* @brief De-initialize RNG registers (Registers restored to their default values).
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* @param RNGx RNG Instance
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: RNG registers are de-initialized
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* - ERROR: not applicable
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*/
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ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx)
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{
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ErrorStatus status = SUCCESS;
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/* Check the parameters */
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assert_param(IS_RNG_ALL_INSTANCE(RNGx));
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if (RNGx == RNG)
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{
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#if !defined(RCC_AHB2_SUPPORT)
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/* Enable RNG reset state */
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LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_RNG);
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/* Release RNG from reset state */
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LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_RNG);
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#else
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/* Enable RNG reset state */
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LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_RNG);
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/* Release RNG from reset state */
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LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_RNG);
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#endif /* !RCC_AHB2_SUPPORT */
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}
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else
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{
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status = ERROR;
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}
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return status;
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* RNG */
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/**
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* @}
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*/
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#endif /* USE_FULL_LL_DRIVER */
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