stm32l4xx_ll_rng.c

00001 /**
00002   ******************************************************************************
00003   * @file    stm32l4xx_ll_rng.c
00004   * @author  MCD Application Team
00005   * @version V1.5.1
00006   * @date    31-May-2016
00007   * @brief   RNG LL module driver.
00008   ******************************************************************************
00009   * @attention
00010   *
00011   * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
00012   *
00013   * Redistribution and use in source and binary forms, with or without modification,
00014   * are permitted provided that the following conditions are met:
00015   *   1. Redistributions of source code must retain the above copyright notice,
00016   *      this list of conditions and the following disclaimer.
00017   *   2. Redistributions in binary form must reproduce the above copyright notice,
00018   *      this list of conditions and the following disclaimer in the documentation
00019   *      and/or other materials provided with the distribution.
00020   *   3. Neither the name of STMicroelectronics nor the names of its contributors
00021   *      may be used to endorse or promote products derived from this software
00022   *      without specific prior written permission.
00023   *
00024   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00025   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00026   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00027   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00028   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00029   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00030   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00031   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00032   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00033   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00034   *
00035   ******************************************************************************
00036   */
00037 #if defined(USE_FULL_LL_DRIVER)
00038 
00039 /* Includes ------------------------------------------------------------------*/
00040 #include "stm32l4xx_ll_rng.h"
00041 #include "stm32l4xx_ll_bus.h"
00042 
00043 #ifdef  USE_FULL_ASSERT
00044 #include "stm32_assert.h"
00045 #else
00046 #define assert_param(expr) ((void)0U)
00047 #endif
00048 
00049 /** @addtogroup STM32L4xx_LL_Driver
00050   * @{
00051   */
00052 
00053 #if defined (RNG)
00054 
00055 /** @addtogroup RNG_LL
00056   * @{
00057   */
00058 
00059 /* Private types -------------------------------------------------------------*/
00060 /* Private variables ---------------------------------------------------------*/
00061 /* Private constants ---------------------------------------------------------*/
00062 /* Private macros ------------------------------------------------------------*/
00063 /* Private function prototypes -----------------------------------------------*/
00064 
00065 /* Exported functions --------------------------------------------------------*/
00066 /** @addtogroup RNG_LL_Exported_Functions
00067   * @{
00068   */
00069 
00070 /** @addtogroup RNG_LL_EF_Init
00071   * @{
00072   */
00073 
00074 /**
00075   * @brief  De-initialize RNG registers (Registers restored to their default values).
00076   * @param  RNGx RNG Instance
00077   * @retval An ErrorStatus enumeration value:
00078   *          - SUCCESS: RNG registers are de-initialized
00079   *          - ERROR: not applicable
00080   */
00081 ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx)
00082 {
00083   /* Check the parameters */
00084   assert_param(IS_RNG_ALL_INSTANCE(RNGx));
00085 
00086   /* Enable RNG reset state */
00087   LL_AHB2_GRP1_ForceReset(LL_AHB2_GRP1_PERIPH_RNG);
00088 
00089   /* Release RNG from reset state */
00090   LL_AHB2_GRP1_ReleaseReset(LL_AHB2_GRP1_PERIPH_RNG);
00091 
00092   return (SUCCESS);
00093 }
00094 
00095 /**
00096   * @}
00097   */
00098 
00099 /**
00100   * @}
00101   */
00102 
00103 /**
00104   * @}
00105   */
00106 
00107 #endif /* defined (RNG) */
00108 
00109 /**
00110   * @}
00111   */
00112 
00113 #endif /* USE_FULL_LL_DRIVER */
00114 
00115 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
00116