337 lines
8.6 KiB
C
337 lines
8.6 KiB
C
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/**
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******************************************************************************
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* @file stm32f4xx_ll_rng.h
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* @author MCD Application Team
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* @brief Header file of RNG LL module.
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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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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef STM32F4xx_LL_RNG_H
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#define STM32F4xx_LL_RNG_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx.h"
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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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/** @defgroup RNG_LL RNG
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* @{
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*/
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/* Private types -------------------------------------------------------------*/
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/* Private defines -----------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/* Private macros ------------------------------------------------------------*/
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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup RNG_LL_Exported_Constants RNG Exported Constants
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* @{
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*/
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/** @defgroup RNG_LL_EC_GET_FLAG Get Flags Defines
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* @brief Flags defines which can be used with LL_RNG_ReadReg function
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* @{
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*/
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#define LL_RNG_SR_DRDY RNG_SR_DRDY /*!< Register contains valid random data */
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#define LL_RNG_SR_CECS RNG_SR_CECS /*!< Clock error current status */
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#define LL_RNG_SR_SECS RNG_SR_SECS /*!< Seed error current status */
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#define LL_RNG_SR_CEIS RNG_SR_CEIS /*!< Clock error interrupt status */
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#define LL_RNG_SR_SEIS RNG_SR_SEIS /*!< Seed error interrupt status */
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/**
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* @}
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*/
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/** @defgroup RNG_LL_EC_IT IT Defines
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* @brief IT defines which can be used with LL_RNG_ReadReg and LL_RNG_WriteReg macros
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* @{
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*/
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#define LL_RNG_CR_IE RNG_CR_IE /*!< RNG Interrupt enable */
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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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/* Exported macro ------------------------------------------------------------*/
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/** @defgroup RNG_LL_Exported_Macros RNG Exported Macros
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* @{
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*/
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/** @defgroup RNG_LL_EM_WRITE_READ Common Write and read registers Macros
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* @{
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*/
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/**
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* @brief Write a value in RNG register
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* @param __INSTANCE__ RNG Instance
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* @param __REG__ Register to be written
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* @param __VALUE__ Value to be written in the register
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* @retval None
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*/
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#define LL_RNG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
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/**
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* @brief Read a value in RNG register
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* @param __INSTANCE__ RNG Instance
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* @param __REG__ Register to be read
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* @retval Register value
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*/
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#define LL_RNG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
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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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/* Exported functions --------------------------------------------------------*/
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/** @defgroup RNG_LL_Exported_Functions RNG Exported Functions
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* @{
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*/
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/** @defgroup RNG_LL_EF_Configuration RNG Configuration functions
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* @{
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*/
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/**
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* @brief Enable Random Number Generation
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* @rmtoll CR RNGEN LL_RNG_Enable
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* @param RNGx RNG Instance
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* @retval None
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*/
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__STATIC_INLINE void LL_RNG_Enable(RNG_TypeDef *RNGx)
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{
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SET_BIT(RNGx->CR, RNG_CR_RNGEN);
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}
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/**
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* @brief Disable Random Number Generation
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* @rmtoll CR RNGEN LL_RNG_Disable
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* @param RNGx RNG Instance
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* @retval None
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*/
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__STATIC_INLINE void LL_RNG_Disable(RNG_TypeDef *RNGx)
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{
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CLEAR_BIT(RNGx->CR, RNG_CR_RNGEN);
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}
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/**
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* @brief Check if Random Number Generator is enabled
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* @rmtoll CR RNGEN LL_RNG_IsEnabled
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* @param RNGx RNG Instance
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* @retval State of bit (1 or 0).
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*/
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__STATIC_INLINE uint32_t LL_RNG_IsEnabled(const RNG_TypeDef *RNGx)
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{
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return ((READ_BIT(RNGx->CR, RNG_CR_RNGEN) == (RNG_CR_RNGEN)) ? 1UL : 0UL);
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}
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/**
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* @}
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*/
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/** @defgroup RNG_LL_EF_FLAG_Management FLAG Management
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* @{
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*/
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/**
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* @brief Indicate if the RNG Data ready Flag is set or not
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* @rmtoll SR DRDY LL_RNG_IsActiveFlag_DRDY
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* @param RNGx RNG Instance
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* @retval State of bit (1 or 0).
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*/
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__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_DRDY(const RNG_TypeDef *RNGx)
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{
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return ((READ_BIT(RNGx->SR, RNG_SR_DRDY) == (RNG_SR_DRDY)) ? 1UL : 0UL);
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}
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/**
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* @brief Indicate if the Clock Error Current Status Flag is set or not
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* @rmtoll SR CECS LL_RNG_IsActiveFlag_CECS
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* @param RNGx RNG Instance
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* @retval State of bit (1 or 0).
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*/
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__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CECS(const RNG_TypeDef *RNGx)
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{
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return ((READ_BIT(RNGx->SR, RNG_SR_CECS) == (RNG_SR_CECS)) ? 1UL : 0UL);
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}
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/**
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* @brief Indicate if the Seed Error Current Status Flag is set or not
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* @rmtoll SR SECS LL_RNG_IsActiveFlag_SECS
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* @param RNGx RNG Instance
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* @retval State of bit (1 or 0).
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*/
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__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SECS(const RNG_TypeDef *RNGx)
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{
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return ((READ_BIT(RNGx->SR, RNG_SR_SECS) == (RNG_SR_SECS)) ? 1UL : 0UL);
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}
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/**
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* @brief Indicate if the Clock Error Interrupt Status Flag is set or not
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* @rmtoll SR CEIS LL_RNG_IsActiveFlag_CEIS
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* @param RNGx RNG Instance
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* @retval State of bit (1 or 0).
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*/
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__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CEIS(const RNG_TypeDef *RNGx)
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{
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return ((READ_BIT(RNGx->SR, RNG_SR_CEIS) == (RNG_SR_CEIS)) ? 1UL : 0UL);
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}
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/**
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* @brief Indicate if the Seed Error Interrupt Status Flag is set or not
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* @rmtoll SR SEIS LL_RNG_IsActiveFlag_SEIS
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* @param RNGx RNG Instance
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* @retval State of bit (1 or 0).
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*/
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__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SEIS(const RNG_TypeDef *RNGx)
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{
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return ((READ_BIT(RNGx->SR, RNG_SR_SEIS) == (RNG_SR_SEIS)) ? 1UL : 0UL);
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}
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/**
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* @brief Clear Clock Error interrupt Status (CEIS) Flag
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* @rmtoll SR CEIS LL_RNG_ClearFlag_CEIS
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* @param RNGx RNG Instance
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* @retval None
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*/
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__STATIC_INLINE void LL_RNG_ClearFlag_CEIS(RNG_TypeDef *RNGx)
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{
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WRITE_REG(RNGx->SR, ~RNG_SR_CEIS);
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}
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/**
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* @brief Clear Seed Error interrupt Status (SEIS) Flag
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* @rmtoll SR SEIS LL_RNG_ClearFlag_SEIS
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* @param RNGx RNG Instance
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* @retval None
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*/
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__STATIC_INLINE void LL_RNG_ClearFlag_SEIS(RNG_TypeDef *RNGx)
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{
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WRITE_REG(RNGx->SR, ~RNG_SR_SEIS);
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}
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/**
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* @}
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*/
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/** @defgroup RNG_LL_EF_IT_Management IT Management
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* @{
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*/
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/**
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* @brief Enable Random Number Generator Interrupt
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* (applies for either Seed error, Clock Error or Data ready interrupts)
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* @rmtoll CR IE LL_RNG_EnableIT
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* @param RNGx RNG Instance
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* @retval None
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*/
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__STATIC_INLINE void LL_RNG_EnableIT(RNG_TypeDef *RNGx)
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{
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SET_BIT(RNGx->CR, RNG_CR_IE);
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}
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/**
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* @brief Disable Random Number Generator Interrupt
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* (applies for either Seed error, Clock Error or Data ready interrupts)
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* @rmtoll CR IE LL_RNG_DisableIT
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* @param RNGx RNG Instance
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* @retval None
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*/
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__STATIC_INLINE void LL_RNG_DisableIT(RNG_TypeDef *RNGx)
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{
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CLEAR_BIT(RNGx->CR, RNG_CR_IE);
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}
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/**
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* @brief Check if Random Number Generator Interrupt is enabled
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* (applies for either Seed error, Clock Error or Data ready interrupts)
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* @rmtoll CR IE LL_RNG_IsEnabledIT
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* @param RNGx RNG Instance
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* @retval State of bit (1 or 0).
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*/
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__STATIC_INLINE uint32_t LL_RNG_IsEnabledIT(const RNG_TypeDef *RNGx)
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{
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return ((READ_BIT(RNGx->CR, RNG_CR_IE) == (RNG_CR_IE)) ? 1UL : 0UL);
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}
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/**
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* @}
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*/
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/** @defgroup RNG_LL_EF_Data_Management Data Management
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* @{
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*/
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/**
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* @brief Return32-bit Random Number value
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* @rmtoll DR RNDATA LL_RNG_ReadRandData32
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* @param RNGx RNG Instance
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* @retval Generated 32-bit random value
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*/
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__STATIC_INLINE uint32_t LL_RNG_ReadRandData32(const RNG_TypeDef *RNGx)
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{
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return (uint32_t)(READ_REG(RNGx->DR));
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}
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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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/** @defgroup RNG_LL_EF_Init Initialization and de-initialization functions
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* @{
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*/
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ErrorStatus LL_RNG_DeInit(const RNG_TypeDef *RNGx);
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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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/**
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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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#ifdef __cplusplus
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}
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#endif
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#endif /* __STM32F4xx_LL_RNG_H */
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