/**
******************************************************************************
* @file stm32l4xx_hal_rng.h
* @author MCD Application Team
* @brief Header file of RNG HAL module.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2017 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
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32L4xx_HAL_RNG_H
#define __STM32L4xx_HAL_RNG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal_def.h"
/** @addtogroup STM32L4xx_HAL_Driver
* @{
*/
/** @addtogroup RNG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup RNG_Exported_Types RNG Exported Types
* @{
*/
#if defined(RNG_CR_CED)
/**
* @brief RNG Configuration Structure definition
*/
typedef struct
{
uint32_t ClockErrorDetection; /*!< Clock error detection */
}RNG_InitTypeDef;
#endif /* defined(RNG_CR_CED) */
/**
* @brief RNG HAL State Structure definition
*/
typedef enum
{
HAL_RNG_STATE_RESET = 0x00, /*!< RNG not yet initialized or disabled */
HAL_RNG_STATE_READY = 0x01, /*!< RNG initialized and ready for use */
HAL_RNG_STATE_BUSY = 0x02, /*!< RNG internal process is ongoing */
HAL_RNG_STATE_TIMEOUT = 0x03, /*!< RNG timeout state */
HAL_RNG_STATE_ERROR = 0x04 /*!< RNG error state */
}HAL_RNG_StateTypeDef;
/**
* @brief RNG Handle Structure definition
*/
typedef struct __RNG_HandleTypeDef
{
RNG_TypeDef *Instance; /*!< Register base address */
#if defined(RNG_CR_CED)
RNG_InitTypeDef Init; /*!< RNG configuration parameters */
#endif /* defined(RNG_CR_CED) */
HAL_LockTypeDef Lock; /*!< RNG locking object */
__IO HAL_RNG_StateTypeDef State; /*!< RNG communication state */
__IO uint32_t ErrorCode; /*!< RNG Error code */
uint32_t RandomNumber; /*!< Last Generated RNG Data */
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
void (* ReadyDataCallback)(struct __RNG_HandleTypeDef *hrng, uint32_t random32bit); /*!< RNG Data Ready Callback */
void (* ErrorCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Error Callback */
void (* MspInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp Init callback */
void (* MspDeInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp DeInit callback */
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
}RNG_HandleTypeDef;
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
/**
* @brief HAL RNG Callback ID enumeration definition
*/
typedef enum
{
HAL_RNG_ERROR_CB_ID = 0x00U, /*!< RNG Error Callback ID */
HAL_RNG_MSPINIT_CB_ID = 0x01U, /*!< RNG MspInit callback ID */
HAL_RNG_MSPDEINIT_CB_ID = 0x02U /*!< RNG MspDeInit callback ID */
} HAL_RNG_CallbackIDTypeDef;
/**
* @brief HAL RNG Callback pointer definition
*/
typedef void (*pRNG_CallbackTypeDef)(RNG_HandleTypeDef *hrng); /*!< pointer to a common RNG callback function */
typedef void (*pRNG_ReadyDataCallbackTypeDef)(RNG_HandleTypeDef * hrng, uint32_t random32bit); /*!< pointer to an RNG Data Ready specific callback function */
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup RNG_Exported_Constants RNG Exported Constants
* @{
*/
/** @defgroup RNG_Interrupt_definition RNG Interrupts Definition
* @{
*/
#define RNG_IT_DRDY RNG_SR_DRDY /*!< Data Ready interrupt */
#define RNG_IT_CEI RNG_SR_CEIS /*!< Clock error interrupt */
#define RNG_IT_SEI RNG_SR_SEIS /*!< Seed error interrupt */
/**
* @}
*/
/** @defgroup RNG_Flag_definition RNG Flags Definition
* @{
*/
#define RNG_FLAG_DRDY RNG_SR_DRDY /*!< Data ready */
#define RNG_FLAG_CECS RNG_SR_CECS /*!< Clock error current status */
#define RNG_FLAG_SECS RNG_SR_SECS /*!< Seed error current status */
/**
* @}
*/
#if defined(RNG_CR_CED)
/** @defgroup RNG_Clock_Error_Detection RNG Clock Error Detection
* @{
*/
#define RNG_CED_ENABLE ((uint32_t)0x00000000) /*!< Clock error detection enabled */
#define RNG_CED_DISABLE RNG_CR_CED /*!< Clock error detection disabled */
/**
* @}
*/
#endif /* defined(RNG_CR_CED) */
/** @defgroup RNG_Error_Definition RNG Error Definition
* @{
*/
#define HAL_RNG_ERROR_NONE ((uint32_t)0x00000000U) /*!< No error */
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
#define HAL_RNG_ERROR_INVALID_CALLBACK ((uint32_t)0x00000001U) /*!< Invalid Callback error */
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @}
*/
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/** @defgroup RNG_Exported_Macros RNG Exported Macros
* @{
*/
/** @brief Reset RNG handle state.
* @param __HANDLE__: RNG Handle
* @retval None
*/
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
#define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) do{ \
(__HANDLE__)->State = HAL_RNG_STATE_RESET; \
(__HANDLE__)->MspInitCallback = NULL; \
(__HANDLE__)->MspDeInitCallback = NULL; \
} while(0U)
#else
#define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RNG_STATE_RESET)
#endif /*USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @brief Enable the RNG peripheral.
* @param __HANDLE__: RNG Handle
* @retval None
*/
#define __HAL_RNG_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_RNGEN)
/**
* @brief Disable the RNG peripheral.
* @param __HANDLE__: RNG Handle
* @retval None
*/
#define __HAL_RNG_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_RNGEN)
/**
* @brief Check whether the specified RNG flag is set or not.
* @param __HANDLE__: RNG Handle
* @param __FLAG__: RNG flag
* This parameter can be one of the following values:
* @arg RNG_FLAG_DRDY: Data ready
* @arg RNG_FLAG_CECS: Clock error current status
* @arg RNG_FLAG_SECS: Seed error current status
* @retval The new state of __FLAG__ (SET or RESET).
*/
#define __HAL_RNG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
/**
* @brief Clear the selected RNG flag status.
* @param __HANDLE__: RNG handle
* @param __FLAG__: RNG flag to clear
* @note WARNING: This is a dummy macro for HAL code alignment,
* flags RNG_FLAG_DRDY, RNG_FLAG_CECS and RNG_FLAG_SECS are read-only.
* @retval None
*/
#define __HAL_RNG_CLEAR_FLAG(__HANDLE__, __FLAG__) /* dummy macro */
/**
* @brief Enable the RNG interrupt.
* @param __HANDLE__: RNG Handle
* @retval None
*/
#define __HAL_RNG_ENABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_IE)
/**
* @brief Disable the RNG interrupt.
* @param __HANDLE__: RNG Handle
* @retval None
*/
#define __HAL_RNG_DISABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_IE)
/**
* @brief Check whether the specified RNG interrupt has occurred or not.
* @param __HANDLE__: RNG Handle
* @param __INTERRUPT__: specifies the RNG interrupt status flag to check.
* This parameter can be one of the following values:
* @arg RNG_IT_DRDY: Data ready interrupt
* @arg RNG_IT_CEI: Clock error interrupt
* @arg RNG_IT_SEI: Seed error interrupt
* @retval The new state of __INTERRUPT__ (SET or RESET).
*/
#define __HAL_RNG_GET_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR & (__INTERRUPT__)) == (__INTERRUPT__))
/**
* @brief Clear the RNG interrupt status flags.
* @param __HANDLE__: RNG Handle
* @param __INTERRUPT__: specifies the RNG interrupt status flag to clear.
* This parameter can be one of the following values:
* @arg RNG_IT_CEI: Clock error interrupt
* @arg RNG_IT_SEI: Seed error interrupt
* @note RNG_IT_DRDY flag is read-only, reading RNG_DR register automatically clears RNG_IT_DRDY.
* @retval None
*/
#define __HAL_RNG_CLEAR_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR) = ~(__INTERRUPT__))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup RNG_Exported_Functions RNG Exported Functions
* @{
*/
/* Initialization and de-initialization functions ******************************/
/** @defgroup RNG_Exported_Functions_Group1 Initialization and de-initialization functions
* @{
*/
HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng);
HAL_StatusTypeDef HAL_RNG_DeInit (RNG_HandleTypeDef *hrng);
void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng);
void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng);
/* Callbacks Register/UnRegister functions ***********************************/
#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_RNG_RegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID, pRNG_CallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_RNG_UnRegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID);
HAL_StatusTypeDef HAL_RNG_RegisterReadyDataCallback(RNG_HandleTypeDef *hrng, pRNG_ReadyDataCallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_RNG_UnRegisterReadyDataCallback(RNG_HandleTypeDef *hrng);
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
/**
* @}
*/
/* Peripheral Control functions ************************************************/
/** @defgroup RNG_Exported_Functions_Group2 Peripheral Control functions
* @{
*/
uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef *hrng); /* Obsolete, use HAL_RNG_GenerateRandomNumber() instead */
uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef *hrng); /* Obsolete, use HAL_RNG_GenerateRandomNumber_IT() instead */
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber(RNG_HandleTypeDef *hrng, uint32_t *random32bit);
HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT(RNG_HandleTypeDef *hrng);
uint32_t HAL_RNG_ReadLastRandomNumber(RNG_HandleTypeDef *hrng);
void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng);
void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng);
void HAL_RNG_ReadyDataCallback(RNG_HandleTypeDef* hrng, uint32_t random32bit);
/**
* @}
*/
/* Peripheral State functions **************************************************/
/** @defgroup RNG_Exported_Functions_Group3 Peripheral State and Error functions
* @{
*/
HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng);
uint32_t HAL_RNG_GetError(RNG_HandleTypeDef *hrng);
/**
* @}
*/
/**
* @}
*/
/* Private types -------------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup RNG_Private_Macros RNG Private Macros
* @{
*/
#if defined(RNG_CR_CED)
/**
* @brief Verify the RNG Clock Error Detection mode.
* @param __MODE__: RNG Clock Error Detection mode
* @retval SET (__MODE__ is valid) or RESET (__MODE__ is invalid)
*/
#define IS_RNG_CED(__MODE__) (((__MODE__) == RNG_CED_ENABLE) || \
((__MODE__) == RNG_CED_DISABLE))
#endif /* defined(RNG_CR_CED) */
/**
* @}
*/
/* Private functions prototypes ----------------------------------------------*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L4xx_HAL_RNG_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
