From c76ee16b722c411327b438366e90ea1024eeeb1c Mon Sep 17 00:00:00 2001 From: heck Date: Mon, 7 Aug 2023 23:55:25 +0200 Subject: [PATCH] ATTENTION: Last few commits are NOT working. forgot to add several files to git --- Core/Inc/dma.h | 52 ++ Core/Inc/rng.h | 52 ++ Core/Src/cppmain.cc | 2 +- Core/Src/dma.c | 55 ++ Core/Src/rng.c | 85 ++ .../Inc/stm32f4xx_hal_rng.h | 361 ++++++++ .../Inc/stm32f4xx_ll_rng.h | 335 +++++++ .../Src/stm32f4xx_hal_rng.c | 867 ++++++++++++++++++ 8 files changed, 1808 insertions(+), 1 deletion(-) create mode 100644 Core/Inc/dma.h create mode 100644 Core/Inc/rng.h create mode 100644 Core/Src/dma.c create mode 100644 Core/Src/rng.c create mode 100644 Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_rng.h create mode 100644 Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rng.h create mode 100644 Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c diff --git a/Core/Inc/dma.h b/Core/Inc/dma.h new file mode 100644 index 0000000..959a5b0 --- /dev/null +++ b/Core/Inc/dma.h @@ -0,0 +1,52 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file dma.h + * @brief This file contains all the function prototypes for + * the dma.c file + ****************************************************************************** + * @attention + * + * Copyright (c) 2023 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ +/* USER CODE END Header */ +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __DMA_H__ +#define __DMA_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "main.h" + +/* DMA memory to memory transfer handles -------------------------------------*/ + +/* USER CODE BEGIN Includes */ + +/* USER CODE END Includes */ + +/* USER CODE BEGIN Private defines */ + +/* USER CODE END Private defines */ + +void MX_DMA_Init(void); + +/* USER CODE BEGIN Prototypes */ + +/* USER CODE END Prototypes */ + +#ifdef __cplusplus +} +#endif + +#endif /* __DMA_H__ */ + diff --git a/Core/Inc/rng.h b/Core/Inc/rng.h new file mode 100644 index 0000000..831b180 --- /dev/null +++ b/Core/Inc/rng.h @@ -0,0 +1,52 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file rng.h + * @brief This file contains all the function prototypes for + * the rng.c file + ****************************************************************************** + * @attention + * + * Copyright (c) 2023 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ +/* USER CODE END Header */ +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __RNG_H__ +#define __RNG_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "main.h" + +/* USER CODE BEGIN Includes */ + +/* USER CODE END Includes */ + +extern RNG_HandleTypeDef hrng; + +/* USER CODE BEGIN Private defines */ + +/* USER CODE END Private defines */ + +void MX_RNG_Init(void); + +/* USER CODE BEGIN Prototypes */ + +/* USER CODE END Prototypes */ + +#ifdef __cplusplus +} +#endif + +#endif /* __RNG_H__ */ + diff --git a/Core/Src/cppmain.cc b/Core/Src/cppmain.cc index f7ef6b4..5f812a5 100644 --- a/Core/Src/cppmain.cc +++ b/Core/Src/cppmain.cc @@ -174,7 +174,7 @@ void heck_cppmain(void) // HAL_DAC_Start(&hdac, DAC_CHANNEL_2); HAL_TIM_Base_Start_IT(&htim2); HAL_TIM_Base_Start_IT(&htim7); - + HAL_RNG_GenerateRandomNumber(hrng) HAL_TIM_Base_Start(&htim6); while (true) { Heck::log("huhu"); diff --git a/Core/Src/dma.c b/Core/Src/dma.c new file mode 100644 index 0000000..b7e82be --- /dev/null +++ b/Core/Src/dma.c @@ -0,0 +1,55 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file dma.c + * @brief This file provides code for the configuration + * of all the requested memory to memory DMA transfers. + ****************************************************************************** + * @attention + * + * Copyright (c) 2023 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ +/* USER CODE END Header */ + +/* Includes ------------------------------------------------------------------*/ +#include "dma.h" + +/* USER CODE BEGIN 0 */ + +/* USER CODE END 0 */ + +/*----------------------------------------------------------------------------*/ +/* Configure DMA */ +/*----------------------------------------------------------------------------*/ + +/* USER CODE BEGIN 1 */ + +/* USER CODE END 1 */ + +/** + * Enable DMA controller clock + */ +void MX_DMA_Init(void) +{ + + /* DMA controller clock enable */ + __HAL_RCC_DMA1_CLK_ENABLE(); + + /* DMA interrupt init */ + /* DMA1_Stream5_IRQn interrupt configuration */ + HAL_NVIC_SetPriority(DMA1_Stream5_IRQn, 5, 0); + HAL_NVIC_EnableIRQ(DMA1_Stream5_IRQn); + +} + +/* USER CODE BEGIN 2 */ + +/* USER CODE END 2 */ + diff --git a/Core/Src/rng.c b/Core/Src/rng.c new file mode 100644 index 0000000..b826afe --- /dev/null +++ b/Core/Src/rng.c @@ -0,0 +1,85 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file rng.c + * @brief This file provides code for the configuration + * of the RNG instances. + ****************************************************************************** + * @attention + * + * Copyright (c) 2023 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ +/* USER CODE END Header */ +/* Includes ------------------------------------------------------------------*/ +#include "rng.h" + +/* USER CODE BEGIN 0 */ + +/* USER CODE END 0 */ + +RNG_HandleTypeDef hrng; + +/* RNG init function */ +void MX_RNG_Init(void) +{ + + /* USER CODE BEGIN RNG_Init 0 */ + + /* USER CODE END RNG_Init 0 */ + + /* USER CODE BEGIN RNG_Init 1 */ + + /* USER CODE END RNG_Init 1 */ + hrng.Instance = RNG; + if (HAL_RNG_Init(&hrng) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN RNG_Init 2 */ + + /* USER CODE END RNG_Init 2 */ + +} + +void HAL_RNG_MspInit(RNG_HandleTypeDef* rngHandle) +{ + + if(rngHandle->Instance==RNG) + { + /* USER CODE BEGIN RNG_MspInit 0 */ + + /* USER CODE END RNG_MspInit 0 */ + /* RNG clock enable */ + __HAL_RCC_RNG_CLK_ENABLE(); + /* USER CODE BEGIN RNG_MspInit 1 */ + + /* USER CODE END RNG_MspInit 1 */ + } +} + +void HAL_RNG_MspDeInit(RNG_HandleTypeDef* rngHandle) +{ + + if(rngHandle->Instance==RNG) + { + /* USER CODE BEGIN RNG_MspDeInit 0 */ + + /* USER CODE END RNG_MspDeInit 0 */ + /* Peripheral clock disable */ + __HAL_RCC_RNG_CLK_DISABLE(); + /* USER CODE BEGIN RNG_MspDeInit 1 */ + + /* USER CODE END RNG_MspDeInit 1 */ + } +} + +/* USER CODE BEGIN 1 */ + +/* USER CODE END 1 */ diff --git a/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_rng.h b/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_rng.h new file mode 100644 index 0000000..fe0a911 --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_rng.h @@ -0,0 +1,361 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_rng.h + * @author MCD Application Team + * @brief Header file of RNG HAL module. + ****************************************************************************** + * @attention + * + * Copyright (c) 2016 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef STM32F4xx_HAL_RNG_H +#define STM32F4xx_HAL_RNG_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx_hal_def.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ + +#if defined (RNG) + +/** @defgroup RNG RNG + * @brief RNG HAL module driver + * @{ + */ + +/* Exported types ------------------------------------------------------------*/ + +/** @defgroup RNG_Exported_Types RNG Exported Types + * @{ + */ + +/** @defgroup RNG_Exported_Types_Group1 RNG Init Structure definition + * @{ + */ + +/** + * @} + */ + +/** @defgroup RNG_Exported_Types_Group2 RNG State Structure definition + * @{ + */ +typedef enum +{ + HAL_RNG_STATE_RESET = 0x00U, /*!< RNG not yet initialized or disabled */ + HAL_RNG_STATE_READY = 0x01U, /*!< RNG initialized and ready for use */ + HAL_RNG_STATE_BUSY = 0x02U, /*!< RNG internal process is ongoing */ + HAL_RNG_STATE_TIMEOUT = 0x03U, /*!< RNG timeout state */ + HAL_RNG_STATE_ERROR = 0x04U /*!< RNG error state */ + +} HAL_RNG_StateTypeDef; + +/** + * @} + */ + +/** @defgroup RNG_Exported_Types_Group3 RNG Handle Structure definition + * @{ + */ +#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) +typedef struct __RNG_HandleTypeDef +#else +typedef struct +#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ +{ + RNG_TypeDef *Instance; /*!< Register base address */ + + 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_Exported_Constants_Group1 RNG Interrupt 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_Exported_Constants_Group2 RNG Flag 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 */ +/** + * @} + */ + +/** @defgroup RNG_Error_Definition RNG Error Definition + * @{ + */ +#define HAL_RNG_ERROR_NONE 0x00000000U /*!< No error */ +#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) +#define HAL_RNG_ERROR_INVALID_CALLBACK 0x00000001U /*!< Invalid Callback error */ +#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ +#define HAL_RNG_ERROR_TIMEOUT 0x00000002U /*!< Timeout error */ +#define HAL_RNG_ERROR_BUSY 0x00000004U /*!< Busy error */ +#define HAL_RNG_ERROR_SEED 0x00000008U /*!< Seed error */ +#define HAL_RNG_ERROR_CLOCK 0x00000010U /*!< Clock error */ +/** + * @} + */ + +/** + * @} + */ + +/* 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 Enables the RNG peripheral. + * @param __HANDLE__ RNG Handle + * @retval None + */ +#define __HAL_RNG_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_RNGEN) + +/** + * @brief Disables the RNG peripheral. + * @param __HANDLE__ RNG Handle + * @retval None + */ +#define __HAL_RNG_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_RNGEN) + +/** + * @brief Check the selected RNG flag status. + * @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 Clears 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 Enables the RNG interrupts. + * @param __HANDLE__ RNG Handle + * @retval None + */ +#define __HAL_RNG_ENABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_IE) + +/** + * @brief Disables the RNG interrupts. + * @param __HANDLE__ RNG Handle + * @retval None + */ +#define __HAL_RNG_DISABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_IE) + +/** + * @brief Checks 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 + * @{ + */ + +/** @defgroup RNG_Exported_Functions_Group1 Initialization and configuration 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 */ + +/** + * @} + */ + +/** @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); + +/** + * @} + */ + +/** @defgroup RNG_Exported_Functions_Group3 Peripheral State functions + * @{ + */ +HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng); +uint32_t HAL_RNG_GetError(RNG_HandleTypeDef *hrng); +/** + * @} + */ + +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +/** @defgroup RNG_Private_Macros RNG Private Macros + * @{ + */ +#define IS_RNG_IT(IT) (((IT) == RNG_IT_CEI) || \ + ((IT) == RNG_IT_SEI)) + +#define IS_RNG_FLAG(FLAG) (((FLAG) == RNG_FLAG_DRDY) || \ + ((FLAG) == RNG_FLAG_CECS) || \ + ((FLAG) == RNG_FLAG_SECS)) + +/** + * @} + */ + +/** + * @} + */ + +#endif /* RNG */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + + +#endif /* STM32F4xx_HAL_RNG_H */ + diff --git a/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rng.h b/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rng.h new file mode 100644 index 0000000..24e75aa --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rng.h @@ -0,0 +1,335 @@ +/** + ****************************************************************************** + * @file stm32f4xx_ll_rng.h + * @author MCD Application Team + * @brief Header file of RNG LL module. + ****************************************************************************** + * @attention + * + * Copyright (c) 2016 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef STM32F4xx_LL_RNG_H +#define STM32F4xx_LL_RNG_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx.h" + +/** @addtogroup STM32F4xx_LL_Driver + * @{ + */ + +#if defined (RNG) + +/** @defgroup RNG_LL RNG + * @{ + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private constants ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/** @defgroup RNG_LL_Exported_Constants RNG Exported Constants + * @{ + */ + + +/** @defgroup RNG_LL_EC_GET_FLAG Get Flags Defines + * @brief Flags defines which can be used with LL_RNG_ReadReg function + * @{ + */ +#define LL_RNG_SR_DRDY RNG_SR_DRDY /*!< Register contains valid random data */ +#define LL_RNG_SR_CECS RNG_SR_CECS /*!< Clock error current status */ +#define LL_RNG_SR_SECS RNG_SR_SECS /*!< Seed error current status */ +#define LL_RNG_SR_CEIS RNG_SR_CEIS /*!< Clock error interrupt status */ +#define LL_RNG_SR_SEIS RNG_SR_SEIS /*!< Seed error interrupt status */ +/** + * @} + */ + +/** @defgroup RNG_LL_EC_IT IT Defines + * @brief IT defines which can be used with LL_RNG_ReadReg and LL_RNG_WriteReg macros + * @{ + */ +#define LL_RNG_CR_IE RNG_CR_IE /*!< RNG Interrupt enable */ +/** + * @} + */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup RNG_LL_Exported_Macros RNG Exported Macros + * @{ + */ + +/** @defgroup RNG_LL_EM_WRITE_READ Common Write and read registers Macros + * @{ + */ + +/** + * @brief Write a value in RNG register + * @param __INSTANCE__ RNG Instance + * @param __REG__ Register to be written + * @param __VALUE__ Value to be written in the register + * @retval None + */ +#define LL_RNG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) + +/** + * @brief Read a value in RNG register + * @param __INSTANCE__ RNG Instance + * @param __REG__ Register to be read + * @retval Register value + */ +#define LL_RNG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) +/** + * @} + */ + +/** + * @} + */ + + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup RNG_LL_Exported_Functions RNG Exported Functions + * @{ + */ +/** @defgroup RNG_LL_EF_Configuration RNG Configuration functions + * @{ + */ + +/** + * @brief Enable Random Number Generation + * @rmtoll CR RNGEN LL_RNG_Enable + * @param RNGx RNG Instance + * @retval None + */ +__STATIC_INLINE void LL_RNG_Enable(RNG_TypeDef *RNGx) +{ + SET_BIT(RNGx->CR, RNG_CR_RNGEN); +} + +/** + * @brief Disable Random Number Generation + * @rmtoll CR RNGEN LL_RNG_Disable + * @param RNGx RNG Instance + * @retval None + */ +__STATIC_INLINE void LL_RNG_Disable(RNG_TypeDef *RNGx) +{ + CLEAR_BIT(RNGx->CR, RNG_CR_RNGEN); +} + +/** + * @brief Check if Random Number Generator is enabled + * @rmtoll CR RNGEN LL_RNG_IsEnabled + * @param RNGx RNG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_RNG_IsEnabled(RNG_TypeDef *RNGx) +{ + return ((READ_BIT(RNGx->CR, RNG_CR_RNGEN) == (RNG_CR_RNGEN)) ? 1UL : 0UL); +} + +/** + * @} + */ + +/** @defgroup RNG_LL_EF_FLAG_Management FLAG Management + * @{ + */ + +/** + * @brief Indicate if the RNG Data ready Flag is set or not + * @rmtoll SR DRDY LL_RNG_IsActiveFlag_DRDY + * @param RNGx RNG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_DRDY(RNG_TypeDef *RNGx) +{ + return ((READ_BIT(RNGx->SR, RNG_SR_DRDY) == (RNG_SR_DRDY)) ? 1UL : 0UL); +} + +/** + * @brief Indicate if the Clock Error Current Status Flag is set or not + * @rmtoll SR CECS LL_RNG_IsActiveFlag_CECS + * @param RNGx RNG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CECS(RNG_TypeDef *RNGx) +{ + return ((READ_BIT(RNGx->SR, RNG_SR_CECS) == (RNG_SR_CECS)) ? 1UL : 0UL); +} + +/** + * @brief Indicate if the Seed Error Current Status Flag is set or not + * @rmtoll SR SECS LL_RNG_IsActiveFlag_SECS + * @param RNGx RNG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SECS(RNG_TypeDef *RNGx) +{ + return ((READ_BIT(RNGx->SR, RNG_SR_SECS) == (RNG_SR_SECS)) ? 1UL : 0UL); +} + +/** + * @brief Indicate if the Clock Error Interrupt Status Flag is set or not + * @rmtoll SR CEIS LL_RNG_IsActiveFlag_CEIS + * @param RNGx RNG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CEIS(RNG_TypeDef *RNGx) +{ + return ((READ_BIT(RNGx->SR, RNG_SR_CEIS) == (RNG_SR_CEIS)) ? 1UL : 0UL); +} + +/** + * @brief Indicate if the Seed Error Interrupt Status Flag is set or not + * @rmtoll SR SEIS LL_RNG_IsActiveFlag_SEIS + * @param RNGx RNG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SEIS(RNG_TypeDef *RNGx) +{ + return ((READ_BIT(RNGx->SR, RNG_SR_SEIS) == (RNG_SR_SEIS)) ? 1UL : 0UL); +} + +/** + * @brief Clear Clock Error interrupt Status (CEIS) Flag + * @rmtoll SR CEIS LL_RNG_ClearFlag_CEIS + * @param RNGx RNG Instance + * @retval None + */ +__STATIC_INLINE void LL_RNG_ClearFlag_CEIS(RNG_TypeDef *RNGx) +{ + WRITE_REG(RNGx->SR, ~RNG_SR_CEIS); +} + +/** + * @brief Clear Seed Error interrupt Status (SEIS) Flag + * @rmtoll SR SEIS LL_RNG_ClearFlag_SEIS + * @param RNGx RNG Instance + * @retval None + */ +__STATIC_INLINE void LL_RNG_ClearFlag_SEIS(RNG_TypeDef *RNGx) +{ + WRITE_REG(RNGx->SR, ~RNG_SR_SEIS); +} + +/** + * @} + */ + +/** @defgroup RNG_LL_EF_IT_Management IT Management + * @{ + */ + +/** + * @brief Enable Random Number Generator Interrupt + * (applies for either Seed error, Clock Error or Data ready interrupts) + * @rmtoll CR IE LL_RNG_EnableIT + * @param RNGx RNG Instance + * @retval None + */ +__STATIC_INLINE void LL_RNG_EnableIT(RNG_TypeDef *RNGx) +{ + SET_BIT(RNGx->CR, RNG_CR_IE); +} + +/** + * @brief Disable Random Number Generator Interrupt + * (applies for either Seed error, Clock Error or Data ready interrupts) + * @rmtoll CR IE LL_RNG_DisableIT + * @param RNGx RNG Instance + * @retval None + */ +__STATIC_INLINE void LL_RNG_DisableIT(RNG_TypeDef *RNGx) +{ + CLEAR_BIT(RNGx->CR, RNG_CR_IE); +} + +/** + * @brief Check if Random Number Generator Interrupt is enabled + * (applies for either Seed error, Clock Error or Data ready interrupts) + * @rmtoll CR IE LL_RNG_IsEnabledIT + * @param RNGx RNG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_RNG_IsEnabledIT(RNG_TypeDef *RNGx) +{ + return ((READ_BIT(RNGx->CR, RNG_CR_IE) == (RNG_CR_IE)) ? 1UL : 0UL); +} + +/** + * @} + */ + +/** @defgroup RNG_LL_EF_Data_Management Data Management + * @{ + */ + +/** + * @brief Return32-bit Random Number value + * @rmtoll DR RNDATA LL_RNG_ReadRandData32 + * @param RNGx RNG Instance + * @retval Generated 32-bit random value + */ +__STATIC_INLINE uint32_t LL_RNG_ReadRandData32(RNG_TypeDef *RNGx) +{ + return (uint32_t)(READ_REG(RNGx->DR)); +} + +/** + * @} + */ + +#if defined(USE_FULL_LL_DRIVER) +/** @defgroup RNG_LL_EF_Init Initialization and de-initialization functions + * @{ + */ +ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx); + +/** + * @} + */ +#endif /* USE_FULL_LL_DRIVER */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* RNG */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F4xx_LL_RNG_H */ + diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c new file mode 100644 index 0000000..cbfd32b --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c @@ -0,0 +1,867 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_rng.c + * @author MCD Application Team + * @brief RNG HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the Random Number Generator (RNG) peripheral: + * + Initialization and configuration functions + * + Peripheral Control functions + * + Peripheral State functions + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2016 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + [..] + The RNG HAL driver can be used as follows: + + (#) Enable the RNG controller clock using __HAL_RCC_RNG_CLK_ENABLE() macro + in HAL_RNG_MspInit(). + (#) Activate the RNG peripheral using HAL_RNG_Init() function. + (#) Wait until the 32 bit Random Number Generator contains a valid + random data using (polling/interrupt) mode. + (#) Get the 32 bit random number using HAL_RNG_GenerateRandomNumber() function. + + ##### Callback registration ##### + ================================== + + [..] + The compilation define USE_HAL_RNG_REGISTER_CALLBACKS when set to 1 + allows the user to configure dynamically the driver callbacks. + + [..] + Use Function HAL_RNG_RegisterCallback() to register a user callback. + Function HAL_RNG_RegisterCallback() allows to register following callbacks: + (+) ErrorCallback : RNG Error Callback. + (+) MspInitCallback : RNG MspInit. + (+) MspDeInitCallback : RNG MspDeInit. + This function takes as parameters the HAL peripheral handle, the Callback ID + and a pointer to the user callback function. + + [..] + Use function HAL_RNG_UnRegisterCallback() to reset a callback to the default + weak (surcharged) function. + HAL_RNG_UnRegisterCallback() takes as parameters the HAL peripheral handle, + and the Callback ID. + This function allows to reset following callbacks: + (+) ErrorCallback : RNG Error Callback. + (+) MspInitCallback : RNG MspInit. + (+) MspDeInitCallback : RNG MspDeInit. + + [..] + For specific callback ReadyDataCallback, use dedicated register callbacks: + respectively HAL_RNG_RegisterReadyDataCallback() , HAL_RNG_UnRegisterReadyDataCallback(). + + [..] + By default, after the HAL_RNG_Init() and when the state is HAL_RNG_STATE_RESET + all callbacks are set to the corresponding weak (surcharged) functions: + example HAL_RNG_ErrorCallback(). + Exception done for MspInit and MspDeInit functions that are respectively + reset to the legacy weak (surcharged) functions in the HAL_RNG_Init() + and HAL_RNG_DeInit() only when these callbacks are null (not registered beforehand). + If not, MspInit or MspDeInit are not null, the HAL_RNG_Init() and HAL_RNG_DeInit() + keep and use the user MspInit/MspDeInit callbacks (registered beforehand). + + [..] + Callbacks can be registered/unregistered in HAL_RNG_STATE_READY state only. + Exception done MspInit/MspDeInit that can be registered/unregistered + in HAL_RNG_STATE_READY or HAL_RNG_STATE_RESET state, thus registered (user) + MspInit/DeInit callbacks can be used during the Init/DeInit. + In that case first register the MspInit/MspDeInit user callbacks + using HAL_RNG_RegisterCallback() before calling HAL_RNG_DeInit() + or HAL_RNG_Init() function. + + [..] + When The compilation define USE_HAL_RNG_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registration feature is not available + and weak (surcharged) callbacks are used. + + @endverbatim + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_HAL_Driver + * @{ + */ + +#if defined (RNG) + +/** @addtogroup RNG + * @brief RNG HAL module driver. + * @{ + */ + +#ifdef HAL_RNG_MODULE_ENABLED + +/* Private types -------------------------------------------------------------*/ +/* Private defines -----------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private constants ---------------------------------------------------------*/ +/** @defgroup RNG_Private_Constants RNG Private Constants + * @{ + */ +#define RNG_TIMEOUT_VALUE 2U +/** + * @} + */ +/* Private macros ------------------------------------------------------------*/ +/* Private functions prototypes ----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ + +/** @addtogroup RNG_Exported_Functions + * @{ + */ + +/** @addtogroup RNG_Exported_Functions_Group1 + * @brief Initialization and configuration functions + * +@verbatim + =============================================================================== + ##### Initialization and configuration functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Initialize the RNG according to the specified parameters + in the RNG_InitTypeDef and create the associated handle + (+) DeInitialize the RNG peripheral + (+) Initialize the RNG MSP + (+) DeInitialize RNG MSP + +@endverbatim + * @{ + */ + +/** + * @brief Initializes the RNG peripheral and creates the associated handle. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng) +{ + /* Check the RNG handle allocation */ + if (hrng == NULL) + { + return HAL_ERROR; + } + /* Check the parameters */ + assert_param(IS_RNG_ALL_INSTANCE(hrng->Instance)); + +#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) + if (hrng->State == HAL_RNG_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hrng->Lock = HAL_UNLOCKED; + + hrng->ReadyDataCallback = HAL_RNG_ReadyDataCallback; /* Legacy weak ReadyDataCallback */ + hrng->ErrorCallback = HAL_RNG_ErrorCallback; /* Legacy weak ErrorCallback */ + + if (hrng->MspInitCallback == NULL) + { + hrng->MspInitCallback = HAL_RNG_MspInit; /* Legacy weak MspInit */ + } + + /* Init the low level hardware */ + hrng->MspInitCallback(hrng); + } +#else + if (hrng->State == HAL_RNG_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hrng->Lock = HAL_UNLOCKED; + + /* Init the low level hardware */ + HAL_RNG_MspInit(hrng); + } +#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ + + /* Change RNG peripheral state */ + hrng->State = HAL_RNG_STATE_BUSY; + + + /* Enable the RNG Peripheral */ + __HAL_RNG_ENABLE(hrng); + + /* Initialize the RNG state */ + hrng->State = HAL_RNG_STATE_READY; + + /* Initialise the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_NONE; + + /* Return function status */ + return HAL_OK; +} + +/** + * @brief DeInitializes the RNG peripheral. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng) +{ + /* Check the RNG handle allocation */ + if (hrng == NULL) + { + return HAL_ERROR; + } + + /* Disable the RNG Peripheral */ + CLEAR_BIT(hrng->Instance->CR, RNG_CR_IE | RNG_CR_RNGEN); + + /* Clear RNG interrupt status flags */ + CLEAR_BIT(hrng->Instance->SR, RNG_SR_CEIS | RNG_SR_SEIS); + +#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) + if (hrng->MspDeInitCallback == NULL) + { + hrng->MspDeInitCallback = HAL_RNG_MspDeInit; /* Legacy weak MspDeInit */ + } + + /* DeInit the low level hardware */ + hrng->MspDeInitCallback(hrng); +#else + /* DeInit the low level hardware */ + HAL_RNG_MspDeInit(hrng); +#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ + + /* Update the RNG state */ + hrng->State = HAL_RNG_STATE_RESET; + + /* Initialise the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_NONE; + + /* Release Lock */ + __HAL_UNLOCK(hrng); + + /* Return the function status */ + return HAL_OK; +} + +/** + * @brief Initializes the RNG MSP. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval None + */ +__weak void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hrng); + /* NOTE : This function should not be modified. When the callback is needed, + function HAL_RNG_MspInit must be implemented in the user file. + */ +} + +/** + * @brief DeInitializes the RNG MSP. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval None + */ +__weak void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hrng); + /* NOTE : This function should not be modified. When the callback is needed, + function HAL_RNG_MspDeInit must be implemented in the user file. + */ +} + +#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) +/** + * @brief Register a User RNG Callback + * To be used instead of the weak predefined callback + * @param hrng RNG handle + * @param CallbackID ID of the callback to be registered + * This parameter can be one of the following values: + * @arg @ref HAL_RNG_ERROR_CB_ID Error callback ID + * @arg @ref HAL_RNG_MSPINIT_CB_ID MspInit callback ID + * @arg @ref HAL_RNG_MSPDEINIT_CB_ID MspDeInit callback ID + * @param pCallback pointer to the Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RNG_RegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID, + pRNG_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + return HAL_ERROR; + } + /* Process locked */ + __HAL_LOCK(hrng); + + if (HAL_RNG_STATE_READY == hrng->State) + { + switch (CallbackID) + { + case HAL_RNG_ERROR_CB_ID : + hrng->ErrorCallback = pCallback; + break; + + case HAL_RNG_MSPINIT_CB_ID : + hrng->MspInitCallback = pCallback; + break; + + case HAL_RNG_MSPDEINIT_CB_ID : + hrng->MspDeInitCallback = pCallback; + break; + + default : + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_RNG_STATE_RESET == hrng->State) + { + switch (CallbackID) + { + case HAL_RNG_MSPINIT_CB_ID : + hrng->MspInitCallback = pCallback; + break; + + case HAL_RNG_MSPDEINIT_CB_ID : + hrng->MspDeInitCallback = pCallback; + break; + + default : + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hrng); + return status; +} + +/** + * @brief Unregister an RNG Callback + * RNG callback is redirected to the weak predefined callback + * @param hrng RNG handle + * @param CallbackID ID of the callback to be unregistered + * This parameter can be one of the following values: + * @arg @ref HAL_RNG_ERROR_CB_ID Error callback ID + * @arg @ref HAL_RNG_MSPINIT_CB_ID MspInit callback ID + * @arg @ref HAL_RNG_MSPDEINIT_CB_ID MspDeInit callback ID + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RNG_UnRegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process locked */ + __HAL_LOCK(hrng); + + if (HAL_RNG_STATE_READY == hrng->State) + { + switch (CallbackID) + { + case HAL_RNG_ERROR_CB_ID : + hrng->ErrorCallback = HAL_RNG_ErrorCallback; /* Legacy weak ErrorCallback */ + break; + + case HAL_RNG_MSPINIT_CB_ID : + hrng->MspInitCallback = HAL_RNG_MspInit; /* Legacy weak MspInit */ + break; + + case HAL_RNG_MSPDEINIT_CB_ID : + hrng->MspDeInitCallback = HAL_RNG_MspDeInit; /* Legacy weak MspDeInit */ + break; + + default : + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else if (HAL_RNG_STATE_RESET == hrng->State) + { + switch (CallbackID) + { + case HAL_RNG_MSPINIT_CB_ID : + hrng->MspInitCallback = HAL_RNG_MspInit; /* Legacy weak MspInit */ + break; + + case HAL_RNG_MSPDEINIT_CB_ID : + hrng->MspDeInitCallback = HAL_RNG_MspDeInit; /* Legacy weak MspInit */ + break; + + default : + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + break; + } + } + else + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hrng); + return status; +} + +/** + * @brief Register Data Ready RNG Callback + * To be used instead of the weak HAL_RNG_ReadyDataCallback() predefined callback + * @param hrng RNG handle + * @param pCallback pointer to the Data Ready Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RNG_RegisterReadyDataCallback(RNG_HandleTypeDef *hrng, pRNG_ReadyDataCallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + return HAL_ERROR; + } + /* Process locked */ + __HAL_LOCK(hrng); + + if (HAL_RNG_STATE_READY == hrng->State) + { + hrng->ReadyDataCallback = pCallback; + } + else + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hrng); + return status; +} + +/** + * @brief UnRegister the Data Ready RNG Callback + * Data Ready RNG Callback is redirected to the weak HAL_RNG_ReadyDataCallback() predefined callback + * @param hrng RNG handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RNG_UnRegisterReadyDataCallback(RNG_HandleTypeDef *hrng) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process locked */ + __HAL_LOCK(hrng); + + if (HAL_RNG_STATE_READY == hrng->State) + { + hrng->ReadyDataCallback = HAL_RNG_ReadyDataCallback; /* Legacy weak ReadyDataCallback */ + } + else + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_INVALID_CALLBACK; + /* Return error status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hrng); + return status; +} + +#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ + +/** + * @} + */ + +/** @addtogroup RNG_Exported_Functions_Group2 + * @brief Peripheral Control functions + * +@verbatim + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Get the 32 bit Random number + (+) Get the 32 bit Random number with interrupt enabled + (+) Handle RNG interrupt request + +@endverbatim + * @{ + */ + +/** + * @brief Generates a 32-bit random number. + * @note Each time the random number data is read the RNG_FLAG_DRDY flag + * is automatically cleared. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @param random32bit pointer to generated random number variable if successful. + * @retval HAL status + */ + +HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber(RNG_HandleTypeDef *hrng, uint32_t *random32bit) +{ + uint32_t tickstart; + HAL_StatusTypeDef status = HAL_OK; + + /* Process Locked */ + __HAL_LOCK(hrng); + + /* Check RNG peripheral state */ + if (hrng->State == HAL_RNG_STATE_READY) + { + /* Change RNG peripheral state */ + hrng->State = HAL_RNG_STATE_BUSY; + + /* Get tick */ + tickstart = HAL_GetTick(); + + /* Check if data register contains valid random data */ + while (__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) == RESET) + { + if ((HAL_GetTick() - tickstart) > RNG_TIMEOUT_VALUE) + { + /* New check to avoid false timeout detection in case of preemption */ + if (__HAL_RNG_GET_FLAG(hrng, RNG_FLAG_DRDY) == RESET) + { + hrng->State = HAL_RNG_STATE_READY; + hrng->ErrorCode = HAL_RNG_ERROR_TIMEOUT; + /* Process Unlocked */ + __HAL_UNLOCK(hrng); + return HAL_ERROR; + } + } + } + + /* Get a 32bit Random number */ + hrng->RandomNumber = hrng->Instance->DR; + *random32bit = hrng->RandomNumber; + + hrng->State = HAL_RNG_STATE_READY; + } + else + { + hrng->ErrorCode = HAL_RNG_ERROR_BUSY; + status = HAL_ERROR; + } + + /* Process Unlocked */ + __HAL_UNLOCK(hrng); + + return status; +} + +/** + * @brief Generates a 32-bit random number in interrupt mode. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT(RNG_HandleTypeDef *hrng) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process Locked */ + __HAL_LOCK(hrng); + + /* Check RNG peripheral state */ + if (hrng->State == HAL_RNG_STATE_READY) + { + /* Change RNG peripheral state */ + hrng->State = HAL_RNG_STATE_BUSY; + + /* Enable the RNG Interrupts: Data Ready, Clock error, Seed error */ + __HAL_RNG_ENABLE_IT(hrng); + } + else + { + /* Process Unlocked */ + __HAL_UNLOCK(hrng); + + hrng->ErrorCode = HAL_RNG_ERROR_BUSY; + status = HAL_ERROR; + } + + return status; +} + +/** + * @brief Returns generated random number in polling mode (Obsolete) + * Use HAL_RNG_GenerateRandomNumber() API instead. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval Random value + */ +uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef *hrng) +{ + if (HAL_RNG_GenerateRandomNumber(hrng, &(hrng->RandomNumber)) == HAL_OK) + { + return hrng->RandomNumber; + } + else + { + return 0U; + } +} + +/** + * @brief Returns a 32-bit random number with interrupt enabled (Obsolete), + * Use HAL_RNG_GenerateRandomNumber_IT() API instead. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval 32-bit random number + */ +uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef *hrng) +{ + uint32_t random32bit = 0U; + + /* Process locked */ + __HAL_LOCK(hrng); + + /* Change RNG peripheral state */ + hrng->State = HAL_RNG_STATE_BUSY; + + /* Get a 32bit Random number */ + random32bit = hrng->Instance->DR; + + /* Enable the RNG Interrupts: Data Ready, Clock error, Seed error */ + __HAL_RNG_ENABLE_IT(hrng); + + /* Return the 32 bit random number */ + return random32bit; +} + +/** + * @brief Handles RNG interrupt request. + * @note In the case of a clock error, the RNG is no more able to generate + * random numbers because the PLL48CLK clock is not correct. User has + * to check that the clock controller is correctly configured to provide + * the RNG clock and clear the CEIS bit using __HAL_RNG_CLEAR_IT(). + * The clock error has no impact on the previously generated + * random numbers, and the RNG_DR register contents can be used. + * @note In the case of a seed error, the generation of random numbers is + * interrupted as long as the SECS bit is '1'. If a number is + * available in the RNG_DR register, it must not be used because it may + * not have enough entropy. In this case, it is recommended to clear the + * SEIS bit using __HAL_RNG_CLEAR_IT(), then disable and enable + * the RNG peripheral to reinitialize and restart the RNG. + * @note User-written HAL_RNG_ErrorCallback() API is called once whether SEIS + * or CEIS are set. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval None + + */ +void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng) +{ + uint32_t rngclockerror = 0U; + + /* RNG clock error interrupt occurred */ + if (__HAL_RNG_GET_IT(hrng, RNG_IT_CEI) != RESET) + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_CLOCK; + rngclockerror = 1U; + } + else if (__HAL_RNG_GET_IT(hrng, RNG_IT_SEI) != RESET) + { + /* Update the error code */ + hrng->ErrorCode = HAL_RNG_ERROR_SEED; + rngclockerror = 1U; + } + else + { + /* Nothing to do */ + } + + if (rngclockerror == 1U) + { + /* Change RNG peripheral state */ + hrng->State = HAL_RNG_STATE_ERROR; + +#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) + /* Call registered Error callback */ + hrng->ErrorCallback(hrng); +#else + /* Call legacy weak Error callback */ + HAL_RNG_ErrorCallback(hrng); +#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ + + /* Clear the clock error flag */ + __HAL_RNG_CLEAR_IT(hrng, RNG_IT_CEI | RNG_IT_SEI); + + return; + } + + /* Check RNG data ready interrupt occurred */ + if (__HAL_RNG_GET_IT(hrng, RNG_IT_DRDY) != RESET) + { + /* Generate random number once, so disable the IT */ + __HAL_RNG_DISABLE_IT(hrng); + + /* Get the 32bit Random number (DRDY flag automatically cleared) */ + hrng->RandomNumber = hrng->Instance->DR; + + if (hrng->State != HAL_RNG_STATE_ERROR) + { + /* Change RNG peripheral state */ + hrng->State = HAL_RNG_STATE_READY; + /* Process Unlocked */ + __HAL_UNLOCK(hrng); + +#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) + /* Call registered Data Ready callback */ + hrng->ReadyDataCallback(hrng, hrng->RandomNumber); +#else + /* Call legacy weak Data Ready callback */ + HAL_RNG_ReadyDataCallback(hrng, hrng->RandomNumber); +#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ + } + } +} + +/** + * @brief Read latest generated random number. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval random value + */ +uint32_t HAL_RNG_ReadLastRandomNumber(RNG_HandleTypeDef *hrng) +{ + return (hrng->RandomNumber); +} + +/** + * @brief Data Ready callback in non-blocking mode. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @param random32bit generated random number. + * @retval None + */ +__weak void HAL_RNG_ReadyDataCallback(RNG_HandleTypeDef *hrng, uint32_t random32bit) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hrng); + UNUSED(random32bit); + /* NOTE : This function should not be modified. When the callback is needed, + function HAL_RNG_ReadyDataCallback must be implemented in the user file. + */ +} + +/** + * @brief RNG error callbacks. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval None + */ +__weak void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hrng); + /* NOTE : This function should not be modified. When the callback is needed, + function HAL_RNG_ErrorCallback must be implemented in the user file. + */ +} +/** + * @} + */ + + +/** @addtogroup RNG_Exported_Functions_Group3 + * @brief Peripheral State functions + * +@verbatim + =============================================================================== + ##### Peripheral State functions ##### + =============================================================================== + [..] + This subsection permits to get in run-time the status of the peripheral + and the data flow. + +@endverbatim + * @{ + */ + +/** + * @brief Returns the RNG state. + * @param hrng pointer to a RNG_HandleTypeDef structure that contains + * the configuration information for RNG. + * @retval HAL state + */ +HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng) +{ + return hrng->State; +} + +/** + * @brief Return the RNG handle error code. + * @param hrng: pointer to a RNG_HandleTypeDef structure. + * @retval RNG Error Code + */ +uint32_t HAL_RNG_GetError(RNG_HandleTypeDef *hrng) +{ + /* Return RNG Error Code */ + return hrng->ErrorCode; +} +/** + * @} + */ + +/** + * @} + */ + + +#endif /* HAL_RNG_MODULE_ENABLED */ +/** + * @} + */ + +#endif /* RNG */ + +/** + * @} + */ +