1 /** 2 ****************************************************************************** 3 * @file stm32l0xx_hal_rng.h 4 * @author MCD Application Team 5 * @brief Header file of RNG HAL module. 6 ****************************************************************************** 7 * @attention 8 * 9 * Copyright (c) 2016 STMicroelectronics. 10 * All rights reserved. 11 * 12 * This software is licensed under terms that can be found in the LICENSE file 13 * in the root directory of this software component. 14 * If no LICENSE file comes with this software, it is provided AS-IS. 15 * 16 ****************************************************************************** 17 */ 18 19 /* Define to prevent recursive inclusion -------------------------------------*/ 20 #ifndef STM32L0xx_HAL_RNG_H 21 #define STM32L0xx_HAL_RNG_H 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 /* Includes ------------------------------------------------------------------*/ 28 #include "stm32l0xx_hal_def.h" 29 30 /** @addtogroup STM32L0xx_HAL_Driver 31 * @{ 32 */ 33 34 #if defined (RNG) 35 36 /** @defgroup RNG RNG 37 * @brief RNG HAL module driver 38 * @{ 39 */ 40 41 /* Exported types ------------------------------------------------------------*/ 42 43 /** @defgroup RNG_Exported_Types RNG Exported Types 44 * @{ 45 */ 46 47 /** @defgroup RNG_Exported_Types_Group1 RNG Init Structure definition 48 * @{ 49 */ 50 51 /** 52 * @} 53 */ 54 55 /** @defgroup RNG_Exported_Types_Group2 RNG State Structure definition 56 * @{ 57 */ 58 typedef enum 59 { 60 HAL_RNG_STATE_RESET = 0x00U, /*!< RNG not yet initialized or disabled */ 61 HAL_RNG_STATE_READY = 0x01U, /*!< RNG initialized and ready for use */ 62 HAL_RNG_STATE_BUSY = 0x02U, /*!< RNG internal process is ongoing */ 63 HAL_RNG_STATE_TIMEOUT = 0x03U, /*!< RNG timeout state */ 64 HAL_RNG_STATE_ERROR = 0x04U /*!< RNG error state */ 65 66 } HAL_RNG_StateTypeDef; 67 68 /** 69 * @} 70 */ 71 72 /** @defgroup RNG_Exported_Types_Group3 RNG Handle Structure definition 73 * @{ 74 */ 75 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 76 typedef struct __RNG_HandleTypeDef 77 #else 78 typedef struct 79 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 80 { 81 RNG_TypeDef *Instance; /*!< Register base address */ 82 83 HAL_LockTypeDef Lock; /*!< RNG locking object */ 84 85 __IO HAL_RNG_StateTypeDef State; /*!< RNG communication state */ 86 87 __IO uint32_t ErrorCode; /*!< RNG Error code */ 88 89 uint32_t RandomNumber; /*!< Last Generated RNG Data */ 90 91 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 92 void (* ReadyDataCallback)(struct __RNG_HandleTypeDef *hrng, uint32_t random32bit); /*!< RNG Data Ready Callback */ 93 void (* ErrorCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Error Callback */ 94 95 void (* MspInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp Init callback */ 96 void (* MspDeInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp DeInit callback */ 97 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 98 99 } RNG_HandleTypeDef; 100 101 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 102 /** 103 * @brief HAL RNG Callback ID enumeration definition 104 */ 105 typedef enum 106 { 107 HAL_RNG_ERROR_CB_ID = 0x00U, /*!< RNG Error Callback ID */ 108 109 HAL_RNG_MSPINIT_CB_ID = 0x01U, /*!< RNG MspInit callback ID */ 110 HAL_RNG_MSPDEINIT_CB_ID = 0x02U /*!< RNG MspDeInit callback ID */ 111 112 } HAL_RNG_CallbackIDTypeDef; 113 114 /** 115 * @brief HAL RNG Callback pointer definition 116 */ 117 typedef void (*pRNG_CallbackTypeDef)(RNG_HandleTypeDef *hrng); /*!< pointer to a common RNG callback function */ 118 typedef void (*pRNG_ReadyDataCallbackTypeDef)(RNG_HandleTypeDef *hrng, uint32_t random32bit); /*!< pointer to an RNG Data Ready specific callback function */ 119 120 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 121 122 /** 123 * @} 124 */ 125 126 /** 127 * @} 128 */ 129 130 /* Exported constants --------------------------------------------------------*/ 131 /** @defgroup RNG_Exported_Constants RNG Exported Constants 132 * @{ 133 */ 134 135 /** @defgroup RNG_Exported_Constants_Group1 RNG Interrupt definition 136 * @{ 137 */ 138 #define RNG_IT_DRDY RNG_SR_DRDY /*!< Data Ready interrupt */ 139 #define RNG_IT_CEI RNG_SR_CEIS /*!< Clock error interrupt */ 140 #define RNG_IT_SEI RNG_SR_SEIS /*!< Seed error interrupt */ 141 /** 142 * @} 143 */ 144 145 /** @defgroup RNG_Exported_Constants_Group2 RNG Flag definition 146 * @{ 147 */ 148 #define RNG_FLAG_DRDY RNG_SR_DRDY /*!< Data ready */ 149 #define RNG_FLAG_CECS RNG_SR_CECS /*!< Clock error current status */ 150 #define RNG_FLAG_SECS RNG_SR_SECS /*!< Seed error current status */ 151 /** 152 * @} 153 */ 154 155 /** @defgroup RNG_Error_Definition RNG Error Definition 156 * @{ 157 */ 158 #define HAL_RNG_ERROR_NONE 0x00000000U /*!< No error */ 159 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 160 #define HAL_RNG_ERROR_INVALID_CALLBACK 0x00000001U /*!< Invalid Callback error */ 161 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 162 #define HAL_RNG_ERROR_TIMEOUT 0x00000002U /*!< Timeout error */ 163 #define HAL_RNG_ERROR_BUSY 0x00000004U /*!< Busy error */ 164 #define HAL_RNG_ERROR_SEED 0x00000008U /*!< Seed error */ 165 #define HAL_RNG_ERROR_CLOCK 0x00000010U /*!< Clock error */ 166 /** 167 * @} 168 */ 169 170 /** 171 * @} 172 */ 173 174 /* Exported macros -----------------------------------------------------------*/ 175 /** @defgroup RNG_Exported_Macros RNG Exported Macros 176 * @{ 177 */ 178 179 /** @brief Reset RNG handle state 180 * @param __HANDLE__ RNG Handle 181 * @retval None 182 */ 183 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 184 #define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) do{ \ 185 (__HANDLE__)->State = HAL_RNG_STATE_RESET; \ 186 (__HANDLE__)->MspInitCallback = NULL; \ 187 (__HANDLE__)->MspDeInitCallback = NULL; \ 188 } while(0U) 189 #else 190 #define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RNG_STATE_RESET) 191 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 192 193 /** 194 * @brief Enables the RNG peripheral. 195 * @param __HANDLE__ RNG Handle 196 * @retval None 197 */ 198 #define __HAL_RNG_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_RNGEN) 199 200 /** 201 * @brief Disables the RNG peripheral. 202 * @param __HANDLE__ RNG Handle 203 * @retval None 204 */ 205 #define __HAL_RNG_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_RNGEN) 206 207 /** 208 * @brief Check the selected RNG flag status. 209 * @param __HANDLE__ RNG Handle 210 * @param __FLAG__ RNG flag 211 * This parameter can be one of the following values: 212 * @arg RNG_FLAG_DRDY: Data ready 213 * @arg RNG_FLAG_CECS: Clock error current status 214 * @arg RNG_FLAG_SECS: Seed error current status 215 * @retval The new state of __FLAG__ (SET or RESET). 216 */ 217 #define __HAL_RNG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) 218 219 /** 220 * @brief Clears the selected RNG flag status. 221 * @param __HANDLE__ RNG handle 222 * @param __FLAG__ RNG flag to clear 223 * @note WARNING: This is a dummy macro for HAL code alignment, 224 * flags RNG_FLAG_DRDY, RNG_FLAG_CECS and RNG_FLAG_SECS are read-only. 225 * @retval None 226 */ 227 #define __HAL_RNG_CLEAR_FLAG(__HANDLE__, __FLAG__) /* dummy macro */ 228 229 /** 230 * @brief Enables the RNG interrupts. 231 * @param __HANDLE__ RNG Handle 232 * @retval None 233 */ 234 #define __HAL_RNG_ENABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_IE) 235 236 /** 237 * @brief Disables the RNG interrupts. 238 * @param __HANDLE__ RNG Handle 239 * @retval None 240 */ 241 #define __HAL_RNG_DISABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_IE) 242 243 /** 244 * @brief Checks whether the specified RNG interrupt has occurred or not. 245 * @param __HANDLE__ RNG Handle 246 * @param __INTERRUPT__ specifies the RNG interrupt status flag to check. 247 * This parameter can be one of the following values: 248 * @arg RNG_IT_DRDY: Data ready interrupt 249 * @arg RNG_IT_CEI: Clock error interrupt 250 * @arg RNG_IT_SEI: Seed error interrupt 251 * @retval The new state of __INTERRUPT__ (SET or RESET). 252 */ 253 #define __HAL_RNG_GET_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR & (__INTERRUPT__)) == (__INTERRUPT__)) 254 255 /** 256 * @brief Clear the RNG interrupt status flags. 257 * @param __HANDLE__ RNG Handle 258 * @param __INTERRUPT__ specifies the RNG interrupt status flag to clear. 259 * This parameter can be one of the following values: 260 * @arg RNG_IT_CEI: Clock error interrupt 261 * @arg RNG_IT_SEI: Seed error interrupt 262 * @note RNG_IT_DRDY flag is read-only, reading RNG_DR register automatically clears RNG_IT_DRDY. 263 * @retval None 264 */ 265 #define __HAL_RNG_CLEAR_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR) = ~(__INTERRUPT__)) 266 267 /** 268 * @} 269 */ 270 271 /* Exported functions --------------------------------------------------------*/ 272 /** @defgroup RNG_Exported_Functions RNG Exported Functions 273 * @{ 274 */ 275 276 /** @defgroup RNG_Exported_Functions_Group1 Initialization and configuration functions 277 * @{ 278 */ 279 HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng); 280 HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng); 281 void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng); 282 void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng); 283 284 /* Callbacks Register/UnRegister functions ***********************************/ 285 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 286 HAL_StatusTypeDef HAL_RNG_RegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID, 287 pRNG_CallbackTypeDef pCallback); 288 HAL_StatusTypeDef HAL_RNG_UnRegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID); 289 290 HAL_StatusTypeDef HAL_RNG_RegisterReadyDataCallback(RNG_HandleTypeDef *hrng, pRNG_ReadyDataCallbackTypeDef pCallback); 291 HAL_StatusTypeDef HAL_RNG_UnRegisterReadyDataCallback(RNG_HandleTypeDef *hrng); 292 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 293 294 /** 295 * @} 296 */ 297 298 /** @defgroup RNG_Exported_Functions_Group2 Peripheral Control functions 299 * @{ 300 */ 301 uint32_t HAL_RNG_GetRandomNumber(RNG_HandleTypeDef 302 *hrng); /* Obsolete, use HAL_RNG_GenerateRandomNumber() instead */ 303 uint32_t HAL_RNG_GetRandomNumber_IT(RNG_HandleTypeDef 304 *hrng); /* Obsolete, use HAL_RNG_GenerateRandomNumber_IT() instead */ 305 HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber(RNG_HandleTypeDef *hrng, uint32_t *random32bit); 306 HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT(RNG_HandleTypeDef *hrng); 307 uint32_t HAL_RNG_ReadLastRandomNumber(RNG_HandleTypeDef *hrng); 308 309 void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng); 310 void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng); 311 void HAL_RNG_ReadyDataCallback(RNG_HandleTypeDef *hrng, uint32_t random32bit); 312 313 /** 314 * @} 315 */ 316 317 /** @defgroup RNG_Exported_Functions_Group3 Peripheral State functions 318 * @{ 319 */ 320 HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng); 321 uint32_t HAL_RNG_GetError(RNG_HandleTypeDef *hrng); 322 /** 323 * @} 324 */ 325 326 /** 327 * @} 328 */ 329 330 /* Private macros ------------------------------------------------------------*/ 331 /** @defgroup RNG_Private_Macros RNG Private Macros 332 * @{ 333 */ 334 #define IS_RNG_IT(IT) (((IT) == RNG_IT_CEI) || \ 335 ((IT) == RNG_IT_SEI)) 336 337 #define IS_RNG_FLAG(FLAG) (((FLAG) == RNG_FLAG_DRDY) || \ 338 ((FLAG) == RNG_FLAG_CECS) || \ 339 ((FLAG) == RNG_FLAG_SECS)) 340 341 /** 342 * @} 343 */ 344 345 /** 346 * @} 347 */ 348 349 #endif /* RNG */ 350 351 /** 352 * @} 353 */ 354 355 #ifdef __cplusplus 356 } 357 #endif 358 359 360 #endif /* STM32L0xx_HAL_RNG_H */ 361 362
