1 /** 2 ****************************************************************************** 3 * @file stm32g4xx_hal_rng.h 4 * @author MCD Application Team 5 * @brief Header file of RNG HAL module. 6 ****************************************************************************** 7 * @attention 8 * 9 * Copyright (c) 2019 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 STM32G4xx_HAL_RNG_H 21 #define STM32G4xx_HAL_RNG_H 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 /* Includes ------------------------------------------------------------------*/ 28 #include "stm32g4xx_hal_def.h" 29 30 /** @addtogroup STM32G4xx_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 typedef struct 51 { 52 uint32_t ClockErrorDetection; /*!< CED Clock error detection */ 53 } RNG_InitTypeDef; 54 55 /** 56 * @} 57 */ 58 59 /** @defgroup RNG_Exported_Types_Group2 RNG State Structure definition 60 * @{ 61 */ 62 typedef enum 63 { 64 HAL_RNG_STATE_RESET = 0x00U, /*!< RNG not yet initialized or disabled */ 65 HAL_RNG_STATE_READY = 0x01U, /*!< RNG initialized and ready for use */ 66 HAL_RNG_STATE_BUSY = 0x02U, /*!< RNG internal process is ongoing */ 67 HAL_RNG_STATE_TIMEOUT = 0x03U, /*!< RNG timeout state */ 68 HAL_RNG_STATE_ERROR = 0x04U /*!< RNG error state */ 69 70 } HAL_RNG_StateTypeDef; 71 72 /** 73 * @} 74 */ 75 76 /** @defgroup RNG_Exported_Types_Group3 RNG Handle Structure definition 77 * @{ 78 */ 79 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 80 typedef struct __RNG_HandleTypeDef 81 #else 82 typedef struct 83 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 84 { 85 RNG_TypeDef *Instance; /*!< Register base address */ 86 87 RNG_InitTypeDef Init; /*!< RNG configuration parameters */ 88 89 HAL_LockTypeDef Lock; /*!< RNG locking object */ 90 91 __IO HAL_RNG_StateTypeDef State; /*!< RNG communication state */ 92 93 __IO uint32_t ErrorCode; /*!< RNG Error code */ 94 95 uint32_t RandomNumber; /*!< Last Generated RNG Data */ 96 97 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 98 void (* ReadyDataCallback)(struct __RNG_HandleTypeDef *hrng, uint32_t random32bit); /*!< RNG Data Ready Callback */ 99 void (* ErrorCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Error Callback */ 100 101 void (* MspInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp Init callback */ 102 void (* MspDeInitCallback)(struct __RNG_HandleTypeDef *hrng); /*!< RNG Msp DeInit callback */ 103 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 104 105 } RNG_HandleTypeDef; 106 107 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 108 /** 109 * @brief HAL RNG Callback ID enumeration definition 110 */ 111 typedef enum 112 { 113 HAL_RNG_ERROR_CB_ID = 0x00U, /*!< RNG Error Callback ID */ 114 115 HAL_RNG_MSPINIT_CB_ID = 0x01U, /*!< RNG MspInit callback ID */ 116 HAL_RNG_MSPDEINIT_CB_ID = 0x02U /*!< RNG MspDeInit callback ID */ 117 118 } HAL_RNG_CallbackIDTypeDef; 119 120 /** 121 * @brief HAL RNG Callback pointer definition 122 */ 123 typedef void (*pRNG_CallbackTypeDef)(RNG_HandleTypeDef *hrng); /*!< pointer to a common RNG callback function */ 124 typedef void (*pRNG_ReadyDataCallbackTypeDef)(RNG_HandleTypeDef *hrng, uint32_t random32bit); /*!< pointer to an RNG Data Ready specific callback function */ 125 126 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 127 128 /** 129 * @} 130 */ 131 132 /** 133 * @} 134 */ 135 136 /* Exported constants --------------------------------------------------------*/ 137 /** @defgroup RNG_Exported_Constants RNG Exported Constants 138 * @{ 139 */ 140 141 /** @defgroup RNG_Exported_Constants_Group1 RNG Interrupt definition 142 * @{ 143 */ 144 #define RNG_IT_DRDY RNG_SR_DRDY /*!< Data Ready interrupt */ 145 #define RNG_IT_CEI RNG_SR_CEIS /*!< Clock error interrupt */ 146 #define RNG_IT_SEI RNG_SR_SEIS /*!< Seed error interrupt */ 147 /** 148 * @} 149 */ 150 151 /** @defgroup RNG_Exported_Constants_Group2 RNG Flag definition 152 * @{ 153 */ 154 #define RNG_FLAG_DRDY RNG_SR_DRDY /*!< Data ready */ 155 #define RNG_FLAG_CECS RNG_SR_CECS /*!< Clock error current status */ 156 #define RNG_FLAG_SECS RNG_SR_SECS /*!< Seed error current status */ 157 /** 158 * @} 159 */ 160 161 /** @defgroup RNG_Exported_Constants_Group3 RNG Clock Error Detection 162 * @{ 163 */ 164 #define RNG_CED_ENABLE 0x00000000U /*!< Clock error detection Enabled */ 165 #define RNG_CED_DISABLE RNG_CR_CED /*!< Clock error detection Disabled */ 166 /** 167 * @} 168 */ 169 170 /** @defgroup RNG_Error_Definition RNG Error Definition 171 * @{ 172 */ 173 #define HAL_RNG_ERROR_NONE 0x00000000U /*!< No error */ 174 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 175 #define HAL_RNG_ERROR_INVALID_CALLBACK 0x00000001U /*!< Invalid Callback error */ 176 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 177 #define HAL_RNG_ERROR_TIMEOUT 0x00000002U /*!< Timeout error */ 178 #define HAL_RNG_ERROR_BUSY 0x00000004U /*!< Busy error */ 179 #define HAL_RNG_ERROR_SEED 0x00000008U /*!< Seed error */ 180 #define HAL_RNG_ERROR_CLOCK 0x00000010U /*!< Clock error */ 181 /** 182 * @} 183 */ 184 185 /** 186 * @} 187 */ 188 189 /* Exported macros -----------------------------------------------------------*/ 190 /** @defgroup RNG_Exported_Macros RNG Exported Macros 191 * @{ 192 */ 193 194 /** @brief Reset RNG handle state 195 * @param __HANDLE__ RNG Handle 196 * @retval None 197 */ 198 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 199 #define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) do{ \ 200 (__HANDLE__)->State = HAL_RNG_STATE_RESET; \ 201 (__HANDLE__)->MspInitCallback = NULL; \ 202 (__HANDLE__)->MspDeInitCallback = NULL; \ 203 } while(0U) 204 #else 205 #define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RNG_STATE_RESET) 206 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 207 208 /** 209 * @brief Enables the RNG peripheral. 210 * @param __HANDLE__ RNG Handle 211 * @retval None 212 */ 213 #define __HAL_RNG_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_RNGEN) 214 215 /** 216 * @brief Disables the RNG peripheral. 217 * @param __HANDLE__ RNG Handle 218 * @retval None 219 */ 220 #define __HAL_RNG_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_RNGEN) 221 222 /** 223 * @brief Check the selected RNG flag status. 224 * @param __HANDLE__ RNG Handle 225 * @param __FLAG__ RNG flag 226 * This parameter can be one of the following values: 227 * @arg RNG_FLAG_DRDY: Data ready 228 * @arg RNG_FLAG_CECS: Clock error current status 229 * @arg RNG_FLAG_SECS: Seed error current status 230 * @retval The new state of __FLAG__ (SET or RESET). 231 */ 232 #define __HAL_RNG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__)) 233 234 /** 235 * @brief Clears the selected RNG flag status. 236 * @param __HANDLE__ RNG handle 237 * @param __FLAG__ RNG flag to clear 238 * @note WARNING: This is a dummy macro for HAL code alignment, 239 * flags RNG_FLAG_DRDY, RNG_FLAG_CECS and RNG_FLAG_SECS are read-only. 240 * @retval None 241 */ 242 #define __HAL_RNG_CLEAR_FLAG(__HANDLE__, __FLAG__) /* dummy macro */ 243 244 /** 245 * @brief Enables the RNG interrupts. 246 * @param __HANDLE__ RNG Handle 247 * @retval None 248 */ 249 #define __HAL_RNG_ENABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR |= RNG_CR_IE) 250 251 /** 252 * @brief Disables the RNG interrupts. 253 * @param __HANDLE__ RNG Handle 254 * @retval None 255 */ 256 #define __HAL_RNG_DISABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_IE) 257 258 /** 259 * @brief Checks whether the specified RNG interrupt has occurred or not. 260 * @param __HANDLE__ RNG Handle 261 * @param __INTERRUPT__ specifies the RNG interrupt status flag to check. 262 * This parameter can be one of the following values: 263 * @arg RNG_IT_DRDY: Data ready interrupt 264 * @arg RNG_IT_CEI: Clock error interrupt 265 * @arg RNG_IT_SEI: Seed error interrupt 266 * @retval The new state of __INTERRUPT__ (SET or RESET). 267 */ 268 #define __HAL_RNG_GET_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR & (__INTERRUPT__)) == (__INTERRUPT__)) 269 270 /** 271 * @brief Clear the RNG interrupt status flags. 272 * @param __HANDLE__ RNG Handle 273 * @param __INTERRUPT__ specifies the RNG interrupt status flag to clear. 274 * This parameter can be one of the following values: 275 * @arg RNG_IT_CEI: Clock error interrupt 276 * @arg RNG_IT_SEI: Seed error interrupt 277 * @note RNG_IT_DRDY flag is read-only, reading RNG_DR register automatically clears RNG_IT_DRDY. 278 * @retval None 279 */ 280 #define __HAL_RNG_CLEAR_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR) = ~(__INTERRUPT__)) 281 282 /** 283 * @} 284 */ 285 286 /* Exported functions --------------------------------------------------------*/ 287 /** @defgroup RNG_Exported_Functions RNG Exported Functions 288 * @{ 289 */ 290 291 /** @defgroup RNG_Exported_Functions_Group1 Initialization and configuration functions 292 * @{ 293 */ 294 HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng); 295 HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng); 296 void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng); 297 void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng); 298 299 /* Callbacks Register/UnRegister functions ***********************************/ 300 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1) 301 HAL_StatusTypeDef HAL_RNG_RegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID, 302 pRNG_CallbackTypeDef pCallback); 303 HAL_StatusTypeDef HAL_RNG_UnRegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID); 304 305 HAL_StatusTypeDef HAL_RNG_RegisterReadyDataCallback(RNG_HandleTypeDef *hrng, pRNG_ReadyDataCallbackTypeDef pCallback); 306 HAL_StatusTypeDef HAL_RNG_UnRegisterReadyDataCallback(RNG_HandleTypeDef *hrng); 307 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */ 308 309 /** 310 * @} 311 */ 312 313 /** @defgroup RNG_Exported_Functions_Group2 Peripheral Control functions 314 * @{ 315 */ 316 HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber(RNG_HandleTypeDef *hrng, uint32_t *random32bit); 317 HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT(RNG_HandleTypeDef *hrng); 318 uint32_t HAL_RNG_ReadLastRandomNumber(RNG_HandleTypeDef *hrng); 319 320 void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng); 321 void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng); 322 void HAL_RNG_ReadyDataCallback(RNG_HandleTypeDef *hrng, uint32_t random32bit); 323 324 /** 325 * @} 326 */ 327 328 /** @defgroup RNG_Exported_Functions_Group3 Peripheral State functions 329 * @{ 330 */ 331 HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng); 332 uint32_t HAL_RNG_GetError(RNG_HandleTypeDef *hrng); 333 /** 334 * @} 335 */ 336 337 /** 338 * @} 339 */ 340 341 /* Private macros ------------------------------------------------------------*/ 342 /** @defgroup RNG_Private_Macros RNG Private Macros 343 * @{ 344 */ 345 #define IS_RNG_IT(IT) (((IT) == RNG_IT_CEI) || \ 346 ((IT) == RNG_IT_SEI)) 347 348 #define IS_RNG_FLAG(FLAG) (((FLAG) == RNG_FLAG_DRDY) || \ 349 ((FLAG) == RNG_FLAG_CECS) || \ 350 ((FLAG) == RNG_FLAG_SECS)) 351 352 /** 353 * @brief Verify the RNG Clock Error Detection mode. 354 * @param __MODE__ RNG Clock Error Detection mode 355 * @retval SET (__MODE__ is valid) or RESET (__MODE__ is invalid) 356 */ 357 #define IS_RNG_CED(__MODE__) (((__MODE__) == RNG_CED_ENABLE) || \ 358 ((__MODE__) == RNG_CED_DISABLE)) 359 /** 360 * @} 361 */ 362 363 /** 364 * @} 365 */ 366 367 #endif /* RNG */ 368 369 /** 370 * @} 371 */ 372 373 #ifdef __cplusplus 374 } 375 #endif 376 377 378 #endif /* STM32G4xx_HAL_RNG_H */ 379 380
