lib/main/STM32G4/Drivers/STM32G4xx_HAL_Driver/Inc/stm32g4xx_hal_rng.h

   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   * <h2><center>&copy; Copyright (c) 2018 STMicroelectronics.
  10   * All rights reserved.</center></h2>
  11   *
  12   * This software component is licensed by ST under BSD 3-Clause license,
  13   * the "License"; You may not use this file except in compliance with the
  14   * License. You may obtain a copy of the License at:
  15   *                        opensource.org/licenses/BSD-3-Clause
  16   *
  17   ******************************************************************************
  18   */
  19
  20 /* Define to prevent recursive inclusion -------------------------------------*/
  21 #ifndef STM32G4xx_HAL_RNG_H
  22 #define STM32G4xx_HAL_RNG_H
  23
  24 #ifdef __cplusplus
  25  extern "C" {
  26 #endif
  27
  28 /* Includes ------------------------------------------------------------------*/
  29 #include "stm32g4xx_hal_def.h"
  30
  31 /** @addtogroup STM32G4xx_HAL_Driver
  32   * @{
  33   */
  34
  35 #if defined (RNG)
  36
  37 /** @defgroup RNG RNG
  38   * @brief RNG HAL module driver
  39   * @{
  40   */
  41
  42 /* Exported types ------------------------------------------------------------*/
  43
  44 /** @defgroup RNG_Exported_Types RNG Exported Types
  45   * @{
  46   */
  47
  48 /** @defgroup RNG_Exported_Types_Group1 RNG Init Structure definition
  49   * @{
  50   */
  51 typedef struct
  52 {
  53   uint32_t                    ClockErrorDetection; /*!< CED Clock error detection */
  54 } RNG_InitTypeDef;
  55
  56 /**
  57   * @}
  58   */
  59
  60 /** @defgroup RNG_Exported_Types_Group2 RNG State Structure definition
  61   * @{
  62   */
  63 typedef enum
  64 {
  65   HAL_RNG_STATE_RESET     = 0x00U,  /*!< RNG not yet initialized or disabled */
  66   HAL_RNG_STATE_READY     = 0x01U,  /*!< RNG initialized and ready for use   */
  67   HAL_RNG_STATE_BUSY      = 0x02U,  /*!< RNG internal process is ongoing     */
  68   HAL_RNG_STATE_TIMEOUT   = 0x03U,  /*!< RNG timeout state                   */
  69   HAL_RNG_STATE_ERROR     = 0x04U   /*!< RNG error state                     */
  70
  71 } HAL_RNG_StateTypeDef;
  72
  73 /**
  74   * @}
  75   */
  76
  77 /** @defgroup RNG_Exported_Types_Group3 RNG Handle Structure definition
  78   * @{
  79   */
  80 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
  81 typedef struct  __RNG_HandleTypeDef
  82 #else
  83 typedef struct
  84 #endif /* (USE_HAL_RNG_REGISTER_CALLBACKS) */
  85 {
  86   RNG_TypeDef                 *Instance;    /*!< Register base address   */
  87
  88   RNG_InitTypeDef             Init;         /*!< RNG configuration parameters */
  89
  90   HAL_LockTypeDef             Lock;         /*!< RNG locking object      */
  91
  92   __IO HAL_RNG_StateTypeDef   State;        /*!< RNG communication state */
  93
  94   __IO  uint32_t              ErrorCode;     /*!< RNG Error code               */
  95
  96   uint32_t                    RandomNumber; /*!< Last Generated RNG Data */
  97
  98 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
  99   void (* ReadyDataCallback)(struct __RNG_HandleTypeDef *hrng, uint32_t random32bit);  /*!< RNG Data Ready Callback    */
 100   void (* ErrorCallback)(struct __RNG_HandleTypeDef *hrng);                            /*!< RNG Error Callback         */
 101
 102   void (* MspInitCallback)(struct __RNG_HandleTypeDef *hrng);                          /*!< RNG Msp Init callback      */
 103   void (* MspDeInitCallback)(struct __RNG_HandleTypeDef *hrng);                        /*!< RNG Msp DeInit callback    */
 104 #endif  /* USE_HAL_RNG_REGISTER_CALLBACKS */
 105
 106 } RNG_HandleTypeDef;
 107
 108 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
 109 /**
 110   * @brief  HAL RNG Callback ID enumeration definition
 111   */
 112 typedef enum
 113 {
 114   HAL_RNG_ERROR_CB_ID                   = 0x00U,     /*!< RNG Error Callback ID          */
 115
 116   HAL_RNG_MSPINIT_CB_ID                 = 0x01U,     /*!< RNG MspInit callback ID        */
 117   HAL_RNG_MSPDEINIT_CB_ID               = 0x02U      /*!< RNG MspDeInit callback ID      */
 118
 119 } HAL_RNG_CallbackIDTypeDef;
 120
 121 /**
 122   * @brief  HAL RNG Callback pointer definition
 123   */
 124 typedef  void (*pRNG_CallbackTypeDef)(RNG_HandleTypeDef *hrng);                                  /*!< pointer to a common RNG callback function */
 125 typedef  void (*pRNG_ReadyDataCallbackTypeDef)(RNG_HandleTypeDef *hrng, uint32_t random32bit);   /*!< pointer to an RNG Data Ready specific callback function */
 126
 127 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
 128
 129 /**
 130   * @}
 131   */
 132
 133 /**
 134   * @}
 135   */
 136
 137 /* Exported constants --------------------------------------------------------*/
 138 /** @defgroup RNG_Exported_Constants RNG Exported Constants
 139   * @{
 140   */
 141
 142 /** @defgroup RNG_Exported_Constants_Group1 RNG Interrupt definition
 143   * @{
 144   */
 145 #define RNG_IT_DRDY  RNG_SR_DRDY  /*!< Data Ready interrupt  */
 146 #define RNG_IT_CEI   RNG_SR_CEIS  /*!< Clock error interrupt */
 147 #define RNG_IT_SEI   RNG_SR_SEIS  /*!< Seed error interrupt  */
 148 /**
 149   * @}
 150   */
 151
 152 /** @defgroup RNG_Exported_Constants_Group2 RNG Flag definition
 153   * @{
 154   */
 155 #define RNG_FLAG_DRDY   RNG_SR_DRDY  /*!< Data ready                 */
 156 #define RNG_FLAG_CECS   RNG_SR_CECS  /*!< Clock error current status */
 157 #define RNG_FLAG_SECS   RNG_SR_SECS  /*!< Seed error current status  */
 158 /**
 159   * @}
 160   */
 161
 162 /** @defgroup RNG_Exported_Constants_Group3 RNG Clock Error Detection
 163   * @{
 164   */
 165 #define RNG_CED_ENABLE          0x00000000U /*!< Clock error detection Enabled  */
 166 #define RNG_CED_DISABLE         RNG_CR_CED  /*!< Clock error detection Disabled */
 167 /**
 168   * @}
 169   */
 170
 171 /** @defgroup RNG_Error_Definition   RNG Error Definition
 172   * @{
 173   */
 174 #define  HAL_RNG_ERROR_NONE             0x00000000U    /*!< No error             */
 175 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
 176 #define  HAL_RNG_ERROR_INVALID_CALLBACK 0x00000001U    /*!< Invalid Callback error  */
 177 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
 178 #define  HAL_RNG_ERROR_TIMEOUT          0x00000002U    /*!< Timeout error        */
 179
 180 /**
 181   * @}
 182   */
 183
 184 /**
 185   * @}
 186   */
 187
 188 /* Exported macros -----------------------------------------------------------*/
 189 /** @defgroup RNG_Exported_Macros RNG Exported Macros
 190   * @{
 191   */
 192
 193 /** @brief Reset RNG handle state
 194   * @param  __HANDLE__ RNG Handle
 195   * @retval None
 196   */
 197 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
 198 #define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__)  do{                                                   \
 199                                                        (__HANDLE__)->State = HAL_RNG_STATE_RESET;       \
 200                                                        (__HANDLE__)->MspInitCallback = NULL;            \
 201                                                        (__HANDLE__)->MspDeInitCallback = NULL;          \
 202                                                     } while(0U)
 203 #else
 204 #define __HAL_RNG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_RNG_STATE_RESET)
 205 #endif /*USE_HAL_RNG_REGISTER_CALLBACKS */
 206
 207 /**
 208   * @brief  Enables the RNG peripheral.
 209   * @param  __HANDLE__ RNG Handle
 210   * @retval None
 211   */
 212 #define __HAL_RNG_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |=  RNG_CR_RNGEN)
 213
 214 /**
 215   * @brief  Disables the RNG peripheral.
 216   * @param  __HANDLE__ RNG Handle
 217   * @retval None
 218   */
 219 #define __HAL_RNG_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_RNGEN)
 220
 221 /**
 222   * @brief  Check the selected RNG flag status.
 223   * @param  __HANDLE__ RNG Handle
 224   * @param  __FLAG__ RNG flag
 225   *          This parameter can be one of the following values:
 226   *            @arg RNG_FLAG_DRDY:  Data ready
 227   *            @arg RNG_FLAG_CECS:  Clock error current status
 228   *            @arg RNG_FLAG_SECS:  Seed error current status
 229   * @retval The new state of __FLAG__ (SET or RESET).
 230   */
 231 #define __HAL_RNG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
 232
 233 /**
 234   * @brief  Clears the selected RNG flag status.
 235   * @param  __HANDLE__ RNG handle
 236   * @param  __FLAG__ RNG flag to clear
 237   * @note   WARNING: This is a dummy macro for HAL code alignment,
 238   *         flags RNG_FLAG_DRDY, RNG_FLAG_CECS and RNG_FLAG_SECS are read-only.
 239   * @retval None
 240   */
 241 #define __HAL_RNG_CLEAR_FLAG(__HANDLE__, __FLAG__)                      /* dummy  macro */
 242
 243 /**
 244   * @brief  Enables the RNG interrupts.
 245   * @param  __HANDLE__ RNG Handle
 246   * @retval None
 247   */
 248 #define __HAL_RNG_ENABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR |=  RNG_CR_IE)
 249
 250 /**
 251   * @brief  Disables the RNG interrupts.
 252   * @param  __HANDLE__ RNG Handle
 253   * @retval None
 254   */
 255 #define __HAL_RNG_DISABLE_IT(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~RNG_CR_IE)
 256
 257 /**
 258   * @brief  Checks whether the specified RNG interrupt has occurred or not.
 259   * @param  __HANDLE__ RNG Handle
 260   * @param  __INTERRUPT__ specifies the RNG interrupt status flag to check.
 261   *         This parameter can be one of the following values:
 262   *            @arg RNG_IT_DRDY: Data ready interrupt
 263   *            @arg RNG_IT_CEI: Clock error interrupt
 264   *            @arg RNG_IT_SEI: Seed error interrupt
 265   * @retval The new state of __INTERRUPT__ (SET or RESET).
 266   */
 267 #define __HAL_RNG_GET_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR & (__INTERRUPT__)) == (__INTERRUPT__))
 268
 269 /**
 270   * @brief  Clear the RNG interrupt status flags.
 271   * @param  __HANDLE__ RNG Handle
 272   * @param  __INTERRUPT__ specifies the RNG interrupt status flag to clear.
 273   *          This parameter can be one of the following values:
 274   *            @arg RNG_IT_CEI: Clock error interrupt
 275   *            @arg RNG_IT_SEI: Seed error interrupt
 276   * @note   RNG_IT_DRDY flag is read-only, reading RNG_DR register automatically clears RNG_IT_DRDY.
 277   * @retval None
 278   */
 279 #define __HAL_RNG_CLEAR_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->SR) = ~(__INTERRUPT__))
 280
 281 /**
 282   * @}
 283   */
 284
 285 /* Exported functions --------------------------------------------------------*/
 286 /** @defgroup RNG_Exported_Functions RNG Exported Functions
 287   * @{
 288   */
 289
 290 /** @defgroup RNG_Exported_Functions_Group1 Initialization and configuration functions
 291   * @{
 292   */
 293 HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng);
 294 HAL_StatusTypeDef HAL_RNG_DeInit(RNG_HandleTypeDef *hrng);
 295 void HAL_RNG_MspInit(RNG_HandleTypeDef *hrng);
 296 void HAL_RNG_MspDeInit(RNG_HandleTypeDef *hrng);
 297
 298 /* Callbacks Register/UnRegister functions  ***********************************/
 299 #if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
 300 HAL_StatusTypeDef HAL_RNG_RegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID, pRNG_CallbackTypeDef pCallback);
 301 HAL_StatusTypeDef HAL_RNG_UnRegisterCallback(RNG_HandleTypeDef *hrng, HAL_RNG_CallbackIDTypeDef CallbackID);
 302
 303 HAL_StatusTypeDef HAL_RNG_RegisterReadyDataCallback(RNG_HandleTypeDef *hrng, pRNG_ReadyDataCallbackTypeDef pCallback);
 304 HAL_StatusTypeDef HAL_RNG_UnRegisterReadyDataCallback(RNG_HandleTypeDef *hrng);
 305 #endif /* USE_HAL_RNG_REGISTER_CALLBACKS */
 306
 307 /**
 308   * @}
 309   */
 310
 311 /** @defgroup RNG_Exported_Functions_Group2 Peripheral Control functions
 312   * @{
 313   */
 314 HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber(RNG_HandleTypeDef *hrng, uint32_t *random32bit);
 315 HAL_StatusTypeDef HAL_RNG_GenerateRandomNumber_IT(RNG_HandleTypeDef *hrng);
 316 uint32_t HAL_RNG_ReadLastRandomNumber(RNG_HandleTypeDef *hrng);
 317
 318 void HAL_RNG_IRQHandler(RNG_HandleTypeDef *hrng);
 319 void HAL_RNG_ErrorCallback(RNG_HandleTypeDef *hrng);
 320 void HAL_RNG_ReadyDataCallback(RNG_HandleTypeDef *hrng, uint32_t random32bit);
 321
 322 /**
 323   * @}
 324   */
 325
 326 /** @defgroup RNG_Exported_Functions_Group3 Peripheral State functions
 327   * @{
 328   */
 329 HAL_RNG_StateTypeDef HAL_RNG_GetState(RNG_HandleTypeDef *hrng);
 330 uint32_t             HAL_RNG_GetError(RNG_HandleTypeDef *hrng);
 331 /**
 332   * @}
 333   */
 334
 335 /**
 336   * @}
 337   */
 338
 339 /* Private macros ------------------------------------------------------------*/
 340 /** @defgroup RNG_Private_Macros RNG Private Macros
 341   * @{
 342   */
 343 #define IS_RNG_IT(IT) (((IT) == RNG_IT_CEI) || \
 344                        ((IT) == RNG_IT_SEI))
 345
 346 #define IS_RNG_FLAG(FLAG) (((FLAG) == RNG_FLAG_DRDY) || \
 347                             ((FLAG) == RNG_FLAG_CECS) || \
 348                             ((FLAG) == RNG_FLAG_SECS))
 349
 350 /**
 351   * @brief Verify the RNG Clock Error Detection mode.
 352   * @param __MODE__ RNG Clock Error Detection mode
 353   * @retval SET (__MODE__ is valid) or RESET (__MODE__ is invalid)
 354   */
 355 #define IS_RNG_CED(__MODE__)   (((__MODE__) == RNG_CED_ENABLE) || \
 356                                 ((__MODE__) == RNG_CED_DISABLE))
 357 /**
 358   * @}
 359   */
 360
 361 /**
 362   * @}
 363   */
 364
 365 #endif /* RNG */
 366
 367 /**
 368   * @}
 369   */
 370
 371 #ifdef __cplusplus
 372 }
 373 #endif
 374
 375
 376 #endif /* STM32G4xx_HAL_RNG_H */
 377
 378 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/