ref: 504fa350e718a379f4a0ae764a80d1d8dd1b959b
dir: /demos/stm32f429_disco/stm/stm32f4_spl/inc/stm32f4xx_hal_crc.h/
/**
******************************************************************************
* @file stm32f4xx_hal_crc.h
* @author MCD Application Team
* @version V1.0.0
* @date 18-February-2014
* @brief Header file of CRC HAL module.
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_HAL_CRC_H
#define __STM32F4xx_HAL_CRC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @addtogroup CRC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief CRC HAL State Structure definition
*/
typedef enum
{
HAL_CRC_STATE_RESET = 0x00, /*!< CRC not yet initialized or disabled */
HAL_CRC_STATE_READY = 0x01, /*!< CRC initialized and ready for use */
HAL_CRC_STATE_BUSY = 0x02, /*!< CRC internal process is ongoing */
HAL_CRC_STATE_TIMEOUT = 0x03, /*!< CRC timeout state */
HAL_CRC_STATE_ERROR = 0x04 /*!< CRC error state */
}HAL_CRC_StateTypeDef;
/**
* @brief CRC handle Structure definition
*/
typedef struct
{
CRC_TypeDef *Instance; /*!< Register base address */
HAL_LockTypeDef Lock; /*!< CRC locking object */
__IO HAL_CRC_StateTypeDef State; /*!< CRC communication state */
}CRC_HandleTypeDef;
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/**
* @brief Resets CRC Data Register.
* @param __HANDLE__: CRC handle
* @retval None
*/
#define __HAL_CRC_DR_RESET(__HANDLE__) ((__HANDLE__)->Instance->CR |= CRC_CR_RESET)
/* Exported functions --------------------------------------------------------*/
/* Initialization/de-initialization functions **********************************/
HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc);
HAL_StatusTypeDef HAL_CRC_DeInit (CRC_HandleTypeDef *hcrc);
void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc);
void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc);
/* Peripheral Control functions ************************************************/
uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength);
uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength);
/* Peripheral State functions **************************************************/
HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc);
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32F4xx_HAL_CRC_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/