stm32f4xx_hal_usart.h

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/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_HAL_USART_H
#define __STM32F4xx_HAL_USART_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"

/* Exported types ------------------------------------------------------------*/ 
typedef struct
{
  uint32_t BaudRate;                  
  uint32_t WordLength;                
  uint32_t StopBits;                  
  uint32_t Parity;                   
  uint32_t Mode;                      
  uint32_t CLKPolarity;               
  uint32_t CLKPhase;                  
  uint32_t CLKLastBit;                
}USART_InitTypeDef;

typedef enum
{
  HAL_USART_STATE_RESET             = 0x00U,    
  HAL_USART_STATE_READY             = 0x01U,    
  HAL_USART_STATE_BUSY              = 0x02U,    
  HAL_USART_STATE_BUSY_TX           = 0x12U,    
  HAL_USART_STATE_BUSY_RX           = 0x22U,    
  HAL_USART_STATE_BUSY_TX_RX        = 0x32U,    
  HAL_USART_STATE_TIMEOUT           = 0x03U,    
  HAL_USART_STATE_ERROR             = 0x04U     
}HAL_USART_StateTypeDef;

typedef struct
{
  USART_TypeDef                 *Instance;        /* USART registers base address        */
  
  USART_InitTypeDef             Init;             /* Usart communication parameters      */
  
  uint8_t                       *pTxBuffPtr;      /* Pointer to Usart Tx transfer Buffer */
  
  uint16_t                      TxXferSize;       /* Usart Tx Transfer size              */
  
  __IO uint16_t                 TxXferCount;      /* Usart Tx Transfer Counter           */
  
  uint8_t                       *pRxBuffPtr;      /* Pointer to Usart Rx transfer Buffer */
  
  uint16_t                      RxXferSize;       /* Usart Rx Transfer size              */
  
  __IO uint16_t                 RxXferCount;      /* Usart Rx Transfer Counter           */  
  
  DMA_HandleTypeDef             *hdmatx;          /* Usart Tx DMA Handle parameters      */
    
  DMA_HandleTypeDef             *hdmarx;          /* Usart Rx DMA Handle parameters      */
  
  HAL_LockTypeDef                Lock;            /* Locking object                      */
  
  __IO HAL_USART_StateTypeDef    State;           /* Usart communication state           */
  
  __IO uint32_t                  ErrorCode;       /* USART Error code                    */

}USART_HandleTypeDef;
/* Exported constants --------------------------------------------------------*/
#define HAL_USART_ERROR_NONE         ((uint32_t)0x00000000U)   
#define HAL_USART_ERROR_PE           ((uint32_t)0x00000001U)   
#define HAL_USART_ERROR_NE           ((uint32_t)0x00000002U)   
#define HAL_USART_ERROR_FE           ((uint32_t)0x00000004U)   
#define HAL_USART_ERROR_ORE          ((uint32_t)0x00000008U)   
#define HAL_USART_ERROR_DMA          ((uint32_t)0x00000010U)   
#define USART_WORDLENGTH_8B                  ((uint32_t)0x00000000U)
#define USART_WORDLENGTH_9B                  ((uint32_t)USART_CR1_M)

#define USART_STOPBITS_1                     ((uint32_t)0x00000000U)
#define USART_STOPBITS_0_5                   ((uint32_t)USART_CR2_STOP_0)
#define USART_STOPBITS_2                     ((uint32_t)USART_CR2_STOP_1)
#define USART_STOPBITS_1_5                   ((uint32_t)(USART_CR2_STOP_0 | USART_CR2_STOP_1))

#define USART_PARITY_NONE                    ((uint32_t)0x00000000U)
#define USART_PARITY_EVEN                    ((uint32_t)USART_CR1_PCE)
#define USART_PARITY_ODD                     ((uint32_t)(USART_CR1_PCE | USART_CR1_PS))

#define USART_MODE_RX                        ((uint32_t)USART_CR1_RE)
#define USART_MODE_TX                        ((uint32_t)USART_CR1_TE)
#define USART_MODE_TX_RX                     ((uint32_t)(USART_CR1_TE |USART_CR1_RE))

#define USART_CLOCK_DISABLE                 ((uint32_t)0x00000000U)
#define USART_CLOCK_ENABLE                  ((uint32_t)USART_CR2_CLKEN)

#define USART_POLARITY_LOW                   ((uint32_t)0x00000000U)
#define USART_POLARITY_HIGH                  ((uint32_t)USART_CR2_CPOL)

#define USART_PHASE_1EDGE                    ((uint32_t)0x00000000U)
#define USART_PHASE_2EDGE                    ((uint32_t)USART_CR2_CPHA)

#define USART_LASTBIT_DISABLE                ((uint32_t)0x00000000U)
#define USART_LASTBIT_ENABLE                 ((uint32_t)USART_CR2_LBCL)

#define USART_NACK_ENABLE           ((uint32_t)USART_CR3_NACK)
#define USART_NACK_DISABLE          ((uint32_t)0x00000000U)

#define USART_FLAG_TXE                       ((uint32_t)0x00000080U)
#define USART_FLAG_TC                        ((uint32_t)0x00000040U)
#define USART_FLAG_RXNE                      ((uint32_t)0x00000020U)
#define USART_FLAG_IDLE                      ((uint32_t)0x00000010U)
#define USART_FLAG_ORE                       ((uint32_t)0x00000008U)
#define USART_FLAG_NE                        ((uint32_t)0x00000004U)
#define USART_FLAG_FE                        ((uint32_t)0x00000002U)
#define USART_FLAG_PE                        ((uint32_t)0x00000001U)

#define USART_IT_PE                     ((uint32_t)(USART_CR1_REG_INDEX << 28U | USART_CR1_PEIE))
#define USART_IT_TXE                    ((uint32_t)(USART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE))
#define USART_IT_TC                     ((uint32_t)(USART_CR1_REG_INDEX << 28U | USART_CR1_TCIE))
#define USART_IT_RXNE                   ((uint32_t)(USART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE))
#define USART_IT_IDLE                   ((uint32_t)(USART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE))

#define USART_IT_LBD                    ((uint32_t)(USART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE))

#define USART_IT_CTS                    ((uint32_t)(USART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE))
#define USART_IT_ERR                    ((uint32_t)(USART_CR3_REG_INDEX << 28U | USART_CR3_EIE))

/* Exported macro ------------------------------------------------------------*/
#define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_USART_STATE_RESET)

#define __HAL_USART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))

#define __HAL_USART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))

#define __HAL_USART_CLEAR_PEFLAG(__HANDLE__)    \
  do{                                           \
    __IO uint32_t tmpreg = 0x00U;                \
    tmpreg = (__HANDLE__)->Instance->SR;        \
    tmpreg = (__HANDLE__)->Instance->DR;        \
    UNUSED(tmpreg);                             \
  } while(0)
                                               
#define __HAL_USART_CLEAR_FEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)

#define __HAL_USART_CLEAR_NEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)

#define __HAL_USART_CLEAR_OREFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)

#define __HAL_USART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_USART_CLEAR_PEFLAG(__HANDLE__)

#define __HAL_USART_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((((__INTERRUPT__) >> 28U) == 1U)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & USART_IT_MASK)): \
                                                            (((__INTERRUPT__) >> 28U) == 2U)? ((__HANDLE__)->Instance->CR2 |=  ((__INTERRUPT__) & USART_IT_MASK)): \
                                                             ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & USART_IT_MASK)))
#define __HAL_USART_DISABLE_IT(__HANDLE__, __INTERRUPT__)  ((((__INTERRUPT__) >> 28U) == 1U)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & USART_IT_MASK)): \
                                                            (((__INTERRUPT__) >> 28U) == 2U)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & USART_IT_MASK)): \
                                                             ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & USART_IT_MASK)))
    
#define __HAL_USART_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28U) == 1U)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28U) == 2U)? \
                                                      (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & USART_IT_MASK))

#define __HAL_USART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)

#define __HAL_USART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_ONEBIT))

#define __HAL_USART_ENABLE(__HANDLE__)               ( (__HANDLE__)->Instance->CR1 |=  USART_CR1_UE)

#define __HAL_USART_DISABLE(__HANDLE__)              ( (__HANDLE__)->Instance->CR1 &=  ~USART_CR1_UE)

/* Exported functions --------------------------------------------------------*/
/* Initialization/de-initialization functions  **********************************/
HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart);
HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart);
void HAL_USART_MspInit(USART_HandleTypeDef *husart);
void HAL_USART_MspDeInit(USART_HandleTypeDef *husart);
/* IO operation functions *******************************************************/
HAL_StatusTypeDef HAL_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData,  uint16_t Size);
HAL_StatusTypeDef HAL_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart);
HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart);
HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart);

void HAL_USART_IRQHandler(USART_HandleTypeDef *husart);
void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart);
/* Peripheral State functions  ************************************************/
HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart);
uint32_t               HAL_USART_GetError(USART_HandleTypeDef *husart);
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
#define USART_IT_MASK  ((uint32_t) USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE | USART_CR1_RXNEIE | \
                                   USART_CR1_IDLEIE | USART_CR2_LBDIE | USART_CR3_CTSIE | USART_CR3_EIE )

#define USART_CR1_REG_INDEX             1U
#define USART_CR2_REG_INDEX             2U
#define USART_CR3_REG_INDEX             3U

/* Private macros ------------------------------------------------------------*/
#define IS_USART_NACK_STATE(NACK) (((NACK) == USART_NACK_ENABLE) || \
                                   ((NACK) == USART_NACK_DISABLE))
#define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LASTBIT_DISABLE) || \
                                       ((LASTBIT) == USART_LASTBIT_ENABLE))
#define IS_USART_PHASE(CPHA) (((CPHA) == USART_PHASE_1EDGE) || ((CPHA) == USART_PHASE_2EDGE))
#define IS_USART_POLARITY(CPOL) (((CPOL) == USART_POLARITY_LOW) || ((CPOL) == USART_POLARITY_HIGH))
#define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_CLOCK_DISABLE) || \
                               ((CLOCK) == USART_CLOCK_ENABLE))
#define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WORDLENGTH_8B) || \
                                          ((LENGTH) == USART_WORDLENGTH_9B))
#define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_STOPBITS_1) || \
                                         ((STOPBITS) == USART_STOPBITS_0_5) || \
                                         ((STOPBITS) == USART_STOPBITS_1_5) || \
                                         ((STOPBITS) == USART_STOPBITS_2))
#define IS_USART_PARITY(PARITY) (((PARITY) == USART_PARITY_NONE) || \
                                     ((PARITY) == USART_PARITY_EVEN) || \
                                     ((PARITY) == USART_PARITY_ODD))
#define IS_USART_MODE(MODE) ((((MODE) & (uint32_t)0xFFF3) == 0x00U) && ((MODE) != (uint32_t)0x00U))
#define IS_USART_BAUDRATE(BAUDRATE) ((BAUDRATE) < 10500001U)

#define USART_DIV(_PCLK_, _BAUD_)                  (((_PCLK_)*25U)/(2U*(_BAUD_)))
#define USART_DIVMANT(_PCLK_, _BAUD_)              (USART_DIV((_PCLK_), (_BAUD_))/100U)
#define USART_DIVFRAQ(_PCLK_, _BAUD_)              (((USART_DIV((_PCLK_), (_BAUD_)) - (USART_DIVMANT((_PCLK_), (_BAUD_)) * 100U)) * 16U + 50U) / 100U)
#define USART_BRR(_PCLK_, _BAUD_)                  ((USART_DIVMANT((_PCLK_), (_BAUD_)) << 4U)|(USART_DIVFRAQ((_PCLK_), (_BAUD_)) & 0x0FU))

/* Private functions ---------------------------------------------------------*/
#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_HAL_USART_H */

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