stm32f4xx_hal_uart.h

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/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_HAL_UART_H
#define __STM32F4xx_HAL_UART_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 HwFlowCtl;                 
  uint32_t OverSampling;              
}UART_InitTypeDef;

typedef enum
{
  HAL_UART_STATE_RESET             = 0x00U,    
  HAL_UART_STATE_READY             = 0x20U,    
  HAL_UART_STATE_BUSY              = 0x24U,    
  HAL_UART_STATE_BUSY_TX           = 0x21U,    
  HAL_UART_STATE_BUSY_RX           = 0x22U,    
  HAL_UART_STATE_BUSY_TX_RX        = 0x23U,    
  HAL_UART_STATE_TIMEOUT           = 0xA0U,    
  HAL_UART_STATE_ERROR             = 0xE0U     
}HAL_UART_StateTypeDef;

typedef struct
{
  USART_TypeDef                 *Instance;        
  UART_InitTypeDef              Init;             
  uint8_t                       *pTxBuffPtr;      
  uint16_t                      TxXferSize;       
  uint16_t                      TxXferCount;      
  uint8_t                       *pRxBuffPtr;      
  uint16_t                      RxXferSize;       
  uint16_t                      RxXferCount;      
  DMA_HandleTypeDef             *hdmatx;          
  DMA_HandleTypeDef             *hdmarx;          
  HAL_LockTypeDef               Lock;             
  __IO HAL_UART_StateTypeDef    gState;           
  __IO HAL_UART_StateTypeDef    RxState;          
  __IO uint32_t                 ErrorCode;        
}UART_HandleTypeDef;
/* Exported constants --------------------------------------------------------*/
#define HAL_UART_ERROR_NONE         ((uint32_t)0x00000000U)   
#define HAL_UART_ERROR_PE           ((uint32_t)0x00000001U)   
#define HAL_UART_ERROR_NE           ((uint32_t)0x00000002U)   
#define HAL_UART_ERROR_FE           ((uint32_t)0x00000004U)   
#define HAL_UART_ERROR_ORE          ((uint32_t)0x00000008U)   
#define HAL_UART_ERROR_DMA          ((uint32_t)0x00000010U)   
#define UART_WORDLENGTH_8B                  ((uint32_t)0x00000000U)
#define UART_WORDLENGTH_9B                  ((uint32_t)USART_CR1_M)

#define UART_STOPBITS_1                     ((uint32_t)0x00000000U)
#define UART_STOPBITS_2                     ((uint32_t)USART_CR2_STOP_1)

#define UART_PARITY_NONE                    ((uint32_t)0x00000000U)
#define UART_PARITY_EVEN                    ((uint32_t)USART_CR1_PCE)
#define UART_PARITY_ODD                     ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) 

#define UART_HWCONTROL_NONE                  ((uint32_t)0x00000000U)
#define UART_HWCONTROL_RTS                   ((uint32_t)USART_CR3_RTSE)
#define UART_HWCONTROL_CTS                   ((uint32_t)USART_CR3_CTSE)
#define UART_HWCONTROL_RTS_CTS               ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE))

#define UART_MODE_RX                        ((uint32_t)USART_CR1_RE)
#define UART_MODE_TX                        ((uint32_t)USART_CR1_TE)
#define UART_MODE_TX_RX                     ((uint32_t)(USART_CR1_TE |USART_CR1_RE))

#define UART_STATE_DISABLE                  ((uint32_t)0x00000000U)
#define UART_STATE_ENABLE                   ((uint32_t)USART_CR1_UE)

#define UART_OVERSAMPLING_16                    ((uint32_t)0x00000000U)
#define UART_OVERSAMPLING_8                     ((uint32_t)USART_CR1_OVER8)

#define UART_LINBREAKDETECTLENGTH_10B      ((uint32_t)0x00000000U)
#define UART_LINBREAKDETECTLENGTH_11B      ((uint32_t)0x00000020U)

#define UART_WAKEUPMETHOD_IDLELINE                ((uint32_t)0x00000000U)
#define UART_WAKEUPMETHOD_ADDRESSMARK             ((uint32_t)0x00000800U)

#define UART_FLAG_CTS                       ((uint32_t)USART_SR_CTS)
#define UART_FLAG_LBD                       ((uint32_t)USART_SR_LBD)
#define UART_FLAG_TXE                       ((uint32_t)USART_SR_TXE)
#define UART_FLAG_TC                        ((uint32_t)USART_SR_TC)
#define UART_FLAG_RXNE                      ((uint32_t)USART_SR_RXNE)
#define UART_FLAG_IDLE                      ((uint32_t)USART_SR_IDLE)
#define UART_FLAG_ORE                       ((uint32_t)USART_SR_ORE)
#define UART_FLAG_NE                        ((uint32_t)USART_SR_NE)
#define UART_FLAG_FE                        ((uint32_t)USART_SR_FE)
#define UART_FLAG_PE                        ((uint32_t)USART_SR_PE)

#define UART_IT_PE                       ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_PEIE))
#define UART_IT_TXE                      ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TXEIE))
#define UART_IT_TC                       ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_TCIE))
#define UART_IT_RXNE                     ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_RXNEIE))
#define UART_IT_IDLE                     ((uint32_t)(UART_CR1_REG_INDEX << 28U | USART_CR1_IDLEIE))

#define UART_IT_LBD                      ((uint32_t)(UART_CR2_REG_INDEX << 28U | USART_CR2_LBDIE))

#define UART_IT_CTS                      ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_CTSIE))
#define UART_IT_ERR                      ((uint32_t)(UART_CR3_REG_INDEX << 28U | USART_CR3_EIE))

/* Exported macro ------------------------------------------------------------*/
#define __HAL_UART_RESET_HANDLE_STATE(__HANDLE__)  do{                                                   \
                                                       (__HANDLE__)->gState = HAL_UART_STATE_RESET;      \
                                                       (__HANDLE__)->RxState = HAL_UART_STATE_RESET;     \
                                                     } while(0)

#define __HAL_UART_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR)

#define __HAL_UART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))   
     
#define __HAL_UART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))

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

#define __HAL_UART_CLEAR_NEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)

#define __HAL_UART_CLEAR_OREFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)

#define __HAL_UART_CLEAR_IDLEFLAG(__HANDLE__) __HAL_UART_CLEAR_PEFLAG(__HANDLE__)
                                                 
#define UART_IT_MASK  ((uint32_t)0x0000FFFFU)
#define __HAL_UART_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((((__INTERRUPT__) >> 28U) == 1U)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & UART_IT_MASK)): \
                                                           (((__INTERRUPT__) >> 28U) == 2U)? ((__HANDLE__)->Instance->CR2 |=  ((__INTERRUPT__) & UART_IT_MASK)): \
                                                        ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & UART_IT_MASK)))

#define __HAL_UART_DISABLE_IT(__HANDLE__, __INTERRUPT__)  ((((__INTERRUPT__) >> 28U) == 1U)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
                                                           (((__INTERRUPT__) >> 28U) == 2U)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & UART_IT_MASK)): \
                                                        ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & UART_IT_MASK)))

#define __HAL_UART_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__)) & UART_IT_MASK))

#define __HAL_UART_HWCONTROL_CTS_ENABLE(__HANDLE__)        \
  do{                                                      \
    SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE);  \
    (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_CTSE;        \
  } while(0)

#define __HAL_UART_HWCONTROL_CTS_DISABLE(__HANDLE__)        \
  do{                                                       \
    CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_CTSE); \
    (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_CTSE);      \
  } while(0)

#define __HAL_UART_HWCONTROL_RTS_ENABLE(__HANDLE__)       \
  do{                                                     \
    SET_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE); \
    (__HANDLE__)->Init.HwFlowCtl |= USART_CR3_RTSE;       \
  } while(0)

#define __HAL_UART_HWCONTROL_RTS_DISABLE(__HANDLE__)       \
  do{                                                      \
    CLEAR_BIT((__HANDLE__)->Instance->CR3, USART_CR3_RTSE);\
    (__HANDLE__)->Init.HwFlowCtl &= ~(USART_CR3_RTSE);     \
  } while(0)

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

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

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

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

/* Exported functions --------------------------------------------------------*/
/* Initialization/de-initialization functions  **********************************/
HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength);
HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod);
HAL_StatusTypeDef HAL_UART_DeInit (UART_HandleTypeDef *huart);
void HAL_UART_MspInit(UART_HandleTypeDef *huart);
void HAL_UART_MspDeInit(UART_HandleTypeDef *huart);
/* IO operation functions *******************************************************/
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart);

void HAL_UART_IRQHandler(UART_HandleTypeDef *huart);
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart);
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);
void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart);
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart);
/* Peripheral Control functions  ************************************************/
HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_MultiProcessor_ExitMuteMode(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart);
HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart);
/* Peripheral State functions  **************************************************/
HAL_UART_StateTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart);
uint32_t              HAL_UART_GetError(UART_HandleTypeDef *huart);
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
#define UART_CR1_REG_INDEX               1U
#define UART_CR2_REG_INDEX               2U
#define UART_CR3_REG_INDEX               3U

/* Private macros ------------------------------------------------------------*/
#define IS_UART_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B) || \
                                     ((LENGTH) == UART_WORDLENGTH_9B))
#define IS_UART_LIN_WORD_LENGTH(LENGTH) (((LENGTH) == UART_WORDLENGTH_8B))
#define IS_UART_STOPBITS(STOPBITS) (((STOPBITS) == UART_STOPBITS_1) || \
                                    ((STOPBITS) == UART_STOPBITS_2))
#define IS_UART_PARITY(PARITY) (((PARITY) == UART_PARITY_NONE) || \
                                ((PARITY) == UART_PARITY_EVEN) || \
                                ((PARITY) == UART_PARITY_ODD))
#define IS_UART_HARDWARE_FLOW_CONTROL(CONTROL)\
                              (((CONTROL) == UART_HWCONTROL_NONE) || \
                               ((CONTROL) == UART_HWCONTROL_RTS) || \
                               ((CONTROL) == UART_HWCONTROL_CTS) || \
                               ((CONTROL) == UART_HWCONTROL_RTS_CTS))
#define IS_UART_MODE(MODE) ((((MODE) & (uint32_t)0x0000FFF3U) == 0x00U) && ((MODE) != (uint32_t)0x00U))
#define IS_UART_STATE(STATE) (((STATE) == UART_STATE_DISABLE) || \
                              ((STATE) == UART_STATE_ENABLE))
#define IS_UART_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16) || \
                                        ((SAMPLING) == UART_OVERSAMPLING_8))
#define IS_UART_LIN_OVERSAMPLING(SAMPLING) (((SAMPLING) == UART_OVERSAMPLING_16))
#define IS_UART_LIN_BREAK_DETECT_LENGTH(LENGTH) (((LENGTH) == UART_LINBREAKDETECTLENGTH_10B) || \
                                                 ((LENGTH) == UART_LINBREAKDETECTLENGTH_11B))
#define IS_UART_WAKEUPMETHOD(WAKEUP) (((WAKEUP) == UART_WAKEUPMETHOD_IDLELINE) || \
                                      ((WAKEUP) == UART_WAKEUPMETHOD_ADDRESSMARK))
#define IS_UART_BAUDRATE(BAUDRATE) ((BAUDRATE) < 10500001U)
#define IS_UART_ADDRESS(ADDRESS) ((ADDRESS) <= 0x0FU)

#define UART_DIV_SAMPLING16(_PCLK_, _BAUD_)            (((_PCLK_)*25U)/(4U*(_BAUD_)))
#define UART_DIVMANT_SAMPLING16(_PCLK_, _BAUD_)        (UART_DIV_SAMPLING16((_PCLK_), (_BAUD_))/100U)
#define UART_DIVFRAQ_SAMPLING16(_PCLK_, _BAUD_)        (((UART_DIV_SAMPLING16((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) * 100U)) * 16U + 50U) / 100U)
/* UART BRR = mantissa + overflow + fraction
            = (UART DIVMANT << 4) + (UART DIVFRAQ & 0xF0) + (UART DIVFRAQ & 0x0FU) */
#define UART_BRR_SAMPLING16(_PCLK_, _BAUD_)            (((UART_DIVMANT_SAMPLING16((_PCLK_), (_BAUD_)) << 4U) + \
                                                        (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0xF0U)) + \
                                                        (UART_DIVFRAQ_SAMPLING16((_PCLK_), (_BAUD_)) & 0x0FU))

#define UART_DIV_SAMPLING8(_PCLK_, _BAUD_)             (((_PCLK_)*25U)/(2U*(_BAUD_)))
#define UART_DIVMANT_SAMPLING8(_PCLK_, _BAUD_)         (UART_DIV_SAMPLING8((_PCLK_), (_BAUD_))/100U)
#define UART_DIVFRAQ_SAMPLING8(_PCLK_, _BAUD_)         (((UART_DIV_SAMPLING8((_PCLK_), (_BAUD_)) - (UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) * 100U)) * 8U + 50U) / 100U)
/* UART BRR = mantissa + overflow + fraction
            = (UART DIVMANT << 4) + ((UART DIVFRAQ & 0xF8) << 1) + (UART DIVFRAQ & 0x07U) */
#define UART_BRR_SAMPLING8(_PCLK_, _BAUD_)             (((UART_DIVMANT_SAMPLING8((_PCLK_), (_BAUD_)) << 4U) + \
                                                        ((UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0xF8U) << 1U)) + \
                                                        (UART_DIVFRAQ_SAMPLING8((_PCLK_), (_BAUD_)) & 0x07U))

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

#endif /* __STM32F4xx_HAL_UART_H */

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