File content as of revision 274:6937b19af361:

/**
  ******************************************************************************
  * @file    stm32f4xx_hal_irda.h
  * @author  MCD Application Team
  * @version V1.1.0RC2
  * @date    14-May-2014
  * @brief   Header file of IRDA HAL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; 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_IRDA_H
#define __STM32F4xx_HAL_IRDA_H

#ifdef __cplusplus
 extern "C" {
#endif

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

/** @addtogroup STM32F4xx_HAL_Driver
  * @{
  */

/** @addtogroup IRDA
  * @{
  */ 

/* Exported types ------------------------------------------------------------*/ 

/** 
  * @brief IRDA Init Structure definition  
  */ 
typedef struct
{
  uint32_t BaudRate;                  /*!< This member configures the IRDA communication baud rate.
                                           The baud rate is computed using the following formula:
                                           - IntegerDivider = ((PCLKx) / (8 * (hirda->Init.BaudRate)))
                                           - FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8) + 0.5 */

  uint32_t WordLength;                /*!< Specifies the number of data bits transmitted or received in a frame.
                                           This parameter can be a value of @ref IRDA_Word_Length */


  uint32_t Parity;                   /*!< Specifies the parity mode.
                                           This parameter can be a value of @ref IRDA_Parity
                                           @note When parity is enabled, the computed parity is inserted
                                                 at the MSB position of the transmitted data (9th bit when
                                                 the word length is set to 9 data bits; 8th bit when the
                                                 word length is set to 8 data bits). */
 
  uint32_t Mode;                      /*!< Specifies wether the Receive or Transmit mode is enabled or disabled.
                                           This parameter can be a value of @ref IRDA_Mode */
                                            
  uint8_t  Prescaler;                 /*!< Specifies the Prescaler */
  
  uint32_t IrDAMode;                  /*!< Specifies the IrDA mode
                                           This parameter can be a value of @ref IrDA_Low_Power */
}IRDA_InitTypeDef;

/** 
  * @brief HAL State structures definition  
  */ 
typedef enum
{
  HAL_IRDA_STATE_RESET             = 0x00,    /*!< Peripheral is not yet Initialized */
  HAL_IRDA_STATE_READY             = 0x01,    /*!< Peripheral Initialized and ready for use */
  HAL_IRDA_STATE_BUSY              = 0x02,    /*!< an internal process is ongoing */
  HAL_IRDA_STATE_BUSY_TX           = 0x12,    /*!< Data Transmission process is ongoing */
  HAL_IRDA_STATE_BUSY_RX           = 0x22,    /*!< Data Reception process is ongoing */
  HAL_IRDA_STATE_BUSY_TX_RX        = 0x32,    /*!< Data Transmission and Reception process is ongoing */
  HAL_IRDA_STATE_TIMEOUT           = 0x03,    /*!< Timeout state */
  HAL_IRDA_STATE_ERROR             = 0x04     /*!< Error */
}HAL_IRDA_StateTypeDef;

/** 
  * @brief  HAL IRDA Error Code structure definition  
  */ 
typedef enum
{
  HAL_IRDA_ERROR_NONE      = 0x00,    /*!< No error            */
  HAL_IRDA_ERROR_PE        = 0x01,    /*!< Parity error        */
  HAL_IRDA_ERROR_NE        = 0x02,    /*!< Noise error         */
  HAL_IRDA_ERROR_FE        = 0x04,    /*!< frame error         */
  HAL_IRDA_ERROR_ORE       = 0x08,    /*!< Overrun error       */
  HAL_IRDA_ERROR_DMA       = 0x10     /*!< DMA transfer error  */
}HAL_IRDA_ErrorTypeDef;

/** 
  * @brief  IRDA handle Structure definition  
  */  
typedef struct
{
  USART_TypeDef               *Instance;        /* USART registers base address       */
  
  IRDA_InitTypeDef            Init;             /* IRDA communication parameters      */
  
  uint8_t                     *pTxBuffPtr;      /* Pointer to IRDA Tx transfer Buffer */
  
  uint16_t                    TxXferSize;       /* IRDA Tx Transfer size              */
  
  uint16_t                    TxXferCount;      /* IRDA Tx Transfer Counter           */
  
  uint8_t                     *pRxBuffPtr;      /* Pointer to IRDA Rx transfer Buffer */
  
  uint16_t                    RxXferSize;       /* IRDA Rx Transfer size              */
  
  uint16_t                    RxXferCount;      /* IRDA Rx Transfer Counter           */  
  
  DMA_HandleTypeDef           *hdmatx;          /* IRDA Tx DMA Handle parameters      */
    
  DMA_HandleTypeDef           *hdmarx;          /* IRDA Rx DMA Handle parameters      */
  
  HAL_LockTypeDef             Lock;            /* Locking object                     */
  
  __IO HAL_IRDA_StateTypeDef  State;           /* IRDA communication state            */
  
  __IO HAL_IRDA_ErrorTypeDef  ErrorCode;        /* IRDA Error code                    */
  
}IRDA_HandleTypeDef;

/* Exported constants --------------------------------------------------------*/
/** @defgroup IRDA_Exported_Constants
  * @{
  */

/** @defgroup IRDA_Word_Length 
  * @{
  */
#define IRDA_WORDLENGTH_8B                  ((uint32_t)0x00000000)
#define IRDA_WORDLENGTH_9B                  ((uint32_t)USART_CR1_M)
#define IS_IRDA_WORD_LENGTH(LENGTH) (((LENGTH) == IRDA_WORDLENGTH_8B) || \
                                     ((LENGTH) == IRDA_WORDLENGTH_9B))
/**
  * @}
  */


/** @defgroup IRDA_Parity 
  * @{
  */ 
#define IRDA_PARITY_NONE                    ((uint32_t)0x00000000)
#define IRDA_PARITY_EVEN                    ((uint32_t)USART_CR1_PCE)
#define IRDA_PARITY_ODD                     ((uint32_t)(USART_CR1_PCE | USART_CR1_PS)) 
#define IS_IRDA_PARITY(PARITY) (((PARITY) == IRDA_PARITY_NONE) || \
                                ((PARITY) == IRDA_PARITY_EVEN) || \
                                ((PARITY) == IRDA_PARITY_ODD))
/**
  * @}
  */ 


/** @defgroup IRDA_Mode 
  * @{
  */ 
#define IRDA_MODE_RX                        ((uint32_t)USART_CR1_RE)
#define IRDA_MODE_TX                        ((uint32_t)USART_CR1_TE)
#define IRDA_MODE_TX_RX                     ((uint32_t)(USART_CR1_TE |USART_CR1_RE))
#define IS_IRDA_MODE(MODE) ((((MODE) & (uint32_t)0x0000FFF3) == 0x00) && ((MODE) != (uint32_t)0x000000))
/**
  * @}
  */

/** @defgroup IrDA_Low_Power 
  * @{
  */
#define IRDA_POWERMODE_LOWPOWER                  ((uint32_t)USART_CR3_IRLP)
#define IRDA_POWERMODE_NORMAL                    ((uint32_t)0x00000000)
#define IS_IRDA_POWERMODE(MODE) (((MODE) == IRDA_POWERMODE_LOWPOWER) || \
                                 ((MODE) == IRDA_POWERMODE_NORMAL))
/**
  * @}
  */

/** @defgroup IRDA_Flags 
  *        Elements values convention: 0xXXXX
  *           - 0xXXXX  : Flag mask in the SR register
  * @{
  */
#define IRDA_FLAG_TXE                       ((uint32_t)0x00000080)
#define IRDA_FLAG_TC                        ((uint32_t)0x00000040)
#define IRDA_FLAG_RXNE                      ((uint32_t)0x00000020)
#define IRDA_FLAG_IDLE                      ((uint32_t)0x00000010)
#define IRDA_FLAG_ORE                       ((uint32_t)0x00000008)
#define IRDA_FLAG_NE                        ((uint32_t)0x00000004)
#define IRDA_FLAG_FE                        ((uint32_t)0x00000002)
#define IRDA_FLAG_PE                        ((uint32_t)0x00000001)
/**
  * @}
  */
  
/** @defgroup IRDA_Interrupt_definition 
  *        Elements values convention: 0xY000XXXX
  *           - XXXX  : Interrupt mask in the XX register
  *           - Y  : Interrupt source register (2bits)
  *                 - 01: CR1 register
  *                 - 10: CR2 register
  *                 - 11: CR3 register
  *
  * @{
  */
  
#define IRDA_IT_PE                          ((uint32_t)0x10000100)
#define IRDA_IT_TXE                         ((uint32_t)0x10000080)
#define IRDA_IT_TC                          ((uint32_t)0x10000040)
#define IRDA_IT_RXNE                        ((uint32_t)0x10000020)
#define IRDA_IT_IDLE                        ((uint32_t)0x10000010)

#define IRDA_IT_LBD                         ((uint32_t)0x20000040)

#define IRDA_IT_CTS                         ((uint32_t)0x30000400)
#define IRDA_IT_ERR                         ((uint32_t)0x30000001)

/**
  * @}
  */

/**
  * @}
  */
  
/* Exported macro ------------------------------------------------------------*/

/** @brief Reset IRDA handle state
  * @param  __HANDLE__: specifies the IRDA Handle.
  * @retval None
  */
#define __HAL_IRDA_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_IRDA_STATE_RESET)

/** @brief  Flushs the IRDA DR register 
  * @param  __HANDLE__: specifies the IRDA Handle.
  */
#define __HAL_IRDA_FLUSH_DRREGISTER(__HANDLE__) ((__HANDLE__)->Instance->DR)

/** @brief  Checks whether the specified IRDA flag is set or not.
  * @param  __HANDLE__: specifies the USART Handle.
  *         This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or 
  *         UART peripheral.
  * @param  __FLAG__: specifies the flag to check.
  *        This parameter can be one of the following values:
  *            @arg IRDA_FLAG_TXE:  Transmit data register empty flag
  *            @arg IRDA_FLAG_TC:   Transmission Complete flag
  *            @arg IRDA_FLAG_RXNE: Receive data register not empty flag
  *            @arg IRDA_FLAG_IDLE: Idle Line detection flag
  *            @arg IRDA_FLAG_ORE:  OverRun Error flag
  *            @arg IRDA_FLAG_NE:   Noise Error flag
  *            @arg IRDA_FLAG_FE:   Framing Error flag
  *            @arg IRDA_FLAG_PE:   Parity Error flag
  * @retval The new state of __FLAG__ (TRUE or FALSE).
  */
#define __HAL_IRDA_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))

/** @brief  Clears the specified IRDA pending flag.
  * @param  __HANDLE__: specifies the USART Handle.
  *         This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or 
  *         UART peripheral.
  * @param  __FLAG__: specifies the flag to check.
  *          This parameter can be any combination of the following values:
  *            @arg IRDA_FLAG_TC:   Transmission Complete flag.
  *            @arg IRDA_FLAG_RXNE: Receive data register not empty flag.
  *   
  * @note   PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun 
  *          error) and IDLE (Idle line detected) flags are cleared by software 
  *          sequence: a read operation to USART_SR register followed by a read
  *          operation to USART_DR register.
  * @note   RXNE flag can be also cleared by a read to the USART_DR register.
  * @note   TC flag can be also cleared by software sequence: a read operation to 
  *          USART_SR register followed by a write operation to USART_DR register.
  * @note   TXE flag is cleared only by a write to the USART_DR register.
  *   
  * @retval None
  */
#define __HAL_IRDA_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR &= ~(__FLAG__))


/** @brief  Enables or disables the specified IRDA interrupt.
  * @param  __HANDLE__: specifies the USART Handle.
  *         This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or 
  *         UART peripheral.
  * @param  __INTERRUPT__: specifies the IRDA interrupt source to check.
  *          This parameter can be one of the following values:
  *            @arg IRDA_IT_TXE:  Transmit Data Register empty interrupt
  *            @arg IRDA_IT_TC:   Transmission complete interrupt
  *            @arg IRDA_IT_RXNE: Receive Data register not empty interrupt
  *            @arg IRDA_IT_IDLE: Idle line detection interrupt
  *            @arg IRDA_IT_PE:   Parity Error interrupt
  *            @arg IRDA_IT_ERR:  Error interrupt(Frame error, noise error, overrun error)
  * @param  NewState: new state of the specified IRDA interrupt.
  *          This parameter can be: ENABLE or DISABLE.
  * @retval None
  */
#define IRDA_IT_MASK  ((uint32_t)0x0000FFFF)
#define __HAL_IRDA_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 |= ((__INTERRUPT__) & IRDA_IT_MASK)): \
                                                        (((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 |=  ((__INTERRUPT__) & IRDA_IT_MASK)): \
                                                        ((__HANDLE__)->Instance->CR3 |= ((__INTERRUPT__) & IRDA_IT_MASK)))
#define __HAL_IRDA_DISABLE_IT(__HANDLE__, __INTERRUPT__)  ((((__INTERRUPT__) >> 28) == 1)? ((__HANDLE__)->Instance->CR1 &= ~((__INTERRUPT__) & IRDA_IT_MASK)): \
                                                        (((__INTERRUPT__) >> 28) == 2)? ((__HANDLE__)->Instance->CR2 &= ~((__INTERRUPT__) & IRDA_IT_MASK)): \
                                                        ((__HANDLE__)->Instance->CR3 &= ~ ((__INTERRUPT__) & IRDA_IT_MASK)))
    
/** @brief  Checks whether the specified IRDA interrupt has occurred or not.
  * @param  __HANDLE__: specifies the USART Handle.
  *         This parameter can be USARTx where x: 1, 2, 3, 4, 5, 6, 7 or 8 to select the USART or 
  *         UART peripheral.
  * @param  __IT__: specifies the IRDA interrupt source to check.
  *          This parameter can be one of the following values:
  *            @arg IRDA_IT_TXE: Transmit Data Register empty interrupt
  *            @arg IRDA_IT_TC:  Transmission complete interrupt
  *            @arg IRDA_IT_RXNE: Receive Data register not empty interrupt
  *            @arg IRDA_IT_IDLE: Idle line detection interrupt
  *            @arg USART_IT_ERR: Error interrupt
  *            @arg IRDA_IT_PE: Parity Error interrupt
  * @retval The new state of __IT__ (TRUE or FALSE).
  */
#define __HAL_IRDA_GET_IT_SOURCE(__HANDLE__, __IT__) (((((__IT__) >> 28) == 1)? (__HANDLE__)->Instance->CR1:(((((uint32_t)(__IT__)) >> 28) == 2)? \
                                                      (__HANDLE__)->Instance->CR2 : (__HANDLE__)->Instance->CR3)) & (((uint32_t)(__IT__)) & IRDA_IT_MASK))



#define __IRDA_ENABLE(__HANDLE__)                   ( (__HANDLE__)->Instance->CR1 |=  USART_CR1_UE)
#define __IRDA_DISABLE(__HANDLE__)                  ( (__HANDLE__)->Instance->CR1 &=  ~USART_CR1_UE)
    
#define __DIV(_PCLK_, _BAUD_)                       (((_PCLK_)*25)/(4*(_BAUD_)))
#define __DIVMANT(_PCLK_, _BAUD_)                   (__DIV((_PCLK_), (_BAUD_))/100)
#define __DIVFRAQ(_PCLK_, _BAUD_)                   (((__DIV((_PCLK_), (_BAUD_)) - (__DIVMANT((_PCLK_), (_BAUD_)) * 100)) * 16 + 50) / 100)
#define __IRDA_BRR(_PCLK_, _BAUD_)                  ((__DIVMANT((_PCLK_), (_BAUD_)) << 4)|(__DIVFRAQ((_PCLK_), (_BAUD_)) & 0x0F))

#define IS_IRDA_BAUDRATE(BAUDRATE) ((BAUDRATE) < 115201)
                                

/* Exported functions --------------------------------------------------------*/
/* Initialization/de-initialization functions  **********************************/
HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda);
HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda);
void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda);
void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda);

/* IO operation functions *******************************************************/
HAL_StatusTypeDef HAL_IRDA_Transmit(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_IRDA_Receive(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_IRDA_Receive_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_IRDA_Receive_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size);
void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda);
void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda);
void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda);
void HAL_IRDA_ErrorCallback(IRDA_HandleTypeDef *hirda);

/* Peripheral State functions  **************************************************/
HAL_IRDA_StateTypeDef HAL_IRDA_GetState(IRDA_HandleTypeDef *hirda);
uint32_t              HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda);

/**
  * @}
  */ 

/**
  * @}
  */ 
  
#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_HAL_IRDA_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/