stm32lib/STM32L0xx_HAL_Driver/Inc/stm32l0xx_hal_usart.h

/**
  ******************************************************************************
  * @file    stm32l0xx_hal_usart.h
  * @author  MCD Application Team
  * @brief   Header file of USART HAL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32L0xx_HAL_USART_H
#define STM32L0xx_HAL_USART_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32l0xx_hal_def.h"

/** @addtogroup STM32L0xx_HAL_Driver
  * @{
  */

/** @addtogroup USART
  * @{
  */

/* Exported types ------------------------------------------------------------*/
/** @defgroup USART_Exported_Types USART Exported Types
  * @{
  */

/**
  * @brief USART Init Structure definition
  */
typedef struct
{
  uint32_t BaudRate;                  /*!< This member configures the Usart communication baud rate.
                                           The baud rate is computed using the following formula:
                                              Baud Rate Register[15:4] = ((2 * fclk_pres) / ((huart->Init.BaudRate)))[15:4]
                                              Baud Rate Register[3]    = 0
                                              Baud Rate Register[2:0]  =  (((2 * fclk_pres) / ((huart->Init.BaudRate)))[3:0]) >> 1
                                              where fclk_pres is the USART input clock frequency
                                           @note  Oversampling by 8 is systematically applied to achieve high baud rates. */

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

  uint32_t StopBits;                  /*!< Specifies the number of stop bits transmitted.
                                           This parameter can be a value of @ref USART_Stop_Bits. */

  uint32_t Parity;                   /*!< Specifies the parity mode.
                                           This parameter can be a value of @ref USART_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 whether the Receive or Transmit mode is enabled or disabled.
                                           This parameter can be a value of @ref USART_Mode. */

  uint32_t CLKPolarity;               /*!< Specifies the steady state of the serial clock.
                                           This parameter can be a value of @ref USART_Clock_Polarity. */

  uint32_t CLKPhase;                  /*!< Specifies the clock transition on which the bit capture is made.
                                           This parameter can be a value of @ref USART_Clock_Phase. */

  uint32_t CLKLastBit;                /*!< Specifies whether the clock pulse corresponding to the last transmitted
                                           data bit (MSB) has to be output on the SCLK pin in synchronous mode.
                                           This parameter can be a value of @ref USART_Last_Bit. */

} USART_InitTypeDef;

/**
  * @brief HAL USART State structures definition
  */
typedef enum
{
  HAL_USART_STATE_RESET             = 0x00U,    /*!< Peripheral is not initialized                  */
  HAL_USART_STATE_READY             = 0x01U,    /*!< Peripheral Initialized and ready for use       */
  HAL_USART_STATE_BUSY              = 0x02U,    /*!< an internal process is ongoing                 */
  HAL_USART_STATE_BUSY_TX           = 0x12U,    /*!< Data Transmission process is ongoing           */
  HAL_USART_STATE_BUSY_RX           = 0x22U,    /*!< Data Reception process is ongoing              */
  HAL_USART_STATE_BUSY_TX_RX        = 0x32U,    /*!< Data Transmission Reception process is ongoing */
  HAL_USART_STATE_TIMEOUT           = 0x03U,    /*!< Timeout state                                  */
  HAL_USART_STATE_ERROR             = 0x04U     /*!< Error                                          */
} HAL_USART_StateTypeDef;

/**
  * @brief  USART clock sources definitions
  */
typedef enum
{
  USART_CLOCKSOURCE_PCLK1      = 0x00U,    /*!< PCLK1 clock source     */
  USART_CLOCKSOURCE_PCLK2      = 0x01U,    /*!< PCLK2 clock source     */
  USART_CLOCKSOURCE_HSI        = 0x02U,    /*!< HSI clock source       */
  USART_CLOCKSOURCE_SYSCLK     = 0x04U,    /*!< SYSCLK clock source    */
  USART_CLOCKSOURCE_LSE        = 0x08U,    /*!< LSE clock source       */
  USART_CLOCKSOURCE_UNDEFINED  = 0x10U     /*!< Undefined clock source */
} USART_ClockSourceTypeDef;

/**
  * @brief  USART handle Structure definition
  */
typedef struct __USART_HandleTypeDef
{
  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           */

  uint16_t                      Mask;                    /*!< USART Rx RDR register mask          */

  void (*RxISR)(struct __USART_HandleTypeDef *husart);   /*!< Function pointer on Rx IRQ handler  */

  void (*TxISR)(struct __USART_HandleTypeDef *husart);   /*!< Function pointer on Tx IRQ handler  */

  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                    */

#if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
  void (* TxHalfCpltCallback)(struct __USART_HandleTypeDef *husart);        /*!< USART Tx Half Complete Callback        */
  void (* TxCpltCallback)(struct __USART_HandleTypeDef *husart);            /*!< USART Tx Complete Callback             */
  void (* RxHalfCpltCallback)(struct __USART_HandleTypeDef *husart);        /*!< USART Rx Half Complete Callback        */
  void (* RxCpltCallback)(struct __USART_HandleTypeDef *husart);            /*!< USART Rx Complete Callback             */
  void (* TxRxCpltCallback)(struct __USART_HandleTypeDef *husart);          /*!< USART Tx Rx Complete Callback          */
  void (* ErrorCallback)(struct __USART_HandleTypeDef *husart);             /*!< USART Error Callback                   */
  void (* AbortCpltCallback)(struct __USART_HandleTypeDef *husart);         /*!< USART Abort Complete Callback          */

  void (* MspInitCallback)(struct __USART_HandleTypeDef *husart);           /*!< USART Msp Init callback                */
  void (* MspDeInitCallback)(struct __USART_HandleTypeDef *husart);         /*!< USART Msp DeInit callback              */
#endif  /* USE_HAL_USART_REGISTER_CALLBACKS */

} USART_HandleTypeDef;

#if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
/**
  * @brief  HAL USART Callback ID enumeration definition
  */
typedef enum
{
  HAL_USART_TX_HALFCOMPLETE_CB_ID         = 0x00U,    /*!< USART Tx Half Complete Callback ID        */
  HAL_USART_TX_COMPLETE_CB_ID             = 0x01U,    /*!< USART Tx Complete Callback ID             */
  HAL_USART_RX_HALFCOMPLETE_CB_ID         = 0x02U,    /*!< USART Rx Half Complete Callback ID        */
  HAL_USART_RX_COMPLETE_CB_ID             = 0x03U,    /*!< USART Rx Complete Callback ID             */
  HAL_USART_TX_RX_COMPLETE_CB_ID          = 0x04U,    /*!< USART Tx Rx Complete Callback ID          */
  HAL_USART_ERROR_CB_ID                   = 0x05U,    /*!< USART Error Callback ID                   */
  HAL_USART_ABORT_COMPLETE_CB_ID          = 0x06U,    /*!< USART Abort Complete Callback ID          */

  HAL_USART_MSPINIT_CB_ID                 = 0x09U,    /*!< USART MspInit callback ID                 */
  HAL_USART_MSPDEINIT_CB_ID               = 0x0AU     /*!< USART MspDeInit callback ID               */

} HAL_USART_CallbackIDTypeDef;

/**
  * @brief  HAL USART Callback pointer definition
  */
typedef  void (*pUSART_CallbackTypeDef)(USART_HandleTypeDef *husart);  /*!< pointer to an USART callback function */

#endif /* USE_HAL_USART_REGISTER_CALLBACKS */

/**
  * @}
  */

/* Exported constants --------------------------------------------------------*/
/** @defgroup USART_Exported_Constants USART Exported Constants
  * @{
  */

/** @defgroup USART_Error_Definition   USART Error Definition
  * @{
  */
#define HAL_USART_ERROR_NONE             ((uint32_t)0x00000000U)    /*!< No error                  */
#define HAL_USART_ERROR_PE               ((uint32_t)0x00000001U)    /*!< Parity error              */
#define HAL_USART_ERROR_NE               ((uint32_t)0x00000002U)    /*!< Noise error               */
#define HAL_USART_ERROR_FE               ((uint32_t)0x00000004U)    /*!< Frame error               */
#define HAL_USART_ERROR_ORE              ((uint32_t)0x00000008U)    /*!< Overrun error             */
#define HAL_USART_ERROR_DMA              ((uint32_t)0x00000010U)    /*!< DMA transfer error        */
#if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
#define HAL_USART_ERROR_INVALID_CALLBACK ((uint32_t)0x00000040U)    /*!< Invalid Callback error    */
#endif /* USE_HAL_USART_REGISTER_CALLBACKS */
/**
  * @}
  */

/** @defgroup USART_Stop_Bits  USART Number of Stop Bits
  * @{
  */
#define USART_STOPBITS_0_5                   USART_CR2_STOP_0                     /*!< USART frame with 0.5 stop bit  */
#define USART_STOPBITS_1                     0x00000000U                          /*!< USART frame with 1 stop bit    */
#define USART_STOPBITS_1_5                  (USART_CR2_STOP_0 | USART_CR2_STOP_1) /*!< USART frame with 1.5 stop bits */
#define USART_STOPBITS_2                     USART_CR2_STOP_1                     /*!< USART frame with 2 stop bits   */
/**
  * @}
  */

/** @defgroup USART_Parity    USART Parity
  * @{
  */
#define USART_PARITY_NONE                   0x00000000U                      /*!< No parity   */
#define USART_PARITY_EVEN                   USART_CR1_PCE                    /*!< Even parity */
#define USART_PARITY_ODD                    (USART_CR1_PCE | USART_CR1_PS)   /*!< Odd parity  */
/**
  * @}
  */

/** @defgroup USART_Mode   USART Mode
  * @{
  */
#define USART_MODE_RX                       USART_CR1_RE                    /*!< RX mode        */
#define USART_MODE_TX                       USART_CR1_TE                    /*!< TX mode        */
#define USART_MODE_TX_RX                    (USART_CR1_TE |USART_CR1_RE)    /*!< RX and TX mode */
/**
  * @}
  */

/** @defgroup USART_Over_Sampling USART Over Sampling
  * @{
  */
#define USART_OVERSAMPLING_16               0x00000000U         /*!< Oversampling by 16 */
#define USART_OVERSAMPLING_8                USART_CR1_OVER8     /*!< Oversampling by 8  */
/**
  * @}
  */

/** @defgroup USART_Clock  USART Clock
  * @{
  */
#define USART_CLOCK_DISABLE                 0x00000000U       /*!< USART clock disable */
#define USART_CLOCK_ENABLE                  USART_CR2_CLKEN   /*!< USART clock enable  */
/**
  * @}
  */

/** @defgroup USART_Clock_Polarity  USART Clock Polarity
  * @{
  */
#define USART_POLARITY_LOW                  0x00000000U      /*!< Driver enable signal is active high */
#define USART_POLARITY_HIGH                 USART_CR2_CPOL   /*!< Driver enable signal is active low  */
/**
  * @}
  */

/** @defgroup USART_Clock_Phase   USART Clock Phase
  * @{
  */
#define USART_PHASE_1EDGE                   0x00000000U      /*!< USART frame phase on first clock transition  */
#define USART_PHASE_2EDGE                   USART_CR2_CPHA   /*!< USART frame phase on second clock transition */
/**
  * @}
  */

/** @defgroup USART_Last_Bit  USART Last Bit
  * @{
  */
#define USART_LASTBIT_DISABLE               0x00000000U      /*!< USART frame last data bit clock pulse not output to SCLK pin */
#define USART_LASTBIT_ENABLE                USART_CR2_LBCL   /*!< USART frame last data bit clock pulse output to SCLK pin     */
/**
  * @}
  */


/** @defgroup USART_Request_Parameters  USART Request Parameters
  * @{
  */
#define USART_RXDATA_FLUSH_REQUEST        USART_RQR_RXFRQ        /*!< Receive Data flush Request  */
#define USART_TXDATA_FLUSH_REQUEST        USART_RQR_TXFRQ        /*!< Transmit data flush Request */
/**
  * @}
  */

/** @defgroup USART_Flags      USART Flags
  *        Elements values convention: 0xXXXX
  *           - 0xXXXX  : Flag mask in the ISR register
  * @{
  */
#define USART_FLAG_REACK                    USART_ISR_REACK         /*!< USART receive enable acknowledge flag      */
#define USART_FLAG_TEACK                    USART_ISR_TEACK         /*!< USART transmit enable acknowledge flag     */
#define USART_FLAG_BUSY                     USART_ISR_BUSY          /*!< USART busy flag                            */
#define USART_FLAG_TXE                      USART_ISR_TXE           /*!< USART transmit data register empty         */
#define USART_FLAG_TC                       USART_ISR_TC            /*!< USART transmission complete                */
#define USART_FLAG_RXNE                     USART_ISR_RXNE          /*!< USART read data register not empty         */
#define USART_FLAG_IDLE                     USART_ISR_IDLE          /*!< USART idle flag                            */
#define USART_FLAG_ORE                      USART_ISR_ORE           /*!< USART overrun error                        */
#define USART_FLAG_NE                       USART_ISR_NE            /*!< USART noise error                          */
#define USART_FLAG_FE                       USART_ISR_FE            /*!< USART frame error                          */
#define USART_FLAG_PE                       USART_ISR_PE            /*!< USART parity error                         */
/**
  * @}
  */

/** @defgroup USART_Interrupt_definition USART Interrupts Definition
  *        Elements values convention: 0000ZZZZ0XXYYYYYb
  *           - YYYYY  : Interrupt source position in the XX register (5bits)
  *           - XX  : Interrupt source register (2bits)
  *                 - 01: CR1 register
  *                 - 10: CR2 register
  *                 - 11: CR3 register
  *           - ZZZZ  : Flag position in the ISR register(4bits)
  * @{
  */

#define USART_IT_PE                          0x0028U     /*!< USART parity error interruption                 */
#define USART_IT_TXE                         0x0727U     /*!< USART transmit data register empty interruption */
#define USART_IT_TC                          0x0626U     /*!< USART transmission complete interruption        */
#define USART_IT_RXNE                        0x0525U     /*!< USART read data register not empty interruption */
#define USART_IT_IDLE                        0x0424U     /*!< USART idle interruption                         */
#define USART_IT_ERR                         0x0060U     /*!< USART error interruption                        */
#define USART_IT_ORE                         0x0300U     /*!< USART overrun error interruption                */
#define USART_IT_NE                          0x0200U     /*!< USART noise error interruption                  */
#define USART_IT_FE                          0x0100U     /*!< USART frame error interruption                  */

/**
  * @}
  */

/** @defgroup USART_IT_CLEAR_Flags    USART Interruption Clear Flags
  * @{
  */
#define USART_CLEAR_PEF                       USART_ICR_PECF            /*!< Parity Error Clear Flag             */
#define USART_CLEAR_FEF                       USART_ICR_FECF            /*!< Framing Error Clear Flag            */
#define USART_CLEAR_NEF                       USART_ICR_NCF             /*!< Noise Error detected Clear Flag     */
#define USART_CLEAR_OREF                      USART_ICR_ORECF           /*!< OverRun Error Clear Flag            */
#define USART_CLEAR_IDLEF                     USART_ICR_IDLECF          /*!< IDLE line detected Clear Flag       */
#define USART_CLEAR_TCF                       USART_ICR_TCCF            /*!< Transmission Complete Clear Flag    */
/**
  * @}
  */

/** @defgroup USART_Interruption_Mask    USART Interruption Flags Mask
  * @{
  */
#define USART_IT_MASK                             0x001FU     /*!< USART interruptions flags mask */
#define USART_CR_MASK                             0x00E0U     /*!< USART control register mask */
#define USART_CR_POS                              5U          /*!< USART control register position */
#define USART_ISR_MASK                            0x1F00U     /*!< USART ISR register mask         */
#define USART_ISR_POS                             8U          /*!< USART ISR register position     */
/**
  * @}
  */

/**
  * @}
  */

/* Exported macros -----------------------------------------------------------*/
/** @defgroup USART_Exported_Macros USART Exported Macros
  * @{
  */

/** @brief Reset USART handle state.
  * @param  __HANDLE__ USART handle.
  * @retval None
  */
#if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
#define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__)  do{                                            \
                                                      (__HANDLE__)->State = HAL_USART_STATE_RESET; \
                                                      (__HANDLE__)->MspInitCallback = NULL;        \
                                                      (__HANDLE__)->MspDeInitCallback = NULL;      \
                                                    } while(0U)
#else
#define __HAL_USART_RESET_HANDLE_STATE(__HANDLE__)  ((__HANDLE__)->State = HAL_USART_STATE_RESET)
#endif /* USE_HAL_USART_REGISTER_CALLBACKS */

/** @brief  Flush the USART Data registers
  * @param  __HANDLE__ specifies the USART Handle.
  */
#define __HAL_USART_FLUSH_DRREGISTER(__HANDLE__)                        \
  do{                                                                   \
      SET_BIT((__HANDLE__)->Instance->RQR, USART_RXDATA_FLUSH_REQUEST); \
      SET_BIT((__HANDLE__)->Instance->RQR, USART_TXDATA_FLUSH_REQUEST); \
    } while(0U)

/** @brief  Check whether the specified USART flag is set or not.
  * @param  __HANDLE__ specifies the USART Handle
  * @param  __FLAG__ specifies the flag to check.
  *        This parameter can be one of the following values:
  *            @arg @ref USART_FLAG_REACK Receive enable acknowledge flag
  *            @arg @ref USART_FLAG_TEACK Transmit enable acknowledge flag
  *            @arg @ref USART_FLAG_BUSY  Busy flag
  *            @arg @ref USART_FLAG_TXE   Transmit data register empty flag
  *            @arg @ref USART_FLAG_TC    Transmission Complete flag
  *            @arg @ref USART_FLAG_RXNE  Receive data register not empty flag
  *            @arg @ref USART_FLAG_IDLE  Idle Line detection flag
  *            @arg @ref USART_FLAG_ORE   OverRun Error flag
  *            @arg @ref USART_FLAG_NE    Noise Error flag
  *            @arg @ref USART_FLAG_FE    Framing Error flag
  *            @arg @ref USART_FLAG_PE    Parity Error flag
  * @retval The new state of __FLAG__ (TRUE or FALSE).
  */
#define __HAL_USART_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->ISR & (__FLAG__)) == (__FLAG__))

/** @brief  Clear the specified USART pending flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @param  __FLAG__ specifies the flag to check.
  *          This parameter can be any combination of the following values:
  *            @arg @ref USART_CLEAR_PEF      Parity Error Clear Flag
  *            @arg @ref USART_CLEAR_FEF      Framing Error Clear Flag
  *            @arg @ref USART_CLEAR_NEF      Noise detected Clear Flag
  *            @arg @ref USART_CLEAR_OREF     Overrun Error Clear Flag
  *            @arg @ref USART_CLEAR_IDLEF    IDLE line detected Clear Flag
  *            @arg @ref USART_CLEAR_TCF      Transmission Complete Clear Flag
  * @retval None
  */
#define __HAL_USART_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->ICR = (__FLAG__))

/** @brief  Clear the USART PE pending flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_CLEAR_PEFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_PEF)

/** @brief  Clear the USART FE pending flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_CLEAR_FEFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_FEF)

/** @brief  Clear the USART NE pending flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_CLEAR_NEFLAG(__HANDLE__)  __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_NEF)

/** @brief  Clear the USART ORE pending flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_CLEAR_OREFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_OREF)

/** @brief  Clear the USART IDLE pending flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_CLEAR_IDLEFLAG(__HANDLE__)   __HAL_USART_CLEAR_FLAG((__HANDLE__), USART_CLEAR_IDLEF)



/** @brief  Enable the specified USART interrupt.
  * @param  __HANDLE__ specifies the USART Handle.
  * @param  __INTERRUPT__ specifies the USART interrupt source to enable.
  *          This parameter can be one of the following values:
  *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  *            @arg @ref USART_IT_TC    Transmission complete interrupt
  *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  *            @arg @ref USART_IT_PE    Parity Error interrupt
  *            @arg @ref USART_IT_ERR   Error interrupt(Frame error, noise error, overrun error)
  * @retval None
  */
#define __HAL_USART_ENABLE_IT(__HANDLE__, __INTERRUPT__)   (((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 1U)? ((__HANDLE__)->Instance->CR1 |= ((uint32_t)1U << ((__INTERRUPT__) & USART_IT_MASK))): \
                                                            ((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 2U)? ((__HANDLE__)->Instance->CR2 |= ((uint32_t)1U << ((__INTERRUPT__) & USART_IT_MASK))): \
                                                            ((__HANDLE__)->Instance->CR3 |= ((uint32_t)1U << ((__INTERRUPT__) & USART_IT_MASK))))

/** @brief  Disable the specified USART interrupt.
  * @param  __HANDLE__ specifies the USART Handle.
  * @param  __INTERRUPT__ specifies the USART interrupt source to disable.
  *          This parameter can be one of the following values:
  *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  *            @arg @ref USART_IT_TC    Transmission complete interrupt
  *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  *            @arg @ref USART_IT_PE    Parity Error interrupt
  *            @arg @ref USART_IT_ERR   Error interrupt(Frame error, noise error, overrun error)
  * @retval None
  */
#define __HAL_USART_DISABLE_IT(__HANDLE__, __INTERRUPT__)  (((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 1U)? ((__HANDLE__)->Instance->CR1 &= ~ ((uint32_t)1U << ((__INTERRUPT__) & USART_IT_MASK))): \
                                                            ((((__INTERRUPT__) & USART_CR_MASK) >> USART_CR_POS) == 2U)? ((__HANDLE__)->Instance->CR2 &= ~ ((uint32_t)1U << ((__INTERRUPT__) & USART_IT_MASK))): \
                                                            ((__HANDLE__)->Instance->CR3 &= ~ ((uint32_t)1U << ((__INTERRUPT__) & USART_IT_MASK))))


/** @brief  Check whether the specified USART interrupt has occurred or not.
  * @param  __HANDLE__ specifies the USART Handle.
  * @param  __INTERRUPT__ specifies the USART interrupt source to check.
  *          This parameter can be one of the following values:
  *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  *            @arg @ref USART_IT_TC    Transmission complete interrupt
  *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  *            @arg @ref USART_IT_ORE   OverRun Error interrupt
  *            @arg @ref USART_IT_NE    Noise Error interrupt
  *            @arg @ref USART_IT_FE    Framing Error interrupt
  *            @arg @ref USART_IT_PE    Parity Error interrupt
  * @retval The new state of __INTERRUPT__ (SET or RESET).
  */
#define __HAL_USART_GET_IT(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->ISR & ((uint32_t)0x01U << (((__INTERRUPT__) & USART_ISR_MASK)>> USART_ISR_POS))) != 0U) ? SET : RESET)

/** @brief  Check whether the specified USART interrupt source is enabled or not.
  * @param  __HANDLE__ specifies the USART Handle.
  * @param  __INTERRUPT__ specifies the USART interrupt source to check.
  *          This parameter can be one of the following values:
  *            @arg @ref USART_IT_TXE   Transmit Data Register empty interrupt
  *            @arg @ref USART_IT_TC    Transmission complete interrupt
  *            @arg @ref USART_IT_RXNE  Receive Data register not empty interrupt
  *            @arg @ref USART_IT_IDLE  Idle line detection interrupt
  *            @arg @ref USART_IT_ORE   OverRun Error interrupt
  *            @arg @ref USART_IT_NE    Noise Error interrupt
  *            @arg @ref USART_IT_FE    Framing Error interrupt
  *            @arg @ref USART_IT_PE    Parity Error interrupt
  * @retval The new state of __INTERRUPT__ (SET or RESET).
  */
#define __HAL_USART_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((((((uint8_t)(__INTERRUPT__)) >> 0x05U) == 0x01U) ? (__HANDLE__)->Instance->CR1 : \
                                                                (((((uint8_t)(__INTERRUPT__)) >> 0x05U) == 0x02U) ? (__HANDLE__)->Instance->CR2 : \
                                                                (__HANDLE__)->Instance->CR3)) & (0x01U << (((uint16_t)(__INTERRUPT__)) & USART_IT_MASK)))  != 0U) ? SET : RESET)


/** @brief  Clear the specified USART ISR flag, in setting the proper ICR register flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @param  __IT_CLEAR__ specifies the interrupt clear register flag that needs to be set
  *                       to clear the corresponding interrupt.
  *          This parameter can be one of the following values:
  *            @arg @ref USART_CLEAR_PEF      Parity Error Clear Flag
  *            @arg @ref USART_CLEAR_FEF      Framing Error Clear Flag
  *            @arg @ref USART_CLEAR_NEF      Noise detected Clear Flag
  *            @arg @ref USART_CLEAR_OREF     Overrun Error Clear Flag
  *            @arg @ref USART_CLEAR_IDLEF    IDLE line detected Clear Flag
  *            @arg @ref USART_CLEAR_TCF      Transmission Complete Clear Flag
  * @retval None
  */
#define __HAL_USART_CLEAR_IT(__HANDLE__, __IT_CLEAR__) ((__HANDLE__)->Instance->ICR = (uint32_t)(__IT_CLEAR__))

/** @brief  Set a specific USART request flag.
  * @param  __HANDLE__ specifies the USART Handle.
  * @param  __REQ__ specifies the request flag to set.
  *          This parameter can be one of the following values:
  *            @arg @ref USART_RXDATA_FLUSH_REQUEST Receive Data flush Request
  *            @arg @ref USART_TXDATA_FLUSH_REQUEST Transmit data flush Request
  *
  * @retval None
  */
#define __HAL_USART_SEND_REQ(__HANDLE__, __REQ__)      ((__HANDLE__)->Instance->RQR |= (__REQ__))

/** @brief  Enable the USART one bit sample method.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_ONE_BIT_SAMPLE_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3|= USART_CR3_ONEBIT)

/** @brief  Disable the USART one bit sample method.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_ONE_BIT_SAMPLE_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR3 &= ~USART_CR3_ONEBIT)

/** @brief  Enable USART.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_ENABLE(__HANDLE__)                 ((__HANDLE__)->Instance->CR1 |= USART_CR1_UE)

/** @brief  Disable USART.
  * @param  __HANDLE__ specifies the USART Handle.
  * @retval None
  */
#define __HAL_USART_DISABLE(__HANDLE__)                ((__HANDLE__)->Instance->CR1 &= ~USART_CR1_UE)

/**
  * @}
  */

/* Private macros --------------------------------------------------------*/
/** @defgroup USART_Private_Macros   USART Private Macros
  * @{
  */

/** @brief  BRR division operation to set BRR register in 8-bit oversampling mode.
  * @param  __PCLK__ USART clock.
  * @param  __BAUD__ Baud rate set by the user.
  * @retval Division result
  */
#define USART_DIV_SAMPLING8(__PCLK__, __BAUD__)   ((((__PCLK__)*2U) + ((__BAUD__)/2U)) / (__BAUD__))

/** @brief  Check USART Baud rate.
  * @param  __BAUDRATE__ Baudrate specified by the user.
  *         The maximum Baud Rate is derived from the maximum clock on L0 (i.e. 32 MHz)
  *         divided by the smallest oversampling used on the USART (i.e. 8)
  * @retval SET (__BAUDRATE__ is valid) or RESET (__BAUDRATE__ is invalid)  */
#define IS_USART_BAUDRATE(__BAUDRATE__) ((__BAUDRATE__) <= 4000000U)

/**
  * @brief Ensure that USART frame number of stop bits is valid.
  * @param __STOPBITS__ USART frame number of stop bits.
  * @retval SET (__STOPBITS__ is valid) or RESET (__STOPBITS__ is invalid)
  */
#define IS_USART_STOPBITS(__STOPBITS__) (((__STOPBITS__) == USART_STOPBITS_0_5) || \
                                         ((__STOPBITS__) == USART_STOPBITS_1)   || \
                                         ((__STOPBITS__) == USART_STOPBITS_1_5) || \
                                         ((__STOPBITS__) == USART_STOPBITS_2))

/**
  * @brief Ensure that USART frame parity is valid.
  * @param __PARITY__ USART frame parity.
  * @retval SET (__PARITY__ is valid) or RESET (__PARITY__ is invalid)
  */
#define IS_USART_PARITY(__PARITY__) (((__PARITY__) == USART_PARITY_NONE) || \
                                     ((__PARITY__) == USART_PARITY_EVEN) || \
                                     ((__PARITY__) == USART_PARITY_ODD))

/**
  * @brief Ensure that USART communication mode is valid.
  * @param __MODE__ USART communication mode.
  * @retval SET (__MODE__ is valid) or RESET (__MODE__ is invalid)
  */
#define IS_USART_MODE(__MODE__) ((((__MODE__) & 0xFFFFFFF3U) == 0x00U) && ((__MODE__) != 0x00U))

/**
  * @brief Ensure that USART oversampling is valid.
  * @param __SAMPLING__ USART oversampling.
  * @retval SET (__SAMPLING__ is valid) or RESET (__SAMPLING__ is invalid)
  */
#define IS_USART_OVERSAMPLING(__SAMPLING__) (((__SAMPLING__) == USART_OVERSAMPLING_16) || \
                                             ((__SAMPLING__) == USART_OVERSAMPLING_8))

/**
  * @brief Ensure that USART clock state is valid.
  * @param __CLOCK__ USART clock state.
  * @retval SET (__CLOCK__ is valid) or RESET (__CLOCK__ is invalid)
  */
#define IS_USART_CLOCK(__CLOCK__) (((__CLOCK__) == USART_CLOCK_DISABLE) || \
                                   ((__CLOCK__) == USART_CLOCK_ENABLE))

/**
  * @brief Ensure that USART frame polarity is valid.
  * @param __CPOL__ USART frame polarity.
  * @retval SET (__CPOL__ is valid) or RESET (__CPOL__ is invalid)
  */
#define IS_USART_POLARITY(__CPOL__) (((__CPOL__) == USART_POLARITY_LOW) || ((__CPOL__) == USART_POLARITY_HIGH))

/**
  * @brief Ensure that USART frame phase is valid.
  * @param __CPHA__ USART frame phase.
  * @retval SET (__CPHA__ is valid) or RESET (__CPHA__ is invalid)
  */
#define IS_USART_PHASE(__CPHA__) (((__CPHA__) == USART_PHASE_1EDGE) || ((__CPHA__) == USART_PHASE_2EDGE))

/**
  * @brief Ensure that USART frame last bit clock pulse setting is valid.
  * @param __LASTBIT__ USART frame last bit clock pulse setting.
  * @retval SET (__LASTBIT__ is valid) or RESET (__LASTBIT__ is invalid)
  */
#define IS_USART_LASTBIT(__LASTBIT__) (((__LASTBIT__) == USART_LASTBIT_DISABLE) || \
                                       ((__LASTBIT__) == USART_LASTBIT_ENABLE))

/**
  * @brief Ensure that USART request parameter is valid.
  * @param __PARAM__ USART request parameter.
  * @retval SET (__PARAM__ is valid) or RESET (__PARAM__ is invalid)
  */
#define IS_USART_REQUEST_PARAMETER(__PARAM__) (((__PARAM__) == USART_RXDATA_FLUSH_REQUEST) || \
                                               ((__PARAM__) == USART_TXDATA_FLUSH_REQUEST))

/**
  * @}
  */

/* Include USART HAL Extended module */
#include "stm32l0xx_hal_usart_ex.h"

/* Exported functions --------------------------------------------------------*/
/** @addtogroup USART_Exported_Functions USART Exported Functions
  * @{
  */

/** @addtogroup USART_Exported_Functions_Group1 Initialization and de-initialization functions
  * @{
  */

/* Initialization and 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);

/* Callbacks Register/UnRegister functions  ***********************************/
#if (USE_HAL_USART_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_USART_RegisterCallback(USART_HandleTypeDef *husart, HAL_USART_CallbackIDTypeDef CallbackID, pUSART_CallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_USART_UnRegisterCallback(USART_HandleTypeDef *husart, HAL_USART_CallbackIDTypeDef CallbackID);
#endif /* USE_HAL_USART_REGISTER_CALLBACKS */

/**
  * @}
  */

/** @addtogroup USART_Exported_Functions_Group2 IO operation functions
  * @{
  */

/* 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);
/* Transfer Abort functions */
HAL_StatusTypeDef HAL_USART_Abort(USART_HandleTypeDef *husart);
HAL_StatusTypeDef HAL_USART_Abort_IT(USART_HandleTypeDef *husart);

void HAL_USART_IRQHandler(USART_HandleTypeDef *husart);
void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart);
void HAL_USART_TxCpltCallback(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);
void HAL_USART_AbortCpltCallback(USART_HandleTypeDef *husart);

/**
  * @}
  */

/** @addtogroup USART_Exported_Functions_Group4 Peripheral State and Error functions
  * @{
  */

/* Peripheral State and Error functions ***************************************/
HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart);
uint32_t               HAL_USART_GetError(USART_HandleTypeDef *husart);

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* STM32L0xx_HAL_USART_H */

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