/**
  ******************************************************************************
  * @file    stm32l4xx_hal_spi.h
  * @author  MCD Application Team
  * @brief   Header file of SPI HAL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2017 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 STM32L4xx_HAL_SPI_H
#define STM32L4xx_HAL_SPI_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal_def.h"

/** @addtogroup STM32L4xx_HAL_Driver
  * @{
  */

/** @addtogroup SPI
  * @{
  */

/* Exported types ------------------------------------------------------------*/
/** @defgroup SPI_Exported_Types SPI Exported Types
  * @{
  */

/**
  * @brief  SPI Configuration Structure definition
  */
typedef struct
{
  uint32_t Mode;                /*!< Specifies the SPI operating mode.
                                     This parameter can be a value of @ref SPI_Mode */

  uint32_t Direction;           /*!< Specifies the SPI bidirectional mode state.
                                     This parameter can be a value of @ref SPI_Direction */

  uint32_t DataSize;            /*!< Specifies the SPI data size.
                                     This parameter can be a value of @ref SPI_Data_Size */

  uint32_t CLKPolarity;         /*!< Specifies the serial clock steady state.
                                     This parameter can be a value of @ref SPI_Clock_Polarity */

  uint32_t CLKPhase;            /*!< Specifies the clock active edge for the bit capture.
                                     This parameter can be a value of @ref SPI_Clock_Phase */

  uint32_t NSS;                 /*!< Specifies whether the NSS signal is managed by
                                     hardware (NSS pin) or by software using the SSI bit.
                                     This parameter can be a value of @ref SPI_Slave_Select_management */

  uint32_t BaudRatePrescaler;   /*!< Specifies the Baud Rate prescaler value which will be
                                     used to configure the transmit and receive SCK clock.
                                     This parameter can be a value of @ref SPI_BaudRate_Prescaler
                                     @note The communication clock is derived from the master
                                     clock. The slave clock does not need to be set. */

  uint32_t FirstBit;            /*!< Specifies whether data transfers start from MSB or LSB bit.
                                     This parameter can be a value of @ref SPI_MSB_LSB_transmission */

  uint32_t TIMode;              /*!< Specifies if the TI mode is enabled or not.
                                     This parameter can be a value of @ref SPI_TI_mode */

  uint32_t CRCCalculation;      /*!< Specifies if the CRC calculation is enabled or not.
                                     This parameter can be a value of @ref SPI_CRC_Calculation */

  uint32_t CRCPolynomial;       /*!< Specifies the polynomial used for the CRC calculation.
                                     This parameter must be an odd number between Min_Data = 1 and Max_Data = 65535 */

  uint32_t CRCLength;           /*!< Specifies the CRC Length used for the CRC calculation.
                                     CRC Length is only used with Data8 and Data16, not other data size
                                     This parameter can be a value of @ref SPI_CRC_length */

  uint32_t NSSPMode;            /*!< Specifies whether the NSSP signal is enabled or not .
                                     This parameter can be a value of @ref SPI_NSSP_Mode
                                     This mode is activated by the NSSP bit in the SPIx_CR2 register and
                                     it takes effect only if the SPI interface is configured as Motorola SPI
                                     master (FRF=0) with capture on the first edge (SPIx_CR1 CPHA = 0,
                                     CPOL setting is ignored).. */
} SPI_InitTypeDef;

/**
  * @brief  HAL SPI State structure definition
  */
typedef enum
{
  HAL_SPI_STATE_RESET      = 0x00U,    /*!< Peripheral not Initialized                         */
  HAL_SPI_STATE_READY      = 0x01U,    /*!< Peripheral Initialized and ready for use           */
  HAL_SPI_STATE_BUSY       = 0x02U,    /*!< an internal process is ongoing                     */
  HAL_SPI_STATE_BUSY_TX    = 0x03U,    /*!< Data Transmission process is ongoing               */
  HAL_SPI_STATE_BUSY_RX    = 0x04U,    /*!< Data Reception process is ongoing                  */
  HAL_SPI_STATE_BUSY_TX_RX = 0x05U,    /*!< Data Transmission and Reception process is ongoing */
  HAL_SPI_STATE_ERROR      = 0x06U,    /*!< SPI error state                                    */
  HAL_SPI_STATE_ABORT      = 0x07U     /*!< SPI abort is ongoing                               */
} HAL_SPI_StateTypeDef;

/**
  * @brief  SPI handle Structure definition
  */
typedef struct __SPI_HandleTypeDef
{
  SPI_TypeDef                *Instance;      /*!< SPI registers base address               */

  SPI_InitTypeDef            Init;           /*!< SPI communication parameters             */

  uint8_t                    *pTxBuffPtr;    /*!< Pointer to SPI Tx transfer Buffer        */

  uint16_t                   TxXferSize;     /*!< SPI Tx Transfer size                     */

  __IO uint16_t              TxXferCount;    /*!< SPI Tx Transfer Counter                  */

  uint8_t                    *pRxBuffPtr;    /*!< Pointer to SPI Rx transfer Buffer        */

  uint16_t                   RxXferSize;     /*!< SPI Rx Transfer size                     */

  __IO uint16_t              RxXferCount;    /*!< SPI Rx Transfer Counter                  */

  uint32_t                   CRCSize;        /*!< SPI CRC size used for the transfer       */

  void (*RxISR)(struct __SPI_HandleTypeDef *hspi);   /*!< function pointer on Rx ISR       */

  void (*TxISR)(struct __SPI_HandleTypeDef *hspi);   /*!< function pointer on Tx ISR       */

  DMA_HandleTypeDef          *hdmatx;        /*!< SPI Tx DMA Handle parameters             */

  DMA_HandleTypeDef          *hdmarx;        /*!< SPI Rx DMA Handle parameters             */

  HAL_LockTypeDef            Lock;           /*!< Locking object                           */

  __IO HAL_SPI_StateTypeDef  State;          /*!< SPI communication state                  */

  __IO uint32_t              ErrorCode;      /*!< SPI Error code                           */

#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
  void (* TxCpltCallback)(struct __SPI_HandleTypeDef *hspi);             /*!< SPI Tx Completed callback          */
  void (* RxCpltCallback)(struct __SPI_HandleTypeDef *hspi);             /*!< SPI Rx Completed callback          */
  void (* TxRxCpltCallback)(struct __SPI_HandleTypeDef *hspi);           /*!< SPI TxRx Completed callback        */
  void (* TxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi);         /*!< SPI Tx Half Completed callback     */
  void (* RxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi);         /*!< SPI Rx Half Completed callback     */
  void (* TxRxHalfCpltCallback)(struct __SPI_HandleTypeDef *hspi);       /*!< SPI TxRx Half Completed callback   */
  void (* ErrorCallback)(struct __SPI_HandleTypeDef *hspi);              /*!< SPI Error callback                 */
  void (* AbortCpltCallback)(struct __SPI_HandleTypeDef *hspi);          /*!< SPI Abort callback                 */
  void (* MspInitCallback)(struct __SPI_HandleTypeDef *hspi);            /*!< SPI Msp Init callback              */
  void (* MspDeInitCallback)(struct __SPI_HandleTypeDef *hspi);          /*!< SPI Msp DeInit callback            */

#endif  /* USE_HAL_SPI_REGISTER_CALLBACKS */
} SPI_HandleTypeDef;

#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
/**
  * @brief  HAL SPI Callback ID enumeration definition
  */
typedef enum
{
  HAL_SPI_TX_COMPLETE_CB_ID             = 0x00U,    /*!< SPI Tx Completed callback ID         */
  HAL_SPI_RX_COMPLETE_CB_ID             = 0x01U,    /*!< SPI Rx Completed callback ID         */
  HAL_SPI_TX_RX_COMPLETE_CB_ID          = 0x02U,    /*!< SPI TxRx Completed callback ID       */
  HAL_SPI_TX_HALF_COMPLETE_CB_ID        = 0x03U,    /*!< SPI Tx Half Completed callback ID    */
  HAL_SPI_RX_HALF_COMPLETE_CB_ID        = 0x04U,    /*!< SPI Rx Half Completed callback ID    */
  HAL_SPI_TX_RX_HALF_COMPLETE_CB_ID     = 0x05U,    /*!< SPI TxRx Half Completed callback ID  */
  HAL_SPI_ERROR_CB_ID                   = 0x06U,    /*!< SPI Error callback ID                */
  HAL_SPI_ABORT_CB_ID                   = 0x07U,    /*!< SPI Abort callback ID                */
  HAL_SPI_MSPINIT_CB_ID                 = 0x08U,    /*!< SPI Msp Init callback ID             */
  HAL_SPI_MSPDEINIT_CB_ID               = 0x09U     /*!< SPI Msp DeInit callback ID           */

} HAL_SPI_CallbackIDTypeDef;

/**
  * @brief  HAL SPI Callback pointer definition
  */
typedef  void (*pSPI_CallbackTypeDef)(SPI_HandleTypeDef *hspi); /*!< pointer to an SPI callback function */

#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
/**
  * @}
  */

/* Exported constants --------------------------------------------------------*/
/** @defgroup SPI_Exported_Constants SPI Exported Constants
  * @{
  */

/** @defgroup SPI_Error_Code SPI Error Code
  * @{
  */
#define HAL_SPI_ERROR_NONE              (0x00000000U)   /*!< No error                               */
#define HAL_SPI_ERROR_MODF              (0x00000001U)   /*!< MODF error                             */
#define HAL_SPI_ERROR_CRC               (0x00000002U)   /*!< CRC error                              */
#define HAL_SPI_ERROR_OVR               (0x00000004U)   /*!< OVR error                              */
#define HAL_SPI_ERROR_FRE               (0x00000008U)   /*!< FRE error                              */
#define HAL_SPI_ERROR_DMA               (0x00000010U)   /*!< DMA transfer error                     */
#define HAL_SPI_ERROR_FLAG              (0x00000020U)   /*!< Error on RXNE/TXE/BSY/FTLVL/FRLVL Flag */
#define HAL_SPI_ERROR_ABORT             (0x00000040U)   /*!< Error during SPI Abort procedure       */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
#define HAL_SPI_ERROR_INVALID_CALLBACK  (0x00000080U)   /*!< Invalid Callback error                 */
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
/**
  * @}
  */

/** @defgroup SPI_Mode SPI Mode
  * @{
  */
#define SPI_MODE_SLAVE                  (0x00000000U)
#define SPI_MODE_MASTER                 (SPI_CR1_MSTR | SPI_CR1_SSI)
/**
  * @}
  */

/** @defgroup SPI_Direction SPI Direction Mode
  * @{
  */
#define SPI_DIRECTION_2LINES            (0x00000000U)
#define SPI_DIRECTION_2LINES_RXONLY     SPI_CR1_RXONLY
#define SPI_DIRECTION_1LINE             SPI_CR1_BIDIMODE
/**
  * @}
  */

/** @defgroup SPI_Data_Size SPI Data Size
  * @{
  */
#define SPI_DATASIZE_4BIT               (0x00000300U)
#define SPI_DATASIZE_5BIT               (0x00000400U)
#define SPI_DATASIZE_6BIT               (0x00000500U)
#define SPI_DATASIZE_7BIT               (0x00000600U)
#define SPI_DATASIZE_8BIT               (0x00000700U)
#define SPI_DATASIZE_9BIT               (0x00000800U)
#define SPI_DATASIZE_10BIT              (0x00000900U)
#define SPI_DATASIZE_11BIT              (0x00000A00U)
#define SPI_DATASIZE_12BIT              (0x00000B00U)
#define SPI_DATASIZE_13BIT              (0x00000C00U)
#define SPI_DATASIZE_14BIT              (0x00000D00U)
#define SPI_DATASIZE_15BIT              (0x00000E00U)
#define SPI_DATASIZE_16BIT              (0x00000F00U)
/**
  * @}
  */

/** @defgroup SPI_Clock_Polarity SPI Clock Polarity
  * @{
  */
#define SPI_POLARITY_LOW                (0x00000000U)
#define SPI_POLARITY_HIGH               SPI_CR1_CPOL
/**
  * @}
  */

/** @defgroup SPI_Clock_Phase SPI Clock Phase
  * @{
  */
#define SPI_PHASE_1EDGE                 (0x00000000U)
#define SPI_PHASE_2EDGE                 SPI_CR1_CPHA
/**
  * @}
  */

/** @defgroup SPI_Slave_Select_management SPI Slave Select Management
  * @{
  */
#define SPI_NSS_SOFT                    SPI_CR1_SSM
#define SPI_NSS_HARD_INPUT              (0x00000000U)
#define SPI_NSS_HARD_OUTPUT             (SPI_CR2_SSOE << 16U)
/**
  * @}
  */

/** @defgroup SPI_NSSP_Mode SPI NSS Pulse Mode
  * @{
  */
#define SPI_NSS_PULSE_ENABLE            SPI_CR2_NSSP
#define SPI_NSS_PULSE_DISABLE           (0x00000000U)
/**
  * @}
  */

/** @defgroup SPI_BaudRate_Prescaler SPI BaudRate Prescaler
  * @{
  */
#define SPI_BAUDRATEPRESCALER_2         (0x00000000U)
#define SPI_BAUDRATEPRESCALER_4         (SPI_CR1_BR_0)
#define SPI_BAUDRATEPRESCALER_8         (SPI_CR1_BR_1)
#define SPI_BAUDRATEPRESCALER_16        (SPI_CR1_BR_1 | SPI_CR1_BR_0)
#define SPI_BAUDRATEPRESCALER_32        (SPI_CR1_BR_2)
#define SPI_BAUDRATEPRESCALER_64        (SPI_CR1_BR_2 | SPI_CR1_BR_0)
#define SPI_BAUDRATEPRESCALER_128       (SPI_CR1_BR_2 | SPI_CR1_BR_1)
#define SPI_BAUDRATEPRESCALER_256       (SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0)
/**
  * @}
  */

/** @defgroup SPI_MSB_LSB_transmission SPI MSB LSB Transmission
  * @{
  */
#define SPI_FIRSTBIT_MSB                (0x00000000U)
#define SPI_FIRSTBIT_LSB                SPI_CR1_LSBFIRST
/**
  * @}
  */

/** @defgroup SPI_TI_mode SPI TI Mode
  * @{
  */
#define SPI_TIMODE_DISABLE              (0x00000000U)
#define SPI_TIMODE_ENABLE               SPI_CR2_FRF
/**
  * @}
  */

/** @defgroup SPI_CRC_Calculation SPI CRC Calculation
  * @{
  */
#define SPI_CRCCALCULATION_DISABLE      (0x00000000U)
#define SPI_CRCCALCULATION_ENABLE       SPI_CR1_CRCEN
/**
  * @}
  */

/** @defgroup SPI_CRC_length SPI CRC Length
  * @{
  * This parameter can be one of the following values:
  *     SPI_CRC_LENGTH_DATASIZE: aligned with the data size
  *     SPI_CRC_LENGTH_8BIT    : CRC 8bit
  *     SPI_CRC_LENGTH_16BIT   : CRC 16bit
  */
#define SPI_CRC_LENGTH_DATASIZE         (0x00000000U)
#define SPI_CRC_LENGTH_8BIT             (0x00000001U)
#define SPI_CRC_LENGTH_16BIT            (0x00000002U)
/**
  * @}
  */

/** @defgroup SPI_FIFO_reception_threshold SPI FIFO Reception Threshold
  * @{
  * This parameter can be one of the following values:
  *     SPI_RXFIFO_THRESHOLD or SPI_RXFIFO_THRESHOLD_QF :
  *          RXNE event is generated if the FIFO
  *          level is greater or equal to 1/4(8-bits).
  *     SPI_RXFIFO_THRESHOLD_HF: RXNE event is generated if the FIFO
  *          level is greater or equal to 1/2(16 bits). */
#define SPI_RXFIFO_THRESHOLD            SPI_CR2_FRXTH
#define SPI_RXFIFO_THRESHOLD_QF         SPI_CR2_FRXTH
#define SPI_RXFIFO_THRESHOLD_HF         (0x00000000U)
/**
  * @}
  */

/** @defgroup SPI_Interrupt_definition SPI Interrupt Definition
  * @{
  */
#define SPI_IT_TXE                      SPI_CR2_TXEIE
#define SPI_IT_RXNE                     SPI_CR2_RXNEIE
#define SPI_IT_ERR                      SPI_CR2_ERRIE
/**
  * @}
  */

/** @defgroup SPI_Flags_definition SPI Flags Definition
  * @{
  */
#define SPI_FLAG_RXNE                   SPI_SR_RXNE   /* SPI status flag: Rx buffer not empty flag       */
#define SPI_FLAG_TXE                    SPI_SR_TXE    /* SPI status flag: Tx buffer empty flag           */
#define SPI_FLAG_BSY                    SPI_SR_BSY    /* SPI status flag: Busy flag                      */
#define SPI_FLAG_CRCERR                 SPI_SR_CRCERR /* SPI Error flag: CRC error flag                  */
#define SPI_FLAG_MODF                   SPI_SR_MODF   /* SPI Error flag: Mode fault flag                 */
#define SPI_FLAG_OVR                    SPI_SR_OVR    /* SPI Error flag: Overrun flag                    */
#define SPI_FLAG_FRE                    SPI_SR_FRE    /* SPI Error flag: TI mode frame format error flag */
#define SPI_FLAG_FTLVL                  SPI_SR_FTLVL  /* SPI fifo transmission level                     */
#define SPI_FLAG_FRLVL                  SPI_SR_FRLVL  /* SPI fifo reception level                        */
#define SPI_FLAG_MASK                   (SPI_SR_RXNE | SPI_SR_TXE | SPI_SR_BSY | SPI_SR_CRCERR | SPI_SR_MODF | SPI_SR_OVR | SPI_SR_FRE | SPI_SR_FTLVL | SPI_SR_FRLVL)
/**
  * @}
  */

/** @defgroup SPI_transmission_fifo_status_level SPI Transmission FIFO Status Level
  * @{
  */
#define SPI_FTLVL_EMPTY                 (0x00000000U)
#define SPI_FTLVL_QUARTER_FULL          (0x00000800U)
#define SPI_FTLVL_HALF_FULL             (0x00001000U)
#define SPI_FTLVL_FULL                  (0x00001800U)

/**
  * @}
  */

/** @defgroup SPI_reception_fifo_status_level SPI Reception FIFO Status Level
  * @{
  */
#define SPI_FRLVL_EMPTY                 (0x00000000U)
#define SPI_FRLVL_QUARTER_FULL          (0x00000200U)
#define SPI_FRLVL_HALF_FULL             (0x00000400U)
#define SPI_FRLVL_FULL                  (0x00000600U)
/**
  * @}
  */

/**
  * @}
  */

/* Exported macros -----------------------------------------------------------*/
/** @defgroup SPI_Exported_Macros SPI Exported Macros
  * @{
  */

/** @brief  Reset SPI handle state.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
#define __HAL_SPI_RESET_HANDLE_STATE(__HANDLE__)                do{                                                  \
                                                                    (__HANDLE__)->State = HAL_SPI_STATE_RESET;       \
                                                                    (__HANDLE__)->MspInitCallback = NULL;            \
                                                                    (__HANDLE__)->MspDeInitCallback = NULL;          \
                                                                  } while(0)
#else
#define __HAL_SPI_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_SPI_STATE_RESET)
#endif

/** @brief  Enable the specified SPI interrupts.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @param  __INTERRUPT__ specifies the interrupt source to enable.
  *         This parameter can be one of the following values:
  *            @arg SPI_IT_TXE: Tx buffer empty interrupt enable
  *            @arg SPI_IT_RXNE: RX buffer not empty interrupt enable
  *            @arg SPI_IT_ERR: Error interrupt enable
  * @retval None
  */
#define __HAL_SPI_ENABLE_IT(__HANDLE__, __INTERRUPT__)   SET_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__))

/** @brief  Disable the specified SPI interrupts.
  * @param  __HANDLE__ specifies the SPI handle.
  *         This parameter can be SPIx where x: 1, 2, or 3 to select the SPI peripheral.
  * @param  __INTERRUPT__ specifies the interrupt source to disable.
  *         This parameter can be one of the following values:
  *            @arg SPI_IT_TXE: Tx buffer empty interrupt enable
  *            @arg SPI_IT_RXNE: RX buffer not empty interrupt enable
  *            @arg SPI_IT_ERR: Error interrupt enable
  * @retval None
  */
#define __HAL_SPI_DISABLE_IT(__HANDLE__, __INTERRUPT__)  CLEAR_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__))

/** @brief  Check whether the specified SPI interrupt source is enabled or not.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @param  __INTERRUPT__ specifies the SPI interrupt source to check.
  *          This parameter can be one of the following values:
  *            @arg SPI_IT_TXE: Tx buffer empty interrupt enable
  *            @arg SPI_IT_RXNE: RX buffer not empty interrupt enable
  *            @arg SPI_IT_ERR: Error interrupt enable
  * @retval The new state of __IT__ (TRUE or FALSE).
  */
#define __HAL_SPI_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)

/** @brief  Check whether the specified SPI flag is set or not.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @param  __FLAG__ specifies the flag to check.
  *         This parameter can be one of the following values:
  *            @arg SPI_FLAG_RXNE: Receive buffer not empty flag
  *            @arg SPI_FLAG_TXE: Transmit buffer empty flag
  *            @arg SPI_FLAG_CRCERR: CRC error flag
  *            @arg SPI_FLAG_MODF: Mode fault flag
  *            @arg SPI_FLAG_OVR: Overrun flag
  *            @arg SPI_FLAG_BSY: Busy flag
  *            @arg SPI_FLAG_FRE: Frame format error flag
  *            @arg SPI_FLAG_FTLVL: SPI fifo transmission level
  *            @arg SPI_FLAG_FRLVL: SPI fifo reception level
  * @retval The new state of __FLAG__ (TRUE or FALSE).
  */
#define __HAL_SPI_GET_FLAG(__HANDLE__, __FLAG__) ((((__HANDLE__)->Instance->SR) & (__FLAG__)) == (__FLAG__))

/** @brief  Clear the SPI CRCERR pending flag.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define __HAL_SPI_CLEAR_CRCERRFLAG(__HANDLE__) ((__HANDLE__)->Instance->SR = (uint16_t)(~SPI_FLAG_CRCERR))

/** @brief  Clear the SPI MODF pending flag.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define __HAL_SPI_CLEAR_MODFFLAG(__HANDLE__)             \
  do{                                                    \
    __IO uint32_t tmpreg_modf = 0x00U;                   \
    tmpreg_modf = (__HANDLE__)->Instance->SR;            \
    CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE); \
    UNUSED(tmpreg_modf);                                 \
  } while(0U)

/** @brief  Clear the SPI OVR pending flag.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define __HAL_SPI_CLEAR_OVRFLAG(__HANDLE__)        \
  do{                                              \
    __IO uint32_t tmpreg_ovr = 0x00U;              \
    tmpreg_ovr = (__HANDLE__)->Instance->DR;       \
    tmpreg_ovr = (__HANDLE__)->Instance->SR;       \
    UNUSED(tmpreg_ovr);                            \
  } while(0U)

/** @brief  Clear the SPI FRE pending flag.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define __HAL_SPI_CLEAR_FREFLAG(__HANDLE__)        \
  do{                                              \
  __IO uint32_t tmpreg_fre = 0x00U;                \
  tmpreg_fre = (__HANDLE__)->Instance->SR;         \
  UNUSED(tmpreg_fre);                              \
  }while(0U)

/** @brief  Enable the SPI peripheral.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define __HAL_SPI_ENABLE(__HANDLE__)  SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE)

/** @brief  Disable the SPI peripheral.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define __HAL_SPI_DISABLE(__HANDLE__) CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE)

/**
  * @}
  */

/* Private macros ------------------------------------------------------------*/
/** @defgroup SPI_Private_Macros SPI Private Macros
  * @{
  */

/** @brief  Set the SPI transmit-only mode.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define SPI_1LINE_TX(__HANDLE__)  SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIOE)

/** @brief  Set the SPI receive-only mode.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define SPI_1LINE_RX(__HANDLE__)  CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIOE)

/** @brief  Reset the CRC calculation of the SPI.
  * @param  __HANDLE__ specifies the SPI Handle.
  *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  * @retval None
  */
#define SPI_RESET_CRC(__HANDLE__) do{CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_CRCEN);\
                                       SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_CRCEN);}while(0U)

/** @brief  Check whether the specified SPI flag is set or not.
  * @param  __SR__  copy of SPI SR regsiter.
  * @param  __FLAG__ specifies the flag to check.
  *         This parameter can be one of the following values:
  *            @arg SPI_FLAG_RXNE: Receive buffer not empty flag
  *            @arg SPI_FLAG_TXE: Transmit buffer empty flag
  *            @arg SPI_FLAG_CRCERR: CRC error flag
  *            @arg SPI_FLAG_MODF: Mode fault flag
  *            @arg SPI_FLAG_OVR: Overrun flag
  *            @arg SPI_FLAG_BSY: Busy flag
  *            @arg SPI_FLAG_FRE: Frame format error flag
  *            @arg SPI_FLAG_FTLVL: SPI fifo transmission level
  *            @arg SPI_FLAG_FRLVL: SPI fifo reception level
  * @retval SET or RESET.
  */
#define SPI_CHECK_FLAG(__SR__, __FLAG__)         ((((__SR__) & ((__FLAG__) & SPI_FLAG_MASK)) == ((__FLAG__) & SPI_FLAG_MASK)) ? SET : RESET)

/** @brief  Check whether the specified SPI Interrupt is set or not.
  * @param  __CR2__  copy of SPI CR2 regsiter.
  * @param  __INTERRUPT__ specifies the SPI interrupt source to check.
  *         This parameter can be one of the following values:
  *            @arg SPI_IT_TXE: Tx buffer empty interrupt enable
  *            @arg SPI_IT_RXNE: RX buffer not empty interrupt enable
  *            @arg SPI_IT_ERR: Error interrupt enable
  * @retval SET or RESET.
  */
#define SPI_CHECK_IT_SOURCE(__CR2__, __INTERRUPT__)      ((((__CR2__) & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)

/** @brief  Checks if SPI Mode parameter is in allowed range.
  * @param  __MODE__ specifies the SPI Mode.
  *         This parameter can be a value of @ref SPI_Mode
  * @retval None
  */
#define IS_SPI_MODE(__MODE__) (((__MODE__) == SPI_MODE_SLAVE) || \
                               ((__MODE__) == SPI_MODE_MASTER))

/** @brief  Checks if SPI Direction Mode parameter is in allowed range.
  * @param  __MODE__ specifies the SPI Direction Mode.
  *         This parameter can be a value of @ref SPI_Direction
  * @retval None
  */
#define IS_SPI_DIRECTION(__MODE__) (((__MODE__) == SPI_DIRECTION_2LINES)        || \
                                    ((__MODE__) == SPI_DIRECTION_2LINES_RXONLY) || \
                                    ((__MODE__) == SPI_DIRECTION_1LINE))

/** @brief  Checks if SPI Direction Mode parameter is 2 lines.
  * @param  __MODE__ specifies the SPI Direction Mode.
  * @retval None
  */
#define IS_SPI_DIRECTION_2LINES(__MODE__) ((__MODE__) == SPI_DIRECTION_2LINES)

/** @brief  Checks if SPI Direction Mode parameter is 1 or 2 lines.
  * @param  __MODE__ specifies the SPI Direction Mode.
  * @retval None
  */
#define IS_SPI_DIRECTION_2LINES_OR_1LINE(__MODE__) (((__MODE__) == SPI_DIRECTION_2LINES) || \
                                                    ((__MODE__) == SPI_DIRECTION_1LINE))

/** @brief  Checks if SPI Data Size parameter is in allowed range.
  * @param  __DATASIZE__ specifies the SPI Data Size.
  *         This parameter can be a value of @ref SPI_Data_Size
  * @retval None
  */
#define IS_SPI_DATASIZE(__DATASIZE__) (((__DATASIZE__) == SPI_DATASIZE_16BIT) || \
                                       ((__DATASIZE__) == SPI_DATASIZE_15BIT) || \
                                       ((__DATASIZE__) == SPI_DATASIZE_14BIT) || \
                                       ((__DATASIZE__) == SPI_DATASIZE_13BIT) || \
                                       ((__DATASIZE__) == SPI_DATASIZE_12BIT) || \
                                       ((__DATASIZE__) == SPI_DATASIZE_11BIT) || \
                                       ((__DATASIZE__) == SPI_DATASIZE_10BIT) || \
                                       ((__DATASIZE__) == SPI_DATASIZE_9BIT)  || \
                                       ((__DATASIZE__) == SPI_DATASIZE_8BIT)  || \
                                       ((__DATASIZE__) == SPI_DATASIZE_7BIT)  || \
                                       ((__DATASIZE__) == SPI_DATASIZE_6BIT)  || \
                                       ((__DATASIZE__) == SPI_DATASIZE_5BIT)  || \
                                       ((__DATASIZE__) == SPI_DATASIZE_4BIT))

/** @brief  Checks if SPI Serial clock steady state parameter is in allowed range.
  * @param  __CPOL__ specifies the SPI serial clock steady state.
  *         This parameter can be a value of @ref SPI_Clock_Polarity
  * @retval None
  */
#define IS_SPI_CPOL(__CPOL__) (((__CPOL__) == SPI_POLARITY_LOW) || \
                               ((__CPOL__) == SPI_POLARITY_HIGH))

/** @brief  Checks if SPI Clock Phase parameter is in allowed range.
  * @param  __CPHA__ specifies the SPI Clock Phase.
  *         This parameter can be a value of @ref SPI_Clock_Phase
  * @retval None
  */
#define IS_SPI_CPHA(__CPHA__) (((__CPHA__) == SPI_PHASE_1EDGE) || \
                               ((__CPHA__) == SPI_PHASE_2EDGE))

/** @brief  Checks if SPI Slave Select parameter is in allowed range.
  * @param  __NSS__ specifies the SPI Slave Select management parameter.
  *         This parameter can be a value of @ref SPI_Slave_Select_management
  * @retval None
  */
#define IS_SPI_NSS(__NSS__) (((__NSS__) == SPI_NSS_SOFT)       || \
                             ((__NSS__) == SPI_NSS_HARD_INPUT) || \
                             ((__NSS__) == SPI_NSS_HARD_OUTPUT))

/** @brief  Checks if SPI NSS Pulse parameter is in allowed range.
  * @param  __NSSP__ specifies the SPI NSS Pulse Mode parameter.
  *         This parameter can be a value of @ref SPI_NSSP_Mode
  * @retval None
  */
#define IS_SPI_NSSP(__NSSP__) (((__NSSP__) == SPI_NSS_PULSE_ENABLE) || \
                               ((__NSSP__) == SPI_NSS_PULSE_DISABLE))

/** @brief  Checks if SPI Baudrate prescaler parameter is in allowed range.
  * @param  __PRESCALER__ specifies the SPI Baudrate prescaler.
  *         This parameter can be a value of @ref SPI_BaudRate_Prescaler
  * @retval None
  */
#define IS_SPI_BAUDRATE_PRESCALER(__PRESCALER__) (((__PRESCALER__) == SPI_BAUDRATEPRESCALER_2)   || \
                                                  ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_4)   || \
                                                  ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_8)   || \
                                                  ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_16)  || \
                                                  ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_32)  || \
                                                  ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_64)  || \
                                                  ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_128) || \
                                                  ((__PRESCALER__) == SPI_BAUDRATEPRESCALER_256))

/** @brief  Checks if SPI MSB LSB transmission parameter is in allowed range.
  * @param  __BIT__ specifies the SPI MSB LSB transmission (whether data transfer starts from MSB or LSB bit).
  *         This parameter can be a value of @ref SPI_MSB_LSB_transmission
  * @retval None
  */
#define IS_SPI_FIRST_BIT(__BIT__) (((__BIT__) == SPI_FIRSTBIT_MSB) || \
                                   ((__BIT__) == SPI_FIRSTBIT_LSB))

/** @brief  Checks if SPI TI mode parameter is in allowed range.
  * @param  __MODE__ specifies the SPI TI mode.
  *         This parameter can be a value of @ref SPI_TI_mode
  * @retval None
  */
#define IS_SPI_TIMODE(__MODE__) (((__MODE__) == SPI_TIMODE_DISABLE) || \
                                 ((__MODE__) == SPI_TIMODE_ENABLE))

/** @brief  Checks if SPI CRC calculation enabled state is in allowed range.
  * @param  __CALCULATION__ specifies the SPI CRC calculation enable state.
  *         This parameter can be a value of @ref SPI_CRC_Calculation
  * @retval None
  */
#define IS_SPI_CRC_CALCULATION(__CALCULATION__) (((__CALCULATION__) == SPI_CRCCALCULATION_DISABLE) || \
                                                 ((__CALCULATION__) == SPI_CRCCALCULATION_ENABLE))

/** @brief  Checks if SPI CRC length is in allowed range.
  * @param  __LENGTH__ specifies the SPI CRC length.
  *         This parameter can be a value of @ref SPI_CRC_length
  * @retval None
  */
#define IS_SPI_CRC_LENGTH(__LENGTH__) (((__LENGTH__) == SPI_CRC_LENGTH_DATASIZE) ||\
                                       ((__LENGTH__) == SPI_CRC_LENGTH_8BIT)  ||   \
                                       ((__LENGTH__) == SPI_CRC_LENGTH_16BIT))

/** @brief  Checks if SPI polynomial value to be used for the CRC calculation, is in allowed range.
  * @param  __POLYNOMIAL__ specifies the SPI polynomial value to be used for the CRC calculation.
  *         This parameter must be a number between Min_Data = 0 and Max_Data = 65535
  * @retval None
  */
#define IS_SPI_CRC_POLYNOMIAL(__POLYNOMIAL__) (((__POLYNOMIAL__) >= 0x1U) && ((__POLYNOMIAL__) <= 0xFFFFU) && (((__POLYNOMIAL__)&0x1U) != 0U))

/** @brief  Checks if DMA handle is valid.
  * @param  __HANDLE__ specifies a DMA Handle.
  * @retval None
  */
#define IS_SPI_DMA_HANDLE(__HANDLE__) ((__HANDLE__) != NULL)

/**
  * @}
  */

/* Include SPI HAL Extended module */
#include "stm32l4xx_hal_spi_ex.h"

/* Exported functions --------------------------------------------------------*/
/** @addtogroup SPI_Exported_Functions
  * @{
  */

/** @addtogroup SPI_Exported_Functions_Group1
  * @{
  */
/* Initialization/de-initialization functions  ********************************/
HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_DeInit(SPI_HandleTypeDef *hspi);
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi);
void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi);

/* Callbacks Register/UnRegister functions  ***********************************/
#if (USE_HAL_SPI_REGISTER_CALLBACKS == 1U)
HAL_StatusTypeDef HAL_SPI_RegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID, pSPI_CallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_SPI_UnRegisterCallback(SPI_HandleTypeDef *hspi, HAL_SPI_CallbackIDTypeDef CallbackID);
#endif /* USE_HAL_SPI_REGISTER_CALLBACKS */
/**
  * @}
  */

/** @addtogroup SPI_Exported_Functions_Group2
  * @{
  */
/* I/O operation functions  ***************************************************/
HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);
HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size,
                                          uint32_t Timeout);
HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData,
                                             uint16_t Size);
HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData,
                                              uint16_t Size);
HAL_StatusTypeDef HAL_SPI_DMAPause(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_DMAResume(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi);
/* Transfer Abort functions */
HAL_StatusTypeDef HAL_SPI_Abort(SPI_HandleTypeDef *hspi);
HAL_StatusTypeDef HAL_SPI_Abort_IT(SPI_HandleTypeDef *hspi);

void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi);
void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi);
void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi);
void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi);
void HAL_SPI_TxHalfCpltCallback(SPI_HandleTypeDef *hspi);
void HAL_SPI_RxHalfCpltCallback(SPI_HandleTypeDef *hspi);
void HAL_SPI_TxRxHalfCpltCallback(SPI_HandleTypeDef *hspi);
void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi);
void HAL_SPI_AbortCpltCallback(SPI_HandleTypeDef *hspi);
/**
  * @}
  */

/** @addtogroup SPI_Exported_Functions_Group3
  * @{
  */
/* Peripheral State and Error functions ***************************************/
HAL_SPI_StateTypeDef HAL_SPI_GetState(SPI_HandleTypeDef *hspi);
uint32_t             HAL_SPI_GetError(SPI_HandleTypeDef *hspi);
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* STM32L4xx_HAL_SPI_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/