text: /**
    ******************************************************************************
    * @file    stm32l4xx_hal_pcd.h
    * @author  MCD Application Team
    * @brief   Header file of PCD HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2017 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 __STM32L4xx_HAL_PCD_H
  #define __STM32L4xx_HAL_PCD_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  #if defined(STM32L432xx) || defined(STM32L433xx) || defined(STM32L442xx) || defined(STM32L443xx) || \
      defined(STM32L452xx) || defined(STM32L462xx) || \
      defined(STM32L475xx) || defined(STM32L476xx) || defined(STM32L485xx) || defined(STM32L486xx) || \
      defined(STM32L496xx) || defined(STM32L4A6xx) || \
      defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx)
  
  /* Includes ------------------------------------------------------------------*/
  #include "../../../drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_usb.h"
     
  /** @addtogroup STM32L4xx_HAL_Driver
    * @{
    */
  
  /** @addtogroup PCD
    * @{
    */ 
  
  /* Exported types ------------------------------------------------------------*/ 
  /** @defgroup PCD_Exported_Types PCD Exported Types
    * @{
    */
  
     /** 
    * @brief  PCD State structure definition  
    */  
  typedef enum 
  {
    HAL_PCD_STATE_RESET   = 0x00,
    HAL_PCD_STATE_READY   = 0x01,
    HAL_PCD_STATE_ERROR   = 0x02,
    HAL_PCD_STATE_BUSY    = 0x03,
    HAL_PCD_STATE_TIMEOUT = 0x04
  } PCD_StateTypeDef;
  
  /* Device LPM suspend state */
  typedef enum  
  {
    LPM_L0 = 0x00, /* on */
    LPM_L1 = 0x01, /* LPM L1 sleep */
    LPM_L2 = 0x02, /* suspend */
    LPM_L3 = 0x03, /* off */
  }PCD_LPM_StateTypeDef;
  
  #if defined (USB)
  /**
    * @brief  PCD double buffered endpoint direction
    */
  typedef enum
  {
    PCD_EP_DBUF_OUT,
    PCD_EP_DBUF_IN,
    PCD_EP_DBUF_ERR,
  }PCD_EP_DBUF_DIR;
  
  /**
    * @brief  PCD endpoint buffer number
    */
  typedef enum 
  {
    PCD_EP_NOBUF,
    PCD_EP_BUF0,
    PCD_EP_BUF1
  }PCD_EP_BUF_NUM;  
  #endif /* USB */
  
  #if defined (USB_OTG_FS)
  typedef USB_OTG_GlobalTypeDef  PCD_TypeDef;
  typedef USB_OTG_CfgTypeDef     PCD_InitTypeDef;
  typedef USB_OTG_EPTypeDef      PCD_EPTypeDef;
  #endif /* USB_OTG_FS */
  
  #if defined (USB)
  typedef USB_TypeDef        PCD_TypeDef;
  typedef USB_CfgTypeDef     PCD_InitTypeDef;
  typedef USB_EPTypeDef      PCD_EPTypeDef;
  #endif /* USB */                         
  
  /** 
    * @brief  PCD Handle Structure definition  
    */ 
  typedef struct
  {
    PCD_TypeDef             *Instance;   /*!< Register base address              */ 
    PCD_InitTypeDef         Init;        /*!< PCD required parameters            */
    __IO uint8_t            USB_Address; /*!< USB Address: not used by USB OTG FS */  
    PCD_EPTypeDef           IN_ep[15];    /*!< IN endpoint parameters             */
    PCD_EPTypeDef           OUT_ep[15];   /*!< OUT endpoint parameters            */ 
    HAL_LockTypeDef         Lock;        /*!< PCD peripheral status              */
    __IO PCD_StateTypeDef   State;       /*!< PCD communication state            */
    uint32_t                Setup[12];   /*!< Setup packet buffer                */
    PCD_LPM_StateTypeDef    LPM_State;    /*!< LPM State                          */
    uint32_t                BESL;
    
    
    uint32_t lpm_active;                  /*!< Enable or disable the Link Power Management .                                  
                                          This parameter can be set to ENABLE or DISABLE                      */
  
    uint32_t battery_charging_active;     /*!< Enable or disable Battery charging.                                  
                                          This parameter can be set to ENABLE or DISABLE                      */
    void                    *pData;      /*!< Pointer to upper stack Handler     */    
    
  } PCD_HandleTypeDef;
  
  /**
    * @}
    */
    
  /* Include PCD HAL Extended module */
  #include "../../../drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_pcd_ex.h"
  
  /* Exported constants --------------------------------------------------------*/
  /** @defgroup PCD_Exported_Constants PCD Exported Constants
    * @{
    */
  
  /** @defgroup PCD_Speed PCD Speed
    * @{
    */
  #define PCD_SPEED_FULL               1
  /**
    * @}
    */
    
  /** @defgroup PCD_PHY_Module PCD PHY Module
    * @{
    */
  #define PCD_PHY_EMBEDDED             1
  /**
    * @}
    */
  
  /** @defgroup PCD_Turnaround_Timeout Turnaround Timeout Value
    * @{
    */
  #ifndef USBD_FS_TRDT_VALUE
   #define USBD_FS_TRDT_VALUE           5
  #endif /* USBD_FS_TRDT_VALUE */
  /**
    * @}
    */
  
  /**
    * @}
    */ 
    
  /* Exported macros -----------------------------------------------------------*/
  /** @defgroup PCD_Exported_Macros PCD Exported Macros
   *  @brief macros to handle interrupts and specific clock configurations
   * @{
   */
  #if defined (USB_OTG_FS)
  #define __HAL_PCD_ENABLE(__HANDLE__)                       USB_EnableGlobalInt ((__HANDLE__)->Instance)
  #define __HAL_PCD_DISABLE(__HANDLE__)                      USB_DisableGlobalInt ((__HANDLE__)->Instance)
     
  #define __HAL_PCD_GET_FLAG(__HANDLE__, __INTERRUPT__)      ((USB_ReadInterrupts((__HANDLE__)->Instance) & (__INTERRUPT__)) == (__INTERRUPT__))
  #define __HAL_PCD_CLEAR_FLAG(__HANDLE__, __INTERRUPT__)    (((__HANDLE__)->Instance->GINTSTS) &=  (__INTERRUPT__))
  #define __HAL_PCD_IS_INVALID_INTERRUPT(__HANDLE__)         (USB_ReadInterrupts((__HANDLE__)->Instance) == 0)
  
  
  #define __HAL_PCD_UNGATE_PHYCLOCK(__HANDLE__)             *(__IO uint32_t *)((uint32_t)((__HANDLE__)->Instance) + USB_OTG_PCGCCTL_BASE) &= \
                                                            ~(USB_OTG_PCGCCTL_STOPCLK)
  
  #define __HAL_PCD_GATE_PHYCLOCK(__HANDLE__)               *(__IO uint32_t *)((uint32_t)((__HANDLE__)->Instance) + USB_OTG_PCGCCTL_BASE) |= USB_OTG_PCGCCTL_STOPCLK
                                                        
  #define __HAL_PCD_IS_PHY_SUSPENDED(__HANDLE__)            ((*(__IO uint32_t *)((uint32_t)((__HANDLE__)->Instance) + USB_OTG_PCGCCTL_BASE))&0x10)
                                                                                                               
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_IT()    EXTI->IMR1 |= USB_OTG_FS_WAKEUP_EXTI_LINE
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_DISABLE_IT()   EXTI->IMR1 &= ~(USB_OTG_FS_WAKEUP_EXTI_LINE)
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_GET_FLAG()     EXTI->PR1 & (USB_OTG_FS_WAKEUP_EXTI_LINE)
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG()   EXTI->PR1 = USB_OTG_FS_WAKEUP_EXTI_LINE
  
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_EDGE()  do {\
                                                               EXTI->FTSR1 &= ~(USB_OTG_FS_WAKEUP_EXTI_LINE);\
                                                               EXTI->RTSR1 |= USB_OTG_FS_WAKEUP_EXTI_LINE;\
                                                             } while(0)
  
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_FALLING_EDGE() do {\
                                                               EXTI->FTSR1 |= (USB_OTG_FS_WAKEUP_EXTI_LINE);\
                                                               EXTI->RTSR1 &= ~(USB_OTG_FS_WAKEUP_EXTI_LINE);\
                                                             } while(0)
  
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_FALLING_EDGE() do {\
                                                                     EXTI->RTSR1 &= ~(USB_OTG_FS_WAKEUP_EXTI_LINE);\
                                                                     EXTI->FTSR1 &= ~(USB_OTG_FS_WAKEUP_EXTI_LINE);\
                                                                     EXTI->RTSR1 |= USB_OTG_FS_WAKEUP_EXTI_LINE;\
                                                                     EXTI->FTSR1 |= USB_OTG_FS_WAKEUP_EXTI_LINE;\
                                                                    } while(0)                                                                   
                                                           
  #define __HAL_USB_OTG_FS_WAKEUP_EXTI_GENERATE_SWIT()   (EXTI->SWIER1 |= USB_OTG_FS_WAKEUP_EXTI_LINE)                                                          
  
  #endif /* USB_OTG_FS */
  
  #if defined (USB)
  #define __HAL_PCD_ENABLE(__HANDLE__)                                  USB_EnableGlobalInt ((__HANDLE__)->Instance)
  #define __HAL_PCD_DISABLE(__HANDLE__)                                 USB_DisableGlobalInt ((__HANDLE__)->Instance)
  #define __HAL_PCD_GET_FLAG(__HANDLE__, __INTERRUPT__)                 ((USB_ReadInterrupts((__HANDLE__)->Instance) & (__INTERRUPT__)) == (__INTERRUPT__))
  #define __HAL_PCD_CLEAR_FLAG(__HANDLE__, __INTERRUPT__)               (((__HANDLE__)->Instance->ISTR) &= ~(__INTERRUPT__))
  
  #define __HAL_USB_WAKEUP_EXTI_ENABLE_IT()                             EXTI->IMR1 |= USB_WAKEUP_EXTI_LINE
  #define __HAL_USB_WAKEUP_EXTI_DISABLE_IT()                            EXTI->IMR1 &= ~(USB_WAKEUP_EXTI_LINE)
  #define __HAL_USB_WAKEUP_EXTI_GET_FLAG()                              EXTI->PR1 & (USB_WAKEUP_EXTI_LINE)
  #define __HAL_USB_WAKEUP_EXTI_CLEAR_FLAG()                            EXTI->PR1 = USB_WAKEUP_EXTI_LINE
  
  #define __HAL_USB_WAKEUP_EXTI_ENABLE_RISING_EDGE()                    do {\
                                                                          EXTI->FTSR1 &= ~(USB_WAKEUP_EXTI_LINE);\
                                                                          EXTI->RTSR1 |= USB_WAKEUP_EXTI_LINE;\
                                                                        } while(0)
  
  #define __HAL_USB_WAKEUP_EXTI_ENABLE_FALLING_EDGE()                   do {\
                                                                          EXTI->FTSR1 |= (USB_WAKEUP_EXTI_LINE);\
                                                                          EXTI->RTSR1 &= ~(USB_WAKEUP_EXTI_LINE);\
                                                                        } while(0)
  
  #define __HAL_USB_WAKEUP_EXTI_ENABLE_RISING_FALLING_EDGE()            do {\
                                                                          EXTI->RTSR1 &= ~(USB_WAKEUP_EXTI_LINE);\
                                                                          EXTI->FTSR1 &= ~(USB_WAKEUP_EXTI_LINE);\
                                                                          EXTI->RTSR1 |= USB_WAKEUP_EXTI_LINE;\
                                                                          EXTI->FTSR1 |= USB_WAKEUP_EXTI_LINE;\
                                                                        } while(0)
  
  #define __HAL_USB_WAKEUP_EXTI_GENERATE_SWIT()   (EXTI->SWIER1 |= USB_WAKEUP_EXTI_LINE)
  
  #endif /* USB */
                                                                          
  /**
    * @}
    */
  
  /** @addtogroup PCD_Exported_Functions PCD Exported Functions
    * @{
    */
  
  /* Initialization/de-initialization functions  ********************************/
  /** @addtogroup PCD_Exported_Functions_Group1 Initialization and de-initialization functions
    * @{
    */
  HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd);
  HAL_StatusTypeDef HAL_PCD_DeInit (PCD_HandleTypeDef *hpcd);
  void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd);
  /**
    * @}
    */
  
  /* I/O operation functions  ***************************************************/
  /* Non-Blocking mode: Interrupt */
  /** @addtogroup PCD_Exported_Functions_Group2 Input and Output operation functions
    * @{
    */
   /* Non-Blocking mode: Interrupt */
  HAL_StatusTypeDef HAL_PCD_Start(PCD_HandleTypeDef *hpcd);
  HAL_StatusTypeDef HAL_PCD_Stop(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd);
  
  void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum);
  void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum);
  void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum);
  void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum);
  void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd);
  void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd);
  /**
    * @}
    */
  
  /* Peripheral Control functions  **********************************************/
  /** @addtogroup PCD_Exported_Functions_Group3 Peripheral Control functions
    * @{
    */
  HAL_StatusTypeDef HAL_PCD_DevConnect(PCD_HandleTypeDef *hpcd);
  HAL_StatusTypeDef HAL_PCD_DevDisconnect(PCD_HandleTypeDef *hpcd);
  HAL_StatusTypeDef HAL_PCD_SetAddress(PCD_HandleTypeDef *hpcd, uint8_t address);
  HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint16_t ep_mps, uint8_t ep_type);
  HAL_StatusTypeDef HAL_PCD_EP_Close(PCD_HandleTypeDef *hpcd, uint8_t ep_addr);
  HAL_StatusTypeDef HAL_PCD_EP_Receive(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len);
  HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len);
  uint16_t          HAL_PCD_EP_GetRxCount(PCD_HandleTypeDef *hpcd, uint8_t ep_addr);
  HAL_StatusTypeDef HAL_PCD_EP_SetStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr);
  HAL_StatusTypeDef HAL_PCD_EP_ClrStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr);
  HAL_StatusTypeDef HAL_PCD_EP_Flush(PCD_HandleTypeDef *hpcd, uint8_t ep_addr);
  HAL_StatusTypeDef HAL_PCD_ActivateRemoteWakeup(PCD_HandleTypeDef *hpcd);
  HAL_StatusTypeDef HAL_PCD_DeActivateRemoteWakeup(PCD_HandleTypeDef *hpcd);
  /**
    * @}
    */
  
  /* Peripheral State functions  ************************************************/
  /** @addtogroup PCD_Exported_Functions_Group4 Peripheral State functions
    * @{
    */
  PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd);
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Private constants ---------------------------------------------------------*/
  /** @defgroup PCD_Private_Constants PCD Private Constants
    * @{
    */
  /** @defgroup USB_EXTI_Line_Interrupt USB EXTI line interrupt
    * @{
    */
  #if defined (USB_OTG_FS)
  #define USB_OTG_FS_WAKEUP_EXTI_RISING_EDGE                            ((uint32_t)0x08)
  #define USB_OTG_FS_WAKEUP_EXTI_FALLING_EDGE                           ((uint32_t)0x0C)
  #define USB_OTG_FS_WAKEUP_EXTI_RISING_FALLING_EDGE                    ((uint32_t)0x10)
  
  #define USB_OTG_FS_WAKEUP_EXTI_LINE                                   ((uint32_t)0x00020000)  /*!< External interrupt line 17 Connected to the USB EXTI Line */
  #endif /* USB_OTG_FS */
  
  #if defined (USB)
  #define  USB_WAKEUP_EXTI_LINE                                         ((uint32_t)0x00020000)  /*!< External interrupt line 17Connected to the USB EXTI Line */
  #endif /* USB */
  
  /**
    * @}
    */
  
  #if defined (USB)
  /** @defgroup PCD_EP0_MPS PCD EP0 MPS
    * @{
    */
  #define PCD_EP0MPS_64                                                 DEP0CTL_MPS_64
  #define PCD_EP0MPS_32                                                 DEP0CTL_MPS_32
  #define PCD_EP0MPS_16                                                 DEP0CTL_MPS_16
  #define PCD_EP0MPS_08                                                 DEP0CTL_MPS_8 
  /**
    * @}
    */
    
  /** @defgroup PCD_ENDP PCD ENDP
    * @{
    */
  #define PCD_ENDP0                                                     ((uint8_t)0)
  #define PCD_ENDP1                                                     ((uint8_t)1)
  #define PCD_ENDP2                                                     ((uint8_t)2)
  #define PCD_ENDP3                                                     ((uint8_t)3)
  #define PCD_ENDP4                                                     ((uint8_t)4)
  #define PCD_ENDP5                                                     ((uint8_t)5)
  #define PCD_ENDP6                                                     ((uint8_t)6)
  #define PCD_ENDP7                                                     ((uint8_t)7)
  /**
    * @}
    */
  
  /** @defgroup PCD_ENDP_Kind PCD Endpoint Kind
    * @{
    */
  #define PCD_SNG_BUF                                                   0
  #define PCD_DBL_BUF                                                   1
  /**
    * @}
    */
  #endif /* USB */
  /**
    * @}
    */
  
  /* Private macros ------------------------------------------------------------*/
  /** @addtogroup PCD_Private_Macros PCD Private Macros
   * @{
   */
  #if defined (USB)
  /* SetENDPOINT */
  #define PCD_SET_ENDPOINT(USBx, bEpNum,wRegValue)  (*(&(USBx)->EP0R + (bEpNum) * 2)= (uint16_t)(wRegValue))
  
  /* GetENDPOINT */
  #define PCD_GET_ENDPOINT(USBx, bEpNum)            (*(&(USBx)->EP0R + (bEpNum) * 2))
  
  /* ENDPOINT transfer */
  #define USB_EP0StartXfer                          USB_EPStartXfer
  
  /**
    * @brief  sets the type in the endpoint register(bits EP_TYPE[1:0])
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wType: Endpoint Type.
    * @retval None
    */
  #define PCD_SET_EPTYPE(USBx, bEpNum,wType) (PCD_SET_ENDPOINT((USBx), (bEpNum),\
                                    ((PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EP_T_MASK) | (wType) )))
  
  /**
    * @brief  gets the type in the endpoint register(bits EP_TYPE[1:0])
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval Endpoint Type
    */
  #define PCD_GET_EPTYPE(USBx, bEpNum) (PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EP_T_FIELD)
  
  /**
    * @brief free buffer used from the application realizing it to the line
            toggles bit SW_BUF in the double buffered endpoint register
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  bDir: Direction
    * @retval None
    */
  #define PCD_FreeUserBuffer(USBx, bEpNum, bDir)\
  {\
    if ((bDir) == PCD_EP_DBUF_OUT)\
    { /* OUT double buffered endpoint */\
      PCD_TX_DTOG((USBx), (bEpNum));\
    }\
    else if ((bDir) == PCD_EP_DBUF_IN)\
    { /* IN double buffered endpoint */\
      PCD_RX_DTOG((USBx), (bEpNum));\
    }\
  }
  
  /**
    * @brief gets direction of the double buffered endpoint
    * @param   USBx: USB peripheral instance register address.
    * @param   bEpNum: Endpoint Number.
    * @retval EP_DBUF_OUT, EP_DBUF_IN,
    *         EP_DBUF_ERR if the endpoint counter not yet programmed.
    */
  #define PCD_GET_DB_DIR(USBx, bEpNum)\
  {\
    if ((uint16_t)(*PCD_EP_RX_CNT((USBx), (bEpNum)) & 0xFC00) != 0)\
      return(PCD_EP_DBUF_OUT);\
    else if (((uint16_t)(*PCD_EP_TX_CNT((USBx), (bEpNum))) & 0x03FF) != 0)\
      return(PCD_EP_DBUF_IN);\
    else\
      return(PCD_EP_DBUF_ERR);\
  }
  
  /**
    * @brief  sets the status for tx transfer (bits STAT_TX[1:0]).
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wState: new state
    * @retval None
    */
  #define PCD_SET_EP_TX_STATUS(USBx, bEpNum, wState) { register uint16_t _wRegVal;\
     \
      _wRegVal = PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPTX_DTOGMASK;\
     /* toggle first bit ? */     \
     if((USB_EPTX_DTOG1 & (wState))!= 0)\
     {                                                                            \
       _wRegVal ^= USB_EPTX_DTOG1;        \
     }                                                                            \
     /* toggle second bit ?  */         \
     if((USB_EPTX_DTOG2 & (wState))!= 0)      \
     {                                                                            \
       _wRegVal ^= USB_EPTX_DTOG2;        \
     }                                                                            \
     PCD_SET_ENDPOINT((USBx), (bEpNum), (_wRegVal | USB_EP_CTR_RX|USB_EP_CTR_TX));\
    } /* PCD_SET_EP_TX_STATUS */
  
  /**
    * @brief  sets the status for rx transfer (bits STAT_TX[1:0])
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wState: new state
    * @retval None
    */
  #define PCD_SET_EP_RX_STATUS(USBx, bEpNum,wState) {\
      register uint16_t _wRegVal;   \
      \
      _wRegVal = PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPRX_DTOGMASK;\
      /* toggle first bit ? */  \
      if((USB_EPRX_DTOG1 & (wState))!= 0) \
      {                                                                             \
        _wRegVal ^= USB_EPRX_DTOG1;  \
      }                                                                             \
      /* toggle second bit ? */  \
      if((USB_EPRX_DTOG2 & (wState))!= 0) \
      {                                                                             \
        _wRegVal ^= USB_EPRX_DTOG2;  \
      }                                                                             \
      PCD_SET_ENDPOINT((USBx), (bEpNum), (_wRegVal | USB_EP_CTR_RX|USB_EP_CTR_TX)); \
    } /* PCD_SET_EP_RX_STATUS */
  
  /**
    * @brief  sets the status for rx & tx (bits STAT_TX[1:0] & STAT_RX[1:0])
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wStaterx: new state.
    * @param  wStatetx: new state.
    * @retval None
    */
  #define PCD_SET_EP_TXRX_STATUS(USBx,bEpNum,wStaterx,wStatetx) {\
      register uint32_t _wRegVal;   \
      \
      _wRegVal = PCD_GET_ENDPOINT((USBx), (bEpNum)) & (USB_EPRX_DTOGMASK |USB_EPTX_STAT) ;\
      /* toggle first bit ? */  \
      if((USB_EPRX_DTOG1 & ((wStaterx)))!= 0) \
      {                                                                                    \
        _wRegVal ^= USB_EPRX_DTOG1;  \
      }                                                                                    \
      /* toggle second bit ? */  \
      if((USB_EPRX_DTOG2 & (wStaterx))!= 0) \
      {                                                                                    \
        _wRegVal ^= USB_EPRX_DTOG2;  \
      }                                                                                    \
      /* toggle first bit ? */     \
      if((USB_EPTX_DTOG1 & (wStatetx))!= 0)      \
      {                                                                                    \
        _wRegVal ^= USB_EPTX_DTOG1;        \
      }                                                                                    \
      /* toggle second bit ?  */         \
      if((USB_EPTX_DTOG2 & (wStatetx))!= 0)      \
      {                                                                                    \
        _wRegVal ^= USB_EPTX_DTOG2;        \
      }                                                                                    \
      PCD_SET_ENDPOINT((USBx), (bEpNum), _wRegVal | USB_EP_CTR_RX|USB_EP_CTR_TX);    \
    } /* PCD_SET_EP_TXRX_STATUS */
  
  /**
    * @brief  gets the status for tx/rx transfer (bits STAT_TX[1:0]
    *         /STAT_RX[1:0])
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval status
    */
  #define PCD_GET_EP_TX_STATUS(USBx, bEpNum)     ((uint16_t)PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPTX_STAT)
  #define PCD_GET_EP_RX_STATUS(USBx, bEpNum)     ((uint16_t)PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPRX_STAT)
  
  /**
    * @brief  sets directly the VALID tx/rx-status into the endpoint register
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_SET_EP_TX_VALID(USBx, bEpNum)      (PCD_SET_EP_TX_STATUS((USBx), (bEpNum), USB_EP_TX_VALID))
  #define PCD_SET_EP_RX_VALID(USBx, bEpNum)      (PCD_SET_EP_RX_STATUS((USBx), (bEpNum), USB_EP_RX_VALID))
  
  /**
    * @brief  checks stall condition in an endpoint.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval TRUE = endpoint in stall condition.
    */
  #define PCD_GET_EP_TX_STALL_STATUS(USBx, bEpNum) (PCD_GET_EP_TX_STATUS((USBx), (bEpNum)) \
                                     == USB_EP_TX_STALL)
  #define PCD_GET_EP_RX_STALL_STATUS(USBx, bEpNum) (PCD_GET_EP_RX_STATUS((USBx), (bEpNum)) \
                                     == USB_EP_RX_STALL)
  
  /**
    * @brief  set & clear EP_KIND bit.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_SET_EP_KIND(USBx, bEpNum)    (PCD_SET_ENDPOINT((USBx), (bEpNum), \
                                  (USB_EP_CTR_RX|USB_EP_CTR_TX|((PCD_GET_ENDPOINT((USBx), (bEpNum)) | USB_EP_KIND) & USB_EPREG_MASK))))
  #define PCD_CLEAR_EP_KIND(USBx, bEpNum)  (PCD_SET_ENDPOINT((USBx), (bEpNum), \
                                  (USB_EP_CTR_RX|USB_EP_CTR_TX|(PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPKIND_MASK))))
  
  /**
    * @brief  Sets/clears directly STATUS_OUT bit in the endpoint register.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_SET_OUT_STATUS(USBx, bEpNum)       PCD_SET_EP_KIND((USBx), (bEpNum))
  #define PCD_CLEAR_OUT_STATUS(USBx, bEpNum)     PCD_CLEAR_EP_KIND((USBx), (bEpNum))
  
  /**
    * @brief  Sets/clears directly EP_KIND bit in the endpoint register.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_SET_EP_DBUF(USBx, bEpNum)          PCD_SET_EP_KIND((USBx), (bEpNum))
  #define PCD_CLEAR_EP_DBUF(USBx, bEpNum)        PCD_CLEAR_EP_KIND((USBx), (bEpNum))
  
  /**
    * @brief  Clears bit CTR_RX / CTR_TX in the endpoint register.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_CLEAR_RX_EP_CTR(USBx, bEpNum)   (PCD_SET_ENDPOINT((USBx), (bEpNum),\
                                     PCD_GET_ENDPOINT((USBx), (bEpNum)) & 0x7FFF & USB_EPREG_MASK))
  #define PCD_CLEAR_TX_EP_CTR(USBx, bEpNum)   (PCD_SET_ENDPOINT((USBx), (bEpNum),\
                                     PCD_GET_ENDPOINT((USBx), (bEpNum)) & 0xFF7F & USB_EPREG_MASK))
  
  /**
    * @brief  Toggles DTOG_RX / DTOG_TX bit in the endpoint register.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_RX_DTOG(USBx, bEpNum)    (PCD_SET_ENDPOINT((USBx), (bEpNum), \
                                     USB_EP_CTR_RX|USB_EP_CTR_TX|USB_EP_DTOG_RX | (PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPREG_MASK)))
  #define PCD_TX_DTOG(USBx, bEpNum)    (PCD_SET_ENDPOINT((USBx), (bEpNum), \
                                     USB_EP_CTR_RX|USB_EP_CTR_TX|USB_EP_DTOG_TX | (PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPREG_MASK)))
  
  /**
    * @brief  Clears DTOG_RX / DTOG_TX bit in the endpoint register.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_CLEAR_RX_DTOG(USBx, bEpNum)  if((PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EP_DTOG_RX) != 0)\
                                           {                                                              \
                                             PCD_RX_DTOG((USBx), (bEpNum));                               \
                                           }
  #define PCD_CLEAR_TX_DTOG(USBx, bEpNum)  if((PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EP_DTOG_TX) != 0)\
                                           {                                                              \
                                              PCD_TX_DTOG((USBx), (bEpNum));                              \
                                           }
        
  /**
    * @brief  Sets address in an endpoint register.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  bAddr: Address.
    * @retval None
    */
  #define PCD_SET_EP_ADDRESS(USBx, bEpNum,bAddr) PCD_SET_ENDPOINT((USBx), (bEpNum),\
      USB_EP_CTR_RX|USB_EP_CTR_TX|(PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPREG_MASK) | (bAddr))
  
  #define PCD_GET_EP_ADDRESS(USBx, bEpNum) ((uint8_t)(PCD_GET_ENDPOINT((USBx), (bEpNum)) & USB_EPADDR_FIELD))
  
  #define PCD_EP_TX_ADDRESS(USBx, bEpNum) ((uint16_t *)(((USBx)->BTABLE+(bEpNum)*8)+     ((uint32_t)(USBx) + 0x400)))
  #define PCD_EP_TX_CNT(USBx, bEpNum) ((uint16_t *)(((USBx)->BTABLE+(bEpNum)*8+2)+  ((uint32_t)(USBx) + 0x400)))
  #define PCD_EP_RX_ADDRESS(USBx, bEpNum) ((uint16_t *)(((USBx)->BTABLE+(bEpNum)*8+4)+  ((uint32_t)(USBx) + 0x400)))
  #define PCD_EP_RX_CNT(USBx, bEpNum) ((uint16_t *)(((USBx)->BTABLE+(bEpNum)*8+6)+  ((uint32_t)(USBx) + 0x400)))
  
  #define PCD_SET_EP_RX_CNT(USBx, bEpNum,wCount) {\
      uint16_t *pdwReg = PCD_EP_RX_CNT((USBx), (bEpNum)); \
      PCD_SET_EP_CNT_RX_REG(pdwReg, (wCount));\
    }
  
  /**
    * @brief  sets address of the tx/rx buffer.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wAddr: address to be set (must be word aligned).
    * @retval None
    */
  #define PCD_SET_EP_TX_ADDRESS(USBx, bEpNum,wAddr) (*PCD_EP_TX_ADDRESS((USBx), (bEpNum)) = (((wAddr) >> 1) << 1))
  #define PCD_SET_EP_RX_ADDRESS(USBx, bEpNum,wAddr) (*PCD_EP_RX_ADDRESS((USBx), (bEpNum)) = (((wAddr) >> 1) << 1))
  
  /**
    * @brief  Gets address of the tx/rx buffer.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval address of the buffer.
    */
  #define PCD_GET_EP_TX_ADDRESS(USBx, bEpNum) ((uint16_t)*PCD_EP_TX_ADDRESS((USBx), (bEpNum)))
  #define PCD_GET_EP_RX_ADDRESS(USBx, bEpNum) ((uint16_t)*PCD_EP_RX_ADDRESS((USBx), (bEpNum)))
  
  /**
    * @brief  Sets counter of rx buffer with no. of blocks.
    * @param  dwReg: Register
    * @param  wCount: Counter.
    * @param  wNBlocks: no. of Blocks.
    * @retval None
    */
  #define PCD_CALC_BLK32(dwReg,wCount,wNBlocks) {\
      (wNBlocks) = (wCount) >> 5;\
      if(((wCount) & 0x1f) == 0)\
      {                                                  \
        (wNBlocks)--;\
      }                                                  \
      *pdwReg = (uint16_t)((uint16_t)((wNBlocks) << 10) | 0x8000); \
    }/* PCD_CALC_BLK32 */
  
  #define PCD_CALC_BLK2(dwReg,wCount,wNBlocks) {\
      (wNBlocks) = (wCount) >> 1;\
      if(((wCount) & 0x1) != 0)\
      {                                                  \
        (wNBlocks)++;\
      }                                                  \
      *pdwReg = (uint16_t)((wNBlocks) << 10);\
    }/* PCD_CALC_BLK2 */
  
  #define PCD_SET_EP_CNT_RX_REG(dwReg,wCount)  {\
      uint16_t wNBlocks;\
      if((wCount) > 62)                                \
      {                                                \
        PCD_CALC_BLK32((dwReg),(wCount),wNBlocks);     \
      }                                                \
      else                                             \
      {                                                \
        PCD_CALC_BLK2((dwReg),(wCount),wNBlocks);      \
      }                                                \
    }/* PCD_SET_EP_CNT_RX_REG */
  
  #define PCD_SET_EP_RX_DBUF0_CNT(USBx, bEpNum,wCount) {\
      uint16_t *pdwReg = PCD_EP_TX_CNT((USBx), (bEpNum)); \
      PCD_SET_EP_CNT_RX_REG(pdwReg, (wCount));\
    }
  
  /**
    * @brief  sets counter for the tx/rx buffer.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wCount: Counter value.
    * @retval None
    */
  #define PCD_SET_EP_TX_CNT(USBx, bEpNum,wCount) (*PCD_EP_TX_CNT((USBx), (bEpNum)) = (wCount))
  
  
  /**
    * @brief  gets counter of the tx buffer.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval Counter value
    */
  #define PCD_GET_EP_TX_CNT(USBx, bEpNum)        ((uint16_t)(*PCD_EP_TX_CNT((USBx), (bEpNum))) & 0x3ff)
  #define PCD_GET_EP_RX_CNT(USBx, bEpNum)        ((uint16_t)(*PCD_EP_RX_CNT((USBx), (bEpNum))) & 0x3ff)
  
  /**
    * @brief  Sets buffer 0/1 address in a double buffer endpoint.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wBuf0Addr: buffer 0 address.
    * @retval Counter value
    */
  #define PCD_SET_EP_DBUF0_ADDR(USBx, bEpNum,wBuf0Addr) {PCD_SET_EP_TX_ADDRESS((USBx), (bEpNum), (wBuf0Addr));}
  #define PCD_SET_EP_DBUF1_ADDR(USBx, bEpNum,wBuf1Addr) {PCD_SET_EP_RX_ADDRESS((USBx), (bEpNum), (wBuf1Addr));}
  
  /**
    * @brief  Sets addresses in a double buffer endpoint.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  wBuf0Addr: buffer 0 address.
    * @param  wBuf1Addr = buffer 1 address.
    * @retval None
    */
  #define PCD_SET_EP_DBUF_ADDR(USBx, bEpNum,wBuf0Addr,wBuf1Addr) { \
      PCD_SET_EP_DBUF0_ADDR((USBx), (bEpNum), (wBuf0Addr));\
      PCD_SET_EP_DBUF1_ADDR((USBx), (bEpNum), (wBuf1Addr));\
    } /* PCD_SET_EP_DBUF_ADDR */
  
  /**
    * @brief  Gets buffer 0/1 address of a double buffer endpoint.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_GET_EP_DBUF0_ADDR(USBx, bEpNum)    (PCD_GET_EP_TX_ADDRESS((USBx), (bEpNum)))
  #define PCD_GET_EP_DBUF1_ADDR(USBx, bEpNum)    (PCD_GET_EP_RX_ADDRESS((USBx), (bEpNum)))
  
  /**
    * @brief  Gets buffer 0/1 address of a double buffer endpoint.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @param  bDir: endpoint dir  EP_DBUF_OUT = OUT 
    *         EP_DBUF_IN  = IN 
    * @param  wCount: Counter value 
    * @retval None
    */
  #define PCD_SET_EP_DBUF0_CNT(USBx, bEpNum, bDir, wCount)  { \
      if((bDir) == PCD_EP_DBUF_OUT)\
        /* OUT endpoint */ \
      {PCD_SET_EP_RX_DBUF0_CNT((USBx), (bEpNum),(wCount));} \
      else if((bDir) == PCD_EP_DBUF_IN)\
        /* IN endpoint */ \
        *PCD_EP_TX_CNT((USBx), (bEpNum)) = (uint32_t)(wCount);  \
    } /* SetEPDblBuf0Count*/
  
  #define PCD_SET_EP_DBUF1_CNT(USBx, bEpNum, bDir, wCount)  { \
      if((bDir) == PCD_EP_DBUF_OUT)\
      {/* OUT endpoint */                                       \
        PCD_SET_EP_RX_CNT((USBx), (bEpNum),(wCount));           \
      }                                                         \
      else if((bDir) == PCD_EP_DBUF_IN)\
      {/* IN endpoint */                                        \
        *PCD_EP_TX_CNT((USBx), (bEpNum)) = (uint32_t)(wCount); \
      }                                                         \
    } /* SetEPDblBuf1Count */
  
  #define PCD_SET_EP_DBUF_CNT(USBx, bEpNum, bDir, wCount) {\
      PCD_SET_EP_DBUF0_CNT((USBx), (bEpNum), (bDir), (wCount)); \
      PCD_SET_EP_DBUF1_CNT((USBx), (bEpNum), (bDir), (wCount)); \
    } /* PCD_SET_EP_DBUF_CNT  */
  
  /**
    * @brief  Gets buffer 0/1 rx/tx counter for double buffering.
    * @param  USBx: USB peripheral instance register address.
    * @param  bEpNum: Endpoint Number.
    * @retval None
    */
  #define PCD_GET_EP_DBUF0_CNT(USBx, bEpNum)     (PCD_GET_EP_TX_CNT((USBx), (bEpNum)))
  #define PCD_GET_EP_DBUF1_CNT(USBx, bEpNum)     (PCD_GET_EP_RX_CNT((USBx), (bEpNum)))
  
  #endif /* USB */
  
  #if defined(STM32L432xx) || defined(STM32L433xx) || defined(STM32L442xx) || defined(STM32L443xx) || \
      defined(STM32L452xx) || defined(STM32L462xx)
  
  /** @defgroup PCD_Instance_definition PCD Instance definition
    * @{
    */
  #define IS_PCD_ALL_INSTANCE                                        IS_USB_ALL_INSTANCE
  /**
    * @}
    */
  #endif /* STM32L432xx || STM32L433xx || STM32L442xx || STM32L443xx || */
         /* STM32L452xx || STM32L462xx */
    
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  #endif /* STM32L432xx || STM32L433xx || STM32L442xx || STM32L443xx || */
         /* STM32L452xx || STM32L462xx || */
         /* STM32L475xx || STM32L476xx || STM32L485xx || STM32L486xx || */
         /* STM32L496xx || STM32L4A6xx || */
         /* STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx */
  
  #ifdef __cplusplus
  }
  #endif
  
  
  #endif /* __STM32L4xx_HAL_PCD_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  