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 /**
   ******************************************************************************
   * @file    stm32h7xx_hal_hcd.c
   * @author  MCD Application Team
   * @brief   HCD HAL module driver.
   *          This file provides firmware functions to manage the following
   *          functionalities of the USB Peripheral Controller:
   *           + Initialization and de-initialization functions
   *           + IO operation functions
   *           + Peripheral Control functions
   *           + Peripheral State functions
   *
   ******************************************************************************
   * @attention
   *
   * Copyright (c) 2017 STMicroelectronics.
   * All rights reserved.
   *
   * This software is licensed under terms that can be found in the LICENSE file
   * in the root directory of this software component.
   * If no LICENSE file comes with this software, it is provided AS-IS.
   *
   ******************************************************************************
   @verbatim
   ==============================================================================
                     ##### How to use this driver #####
   ==============================================================================
   [..]
     (#)Declare a HCD_HandleTypeDef handle structure, for example:
        HCD_HandleTypeDef  hhcd;
 
     (#)Fill parameters of Init structure in HCD handle
 
     (#)Call HAL_HCD_Init() API to initialize the HCD peripheral (Core, Host core, ...)
 
     (#)Initialize the HCD low level resources through the HAL_HCD_MspInit() API:
         (##) Enable the HCD/USB Low Level interface clock using the following macros
              (+++) __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
              (+++) __HAL_RCC_USB_OTG_HS_CLK_ENABLE(); (For High Speed Mode)
              (+++) __HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE(); (For High Speed Mode)
 
         (##) Initialize the related GPIO clocks
         (##) Configure HCD pin-out
         (##) Configure HCD NVIC interrupt
 
     (#)Associate the Upper USB Host stack to the HAL HCD Driver:
         (##) hhcd.pData = phost;
 
     (#)Enable HCD transmission and reception:
         (##) HAL_HCD_Start();
 
   @endverbatim
   ******************************************************************************
   */
 
 /* Includes ------------------------------------------------------------------*/
 #include "stm32h7xx_hal.h"
 
 /** @addtogroup STM32H7xx_HAL_Driver
   * @{
   */
 
 #ifdef HAL_HCD_MODULE_ENABLED
 #if defined (USB_OTG_FS) || defined (USB_OTG_HS)
 
 /** @defgroup HCD HCD
   * @ingroup RTEMSBSPsARMSTM32H7
   * @brief HCD HAL module driver
   * @{
   */
 
 /* Private typedef -----------------------------------------------------------*/
 /* Private define ------------------------------------------------------------*/
 /* Private macro -------------------------------------------------------------*/
 /* Private variables ---------------------------------------------------------*/
 /* Private function prototypes -----------------------------------------------*/
 /** @defgroup HCD_Private_Functions HCD Private Functions
   * @ingroup RTEMSBSPsARMSTM32H7
   * @{
   */
 static void HCD_HC_IN_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum);
 static void HCD_HC_OUT_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum);
 static void HCD_RXQLVL_IRQHandler(HCD_HandleTypeDef *hhcd);
 static void HCD_Port_IRQHandler(HCD_HandleTypeDef *hhcd);
 /**
   * @}
   */
 
 /* Exported functions --------------------------------------------------------*/
 /** @defgroup HCD_Exported_Functions HCD Exported Functions
   * @ingroup RTEMSBSPsARMSTM32H7
   * @{
   */
 
 /** @defgroup HCD_Exported_Functions_Group1 Initialization and de-initialization functions
   * @ingroup RTEMSBSPsARMSTM32H7
   *  @brief    Initialization and Configuration functions
   *
 @verbatim
  ===============================================================================
           ##### Initialization and de-initialization functions #####
  ===============================================================================
     [..]  This section provides functions allowing to:
 
 @endverbatim
   * @{
   */
 
 /**
   * @brief  Initialize the host driver.
   * @param  hhcd HCD handle
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_Init(HCD_HandleTypeDef *hhcd)
 {
   /* Check the HCD handle allocation */
   if (hhcd == NULL)
   {
     return HAL_ERROR;
   }
 
   /* Check the parameters */
   assert_param(IS_HCD_ALL_INSTANCE(hhcd->Instance));
 
   if (hhcd->State == HAL_HCD_STATE_RESET)
   {
     /* Allocate lock resource and initialize it */
     hhcd->Lock = HAL_UNLOCKED;
 
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
     hhcd->SOFCallback = HAL_HCD_SOF_Callback;
     hhcd->ConnectCallback = HAL_HCD_Connect_Callback;
     hhcd->DisconnectCallback = HAL_HCD_Disconnect_Callback;
     hhcd->PortEnabledCallback = HAL_HCD_PortEnabled_Callback;
     hhcd->PortDisabledCallback = HAL_HCD_PortDisabled_Callback;
     hhcd->HC_NotifyURBChangeCallback = HAL_HCD_HC_NotifyURBChange_Callback;
 
     if (hhcd->MspInitCallback == NULL)
     {
       hhcd->MspInitCallback = HAL_HCD_MspInit;
     }
 
     /* Init the low level hardware */
     hhcd->MspInitCallback(hhcd);
 #else
     /* Init the low level hardware : GPIO, CLOCK, NVIC... */
     HAL_HCD_MspInit(hhcd);
 #endif /* (USE_HAL_HCD_REGISTER_CALLBACKS) */
   }
 
   hhcd->State = HAL_HCD_STATE_BUSY;
 
   /* Disable the Interrupts */
   __HAL_HCD_DISABLE(hhcd);
 
   /* Init the Core (common init.) */
   if (USB_CoreInit(hhcd->Instance, hhcd->Init) != HAL_OK)
   {
     hhcd->State = HAL_HCD_STATE_ERROR;
     return HAL_ERROR;
   }
 
   /* Force Host Mode */
   if (USB_SetCurrentMode(hhcd->Instance, USB_HOST_MODE) != HAL_OK)
   {
     hhcd->State = HAL_HCD_STATE_ERROR;
     return HAL_ERROR;
   }
 
   /* Init Host */
   if (USB_HostInit(hhcd->Instance, hhcd->Init) != HAL_OK)
   {
     hhcd->State = HAL_HCD_STATE_ERROR;
     return HAL_ERROR;
   }
 
   hhcd->State = HAL_HCD_STATE_READY;
 
   return HAL_OK;
 }
 
 /**
   * @brief  Initialize a host channel.
   * @param  hhcd HCD handle
   * @param  ch_num Channel number.
   *         This parameter can be a value from 1 to 15
   * @param  epnum Endpoint number.
   *          This parameter can be a value from 1 to 15
   * @param  dev_address Current device address
   *          This parameter can be a value from 0 to 255
   * @param  speed Current device speed.
   *          This parameter can be one of these values:
   *            HCD_DEVICE_SPEED_HIGH: High speed mode,
   *            HCD_DEVICE_SPEED_FULL: Full speed mode,
   *            HCD_DEVICE_SPEED_LOW: Low speed mode
   * @param  ep_type Endpoint Type.
   *          This parameter can be one of these values:
   *            EP_TYPE_CTRL: Control type,
   *            EP_TYPE_ISOC: Isochronous type,
   *            EP_TYPE_BULK: Bulk type,
   *            EP_TYPE_INTR: Interrupt type
   * @param  mps Max Packet Size.
   *          This parameter can be a value from 0 to32K
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_HC_Init(HCD_HandleTypeDef *hhcd, uint8_t ch_num, uint8_t epnum,
                                   uint8_t dev_address, uint8_t speed, uint8_t ep_type, uint16_t mps)
 {
   HAL_StatusTypeDef status;
   uint32_t HostCoreSpeed;
   uint32_t HCcharMps = mps;
 
   __HAL_LOCK(hhcd);
   hhcd->hc[ch_num].do_ping = 0U;
   hhcd->hc[ch_num].dev_addr = dev_address;
   hhcd->hc[ch_num].ch_num = ch_num;
   hhcd->hc[ch_num].ep_type = ep_type;
   hhcd->hc[ch_num].ep_num = epnum & 0x7FU;
 
   (void)HAL_HCD_HC_ClearHubInfo(hhcd, ch_num);
 
   if ((epnum & 0x80U) == 0x80U)
   {
     hhcd->hc[ch_num].ep_is_in = 1U;
   }
   else
   {
     hhcd->hc[ch_num].ep_is_in = 0U;
   }
 
   HostCoreSpeed = USB_GetHostSpeed(hhcd->Instance);
 
   if (ep_type == EP_TYPE_ISOC)
   {
     /* FS device plugged to HS HUB */
     if ((speed == HCD_DEVICE_SPEED_FULL) && (HostCoreSpeed == HPRT0_PRTSPD_HIGH_SPEED))
     {
       if (HCcharMps > ISO_SPLT_MPS)
       {
         /* ISO Max Packet Size for Split mode */
         HCcharMps = ISO_SPLT_MPS;
       }
     }
   }
 
   hhcd->hc[ch_num].speed = speed;
   hhcd->hc[ch_num].max_packet = (uint16_t)HCcharMps;
 
   status =  USB_HC_Init(hhcd->Instance, ch_num, epnum,
                         dev_address, speed, ep_type, (uint16_t)HCcharMps);
 
   __HAL_UNLOCK(hhcd);
 
   return status;
 }
 
 /**
   * @brief  Halt a host channel.
   * @param  hhcd HCD handle
   * @param  ch_num Channel number.
   *         This parameter can be a value from 1 to 15
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_HC_Halt(HCD_HandleTypeDef *hhcd, uint8_t ch_num)
 {
   HAL_StatusTypeDef status = HAL_OK;
 
   __HAL_LOCK(hhcd);
   (void)USB_HC_Halt(hhcd->Instance, ch_num);
   __HAL_UNLOCK(hhcd);
 
   return status;
 }
 
 /**
   * @brief  DeInitialize the host driver.
   * @param  hhcd HCD handle
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_DeInit(HCD_HandleTypeDef *hhcd)
 {
   /* Check the HCD handle allocation */
   if (hhcd == NULL)
   {
     return HAL_ERROR;
   }
 
   hhcd->State = HAL_HCD_STATE_BUSY;
 
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
   if (hhcd->MspDeInitCallback == NULL)
   {
     hhcd->MspDeInitCallback = HAL_HCD_MspDeInit; /* Legacy weak MspDeInit  */
   }
 
   /* DeInit the low level hardware */
   hhcd->MspDeInitCallback(hhcd);
 #else
   /* DeInit the low level hardware: CLOCK, NVIC.*/
   HAL_HCD_MspDeInit(hhcd);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
 
   __HAL_HCD_DISABLE(hhcd);
 
   hhcd->State = HAL_HCD_STATE_RESET;
 
   return HAL_OK;
 }
 
 /**
   * @brief  Initialize the HCD MSP.
   * @param  hhcd HCD handle
   * @retval None
   */
 __weak void  HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_MspInit could be implemented in the user file
    */
 }
 
 /**
   * @brief  DeInitialize the HCD MSP.
   * @param  hhcd HCD handle
   * @retval None
   */
 __weak void  HAL_HCD_MspDeInit(HCD_HandleTypeDef *hhcd)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_MspDeInit could be implemented in the user file
    */
 }
 
 /**
   * @}
   */
 
 /** @defgroup HCD_Exported_Functions_Group2 Input and Output operation functions
   * @ingroup RTEMSBSPsARMSTM32H7
   *  @brief   HCD IO operation functions
   *
 @verbatim
  ===============================================================================
                       ##### IO operation functions #####
  ===============================================================================
  [..] This subsection provides a set of functions allowing to manage the USB Host Data
     Transfer
 
 @endverbatim
   * @{
   */
 
 /**
   * @brief  Submit a new URB for processing.
   * @param  hhcd HCD handle
   * @param  ch_num Channel number.
   *         This parameter can be a value from 1 to 15
   * @param  direction Channel number.
   *          This parameter can be one of these values:
   *           0 : Output / 1 : Input
   * @param  ep_type Endpoint Type.
   *          This parameter can be one of these values:
   *            EP_TYPE_CTRL: Control type/
   *            EP_TYPE_ISOC: Isochronous type/
   *            EP_TYPE_BULK: Bulk type/
   *            EP_TYPE_INTR: Interrupt type/
   * @param  token Endpoint Type.
   *          This parameter can be one of these values:
   *            0: HC_PID_SETUP / 1: HC_PID_DATA1
   * @param  pbuff pointer to URB data
   * @param  length Length of URB data
   * @param  do_ping activate do ping protocol (for high speed only).
   *          This parameter can be one of these values:
   *           0 : do ping inactive / 1 : do ping active
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_HC_SubmitRequest(HCD_HandleTypeDef *hhcd,
                                            uint8_t ch_num,
                                            uint8_t direction,
                                            uint8_t ep_type,
                                            uint8_t token,
                                            uint8_t *pbuff,
                                            uint16_t length,
                                            uint8_t do_ping)
 {
   hhcd->hc[ch_num].ep_is_in = direction;
   hhcd->hc[ch_num].ep_type  = ep_type;
 
   if (token == 0U)
   {
     hhcd->hc[ch_num].data_pid = HC_PID_SETUP;
     hhcd->hc[ch_num].do_ping = do_ping;
   }
   else
   {
     hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
   }
 
   /* Manage Data Toggle */
   switch (ep_type)
   {
     case EP_TYPE_CTRL:
       if (token == 1U) /* send data */
       {
         if (direction == 0U)
         {
           if (length == 0U)
           {
             /* For Status OUT stage, Length == 0U, Status Out PID = 1 */
             hhcd->hc[ch_num].toggle_out = 1U;
           }
 
           /* Set the Data Toggle bit as per the Flag */
           if (hhcd->hc[ch_num].toggle_out == 0U)
           {
             /* Put the PID 0 */
             hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
           }
           else
           {
             /* Put the PID 1 */
             hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
           }
         }
         else
         {
           if (hhcd->hc[ch_num].do_ssplit == 1U)
           {
             if (hhcd->hc[ch_num].toggle_in == 0U)
             {
               hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
             }
             else
             {
               hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
             }
           }
         }
       }
       break;
 
     case EP_TYPE_BULK:
       if (direction == 0U)
       {
         /* Set the Data Toggle bit as per the Flag */
         if (hhcd->hc[ch_num].toggle_out == 0U)
         {
           /* Put the PID 0 */
           hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
         }
         else
         {
           /* Put the PID 1 */
           hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
         }
       }
       else
       {
         if (hhcd->hc[ch_num].toggle_in == 0U)
         {
           hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
         }
         else
         {
           hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
         }
       }
 
       break;
     case EP_TYPE_INTR:
       if (direction == 0U)
       {
         /* Set the Data Toggle bit as per the Flag */
         if (hhcd->hc[ch_num].toggle_out == 0U)
         {
           /* Put the PID 0 */
           hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
         }
         else
         {
           /* Put the PID 1 */
           hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
         }
       }
       else
       {
         if (hhcd->hc[ch_num].toggle_in == 0U)
         {
           hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
         }
         else
         {
           hhcd->hc[ch_num].data_pid = HC_PID_DATA1;
         }
       }
       break;
 
     case EP_TYPE_ISOC:
       hhcd->hc[ch_num].data_pid = HC_PID_DATA0;
       break;
 
     default:
       break;
   }
 
   hhcd->hc[ch_num].xfer_buff = pbuff;
   hhcd->hc[ch_num].xfer_len  = length;
   hhcd->hc[ch_num].urb_state = URB_IDLE;
   hhcd->hc[ch_num].xfer_count = 0U;
   hhcd->hc[ch_num].ch_num = ch_num;
   hhcd->hc[ch_num].state = HC_IDLE;
 
   return USB_HC_StartXfer(hhcd->Instance, &hhcd->hc[ch_num], (uint8_t)hhcd->Init.dma_enable);
 }
 
 /**
   * @brief  Handle HCD interrupt request.
   * @param  hhcd HCD handle
   * @retval None
   */
 void HAL_HCD_IRQHandler(HCD_HandleTypeDef *hhcd)
 {
   USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
   uint32_t USBx_BASE = (uint32_t)USBx;
   uint32_t i;
   uint32_t interrupt;
 
   /* Ensure that we are in device mode */
   if (USB_GetMode(hhcd->Instance) == USB_OTG_MODE_HOST)
   {
     /* Avoid spurious interrupt */
     if (__HAL_HCD_IS_INVALID_INTERRUPT(hhcd))
     {
       return;
     }
 
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT))
     {
       /* Incorrect mode, acknowledge the interrupt */
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT);
     }
 
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR))
     {
       /* Incorrect mode, acknowledge the interrupt */
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR);
     }
 
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE))
     {
       /* Incorrect mode, acknowledge the interrupt */
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE);
     }
 
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_MMIS))
     {
       /* Incorrect mode, acknowledge the interrupt */
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_MMIS);
     }
 
     /* Handle Host Disconnect Interrupts */
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT))
     {
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT);
 
       if ((USBx_HPRT0 & USB_OTG_HPRT_PCSTS) == 0U)
       {
         /* Flush USB Fifo */
         (void)USB_FlushTxFifo(USBx, 0x10U);
         (void)USB_FlushRxFifo(USBx);
 
         if (hhcd->Init.phy_itface == USB_OTG_EMBEDDED_PHY)
         {
           /* Restore FS Clock */
           (void)USB_InitFSLSPClkSel(hhcd->Instance, HCFG_48_MHZ);
         }
 
         /* Handle Host Port Disconnect Interrupt */
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
         hhcd->DisconnectCallback(hhcd);
 #else
         HAL_HCD_Disconnect_Callback(hhcd);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
       }
     }
 
     /* Handle Host Port Interrupts */
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HPRTINT))
     {
       HCD_Port_IRQHandler(hhcd);
     }
 
     /* Handle Host SOF Interrupt */
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_SOF))
     {
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
       hhcd->SOFCallback(hhcd);
 #else
       HAL_HCD_SOF_Callback(hhcd);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
 
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_SOF);
     }
 
     /* Handle Host channel Interrupt */
     if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HCINT))
     {
       interrupt = USB_HC_ReadInterrupt(hhcd->Instance);
       for (i = 0U; i < hhcd->Init.Host_channels; i++)
       {
         if ((interrupt & (1UL << (i & 0xFU))) != 0U)
         {
           if ((USBx_HC(i)->HCCHAR & USB_OTG_HCCHAR_EPDIR) == USB_OTG_HCCHAR_EPDIR)
           {
             HCD_HC_IN_IRQHandler(hhcd, (uint8_t)i);
           }
           else
           {
             HCD_HC_OUT_IRQHandler(hhcd, (uint8_t)i);
           }
         }
       }
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_HCINT);
     }
 
     /* Handle Rx Queue Level Interrupts */
     if ((__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_RXFLVL)) != 0U)
     {
       USB_MASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL);
 
       HCD_RXQLVL_IRQHandler(hhcd);
 
       USB_UNMASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL);
     }
   }
 }
 
 
 /**
   * @brief  SOF callback.
   * @param  hhcd HCD handle
   * @retval None
   */
 __weak void HAL_HCD_SOF_Callback(HCD_HandleTypeDef *hhcd)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_SOF_Callback could be implemented in the user file
    */
 }
 
 /**
   * @brief Connection Event callback.
   * @param  hhcd HCD handle
   * @retval None
   */
 __weak void HAL_HCD_Connect_Callback(HCD_HandleTypeDef *hhcd)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_Connect_Callback could be implemented in the user file
    */
 }
 
 /**
   * @brief  Disconnection Event callback.
   * @param  hhcd HCD handle
   * @retval None
   */
 __weak void HAL_HCD_Disconnect_Callback(HCD_HandleTypeDef *hhcd)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_Disconnect_Callback could be implemented in the user file
    */
 }
 
 /**
   * @brief  Port Enabled  Event callback.
   * @param  hhcd HCD handle
   * @retval None
   */
 __weak void HAL_HCD_PortEnabled_Callback(HCD_HandleTypeDef *hhcd)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_Disconnect_Callback could be implemented in the user file
    */
 }
 
 /**
   * @brief  Port Disabled  Event callback.
   * @param  hhcd HCD handle
   * @retval None
   */
 __weak void HAL_HCD_PortDisabled_Callback(HCD_HandleTypeDef *hhcd)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_Disconnect_Callback could be implemented in the user file
    */
 }
 
 /**
   * @brief  Notify URB state change callback.
   * @param  hhcd HCD handle
   * @param  chnum Channel number.
   *         This parameter can be a value from 1 to 15
   * @param  urb_state:
   *          This parameter can be one of these values:
   *            URB_IDLE/
   *            URB_DONE/
   *            URB_NOTREADY/
   *            URB_NYET/
   *            URB_ERROR/
   *            URB_STALL/
   * @retval None
   */
 __weak void HAL_HCD_HC_NotifyURBChange_Callback(HCD_HandleTypeDef *hhcd, uint8_t chnum, HCD_URBStateTypeDef urb_state)
 {
   /* Prevent unused argument(s) compilation warning */
   UNUSED(hhcd);
   UNUSED(chnum);
   UNUSED(urb_state);
 
   /* NOTE : This function should not be modified, when the callback is needed,
             the HAL_HCD_HC_NotifyURBChange_Callback could be implemented in the user file
    */
 }
 
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
 /**
   * @brief  Register a User USB HCD Callback
   *         To be used instead of the weak predefined callback
   * @param  hhcd USB HCD handle
   * @param  CallbackID ID of the callback to be registered
   *         This parameter can be one of the following values:
   *          @arg @ref HAL_HCD_SOF_CB_ID USB HCD SOF callback ID
   *          @arg @ref HAL_HCD_CONNECT_CB_ID USB HCD Connect callback ID
   *          @arg @ref HAL_HCD_DISCONNECT_CB_ID OTG HCD Disconnect callback ID
   *          @arg @ref HAL_HCD_PORT_ENABLED_CB_ID USB HCD Port Enable callback ID
   *          @arg @ref HAL_HCD_PORT_DISABLED_CB_ID USB HCD Port Disable callback ID
   *          @arg @ref HAL_HCD_MSPINIT_CB_ID MspDeInit callback ID
   *          @arg @ref HAL_HCD_MSPDEINIT_CB_ID MspDeInit callback ID
   * @param  pCallback pointer to the Callback function
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_RegisterCallback(HCD_HandleTypeDef *hhcd,
                                            HAL_HCD_CallbackIDTypeDef CallbackID,
                                            pHCD_CallbackTypeDef pCallback)
 {
   HAL_StatusTypeDef status = HAL_OK;
 
   if (pCallback == NULL)
   {
     /* Update the error code */
     hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
     return HAL_ERROR;
   }
   /* Process locked */
   __HAL_LOCK(hhcd);
 
   if (hhcd->State == HAL_HCD_STATE_READY)
   {
     switch (CallbackID)
     {
       case HAL_HCD_SOF_CB_ID :
         hhcd->SOFCallback = pCallback;
         break;
 
       case HAL_HCD_CONNECT_CB_ID :
         hhcd->ConnectCallback = pCallback;
         break;
 
       case HAL_HCD_DISCONNECT_CB_ID :
         hhcd->DisconnectCallback = pCallback;
         break;
 
       case HAL_HCD_PORT_ENABLED_CB_ID :
         hhcd->PortEnabledCallback = pCallback;
         break;
 
       case HAL_HCD_PORT_DISABLED_CB_ID :
         hhcd->PortDisabledCallback = pCallback;
         break;
 
       case HAL_HCD_MSPINIT_CB_ID :
         hhcd->MspInitCallback = pCallback;
         break;
 
       case HAL_HCD_MSPDEINIT_CB_ID :
         hhcd->MspDeInitCallback = pCallback;
         break;
 
       default :
         /* Update the error code */
         hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
         /* Return error status */
         status =  HAL_ERROR;
         break;
     }
   }
   else if (hhcd->State == HAL_HCD_STATE_RESET)
   {
     switch (CallbackID)
     {
       case HAL_HCD_MSPINIT_CB_ID :
         hhcd->MspInitCallback = pCallback;
         break;
 
       case HAL_HCD_MSPDEINIT_CB_ID :
         hhcd->MspDeInitCallback = pCallback;
         break;
 
       default :
         /* Update the error code */
         hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
         /* Return error status */
         status =  HAL_ERROR;
         break;
     }
   }
   else
   {
     /* Update the error code */
     hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
     /* Return error status */
     status =  HAL_ERROR;
   }
 
   /* Release Lock */
   __HAL_UNLOCK(hhcd);
   return status;
 }
 
 /**
   * @brief  Unregister an USB HCD Callback
   *         USB HCD callback is redirected to the weak predefined callback
   * @param  hhcd USB HCD handle
   * @param  CallbackID ID of the callback to be unregistered
   *         This parameter can be one of the following values:
   *          @arg @ref HAL_HCD_SOF_CB_ID USB HCD SOF callback ID
   *          @arg @ref HAL_HCD_CONNECT_CB_ID USB HCD Connect callback ID
   *          @arg @ref HAL_HCD_DISCONNECT_CB_ID OTG HCD Disconnect callback ID
   *          @arg @ref HAL_HCD_PORT_ENABLED_CB_ID USB HCD Port Enabled callback ID
   *          @arg @ref HAL_HCD_PORT_DISABLED_CB_ID USB HCD Port Disabled callback ID
   *          @arg @ref HAL_HCD_MSPINIT_CB_ID MspDeInit callback ID
   *          @arg @ref HAL_HCD_MSPDEINIT_CB_ID MspDeInit callback ID
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_UnRegisterCallback(HCD_HandleTypeDef *hhcd, HAL_HCD_CallbackIDTypeDef CallbackID)
 {
   HAL_StatusTypeDef status = HAL_OK;
 
   /* Process locked */
   __HAL_LOCK(hhcd);
 
   /* Setup Legacy weak Callbacks  */
   if (hhcd->State == HAL_HCD_STATE_READY)
   {
     switch (CallbackID)
     {
       case HAL_HCD_SOF_CB_ID :
         hhcd->SOFCallback = HAL_HCD_SOF_Callback;
         break;
 
       case HAL_HCD_CONNECT_CB_ID :
         hhcd->ConnectCallback = HAL_HCD_Connect_Callback;
         break;
 
       case HAL_HCD_DISCONNECT_CB_ID :
         hhcd->DisconnectCallback = HAL_HCD_Disconnect_Callback;
         break;
 
       case HAL_HCD_PORT_ENABLED_CB_ID :
         hhcd->PortEnabledCallback = HAL_HCD_PortEnabled_Callback;
         break;
 
       case HAL_HCD_PORT_DISABLED_CB_ID :
         hhcd->PortDisabledCallback = HAL_HCD_PortDisabled_Callback;
         break;
 
       case HAL_HCD_MSPINIT_CB_ID :
         hhcd->MspInitCallback = HAL_HCD_MspInit;
         break;
 
       case HAL_HCD_MSPDEINIT_CB_ID :
         hhcd->MspDeInitCallback = HAL_HCD_MspDeInit;
         break;
 
       default :
         /* Update the error code */
         hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
 
         /* Return error status */
         status =  HAL_ERROR;
         break;
     }
   }
   else if (hhcd->State == HAL_HCD_STATE_RESET)
   {
     switch (CallbackID)
     {
       case HAL_HCD_MSPINIT_CB_ID :
         hhcd->MspInitCallback = HAL_HCD_MspInit;
         break;
 
       case HAL_HCD_MSPDEINIT_CB_ID :
         hhcd->MspDeInitCallback = HAL_HCD_MspDeInit;
         break;
 
       default :
         /* Update the error code */
         hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
 
         /* Return error status */
         status =  HAL_ERROR;
         break;
     }
   }
   else
   {
     /* Update the error code */
     hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
 
     /* Return error status */
     status =  HAL_ERROR;
   }
 
   /* Release Lock */
   __HAL_UNLOCK(hhcd);
   return status;
 }
 
 /**
   * @brief  Register USB HCD Host Channel Notify URB Change Callback
   *         To be used instead of the weak HAL_HCD_HC_NotifyURBChange_Callback() predefined callback
   * @param  hhcd HCD handle
   * @param  pCallback pointer to the USB HCD Host Channel Notify URB Change Callback function
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_RegisterHC_NotifyURBChangeCallback(HCD_HandleTypeDef *hhcd,
                                                              pHCD_HC_NotifyURBChangeCallbackTypeDef pCallback)
 {
   HAL_StatusTypeDef status = HAL_OK;
 
   if (pCallback == NULL)
   {
     /* Update the error code */
     hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
 
     return HAL_ERROR;
   }
 
   /* Process locked */
   __HAL_LOCK(hhcd);
 
   if (hhcd->State == HAL_HCD_STATE_READY)
   {
     hhcd->HC_NotifyURBChangeCallback = pCallback;
   }
   else
   {
     /* Update the error code */
     hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
 
     /* Return error status */
     status =  HAL_ERROR;
   }
 
   /* Release Lock */
   __HAL_UNLOCK(hhcd);
 
   return status;
 }
 
 /**
   * @brief  Unregister the USB HCD Host Channel Notify URB Change Callback
   *         USB HCD Host Channel Notify URB Change Callback is redirected
   *         to the weak HAL_HCD_HC_NotifyURBChange_Callback() predefined callback
   * @param  hhcd HCD handle
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_UnRegisterHC_NotifyURBChangeCallback(HCD_HandleTypeDef *hhcd)
 {
   HAL_StatusTypeDef status = HAL_OK;
 
   /* Process locked */
   __HAL_LOCK(hhcd);
 
   if (hhcd->State == HAL_HCD_STATE_READY)
   {
     hhcd->HC_NotifyURBChangeCallback = HAL_HCD_HC_NotifyURBChange_Callback; /* Legacy weak DataOutStageCallback  */
   }
   else
   {
     /* Update the error code */
     hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK;
 
     /* Return error status */
     status =  HAL_ERROR;
   }
 
   /* Release Lock */
   __HAL_UNLOCK(hhcd);
 
   return status;
 }
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
 
 /**
   * @}
   */
 
 /** @defgroup HCD_Exported_Functions_Group3 Peripheral Control functions
   * @ingroup RTEMSBSPsARMSTM32H7
   *  @brief   Management functions
   *
 @verbatim
  ===============================================================================
                       ##### Peripheral Control functions #####
  ===============================================================================
     [..]
     This subsection provides a set of functions allowing to control the HCD data
     transfers.
 
 @endverbatim
   * @{
   */
 
 /**
   * @brief  Start the host driver.
   * @param  hhcd HCD handle
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_Start(HCD_HandleTypeDef *hhcd)
 {
   __HAL_LOCK(hhcd);
   /* Enable port power */
   (void)USB_DriveVbus(hhcd->Instance, 1U);
 
   /* Enable global interrupt */
   __HAL_HCD_ENABLE(hhcd);
   __HAL_UNLOCK(hhcd);
 
   return HAL_OK;
 }
 
 /**
   * @brief  Stop the host driver.
   * @param  hhcd HCD handle
   * @retval HAL status
   */
 
 HAL_StatusTypeDef HAL_HCD_Stop(HCD_HandleTypeDef *hhcd)
 {
   __HAL_LOCK(hhcd);
   (void)USB_StopHost(hhcd->Instance);
   __HAL_UNLOCK(hhcd);
 
   return HAL_OK;
 }
 
 /**
   * @brief  Reset the host port.
   * @param  hhcd HCD handle
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_ResetPort(HCD_HandleTypeDef *hhcd)
 {
   return (USB_ResetPort(hhcd->Instance));
 }
 
 /**
   * @}
   */
 
 /** @defgroup HCD_Exported_Functions_Group4 Peripheral State functions
   * @ingroup RTEMSBSPsARMSTM32H7
   *  @brief   Peripheral State functions
   *
 @verbatim
  ===============================================================================
                       ##### Peripheral State functions #####
  ===============================================================================
     [..]
     This subsection permits to get in run-time the status of the peripheral
     and the data flow.
 
 @endverbatim
   * @{
   */
 
 /**
   * @brief  Return the HCD handle state.
   * @param  hhcd HCD handle
   * @retval HAL state
   */
 HCD_StateTypeDef HAL_HCD_GetState(HCD_HandleTypeDef const *hhcd)
 {
   return hhcd->State;
 }
 
 /**
   * @brief  Return  URB state for a channel.
   * @param  hhcd HCD handle
   * @param  chnum Channel number.
   *         This parameter can be a value from 1 to 15
   * @retval URB state.
   *          This parameter can be one of these values:
   *            URB_IDLE/
   *            URB_DONE/
   *            URB_NOTREADY/
   *            URB_NYET/
   *            URB_ERROR/
   *            URB_STALL
   */
 HCD_URBStateTypeDef HAL_HCD_HC_GetURBState(HCD_HandleTypeDef const *hhcd, uint8_t chnum)
 {
   return hhcd->hc[chnum].urb_state;
 }
 
 
 /**
   * @brief  Return the last host transfer size.
   * @param  hhcd HCD handle
   * @param  chnum Channel number.
   *         This parameter can be a value from 1 to 15
   * @retval last transfer size in byte
   */
 uint32_t HAL_HCD_HC_GetXferCount(HCD_HandleTypeDef const *hhcd, uint8_t chnum)
 {
   return hhcd->hc[chnum].xfer_count;
 }
 
 /**
   * @brief  Return the Host Channel state.
   * @param  hhcd HCD handle
   * @param  chnum Channel number.
   *         This parameter can be a value from 1 to 15
   * @retval Host channel state
   *          This parameter can be one of these values:
   *            HC_IDLE/
   *            HC_XFRC/
   *            HC_HALTED/
   *            HC_NYET/
   *            HC_NAK/
   *            HC_STALL/
   *            HC_XACTERR/
   *            HC_BBLERR/
   *            HC_DATATGLERR
   */
 HCD_HCStateTypeDef  HAL_HCD_HC_GetState(HCD_HandleTypeDef const *hhcd, uint8_t chnum)
 {
   return hhcd->hc[chnum].state;
 }
 
 /**
   * @brief  Return the current Host frame number.
   * @param  hhcd HCD handle
   * @retval Current Host frame number
   */
 uint32_t HAL_HCD_GetCurrentFrame(HCD_HandleTypeDef *hhcd)
 {
   return (USB_GetCurrentFrame(hhcd->Instance));
 }
 
 /**
   * @brief  Return the Host enumeration speed.
   * @param  hhcd HCD handle
   * @retval Enumeration speed
   */
 uint32_t HAL_HCD_GetCurrentSpeed(HCD_HandleTypeDef *hhcd)
 {
   return (USB_GetHostSpeed(hhcd->Instance));
 }
 
 /**
   * @brief  Set host channel Hub information.
   * @param  hhcd HCD handle
   * @param  ch_num Channel number.
   *         This parameter can be a value from 1 to 15
   * @param  addr Hub address
   * @param  PortNbr Hub port number
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_HC_SetHubInfo(HCD_HandleTypeDef *hhcd, uint8_t ch_num,
                                         uint8_t addr, uint8_t PortNbr)
 {
   uint32_t HostCoreSpeed = USB_GetHostSpeed(hhcd->Instance);
 
   /* LS/FS device plugged to HS HUB */
   if ((hhcd->hc[ch_num].speed != HCD_DEVICE_SPEED_HIGH) && (HostCoreSpeed == HPRT0_PRTSPD_HIGH_SPEED))
   {
     hhcd->hc[ch_num].do_ssplit = 1U;
 
     if ((hhcd->hc[ch_num].ep_type == EP_TYPE_CTRL) && (hhcd->hc[ch_num].ep_is_in != 0U))
     {
       hhcd->hc[ch_num].toggle_in = 1U;
     }
   }
 
   hhcd->hc[ch_num].hub_addr = addr;
   hhcd->hc[ch_num].hub_port_nbr = PortNbr;
 
   return HAL_OK;
 }
 
 
 /**
   * @brief  Clear host channel hub information.
   * @param  hhcd HCD handle
   * @param  ch_num Channel number.
   *         This parameter can be a value from 1 to 15
   * @retval HAL status
   */
 HAL_StatusTypeDef HAL_HCD_HC_ClearHubInfo(HCD_HandleTypeDef *hhcd, uint8_t ch_num)
 {
   hhcd->hc[ch_num].do_ssplit = 0U;
   hhcd->hc[ch_num].do_csplit = 0U;
   hhcd->hc[ch_num].hub_addr = 0U;
   hhcd->hc[ch_num].hub_port_nbr = 0U;
 
   return HAL_OK;
 }
 /**
   * @}
   */
 
 /**
   * @}
   */
 
 /** @addtogroup HCD_Private_Functions
   * @{
   */
 /**
   * @brief  Handle Host Channel IN interrupt requests.
   * @param  hhcd HCD handle
   * @param  chnum Channel number.
   *         This parameter can be a value from 1 to 15
   * @retval none
   */
 static void HCD_HC_IN_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum)
 {
   const USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
   uint32_t USBx_BASE = (uint32_t)USBx;
   uint32_t tmpreg;
 
   if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_AHBERR))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR);
     hhcd->hc[chnum].state = HC_XACTERR;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_BBERR))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_BBERR);
     hhcd->hc[chnum].state = HC_BBLERR;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_STALL))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL);
     hhcd->hc[chnum].state = HC_STALL;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_DTERR))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR);
     hhcd->hc[chnum].state = HC_DATATGLERR;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_TXERR))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_TXERR);
     hhcd->hc[chnum].state = HC_XACTERR;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else
   {
     /* ... */
   }
 
   if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_FRMOR))
   {
     (void)USB_HC_Halt(hhcd->Instance, chnum);
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_XFRC))
   {
     /* Clear any pending ACK IT */
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK);
 
     if (hhcd->hc[chnum].do_csplit == 1U)
     {
       hhcd->hc[chnum].do_csplit = 0U;
       __HAL_HCD_CLEAR_HC_CSPLT(chnum);
     }
 
     if (hhcd->Init.dma_enable != 0U)
     {
       hhcd->hc[chnum].xfer_count = hhcd->hc[chnum].XferSize - (USBx_HC(chnum)->HCTSIZ & USB_OTG_HCTSIZ_XFRSIZ);
     }
 
     hhcd->hc[chnum].state = HC_XFRC;
     hhcd->hc[chnum].ErrCnt = 0U;
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC);
 
     if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) ||
         (hhcd->hc[chnum].ep_type == EP_TYPE_BULK))
     {
       (void)USB_HC_Halt(hhcd->Instance, chnum);
       __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);
     }
     else if ((hhcd->hc[chnum].ep_type == EP_TYPE_INTR) ||
              (hhcd->hc[chnum].ep_type == EP_TYPE_ISOC))
     {
       USBx_HC(chnum)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM;
       hhcd->hc[chnum].urb_state = URB_DONE;
 
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
       hhcd->HC_NotifyURBChangeCallback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #else
       HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
     }
     else
     {
       /* ... */
     }
 
     if (hhcd->Init.dma_enable == 1U)
     {
       if ((((hhcd->hc[chnum].xfer_count + hhcd->hc[chnum].max_packet - 1U) / hhcd->hc[chnum].max_packet) & 1U) != 0U)
       {
         hhcd->hc[chnum].toggle_in ^= 1U;
       }
     }
     else
     {
       hhcd->hc[chnum].toggle_in ^= 1U;
     }
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_ACK))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK);
 
     if (hhcd->hc[chnum].do_ssplit == 1U)
     {
       hhcd->hc[chnum].do_csplit = 1U;
       hhcd->hc[chnum].state = HC_ACK;
 
       (void)USB_HC_Halt(hhcd->Instance, chnum);
     }
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_CHH))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_CHH);
 
     if (hhcd->hc[chnum].state == HC_XFRC)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].urb_state = URB_DONE;
     }
     else if (hhcd->hc[chnum].state == HC_STALL)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].urb_state = URB_STALL;
     }
     else if ((hhcd->hc[chnum].state == HC_XACTERR) ||
              (hhcd->hc[chnum].state == HC_DATATGLERR))
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].ErrCnt++;
       if (hhcd->hc[chnum].ErrCnt > 2U)
       {
         hhcd->hc[chnum].ErrCnt = 0U;
 
         if (hhcd->hc[chnum].do_ssplit == 1U)
         {
           hhcd->hc[chnum].do_csplit = 0U;
           hhcd->hc[chnum].ep_ss_schedule = 0U;
           __HAL_HCD_CLEAR_HC_CSPLT(chnum);
         }
 
         hhcd->hc[chnum].urb_state = URB_ERROR;
       }
       else
       {
         hhcd->hc[chnum].urb_state = URB_NOTREADY;
 
         if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) ||
             (hhcd->hc[chnum].ep_type == EP_TYPE_BULK))
         {
           /* re-activate the channel */
           tmpreg = USBx_HC(chnum)->HCCHAR;
           tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
           tmpreg |= USB_OTG_HCCHAR_CHENA;
           USBx_HC(chnum)->HCCHAR = tmpreg;
         }
       }
     }
     else if (hhcd->hc[chnum].state == HC_NYET)
     {
       hhcd->hc[chnum].state = HC_HALTED;
 
       if (hhcd->hc[chnum].do_csplit == 1U)
       {
         if (hhcd->hc[chnum].ep_type == EP_TYPE_INTR)
         {
           hhcd->hc[chnum].NyetErrCnt++;
           if (hhcd->hc[chnum].NyetErrCnt > 2U)
           {
             hhcd->hc[chnum].NyetErrCnt = 0U;
             hhcd->hc[chnum].do_csplit = 0U;
 
             if (hhcd->hc[chnum].ErrCnt < 3U)
             {
               hhcd->hc[chnum].ep_ss_schedule = 1U;
             }
             __HAL_HCD_CLEAR_HC_CSPLT(chnum);
             hhcd->hc[chnum].urb_state = URB_ERROR;
           }
           else
           {
             hhcd->hc[chnum].urb_state = URB_NOTREADY;
           }
         }
         else
         {
           hhcd->hc[chnum].urb_state = URB_NOTREADY;
         }
 
         if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) ||
             (hhcd->hc[chnum].ep_type == EP_TYPE_BULK))
         {
           /* re-activate the channel */
           tmpreg = USBx_HC(chnum)->HCCHAR;
           tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
           tmpreg |= USB_OTG_HCCHAR_CHENA;
           USBx_HC(chnum)->HCCHAR = tmpreg;
         }
       }
     }
     else if (hhcd->hc[chnum].state == HC_ACK)
     {
       hhcd->hc[chnum].state = HC_HALTED;
 
       if (hhcd->hc[chnum].do_csplit == 1U)
       {
         hhcd->hc[chnum].urb_state = URB_NOTREADY;
 
         /* Set Complete split and re-activate the channel */
         USBx_HC(chnum)->HCSPLT |= USB_OTG_HCSPLT_COMPLSPLT;
         USBx_HC(chnum)->HCINTMSK |= USB_OTG_HCINTMSK_NYET;
         USBx_HC(chnum)->HCINTMSK &= ~USB_OTG_HCINT_ACK;
 
         if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) ||
             (hhcd->hc[chnum].ep_type == EP_TYPE_BULK))
         {
           /* re-activate the channel */
           tmpreg = USBx_HC(chnum)->HCCHAR;
           tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
           tmpreg |= USB_OTG_HCCHAR_CHENA;
           USBx_HC(chnum)->HCCHAR = tmpreg;
         }
       }
     }
     else if (hhcd->hc[chnum].state == HC_NAK)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].urb_state = URB_NOTREADY;
 
       if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) ||
           (hhcd->hc[chnum].ep_type == EP_TYPE_BULK))
       {
         /* re-activate the channel */
         tmpreg = USBx_HC(chnum)->HCCHAR;
         tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
         tmpreg |= USB_OTG_HCCHAR_CHENA;
         USBx_HC(chnum)->HCCHAR = tmpreg;
       }
     }
     else if (hhcd->hc[chnum].state == HC_BBLERR)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].ErrCnt++;
       hhcd->hc[chnum].urb_state = URB_ERROR;
     }
     else
     {
       if (hhcd->hc[chnum].state == HC_HALTED)
       {
         return;
       }
     }
 
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
     hhcd->HC_NotifyURBChangeCallback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #else
     HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NYET))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NYET);
     hhcd->hc[chnum].state = HC_NYET;
 
     if (hhcd->hc[chnum].do_ssplit == 0U)
     {
       hhcd->hc[chnum].ErrCnt = 0U;
     }
 
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NAK))
   {
     if (hhcd->hc[chnum].ep_type == EP_TYPE_INTR)
     {
       hhcd->hc[chnum].ErrCnt = 0U;
       hhcd->hc[chnum].state = HC_NAK;
       (void)USB_HC_Halt(hhcd->Instance, chnum);
     }
     else if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) ||
              (hhcd->hc[chnum].ep_type == EP_TYPE_BULK))
     {
       hhcd->hc[chnum].ErrCnt = 0U;
 
       if ((hhcd->Init.dma_enable == 0U) || (hhcd->hc[chnum].do_csplit == 1U))
       {
         hhcd->hc[chnum].state = HC_NAK;
         (void)USB_HC_Halt(hhcd->Instance, chnum);
       }
     }
     else
     {
       /* ... */
     }
 
     if (hhcd->hc[chnum].do_csplit == 1U)
     {
       hhcd->hc[chnum].do_csplit = 0U;
       __HAL_HCD_CLEAR_HC_CSPLT(chnum);
       __HAL_HCD_UNMASK_ACK_HC_INT(chnum);
     }
 
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);
   }
   else
   {
     /* ... */
   }
 }
 
 /**
   * @brief  Handle Host Channel OUT interrupt requests.
   * @param  hhcd HCD handle
   * @param  chnum Channel number.
   *         This parameter can be a value from 1 to 15
   * @retval none
   */
 static void HCD_HC_OUT_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum)
 {
   const USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
   uint32_t USBx_BASE = (uint32_t)USBx;
   uint32_t tmpreg;
   uint32_t num_packets;
 
   if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_AHBERR))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR);
     hhcd->hc[chnum].state = HC_XACTERR;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_ACK))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK);
 
     if (hhcd->hc[chnum].do_ping == 1U)
     {
       hhcd->hc[chnum].do_ping = 0U;
       hhcd->hc[chnum].urb_state = URB_NOTREADY;
       hhcd->hc[chnum].state = HC_ACK;
       (void)USB_HC_Halt(hhcd->Instance, chnum);
     }
 
     if ((hhcd->hc[chnum].do_ssplit == 1U) && (hhcd->hc[chnum].do_csplit == 0U))
     {
       if (hhcd->hc[chnum].ep_type != EP_TYPE_ISOC)
       {
         hhcd->hc[chnum].do_csplit = 1U;
       }
 
       hhcd->hc[chnum].state = HC_ACK;
       (void)USB_HC_Halt(hhcd->Instance, chnum);
 
       /* reset error_count */
       hhcd->hc[chnum].ErrCnt = 0U;
     }
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_FRMOR))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR);
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_XFRC))
   {
     hhcd->hc[chnum].ErrCnt = 0U;
 
     /* transaction completed with NYET state, update do ping state */
     if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NYET))
     {
       hhcd->hc[chnum].do_ping = 1U;
       __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NYET);
     }
 
     if (hhcd->hc[chnum].do_csplit != 0U)
     {
       hhcd->hc[chnum].do_csplit = 0U;
       __HAL_HCD_CLEAR_HC_CSPLT(chnum);
     }
 
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC);
     hhcd->hc[chnum].state = HC_XFRC;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NYET))
   {
     hhcd->hc[chnum].state = HC_NYET;
 
     if (hhcd->hc[chnum].do_ssplit == 0U)
     {
       hhcd->hc[chnum].do_ping = 1U;
     }
 
     hhcd->hc[chnum].ErrCnt = 0U;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NYET);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_STALL))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL);
     hhcd->hc[chnum].state = HC_STALL;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NAK))
   {
     hhcd->hc[chnum].ErrCnt = 0U;
     hhcd->hc[chnum].state = HC_NAK;
 
     if (hhcd->hc[chnum].do_ping == 0U)
     {
       if (hhcd->hc[chnum].speed == HCD_DEVICE_SPEED_HIGH)
       {
         hhcd->hc[chnum].do_ping = 1U;
       }
     }
 
     (void)USB_HC_Halt(hhcd->Instance, chnum);
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_TXERR))
   {
     if (hhcd->Init.dma_enable == 0U)
     {
       hhcd->hc[chnum].state = HC_XACTERR;
       (void)USB_HC_Halt(hhcd->Instance, chnum);
     }
     else
     {
       hhcd->hc[chnum].ErrCnt++;
       if (hhcd->hc[chnum].ErrCnt > 2U)
       {
         hhcd->hc[chnum].ErrCnt = 0U;
         hhcd->hc[chnum].urb_state = URB_ERROR;
 
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
         hhcd->HC_NotifyURBChangeCallback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #else
         HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
       }
       else
       {
         hhcd->hc[chnum].urb_state = URB_NOTREADY;
       }
     }
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_TXERR);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_DTERR))
   {
     hhcd->hc[chnum].state = HC_DATATGLERR;
     (void)USB_HC_Halt(hhcd->Instance, chnum);
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR);
   }
   else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_CHH))
   {
     __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_CHH);
 
     if (hhcd->hc[chnum].state == HC_XFRC)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].urb_state = URB_DONE;
 
       if ((hhcd->hc[chnum].ep_type == EP_TYPE_BULK) ||
           (hhcd->hc[chnum].ep_type == EP_TYPE_INTR))
       {
         if (hhcd->Init.dma_enable == 0U)
         {
           hhcd->hc[chnum].toggle_out ^= 1U;
         }
 
         if ((hhcd->Init.dma_enable == 1U) && (hhcd->hc[chnum].xfer_len > 0U))
         {
           num_packets = (hhcd->hc[chnum].xfer_len + hhcd->hc[chnum].max_packet - 1U) / hhcd->hc[chnum].max_packet;
 
           if ((num_packets & 1U) != 0U)
           {
             hhcd->hc[chnum].toggle_out ^= 1U;
           }
         }
       }
     }
     else if (hhcd->hc[chnum].state == HC_ACK)
     {
       hhcd->hc[chnum].state = HC_HALTED;
 
       if (hhcd->hc[chnum].do_csplit == 1U)
       {
         hhcd->hc[chnum].urb_state = URB_NOTREADY;
       }
     }
     else if (hhcd->hc[chnum].state == HC_NAK)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].urb_state = URB_NOTREADY;
 
       if (hhcd->hc[chnum].do_csplit == 1U)
       {
         hhcd->hc[chnum].do_csplit = 0U;
         __HAL_HCD_CLEAR_HC_CSPLT(chnum);
       }
     }
     else if (hhcd->hc[chnum].state == HC_NYET)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].urb_state  = URB_NOTREADY;
     }
     else if (hhcd->hc[chnum].state == HC_STALL)
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].urb_state  = URB_STALL;
     }
     else if ((hhcd->hc[chnum].state == HC_XACTERR) ||
              (hhcd->hc[chnum].state == HC_DATATGLERR))
     {
       hhcd->hc[chnum].state = HC_HALTED;
       hhcd->hc[chnum].ErrCnt++;
       if (hhcd->hc[chnum].ErrCnt > 2U)
       {
         hhcd->hc[chnum].ErrCnt = 0U;
         hhcd->hc[chnum].urb_state = URB_ERROR;
       }
       else
       {
         hhcd->hc[chnum].urb_state = URB_NOTREADY;
 
         /* re-activate the channel  */
         tmpreg = USBx_HC(chnum)->HCCHAR;
         tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
         tmpreg |= USB_OTG_HCCHAR_CHENA;
         USBx_HC(chnum)->HCCHAR = tmpreg;
       }
     }
     else
     {
       return;
     }
 
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
     hhcd->HC_NotifyURBChangeCallback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #else
     HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
   }
   else
   {
     return;
   }
 }
 
 /**
   * @brief  Handle Rx Queue Level interrupt requests.
   * @param  hhcd HCD handle
   * @retval none
   */
 static void HCD_RXQLVL_IRQHandler(HCD_HandleTypeDef *hhcd)
 {
   const USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
   uint32_t USBx_BASE = (uint32_t)USBx;
   uint32_t pktsts;
   uint32_t pktcnt;
   uint32_t GrxstspReg;
   uint32_t xferSizePktCnt;
   uint32_t tmpreg;
   uint32_t chnum;
 
   GrxstspReg = hhcd->Instance->GRXSTSP;
   chnum = GrxstspReg & USB_OTG_GRXSTSP_EPNUM;
   pktsts = (GrxstspReg & USB_OTG_GRXSTSP_PKTSTS) >> 17;
   pktcnt = (GrxstspReg & USB_OTG_GRXSTSP_BCNT) >> 4;
 
   switch (pktsts)
   {
     case GRXSTS_PKTSTS_IN:
       /* Read the data into the host buffer. */
       if ((pktcnt > 0U) && (hhcd->hc[chnum].xfer_buff != (void *)0))
       {
         if ((hhcd->hc[chnum].xfer_count + pktcnt) <= hhcd->hc[chnum].xfer_len)
         {
           (void)USB_ReadPacket(hhcd->Instance,
                                hhcd->hc[chnum].xfer_buff, (uint16_t)pktcnt);
 
           /* manage multiple Xfer */
           hhcd->hc[chnum].xfer_buff += pktcnt;
           hhcd->hc[chnum].xfer_count += pktcnt;
 
           /* get transfer size packet count */
           xferSizePktCnt = (USBx_HC(chnum)->HCTSIZ & USB_OTG_HCTSIZ_PKTCNT) >> 19;
 
           if ((hhcd->hc[chnum].max_packet == pktcnt) && (xferSizePktCnt > 0U))
           {
             /* re-activate the channel when more packets are expected */
             tmpreg = USBx_HC(chnum)->HCCHAR;
             tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
             tmpreg |= USB_OTG_HCCHAR_CHENA;
             USBx_HC(chnum)->HCCHAR = tmpreg;
             hhcd->hc[chnum].toggle_in ^= 1U;
           }
         }
         else
         {
           hhcd->hc[chnum].urb_state = URB_ERROR;
         }
       }
       break;
 
     case GRXSTS_PKTSTS_DATA_TOGGLE_ERR:
       break;
 
     case GRXSTS_PKTSTS_IN_XFER_COMP:
     case GRXSTS_PKTSTS_CH_HALTED:
     default:
       break;
   }
 }
 
 /**
   * @brief  Handle Host Port interrupt requests.
   * @param  hhcd HCD handle
   * @retval None
   */
 static void HCD_Port_IRQHandler(HCD_HandleTypeDef *hhcd)
 {
   const USB_OTG_GlobalTypeDef *USBx = hhcd->Instance;
   uint32_t USBx_BASE = (uint32_t)USBx;
   __IO uint32_t hprt0;
   __IO uint32_t hprt0_dup;
 
   /* Handle Host Port Interrupts */
   hprt0 = USBx_HPRT0;
   hprt0_dup = USBx_HPRT0;
 
   hprt0_dup &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET | \
                  USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG);
 
   /* Check whether Port Connect detected */
   if ((hprt0 & USB_OTG_HPRT_PCDET) == USB_OTG_HPRT_PCDET)
   {
     if ((hprt0 & USB_OTG_HPRT_PCSTS) == USB_OTG_HPRT_PCSTS)
     {
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
       hhcd->ConnectCallback(hhcd);
 #else
       HAL_HCD_Connect_Callback(hhcd);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
     }
     hprt0_dup |= USB_OTG_HPRT_PCDET;
   }
 
   /* Check whether Port Enable Changed */
   if ((hprt0 & USB_OTG_HPRT_PENCHNG) == USB_OTG_HPRT_PENCHNG)
   {
     hprt0_dup |= USB_OTG_HPRT_PENCHNG;
 
     if ((hprt0 & USB_OTG_HPRT_PENA) == USB_OTG_HPRT_PENA)
     {
       if (hhcd->Init.phy_itface == USB_OTG_EMBEDDED_PHY)
       {
         if ((hprt0 & USB_OTG_HPRT_PSPD) == (HPRT0_PRTSPD_LOW_SPEED << 17))
         {
           (void)USB_InitFSLSPClkSel(hhcd->Instance, HCFG_6_MHZ);
         }
         else
         {
           (void)USB_InitFSLSPClkSel(hhcd->Instance, HCFG_48_MHZ);
         }
       }
       else
       {
         if (hhcd->Init.speed == HCD_SPEED_FULL)
         {
           USBx_HOST->HFIR = HFIR_60_MHZ;
         }
       }
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
       hhcd->PortEnabledCallback(hhcd);
 #else
       HAL_HCD_PortEnabled_Callback(hhcd);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
 
     }
     else
     {
 #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U)
       hhcd->PortDisabledCallback(hhcd);
 #else
       HAL_HCD_PortDisabled_Callback(hhcd);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
     }
   }
 
   /* Check for an overcurrent */
   if ((hprt0 & USB_OTG_HPRT_POCCHNG) == USB_OTG_HPRT_POCCHNG)
   {
     hprt0_dup |= USB_OTG_HPRT_POCCHNG;
   }
 
   /* Clear Port Interrupts */
   USBx_HPRT0 = hprt0_dup;
 }
 
 /**
   * @}
   */
 
 /**
   * @}
   */
 
 #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
 #endif /* HAL_HCD_MODULE_ENABLED */
 
 /**
   * @}
   */
 
 /**
   * @}
   */

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