stmbl/f3dfu/Src/usbd_conf.c

/**
  ******************************************************************************
  * @file           : usbd_conf.c
  * @version        : v1.0_Cube
  * @brief          : This file implements the board support package for the USB device library
  ******************************************************************************
  *
  * Copyright (c) 2017 STMicroelectronics International N.V. 
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without 
  * modification, are permitted, provided that the following conditions are met:
  *
  * 1. Redistribution 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 other 
  *    contributors to this software may be used to endorse or promote products 
  *    derived from this software without specific written permission.
  * 4. This software, including modifications and/or derivative works of this 
  *    software, must execute solely and exclusively on microcontroller or
  *    microprocessor devices manufactured by or for STMicroelectronics.
  * 5. Redistribution and use of this software other than as permitted under 
  *    this license is void and will automatically terminate your rights under 
  *    this license. 
  *
  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" 
  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT 
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT 
  * SHALL STMICROELECTRONICS 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.
  *
  ******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f3xx.h"
#include "stm32f3xx_hal.h"
#include "usbd_def.h"
#include "usbd_core.h"
#include "usbd_dfu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
PCD_HandleTypeDef hpcd_USB_FS;
void Error_Handler(void);

/* USER CODE BEGIN 0 */
/* USER CODE END 0 */

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state);

/*******************************************************************************
                       LL Driver Callbacks (PCD -> USB Device Library)
*******************************************************************************/
/* MSP Init */

void HAL_PCD_MspInit(PCD_HandleTypeDef *pcdHandle) {
  GPIO_InitTypeDef GPIO_InitStruct;
  if(pcdHandle->Instance == USB) {
    /* USER CODE BEGIN USB_MspInit 0 */

    /* USER CODE END USB_MspInit 0 */

    /**USB GPIO Configuration    
    PA11     ------> USB_DM
    PA12     ------> USB_DP 
    */
    GPIO_InitStruct.Pin       = GPIO_PIN_11 | GPIO_PIN_12;
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull      = GPIO_NOPULL;
    GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF14_USB;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Peripheral clock enable */
    __HAL_RCC_USB_CLK_ENABLE();

    /* Peripheral interrupt init */
    HAL_NVIC_SetPriority(USB_LP_CAN_RX0_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USB_LP_CAN_RX0_IRQn);
    /* USER CODE BEGIN USB_MspInit 1 */

    /* USER CODE END USB_MspInit 1 */
  }
}

void HAL_PCD_MspDeInit(PCD_HandleTypeDef *pcdHandle) {
  if(pcdHandle->Instance == USB) {
    /* USER CODE BEGIN USB_MspDeInit 0 */

    /* USER CODE END USB_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USB_CLK_DISABLE();

    /**USB GPIO Configuration    
    PA11     ------> USB_DM
    PA12     ------> USB_DP 
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11 | GPIO_PIN_12);

    /* Peripheral interrupt Deinit*/
    HAL_NVIC_DisableIRQ(USB_LP_CAN_RX0_IRQn);

    /* USER CODE BEGIN USB_MspDeInit 1 */

    /* USER CODE END USB_MspDeInit 1 */
  }
}

/**
  * @brief  Setup Stage callback
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd) {
  USBD_LL_SetupStage((USBD_HandleTypeDef *)hpcd->pData, (uint8_t *)hpcd->Setup);
}

/**
  * @brief  Data Out Stage callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
  USBD_LL_DataOutStage((USBD_HandleTypeDef *)hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
}

/**
  * @brief  Data In Stage callback..
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
  USBD_LL_DataInStage((USBD_HandleTypeDef *)hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
}

/**
  * @brief  SOF callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd) {
  USBD_LL_SOF((USBD_HandleTypeDef *)hpcd->pData);
}

/**
  * @brief  Reset callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd) {
  USBD_SpeedTypeDef speed = USBD_SPEED_FULL;

  /*Set USB Current Speed*/
  switch(hpcd->Init.speed) {
    case PCD_SPEED_FULL:
      speed = USBD_SPEED_FULL;
      break;

    default:
      speed = USBD_SPEED_FULL;
      break;
  }
  USBD_LL_SetSpeed((USBD_HandleTypeDef *)hpcd->pData, speed);

  /*Reset Device*/
  USBD_LL_Reset((USBD_HandleTypeDef *)hpcd->pData);
}

/**
  * @brief  Suspend callback.
  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd) {
  /* Inform USB library that core enters in suspend Mode */
  USBD_LL_Suspend((USBD_HandleTypeDef *)hpcd->pData);
  /*Enter in STOP mode */
  /* USER CODE BEGIN 2 */
  if(hpcd->Init.low_power_enable) {
    /* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register */
    SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
  }
  /* USER CODE END 2 */
}

/**
  * @brief  Resume callback.
  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd) {
  /* USER CODE BEGIN 3 */

  /* USER CODE END 3 */
  USBD_LL_Resume((USBD_HandleTypeDef *)hpcd->pData);
}

/**
  * @brief  ISOOUTIncomplete callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
  USBD_LL_IsoOUTIncomplete((USBD_HandleTypeDef *)hpcd->pData, epnum);
}

/**
  * @brief  ISOINIncomplete callback.
  * @param  hpcd: PCD handle
  * @param  epnum: Endpoint Number
  * @retval None
  */
void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum) {
  USBD_LL_IsoINIncomplete((USBD_HandleTypeDef *)hpcd->pData, epnum);
}

/**
  * @brief  ConnectCallback callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd) {
  USBD_LL_DevConnected((USBD_HandleTypeDef *)hpcd->pData);
}

/**
  * @brief  Disconnect callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd) {
  USBD_LL_DevDisconnected((USBD_HandleTypeDef *)hpcd->pData);
}

/*******************************************************************************
                       LL Driver Interface (USB Device Library --> PCD)
*******************************************************************************/
/**
  * @brief  Initializes the Low Level portion of the Device driver.
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_Init(USBD_HandleTypeDef *pdev) {
  /* Init USB_IP */
  /* Link The driver to the stack */
  hpcd_USB_FS.pData = pdev;
  pdev->pData       = &hpcd_USB_FS;

  hpcd_USB_FS.Instance                     = USB;
  hpcd_USB_FS.Init.dev_endpoints           = 8;
  hpcd_USB_FS.Init.speed                   = PCD_SPEED_FULL;
  hpcd_USB_FS.Init.ep0_mps                 = DEP0CTL_MPS_64;
  hpcd_USB_FS.Init.phy_itface              = PCD_PHY_EMBEDDED;
  hpcd_USB_FS.Init.low_power_enable        = DISABLE;
  hpcd_USB_FS.Init.battery_charging_enable = DISABLE;
  if(HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK) {
    Error_Handler();
  }

  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef *)pdev->pData, 0x00, PCD_SNG_BUF, 0x18);
  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef *)pdev->pData, 0x80, PCD_SNG_BUF, 0x58);
  return USBD_OK;
}

/**
  * @brief  De-Initializes the Low Level portion of the Device driver.
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_DeInit(USBD_HandleTypeDef *pdev) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_DeInit(pdev->pData);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Starts the Low Level portion of the Device driver. 
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_Start(USBD_HandleTypeDef *pdev) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_Start(pdev->pData);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Stops the Low Level portion of the Device driver.
  * @param  pdev: Device handle
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_Stop(USBD_HandleTypeDef *pdev) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_Stop(pdev->pData);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Opens an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  ep_type: Endpoint Type
  * @param  ep_mps: Endpoint Max Packet Size
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_OpenEP(USBD_HandleTypeDef *pdev,
                                  uint8_t ep_addr,
                                  uint8_t ep_type,
                                  uint16_t ep_mps) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Open(pdev->pData,
                               ep_addr,
                               ep_mps,
                               ep_type);


  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Closes an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_CloseEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Close(pdev->pData, ep_addr);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Flushes an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_FlushEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Flush(pdev->pData, ep_addr);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Sets a Stall condition on an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_StallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_SetStall(pdev->pData, ep_addr);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Clears a Stall condition on an endpoint of the Low Level Driver.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_ClearStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Returns Stall condition.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval Stall (1: Yes, 0: No)
  */
uint8_t USBD_LL_IsStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
  PCD_HandleTypeDef *hpcd = (PCD_HandleTypeDef *)pdev->pData;

  if((ep_addr & 0x80) == 0x80) {
    return hpcd->IN_ep[ep_addr & 0x7F].is_stall;
  } else {
    return hpcd->OUT_ep[ep_addr & 0x7F].is_stall;
  }
}
/**
  * @brief  Assigns a USB address to the device.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev, uint8_t dev_addr) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_SetAddress(pdev->pData, dev_addr);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Transmits data over an endpoint.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  pbuf: Pointer to data to be sent
  * @param  size: Data size    
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_Transmit(USBD_HandleTypeDef *pdev,
                                    uint8_t ep_addr,
                                    uint8_t *pbuf,
                                    uint16_t size) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Prepares an endpoint for reception.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @param  pbuf: Pointer to data to be received
  * @param  size: Data size
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev,
                                          uint8_t ep_addr,
                                          uint8_t *pbuf,
                                          uint16_t size) {
  HAL_StatusTypeDef hal_status  = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);

  switch(hal_status) {
    case HAL_OK:
      usb_status = USBD_OK;
      break;
    case HAL_ERROR:
      usb_status = USBD_FAIL;
      break;
    case HAL_BUSY:
      usb_status = USBD_BUSY;
      break;
    case HAL_TIMEOUT:
      usb_status = USBD_FAIL;
      break;
    default:
      usb_status = USBD_FAIL;
      break;
  }
  return usb_status;
}

/**
  * @brief  Returns the last transfered packet size.
  * @param  pdev: Device handle
  * @param  ep_addr: Endpoint Number
  * @retval Recived Data Size
  */
uint32_t USBD_LL_GetRxDataSize(USBD_HandleTypeDef *pdev, uint8_t ep_addr) {
  return HAL_PCD_EP_GetRxCount((PCD_HandleTypeDef *)pdev->pData, ep_addr);
}

/**
  * @brief  Delays routine for the USB Device Library.
  * @param  Delay: Delay in ms
  * @retval None
  */
void USBD_LL_Delay(uint32_t Delay) {
  HAL_Delay(Delay);
}

/**
  * @brief  static single allocation.
  * @param  size: size of allocated memory
  * @retval None
  */
void *USBD_static_malloc(uint32_t size) {
  static uint32_t mem[(sizeof(USBD_DFU_HandleTypeDef) / 4) + 1]; /* On 32-bit boundary */
  return mem;
}

/**
  * @brief  Dummy memory free
  * @param  *p pointer to allocated  memory address
  * @retval None
  */
void USBD_static_free(void *p) {
}

/**
* @brief Software Device Connection
* @param hpcd: PCD handle
* @param state: connection state (0 : disconnected / 1: connected) 
* @retval None
*/
void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state) {
  /* USER CODE BEGIN 4 */
  if(state == 1) {
    /* Configure Low Connection State */

  } else {
    /* Configure High Connection State */
  }
  /* USER CODE END 4 */
}

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