Subversion Repositories LedShow

/* USER CODE BEGIN Header */

/**

  ******************************************************************************

  * @file           : usbd_conf.c

  * @version        : v2.0_Cube

  * @brief          : This file implements the board support package for the USB device library

  ******************************************************************************

  * @attention

  *

  * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.

  * All rights reserved.</center></h2>

  *

  * This software component is licensed by ST under Ultimate Liberty license

  * SLA0044, the "License"; You may not use this file except in compliance with

  * the License. You may obtain a copy of the License at:

  *                             www.st.com/SLA0044

  *

  ******************************************************************************

  */

/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/

#include "stm32f1xx.h"

#include "stm32f1xx_hal.h"

#include "usbd_def.h"

#include "usbd_core.h"

#include "usbd_cdc.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* Private variables ---------------------------------------------------------*/

/* USER CODE END PV */

PCD_HandleTypeDef hpcd_USB_FS;

void Error_Handler(void);

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/* USER CODE BEGIN PFP */

/* Private function prototypes -----------------------------------------------*/

/* USER CODE END PFP */

/* Private functions ---------------------------------------------------------*/

static USBD_StatusTypeDef USBD_Get_USB_Status(HAL_StatusTypeDef hal_status);

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state);

#else

void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state);

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

/*******************************************************************************

                       LL Driver Callbacks (PCD -> USB Device Library)

*******************************************************************************/

/* MSP Init */

void HAL_PCD_MspInit(PCD_HandleTypeDef* pcdHandle)

{

  if(pcdHandle->Instance==USB)

  {

  /* USER CODE BEGIN USB_MspInit 0 */

  /* USER CODE END USB_MspInit 0 */

    /* Peripheral clock enable */

    __HAL_RCC_USB_CLK_ENABLE();

    /* Peripheral interrupt init */

    HAL_NVIC_SetPriority(USB_HP_CAN1_TX_IRQn, 0, 0);

    HAL_NVIC_EnableIRQ(USB_HP_CAN1_TX_IRQn);

    HAL_NVIC_SetPriority(USB_LP_CAN1_RX0_IRQn, 0, 0);

    HAL_NVIC_EnableIRQ(USB_LP_CAN1_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();

    /* Peripheral interrupt Deinit*/

    HAL_NVIC_DisableIRQ(USB_HP_CAN1_TX_IRQn);

    HAL_NVIC_DisableIRQ(USB_LP_CAN1_RX0_IRQn);

  /* USER CODE BEGIN USB_MspDeInit 1 */

  /* USER CODE END USB_MspDeInit 1 */

  }

}

/**

  * @brief  Setup stage callback

  * @param  hpcd: PCD handle

  * @retval None

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)

#else

void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  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

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#else

void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  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

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#else

void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  USBD_LL_DataInStage((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);

}

/**

  * @brief  SOF callback.

  * @param  hpcd: PCD handle

  * @retval None

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_SOFCallback(PCD_HandleTypeDef *hpcd)

#else

void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  USBD_LL_SOF((USBD_HandleTypeDef*)hpcd->pData);

}

/**

  * @brief  Reset callback.

  * @param  hpcd: PCD handle

  * @retval None

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_ResetCallback(PCD_HandleTypeDef *hpcd)

#else

void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  USBD_SpeedTypeDef speed = USBD_SPEED_FULL;

  if ( hpcd->Init.speed != PCD_SPEED_FULL)

  {

    Error_Handler();

  }

    /* Set Speed. */

  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

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)

#else

void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  /* 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

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)

#else

void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  /* 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

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#else

void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  USBD_LL_IsoOUTIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);

}

/**

  * @brief  ISOINIncomplete callback.

  * @param  hpcd: PCD handle

  * @param  epnum: Endpoint number

  * @retval None

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#else

void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  USBD_LL_IsoINIncomplete((USBD_HandleTypeDef*)hpcd->pData, epnum);

}

/**

  * @brief  Connect callback.

  * @param  hpcd: PCD handle

  * @retval None

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)

#else

void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  USBD_LL_DevConnected((USBD_HandleTypeDef*)hpcd->pData);

}

/**

  * @brief  Disconnect callback.

  * @param  hpcd: PCD handle

  * @retval None

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)

#else

void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  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.low_power_enable = DISABLE;

  hpcd_USB_FS.Init.lpm_enable = DISABLE;

  hpcd_USB_FS.Init.battery_charging_enable = DISABLE;

  if (HAL_PCD_Init(&hpcd_USB_FS) != HAL_OK)

  {

    Error_Handler( );

  }

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

  /* Register USB PCD CallBacks */

  HAL_PCD_RegisterCallback(&hpcd_USB_FS, HAL_PCD_SOF_CB_ID, PCD_SOFCallback);

  HAL_PCD_RegisterCallback(&hpcd_USB_FS, HAL_PCD_SETUPSTAGE_CB_ID, PCD_SetupStageCallback);

  HAL_PCD_RegisterCallback(&hpcd_USB_FS, HAL_PCD_RESET_CB_ID, PCD_ResetCallback);

  HAL_PCD_RegisterCallback(&hpcd_USB_FS, HAL_PCD_SUSPEND_CB_ID, PCD_SuspendCallback);

  HAL_PCD_RegisterCallback(&hpcd_USB_FS, HAL_PCD_RESUME_CB_ID, PCD_ResumeCallback);

  HAL_PCD_RegisterCallback(&hpcd_USB_FS, HAL_PCD_CONNECT_CB_ID, PCD_ConnectCallback);

  HAL_PCD_RegisterCallback(&hpcd_USB_FS, HAL_PCD_DISCONNECT_CB_ID, PCD_DisconnectCallback);

  HAL_PCD_RegisterDataOutStageCallback(&hpcd_USB_FS, PCD_DataOutStageCallback);

  HAL_PCD_RegisterDataInStageCallback(&hpcd_USB_FS, PCD_DataInStageCallback);

  HAL_PCD_RegisterIsoOutIncpltCallback(&hpcd_USB_FS, PCD_ISOOUTIncompleteCallback);

  HAL_PCD_RegisterIsoInIncpltCallback(&hpcd_USB_FS, PCD_ISOINIncompleteCallback);

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

  /* USER CODE BEGIN EndPoint_Configuration */

  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x00 , PCD_SNG_BUF, 0x18);

  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x80 , PCD_SNG_BUF, 0x58);

  /* USER CODE END EndPoint_Configuration */

  /* USER CODE BEGIN EndPoint_Configuration_CDC */

  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x81 , PCD_SNG_BUF, 0xC0);

  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x01 , PCD_SNG_BUF, 0x110);

  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x82 , PCD_SNG_BUF, 0x100);

  /* USER CODE END EndPoint_Configuration_CDC */

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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  dev_addr: Device address

  * @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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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);

  usb_status =  USBD_Get_USB_Status(hal_status);

  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_CDC_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

  */

#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)

static void PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state)

#else

void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state)

#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */

{

  /* USER CODE BEGIN 6 */

  if (state == 1)

  {

    /* Configure Low connection state. */

  }

  else

  {

    /* Configure High connection state. */

  }

  /* USER CODE END 6 */

}

/**

  * @brief  Retuns the USB status depending on the HAL status:

  * @param  hal_status: HAL status

  * @retval USB status

  */

USBD_StatusTypeDef USBD_Get_USB_Status(HAL_StatusTypeDef hal_status)

{

  USBD_StatusTypeDef usb_status = USBD_OK;

  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;

}

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