USB_CORE_Exported_Functions

Collaboration diagram for USB_CORE_Exported_Functions:

Functions
uint8_t	USBD_CDC_RegisterInterface (USBD_HandleTypeDef *pdev, USBD_CDC_ItfTypeDef *fops)
	USBD_CDC_RegisterInterface. More...
uint8_t	USBD_CDC_SetTxBuffer (USBD_HandleTypeDef *pdev, uint8_t *pbuff, uint16_t length)
	USBD_CDC_SetTxBuffer. More...
uint8_t	USBD_CDC_SetRxBuffer (USBD_HandleTypeDef *pdev, uint8_t *pbuff)
	USBD_CDC_SetRxBuffer. More...
uint8_t	USBD_CDC_ReceivePacket (USBD_HandleTypeDef *pdev)
	USBD_CDC_ReceivePacket prepare OUT Endpoint for reception. More...
uint8_t	USBD_CDC_TransmitPacket (USBD_HandleTypeDef *pdev)
	USBD_CDC_DataOut Data received on non-control Out endpoint. More...

Detailed Description

Function Documentation

USBD_CDC_RegisterInterface()

uint8_t USBD_CDC_RegisterInterface	(	USBD_HandleTypeDef *	pdev,
		USBD_CDC_ItfTypeDef *	fops
	)

USBD_CDC_RegisterInterface.

Parameters

pdev	device instance
fops	CD Interface callback

Return values

status

{
  uint8_t  ret = USBD_FAIL;
 
  if(fops != NULL)
  {
    pdev->pUserData= fops;
    ret = USBD_OK;
  }
 
  return ret;
}

Here is the caller graph for this function:

USBD_CDC_SetTxBuffer()

uint8_t USBD_CDC_SetTxBuffer	(	USBD_HandleTypeDef *	pdev,
		uint8_t *	pbuff,
		uint16_t	length
	)

USBD_CDC_SetTxBuffer.

Parameters

pdev	device instance
pbuff	Tx Buffer

Return values

status

{
  USBD_CDC_HandleTypeDef   *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData;
 
  hcdc->TxBuffer = pbuff;
  hcdc->TxLength = length;
 
  return USBD_OK;
}

Here is the caller graph for this function:

USBD_CDC_SetRxBuffer()

uint8_t USBD_CDC_SetRxBuffer	(	USBD_HandleTypeDef *	pdev,
		uint8_t *	pbuff
	)

USBD_CDC_SetRxBuffer.

Parameters

pdev	device instance
pbuff	Rx Buffer

Return values

status

{
  USBD_CDC_HandleTypeDef   *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData;
 
  hcdc->RxBuffer = pbuff;
 
  return USBD_OK;
}

Here is the caller graph for this function:

USBD_CDC_ReceivePacket()

uint8_t USBD_CDC_ReceivePacket

(

USBD_HandleTypeDef *

pdev

)

USBD_CDC_ReceivePacket prepare OUT Endpoint for reception.

Parameters

pdev	device instance

Return values

status

{
  USBD_CDC_HandleTypeDef   *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData;
 
  /* Suspend or Resume USB Out process */
  if(pdev->pClassData != NULL)
  {
    if(pdev->dev_speed == USBD_SPEED_HIGH  )
    {
      /* Prepare Out endpoint to receive next packet */
      USBD_LL_PrepareReceive(pdev,
                             CDC_OUT_EP,
                             hcdc->RxBuffer,
                             CDC_DATA_HS_OUT_PACKET_SIZE);
    }
    else
    {
      /* Prepare Out endpoint to receive next packet */
      USBD_LL_PrepareReceive(pdev,
                             CDC_OUT_EP,
                             hcdc->RxBuffer,
                             CDC_DATA_FS_OUT_PACKET_SIZE);
    }
    return USBD_OK;
  }
  else
  {
    return USBD_FAIL;
  }
}

Here is the call graph for this function:

Here is the caller graph for this function:

USBD_CDC_TransmitPacket()

uint8_t USBD_CDC_TransmitPacket

(

USBD_HandleTypeDef *

pdev

)

USBD_CDC_DataOut Data received on non-control Out endpoint.

Parameters

pdev	device instance
epnum	endpoint number

Return values

status

{
  USBD_CDC_HandleTypeDef   *hcdc = (USBD_CDC_HandleTypeDef*) pdev->pClassData;
 
  if(pdev->pClassData != NULL)
  {
    if(hcdc->TxState == 0)
    {
      /* Tx Transfer in progress */
      hcdc->TxState = 1;
 
      /* Transmit next packet */
      USBD_LL_Transmit(pdev,
                       CDC_IN_EP,
                       hcdc->TxBuffer,
                       hcdc->TxLength);
 
      return USBD_OK;
    }
    else
    {
      return USBD_BUSY;
    }
  }
  else
  {
    return USBD_FAIL;
  }
}

Here is the call graph for this function:

Here is the caller graph for this function: