USBD_IOREQ_Exported_FunctionsPrototype

Collaboration diagram for USBD_IOREQ_Exported_FunctionsPrototype:

Functions
USBD_StatusTypeDef	USBD_CtlSendData (USBD_HandleTypeDef *pdev, uint8_t *buf, uint16_t len)
	USBD_CtlSendData send data on the ctl pipe. More...
USBD_StatusTypeDef	USBD_CtlContinueSendData (USBD_HandleTypeDef *pdev, uint8_t *pbuf, uint16_t len)
	USBD_CtlContinueSendData continue sending data on the ctl pipe. More...
USBD_StatusTypeDef	USBD_CtlPrepareRx (USBD_HandleTypeDef *pdev, uint8_t *pbuf, uint16_t len)
	USBD_CtlPrepareRx receive data on the ctl pipe. More...
USBD_StatusTypeDef	USBD_CtlContinueRx (USBD_HandleTypeDef *pdev, uint8_t *pbuf, uint16_t len)
	USBD_CtlContinueRx continue receive data on the ctl pipe. More...
USBD_StatusTypeDef	USBD_CtlSendStatus (USBD_HandleTypeDef *pdev)
	USBD_CtlSendStatus send zero lzngth packet on the ctl pipe. More...
USBD_StatusTypeDef	USBD_CtlReceiveStatus (USBD_HandleTypeDef *pdev)
	USBD_CtlReceiveStatus receive zero lzngth packet on the ctl pipe. More...
uint16_t	USBD_GetRxCount (USBD_HandleTypeDef *pdev, uint8_t epnum)
	USBD_GetRxCount returns the received data length. More...

Detailed Description

Function Documentation

USBD_CtlSendData()

USBD_StatusTypeDef USBD_CtlSendData	(	USBD_HandleTypeDef *	pdev,
		uint8_t *	pbuf,
		uint16_t	len
	)

USBD_CtlSendData send data on the ctl pipe.

Parameters

pdev	device instance
buff	pointer to data buffer
len	length of data to be sent

Return values

status

{
  /* Set EP0 State */
  pdev->ep0_state          = USBD_EP0_DATA_IN;
  pdev->ep_in[0].total_length = len;
  pdev->ep_in[0].rem_length   = len;
 /* Start the transfer */
  USBD_LL_Transmit (pdev, 0x00, pbuf, len);
 
  return USBD_OK;
}

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USBD_CtlContinueSendData()

USBD_StatusTypeDef USBD_CtlContinueSendData	(	USBD_HandleTypeDef *	pdev,
		uint8_t *	pbuf,
		uint16_t	len
	)

USBD_CtlContinueSendData continue sending data on the ctl pipe.

Parameters

pdev	device instance
buff	pointer to data buffer
len	length of data to be sent

Return values

status

{
 /* Start the next transfer */
  USBD_LL_Transmit (pdev, 0x00, pbuf, len);
 
  return USBD_OK;
}

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USBD_CtlPrepareRx()

USBD_StatusTypeDef USBD_CtlPrepareRx	(	USBD_HandleTypeDef *	pdev,
		uint8_t *	pbuf,
		uint16_t	len
	)

USBD_CtlPrepareRx receive data on the ctl pipe.

Parameters

pdev	device instance
buff	pointer to data buffer
len	length of data to be received

Return values

status

{
  /* Set EP0 State */
  pdev->ep0_state = USBD_EP0_DATA_OUT;
  pdev->ep_out[0].total_length = len;
  pdev->ep_out[0].rem_length   = len;
  /* Start the transfer */
  USBD_LL_PrepareReceive (pdev,
                          0,
                          pbuf,
                         len);
 
  return USBD_OK;
}

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USBD_CtlContinueRx()

USBD_StatusTypeDef USBD_CtlContinueRx	(	USBD_HandleTypeDef *	pdev,
		uint8_t *	pbuf,
		uint16_t	len
	)

USBD_CtlContinueRx continue receive data on the ctl pipe.

Parameters

pdev	device instance
buff	pointer to data buffer
len	length of data to be received

Return values

status

{
 
  USBD_LL_PrepareReceive (pdev,
                          0,
                          pbuf,
                          len);
  return USBD_OK;
}

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USBD_CtlSendStatus()

USBD_StatusTypeDef USBD_CtlSendStatus

(

USBD_HandleTypeDef *

pdev

)

USBD_CtlSendStatus send zero lzngth packet on the ctl pipe.

Parameters

pdev	device instance

Return values

status

{
 
  /* Set EP0 State */
  pdev->ep0_state = USBD_EP0_STATUS_IN;
 
 /* Start the transfer */
  USBD_LL_Transmit (pdev, 0x00, NULL, 0);
 
  return USBD_OK;
}

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USBD_CtlReceiveStatus()

USBD_StatusTypeDef USBD_CtlReceiveStatus

(

USBD_HandleTypeDef *

pdev

)

USBD_CtlReceiveStatus receive zero lzngth packet on the ctl pipe.

Parameters

pdev	device instance

Return values

status

{
  /* Set EP0 State */
  pdev->ep0_state = USBD_EP0_STATUS_OUT;
 
 /* Start the transfer */
  USBD_LL_PrepareReceive ( pdev,
                    0,
                    NULL,
                    0);
 
  return USBD_OK;
}

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USBD_GetRxCount()

uint16_t USBD_GetRxCount	(	USBD_HandleTypeDef *	pdev,
		uint8_t	ep_addr
	)

USBD_GetRxCount returns the received data length.

Parameters

pdev	device instance
ep_addr	endpoint address

Return values

Rx	Data blength

{
  return USBD_LL_GetRxDataSize(pdev, ep_addr);
}

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