/**
* @brief USBD_DataInStage
* Handle data in stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t USBD_DataInStage(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
{
USB_OTG_EP *ep;
if(epnum == 0)
{
ep = &pdev->dev.in_ep[0];
if ( pdev->dev.device_state == USB_OTG_EP0_DATA_IN)
{
if(ep->rem_data_len > ep->maxpacket)
{
ep->rem_data_len -= ep->maxpacket;
if(pdev->cfg.dma_enable == 1)
{
/* in slave mode this, is handled by the TxFifoEmpty ISR */
ep->xfer_buff += ep->maxpacket;
}
USBD_CtlContinueSendData (pdev,
ep->xfer_buff,
ep->rem_data_len);
}
else
{ /* last packet is MPS multiple, so send ZLP packet */
if((ep->total_data_len % ep->maxpacket == 0) &&
(ep->total_data_len >= ep->maxpacket) &&
(ep->total_data_len < ep->ctl_data_len ))
{
USBD_CtlContinueSendData(pdev , NULL, 0);
ep->ctl_data_len = 0;
}
else
{
if((pdev->dev.cb->EP0_TxSent != NULL)&&
(pdev->dev.device_status == USB_OTG_CONFIGURED))
{
pdev->dev.cb->EP0_TxSent(pdev);
}
USBD_CtlReceiveStatus(pdev);
}
}
}
if (pdev->dev.test_mode == 1)
{
USBD_RunTestMode(pdev);
pdev->dev.test_mode = 0;
}
}
else if((pdev->dev.cb->DataIn != NULL)&&
(pdev->dev.device_status == USB_OTG_CONFIGURED))
{
pdev->dev.cb->DataIn(pdev, epnum);
}
return USBD_OK;
}
/**
* @brief USBD_DataInStage
* Handle data in stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum, uint8_t *pdata)
{
USBD_EndpointTypeDef *pep;
if(epnum == 0)
{
pep = &pdev->ep_in[0];
if ( pdev->ep0_state == USBD_EP0_DATA_IN)
{
if(pep->rem_length > pep->maxpacket)
{
pep->rem_length -= pep->maxpacket;
USBD_CtlContinueSendData (pdev,
pdata,
pep->rem_length);
}
else
{ /* last packet is MPS multiple, so send ZLP packet */
if((pep->total_length % pep->maxpacket == 0) &&
(pep->total_length >= pep->maxpacket) &&
(pep->total_length < pdev->ep0_data_len ))
{
USBD_CtlContinueSendData(pdev , NULL, 0);
pdev->ep0_data_len = 0;
}
else
{
if((pdev->pClass->EP0_TxSent != NULL)&&
(pdev->dev_state == USBD_STATE_CONFIGURED))
{
pdev->pClass->EP0_TxSent(pdev);
}
USBD_CtlReceiveStatus(pdev);
}
}
}
if (pdev->dev_test_mode == 1)
{
USBD_RunTestMode(pdev);
pdev->dev_test_mode = 0;
}
}
else if((pdev->pClass->DataIn != NULL)&&
(pdev->dev_state == USBD_STATE_CONFIGURED))
{
pdev->pClass->DataIn(pdev, epnum);
}
return USBD_OK;
}
/**
* @brief USBD_DataInStage
* Handle data in stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum, uint8_t *pdata)
{
USBD_EndpointTypeDef *pep;
UNUSED(pdata);
if(epnum == 0)
{
pep = &pdev->ep_in[0];
if ( pdev->ep0_state == USBD_EP0_DATA_IN)
{
if(pep->rem_length > pep->maxpacket)
{
pep->rem_length -= pep->maxpacket;
pdev->pData += pep->maxpacket;
/* Prepare endpoint for premature end of transfer */
/*
USBD_LL_PrepareReceive (pdev,
0,
0);
*/
USBD_CtlContinueSendData (pdev,
pdev->pData,
pep->rem_length);
}
else
{ /* last packet is MPS multiple, so send ZLP packet */
if((pep->total_length % pep->maxpacket == 0) &&
(pep->total_length >= pep->maxpacket) &&
(pep->total_length < pdev->ep0_data_len ))
{
/* Prepare endpoint for premature end of transfer */
/*
USBD_LL_PrepareReceive (pdev,
0,
0);
*/
USBD_CtlContinueSendData(pdev , NULL, 0);
pdev->ep0_data_len = 0;
}
else
{
uint8_t intf;
for (intf =0; intf < USBD_MAX_NUM_INTERFACES; intf++) {
if(usbd_is_valid_intf(pdev, intf) && (pdev->interfacesClass[intf].pClass->EP0_TxSent != NULL)&&
(pdev->dev_state == USBD_STATE_CONFIGURED))
{
((EP0_RxReady_t)PIC(pdev->interfacesClass[intf].pClass->EP0_TxSent))(pdev);
}
}
USBD_CtlReceiveStatus(pdev);
}
}
}
if (pdev->dev_test_mode == 1)
{
USBD_RunTestMode(pdev);
pdev->dev_test_mode = 0;
}
}
else {
uint8_t intf;
for (intf = 0; intf < USBD_MAX_NUM_INTERFACES; intf++) {
if( usbd_is_valid_intf(pdev, intf) && (pdev->interfacesClass[intf].pClass->DataIn != NULL)&&
(pdev->dev_state == USBD_STATE_CONFIGURED))
{
((DataIn_t)PIC(pdev->interfacesClass[intf].pClass->DataIn))(pdev, epnum);
}
}
}
return USBD_OK;
}