/**
* @brief called when an EP is disabled
* @param pdev: device instance
* @param ep_addr: endpoint address
* @retval : status
*/
uint32_t DCD_EP_Close(USB_CORE_HANDLE *pdev , uint8_t ep_addr)
{
USB_EP *ep;
if ((ep_addr&0x80) == 0x80)
{
ep = &pdev->dev.in_ep[ep_addr & 0x7F];
}
else
{
ep = &pdev->dev.out_ep[ep_addr & 0x7F];
}
if (ep->doublebuffer == 0)
{
if (ep->is_in)
{
ClearDTOG_TX(ep->num);
/* Configure DISABLE status for the Endpoint*/
SetEPTxStatus(ep->num, EP_TX_DIS);
}
else
{
ClearDTOG_RX(ep->num);
/* Configure DISABLE status for the Endpoint*/
SetEPRxStatus(ep->num, EP_RX_DIS);
}
}
/*Double Buffer*/
else
{
if (ep->is_in==0)
{
/* Clear the data toggle bits for the endpoint IN/OUT*/
ClearDTOG_RX(ep->num);
ClearDTOG_TX(ep->num);
/* Reset value of the data toggle bits for the endpoint out*/
ToggleDTOG_TX(ep->num);
SetEPRxStatus(ep->num, EP_RX_DIS);
SetEPTxStatus(ep->num, EP_TX_DIS);
}
else
{
/* Clear the data toggle bits for the endpoint IN/OUT*/
ClearDTOG_RX(ep->num);
ClearDTOG_TX(ep->num);
ToggleDTOG_RX(ep->num);
/* Configure DISABLE status for the Endpoint*/
SetEPTxStatus(ep->num, EP_TX_DIS);
SetEPRxStatus(ep->num, EP_RX_DIS);
}
}
return USB_OK;
}
vsf_err_t stm32_usbd_ep_toggle_OUT_toggle(uint8_t idx)
{
int8_t index;
index = stm32_usbd_ep(idx);
if (index < 0)
{
return VSFERR_FAIL;
}
idx = (uint8_t)index;
ToggleDTOG_RX(idx);
return VSFERR_NONE;
}
/**
* @brief Configure an EP
* @param pdev : Device instance
* @param ep_addr: endpoint address
* @param ep_mps: endpoint max packet size
* @param ep_type: endpoint Type
*/
uint32_t DCD_EP_Open(USB_CORE_HANDLE *pdev ,
uint16_t ep_addr,
uint16_t ep_mps,
uint8_t ep_type)
{
USB_EP *ep;
/* initialize ep structure*/
if ((ep_addr & 0x80) == 0x80)
{
ep = &pdev->dev.in_ep[ep_addr & 0x7F];
ep->is_in = 1;
}
else
{
ep = &pdev->dev.out_ep[ep_addr & 0x7F];
ep->is_in = 0;
}
ep->maxpacket = ep_mps;
ep->type = ep_type;
ep->num = ep_addr & 0x7F;
if (ep->num == 0)
{
/* Initialize the control transfer variables*/
ep->ctl_data_len =0;
ep->rem_data_len = 0;
ep->total_data_len = 0;
}
/* Initialize the transaction level variables */
ep->xfer_buff = 0;
ep->xfer_len = 0;
ep->xfer_count = 0;
ep->is_stall = 0;
/* initialize HW */
switch (ep->type)
{
case USB_EP_CONTROL:
SetEPType(ep->num, EP_CONTROL);
break;
case USB_EP_BULK:
SetEPType(ep->num, EP_BULK);
break;
case USB_EP_INT:
SetEPType(ep->num, EP_INTERRUPT);
break;
case USB_EP_ISOC:
SetEPType(ep->num, EP_ISOCHRONOUS);
break;
}
if (ep->doublebuffer == 0)
{
if (ep->is_in)
{
/*Set the endpoint Transmit buffer address */
SetEPTxAddr(ep->num, ep->pmaadress);
ClearDTOG_TX(ep->num);
/* Configure NAK status for the Endpoint*/
SetEPTxStatus(ep->num, EP_TX_NAK);
}
else
{
/*Set the endpoint Receive buffer address */
SetEPRxAddr(ep->num, ep->pmaadress);
/*Set the endpoint Receive buffer counter*/
SetEPRxCount(ep->num, ep->maxpacket);
ClearDTOG_RX(ep->num);
/* Configure VALID status for the Endpoint*/
SetEPRxStatus(ep->num, EP_RX_VALID);
}
}
/*Double Buffer*/
else
{
/*Set the endpoint as double buffered*/
SetEPDoubleBuff(ep->num);
/*Set buffer address for double buffered mode*/
SetEPDblBuffAddr(ep->num,ep->pmaaddr0, ep->pmaaddr1);
if (ep->is_in==0)
{
/* Clear the data toggle bits for the endpoint IN/OUT*/
ClearDTOG_RX(ep->num);
ClearDTOG_TX(ep->num);
/* Reset value of the data toggle bits for the endpoint out*/
ToggleDTOG_TX(ep->num);
SetEPRxStatus(ep->num, EP_RX_VALID);
SetEPTxStatus(ep->num, EP_TX_DIS);
}
else
{
/* Clear the data toggle bits for the endpoint IN/OUT*/
ClearDTOG_RX(ep->num);
ClearDTOG_TX(ep->num);
ToggleDTOG_RX(ep->num);
/* Configure DISABLE status for the Endpoint*/
SetEPTxStatus(ep->num, EP_TX_DIS);
SetEPRxStatus(ep->num, EP_RX_DIS);
}
}
return USB_OK;
}
/*******************************************************************************
* Function Name : ClearDTOG_RX.
* Description : Clear the DTOG_RX bit.
* Input : bEpNum: Endpoint Number.
* Output : None.
* Return : None.
*******************************************************************************/
void ClearDTOG_RX(uint8_t bEpNum) {
if ((_GetENDPOINT(bEpNum) & EP_DTOG_RX) != 0) ToggleDTOG_RX(bEpNum);
}
