/**
* @brief Deactivate an endpoint
* @param hpcd: PCD handle
* @param ep_addr: endpoint address
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Close(PCD_HandleTypeDef * hpcd, uint8_t ep_addr)
{
PCD_EPTypeDef *ep;
if ((ep_addr & 0x80) == 0x80) {
ep = &hpcd->IN_ep[ep_addr & 0x7F];
} else {
ep = &hpcd->OUT_ep[ep_addr & 0x7F];
}
ep->num = ep_addr & 0x7F;
ep->is_in = (0x80 & ep_addr) != 0;
__HAL_LOCK(hpcd);
if (ep->doublebuffer == 0) {
if (ep->is_in) {
PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num);
/* Configure DISABLE status for the Endpoint */
PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num,
USB_EP_TX_DIS);
} else {
PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num);
/* Configure DISABLE status for the Endpoint */
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num,
USB_EP_RX_DIS);
}
}
/*Double Buffer */
else {
if (ep->is_in == 0) {
/* Clear the data toggle bits for the endpoint IN/OUT */
PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num);
PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num);
/* Reset value of the data toggle bits for the endpoint out */
PCD_TX_DTOG(hpcd->Instance, ep->num);
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num,
USB_EP_RX_DIS);
PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num,
USB_EP_TX_DIS);
} else {
/* Clear the data toggle bits for the endpoint IN/OUT */
PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num);
PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num);
PCD_RX_DTOG(hpcd->Instance, ep->num);
/* Configure DISABLE status for the Endpoint */
PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num,
USB_EP_TX_DIS);
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num,
USB_EP_RX_DIS);
}
}
__HAL_UNLOCK(hpcd);
return HAL_OK;
}
/**
* @brief Open and configure an endpoint
* @param hpcd: PCD handle
* @param ep_addr: endpoint address
* @param ep_mps: endpoint max packert size
* @param ep_type: endpoint type
* @retval HAL status
*/
HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint16_t ep_mps, uint8_t ep_type)
{
HAL_StatusTypeDef ret = HAL_OK;
PCD_EPTypeDef *ep;
if ((ep_addr & 0x80) == 0x80)
{
ep = &hpcd->IN_ep[ep_addr & 0x7F];
}
else
{
ep = &hpcd->OUT_ep[ep_addr & 0x7F];
}
ep->num = ep_addr & 0x7F;
ep->is_in = (0x80 & ep_addr) != 0;
ep->maxpacket = ep_mps;
ep->type = ep_type;
__HAL_LOCK(hpcd);
/* initialize Endpoint */
switch (ep->type)
{
case PCD_EP_TYPE_CTRL:
PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_CONTROL);
break;
case PCD_EP_TYPE_BULK:
PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_BULK);
break;
case PCD_EP_TYPE_INTR:
PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_INTERRUPT);
break;
case PCD_EP_TYPE_ISOC:
PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_ISOCHRONOUS);
break;
}
PCD_SET_EP_ADDRESS(hpcd->Instance, ep->num, ep->num);
if (ep->doublebuffer == 0)
{
if (ep->is_in)
{
/*Set the endpoint Transmit buffer address */
PCD_SET_EP_TX_ADDRESS(hpcd->Instance, ep->num, ep->pmaadress);
PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num);
/* Configure NAK status for the Endpoint*/
PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_NAK);
}
else
{
/*Set the endpoint Receive buffer address */
PCD_SET_EP_RX_ADDRESS(hpcd->Instance, ep->num, ep->pmaadress);
/*Set the endpoint Receive buffer counter*/
PCD_SET_EP_RX_CNT(hpcd->Instance, ep->num, ep->maxpacket);
PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num);
/* Configure VALID status for the Endpoint*/
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_VALID);
}
}
/*Double Buffer*/
else
{
/*Set the endpoint as double buffered*/
PCD_SET_EP_DBUF(hpcd->Instance, ep->num);
/*Set buffer address for double buffered mode*/
PCD_SET_EP_DBUF_ADDR(hpcd->Instance, ep->num,ep->pmaaddr0, ep->pmaaddr1);
if (ep->is_in==0)
{
/* Clear the data toggle bits for the endpoint IN/OUT*/
PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num);
PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num);
/* Reset value of the data toggle bits for the endpoint out*/
PCD_TX_DTOG(hpcd->Instance, ep->num);
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_VALID);
PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS);
}
else
{
/* Clear the data toggle bits for the endpoint IN/OUT*/
PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num);
PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num);
PCD_RX_DTOG(hpcd->Instance, ep->num);
/* Configure DISABLE status for the Endpoint*/
PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS);
PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_DIS);
}
}
__HAL_UNLOCK(hpcd);
return ret;
}
