/* UCOM bulk EP_IN and EP_OUT endpoints handler */
static ErrorCode_t UCOM_bulk_hdlr(USBD_HANDLE_T hUsb, void *data, uint32_t event)
{
UCOM_DATA_T *pUcom = (UCOM_DATA_T *) data;
uint32_t count = 0;
switch (event) {
/* A transfer from us to the USB host that we queued has completed. */
case USB_EVT_IN:
/* check if UART had more data to send */
if (pUcom->rxBuf_uartIndex < pUcom->rxBuf_usbIndex) {
count = UCOM_BUF_SZ - pUcom->rxBuf_usbIndex;
}
else {
count = pUcom->rxBuf_uartIndex - pUcom->rxBuf_usbIndex;
}
if (count) {
pUcom->usbTxBusy = 1;
count = USBD_API->hw->WriteEP(pUcom->hUsb, USB_CDC_IN_EP, &pUcom->rxBuf[g_uCOM.rxBuf_usbIndex], count);
g_uCOM.rxBuf_usbIndex = (g_uCOM.rxBuf_usbIndex + count) & (UCOM_BUF_SZ - 1);
}
else {
pUcom->usbTxBusy = 0;
}
break;
/* We received a transfer from the USB host . */
case USB_EVT_OUT:
if ((Chip_UART_GetIntsEnabled(LPC_USART) & UART_IER_THREINT) == 0) {
pUcom->txBuf_count = USBD_API->hw->ReadEP(hUsb, USB_CDC_OUT_EP, pUcom->txBuf);
pUcom->txBuf_uartIndex = 0;
/* kick start UART tranmission */
pUcom->txBuf_uartIndex = Chip_UART_Send(LPC_USART,
&pUcom->txBuf[g_uCOM.txBuf_uartIndex],
pUcom->txBuf_count);
pUcom->txBuf_count -= pUcom->txBuf_uartIndex;
/* Enable UART transmit interrupt */
Chip_UART_IntEnable(LPC_USART, UART_IER_THREINT);
}
else {
pUcom->usbRxPending++;
}
break;
default:
break;
}
return LPC_OK;
}
static ErrorCode_t UCOM_bulk_hdlrOutGeneric(USBD_HANDLE_T hUsb, void *data, uint32_t event)
{
UCOM_DATA_T *pUcom = (UCOM_DATA_T *) data;
switch (event) {
case USB_EVT_OUT:
if(pUcom->selected!=0){
if ((Chip_UART_GetIntsEnabled(pUcom->selected) & UART_IER_THREINT) == 0) {
pUcom->txBuf_count = USBD_API->hw->ReadEP(hUsb, pUcom->outEndpoint, pUcom->txBuf);
pUcom->txBuf_uartIndex = 0;
/* kick start UART tranmission */
pUcom->txBuf_uartIndex = Chip_UART_Send(pUcom->selected,
&pUcom->txBuf[pUcom->txBuf_uartIndex],
pUcom->txBuf_count);
pUcom->txBuf_count -= pUcom->txBuf_uartIndex;
/* Enable UART transmit interrupt */
Chip_UART_IntEnable(pUcom->selected, UART_IER_THREINT);
}
else {
pUcom->usbRxPending++;
}
return LPC_OK;
}
break;
break;
default:
break;
}
return ERR_USBD_UNHANDLED;
}
