void usbPoll(void)
{
if (!USBIRQ)
return;
// clear USB interrupt flag
USBIRQ = 0;
switch (ivec)
{
case INT_SUDAV: // SETUP data packet
usbirq = 0x01; // clear interrupt flag
usbRequestReceived(); // process setup data
// arm the EP0 OUT in case we have data after the request
out0bc = USB_EP0_SIZE;
break;
case INT_SOF: // SOF packet
usbirq = 0x02; // clear interrupt flag
++usbFrameCnt;
break;
/*
case INT_SUTOK: // setup token
usbirq = 0x04; // clear interrupt flag
break;
*/
case INT_SUSPEND: // SUSPEND signal
usbirq = 0x08; // clear interrupt flag
break;
case INT_USBRESET: // USB bus reset
usbirq = 0x10; // clear interrupt flag
usb_state = DEFAULT; // reset internal states
usb_current_config = 0;
break;
case INT_EP0IN:
in_irq = 0x01; // clear interrupt flag
// update USB RAM EP0 IN with new data
packetizer_isr_ep0_in();
break;
case INT_EP0OUT:
out_irq = 0x01; // clear interrupt flag
usbRequestDataReceived();
out0bc = USB_EP0_SIZE; // rearm the next EP0 OUT
break;
case INT_EP1IN:
in_irq = 0x02; // clear interrupt flag
//out0bc = USB_EP0_SIZE;
break;
case INT_EP2IN:
in_irq = 0x04; // clear interrupt flag
//out0bc = USB_EP0_SIZE;
break;
}
}
void usbPoll(void)
{
if (!USBIRQ)
return;
// clear USB interrupt flag
USBIRQ = 0;
switch (ivec)
{
case INT_SUDAV: // SETUP data packet
usbirq = 0x01; // clear interrupt flag
usbRequestReceived(); // process setup data
// arm the EP0 OUT in case we have data after the request
out0bc = 0x40;
break;
case INT_SOF: // SOF packet
usbirq = 0x02; // clear interrupt flag
++usbFrameCnt;
break;
/*
case INT_SUTOK: // setup token
usbirq = 0x04; // clear interrupt flag
break;
*/
case INT_SUSPEND: // SUSPEND signal
usbirq = 0x08; // clear interrupt flag
break;
case INT_USBRESET: // USB bus reset
usbirq = 0x10; // clear interrupt flag
usb_state = DEFAULT; // reset internal states
usb_current_config = 0;
break;
case INT_EP0IN:
in_irq = 0x01; // clear interrupt flag
// update USB RAM EP0 IN with new data
packetizer_isr_ep0_in();
break;
case INT_EP0OUT:
out_irq = 0x01; // clear interrupt flag
usbRequestDataReceived();
// rearm the next EP0 OUT
out0bc = 0x40;
break;
case INT_EP1IN:
in_irq = 0x02; // clear interrupt flag
// user code will have already filled IN1 buffer and set byte count
// USB controller clears busy flag when data is sent
break;
case INT_EP1OUT:
out_irq = 0x02; // clear interrupt flag
break;
}
}
