void usb_irq(void)
{
P0_4 = 1;
//
// Split case into an if and a switch to force Keil into not using a library function:
if (ivec == INT_USBRESET)
{
usbirq = 0x10;
usb_state = DEFAULT;
usb_current_config = 0;
usb_current_alt_interface = 0;
usb_bm_state = 0;
}
else
{
switch(ivec)
{
case INT_SUDAV:
usbirq = 0x01;
isr_sudav();
break;
case INT_SOF:
usbirq = 0x02;
break;
case INT_SUTOK:
usbirq = 0x04;
packetizer_data_ptr = NULL;
packetizer_data_size = 0;
packetizer_pkt_size = 0;
break;
case INT_SUSPEND:
usbirq = 0x08;
break;
case INT_EP0IN:
in_irq = 0x01;
packetizer_isr_ep0_in();
break;
case INT_EP0OUT:
out_irq = 0x01;
packetizer_data_size = 0;
// req.misc_data = out0buf;
USB_EP0_HSNAK();
break;
case INT_E21IN:
// Clear interrupt
in_irq = 0x04;
break;
case INT_EP2OUT:
// Clear interrupt
out_irq = 0x04;
packet_received = true;
out2bc = 0xff;
break;
default:
break;
}
}
P0_4 = 0;
}
void usb_irq(void)
{
switch(IVEC)
{
case INT_USBRESET:
USBIRQ = 0x10;
usb_state = DEFAULT;
usb_current_config = 0;
usb_current_alt_interface = 0;
usb_bm_state = 0;
break;
case INT_SUDAV:
USBIRQ = 0x01;
isr_sudav();
break;
case INT_SOF:
USBIRQ = 0x02;
break;
case INT_SUTOK:
USBIRQ = 0x04;
packetizer_data_ptr = NULL;
packetizer_data_size = 0;
packetizer_pkt_size = 0;
break;
case INT_SUSPEND:
USBIRQ = 0x08;
break;
case INT_EP0IN:
IN_IRQ = 0x01;
packetizer_isr_ep0_in();
break;
case INT_EP0OUT:
usb_handle_data(OUT0BUF, OUT0BC);
OUT_IRQ = 0x01;
OUT0BC=0xff;
USB_EP0_HSNAK();
break;
case INT_EP1IN:
// Clear interrupt
IN_IRQ = 0x02;
IN1CS = 0x02;
break;
case INT_EP1OUT:
// Clear interrupt
OUT_IRQ = 0x02;
OUT1BC = 0xff;
break;
default:
break;
}
}
