static void isr_sudav()
{
packetizer_pkt_size = MAX_PACKET_SIZE_EP0;
bmRequestType = SETUPBUF[0];
if((bmRequestType & 0x60 ) == 0x00)
{
switch(SETUPBUF[1])
{
case USB_REQ_GET_DESCRIPTOR:
usb_process_get_descriptor();
break;
case USB_REQ_GET_STATUS:
usb_process_get_status();
break;
case USB_REQ_SET_ADDRESS:
usb_state = ADDRESSED;
usb_current_config = 0x00;
break;
case USB_REQ_GET_CONFIGURATION:
switch(usb_state)
{
case ADDRESSED:
IN0BUF[0] = 0x00;
IN0BC = 0x01;
break;
case CONFIGURED:
IN0BUF[0] = usb_current_config;
IN0BC = 0x01;
break;
case ATTACHED:
case POWERED:
case SUSPENDED:
case DEFAULT:
default:
USB_EP0_STALL();
break;
}
break;
case USB_REQ_SET_CONFIGURATION:
switch(SETUPBUF[2])
{
case 0x00:
usb_state = ADDRESSED;
usb_current_config = 0x00;
USB_EP0_HSNAK();
break;
case 0x01:
usb_state = CONFIGURED;
usb_bm_state |= USB_BM_STATE_CONFIGURED;
usb_current_config = 0x01;
USB_EP0_HSNAK();
break;
default:
USB_EP0_STALL();
break;
}
break;
case USB_REQ_GET_INTERFACE: // GET_INTERFACE
IN0BUF[0] = usb_current_alt_interface;
IN0BC = 0x01;
break;
case USB_REQ_SET_DESCRIPTOR:
case USB_REQ_SET_INTERFACE: // SET_INTERFACE
case USB_REQ_SYNCH_FRAME: // SYNCH_FRAME
default:
USB_EP0_STALL();
break;
}
}
// bmRequestType = 0 01 xxxxx : Data transfer direction: Host-to-device, Type: Class
else if((bmRequestType & 0x60 ) == 0x20) // Class request
{
bool cret = handle_class_request((usbRequest_t *) SETUPBUF);
if (SETUPBUF[6] != 0 && ((bmRequestType & 0x80) == 0x00))
OUT0BC = 0xff;
else if (!cret)
USB_EP0_HSNAK();
} else // Unknown request type
{
USB_EP0_STALL();
}
}
static void isr_sudav()
{
bmRequestType = setupbuf[0];
if((bmRequestType & 0x60 ) == 0x00)
{
switch(setupbuf[1])
{
case USB_REQ_GET_DESCRIPTOR:
usb_process_get_descriptor();
break;
case USB_REQ_GET_STATUS:
usb_process_get_status();
break;
case USB_REQ_SET_ADDRESS:
usb_state = ADDRESSED;
usb_current_config = 0x00;
break;
case USB_REQ_GET_CONFIGURATION:
switch(usb_state)
{
case ADDRESSED:
in0buf[0] = 0x00;
in0bc = 0x01;
break;
case CONFIGURED:
in0buf[0] = usb_current_config;
in0bc = 0x01;
break;
case ATTACHED:
case POWERED:
case SUSPENDED:
case DEFAULT:
default:
USB_EP0_STALL();
break;
}
break;
case USB_REQ_SET_CONFIGURATION:
switch(setupbuf[2])
{
case 0x00:
usb_state = ADDRESSED;
usb_current_config = 0x00;
USB_EP0_HSNAK();
break;
case 0x01:
usb_state = CONFIGURED;
usb_bm_state |= USB_BM_STATE_CONFIGURED;
usb_current_config = 0x01;
USB_EP0_HSNAK();
break;
default:
USB_EP0_STALL();
break;
}
break;
case USB_REQ_GET_INTERFACE: // GET_INTERFACE
in0buf[0] = usb_current_alt_interface;
in0bc = 0x01;
break;
case USB_REQ_SET_DESCRIPTOR:
case USB_REQ_SET_INTERFACE: // SET_INTERFACE
case USB_REQ_SYNCH_FRAME: // SYNCH_FRAME
default:
USB_EP0_STALL();
break;
}
}
// bmRequestType = 0 01 xxxxx : Data transfer direction: Host-to-device, Type: Class
else if((bmRequestType & 0x60 ) == 0x20) // Class request
{
if(setupbuf[6] != 0 && ((bmRequestType & 0x80) == 0x00))
{
// If there is a OUT-transaction associated with the Control-Transfer-Write we call the callback
// when the OUT-transaction is finished. Note that this function do not handle several out transactions.
out0bc = 0xff;
}
else
{
USB_EP0_HSNAK();
}
}
else // Unknown request type
{
USB_EP0_STALL();
}
}
