static void usb_check_for_transfer_events(const usb_device_t* const device) {
const uint32_t endptcomplete = usb_get_endpoint_complete(device);
if( endptcomplete ) {
for( uint_fast8_t i=0; i<6; i++ ) {
const uint32_t endptcomplete_out_bit = USB0_ENDPTCOMPLETE_ERCE(1 << i);
if( endptcomplete & endptcomplete_out_bit ) {
usb_clear_endpoint_complete(endptcomplete_out_bit, device);
usb_endpoint_t* const endpoint =
usb_endpoint_from_address(
usb_endpoint_address(USB_TRANSFER_DIRECTION_OUT, i),
device);
if( endpoint && endpoint->transfer_complete ) {
endpoint->transfer_complete(endpoint);
}
}
const uint32_t endptcomplete_in_bit = USB0_ENDPTCOMPLETE_ETCE(1 << i);
if( endptcomplete & endptcomplete_in_bit ) {
usb_clear_endpoint_complete(endptcomplete_in_bit, device);
usb_endpoint_t* const endpoint =
usb_endpoint_from_address(
usb_endpoint_address(USB_TRANSFER_DIRECTION_IN, i),
device);
if( endpoint && endpoint->transfer_complete ) {
endpoint->transfer_complete(endpoint);
}
}
}
}
}
bool usb_endpoint_is_complete(
const usb_endpoint_t* const endpoint
) {
const uint_fast8_t endpoint_number = usb_endpoint_number(endpoint->address);
if( usb_endpoint_is_in(endpoint->address) ) {
return USB0_ENDPTCOMPLETE & USB0_ENDPTCOMPLETE_ETCE(1 << endpoint_number);
} else {
return USB0_ENDPTCOMPLETE & USB0_ENDPTCOMPLETE_ERCE(1 << endpoint_number);
}
}
static void usb_endpoint_clear_pending_interrupts(
const usb_endpoint_t* const endpoint
) {
const uint_fast8_t endpoint_number = usb_endpoint_number(endpoint->address);
if( usb_endpoint_is_in(endpoint->address) ) {
usb_clear_pending_interrupts(USB0_ENDPTCOMPLETE_ETCE(1 << endpoint_number));
} else {
usb_clear_pending_interrupts(USB0_ENDPTCOMPLETE_ERCE(1 << endpoint_number));
}
}
