void usb_endpoint_prime(
const usb_endpoint_t* const endpoint,
usb_transfer_descriptor_t* const first_td
) {
usb_queue_head_t* const qh = usb_queue_head(endpoint->address,
endpoint->device);
qh->next_dtd_pointer = first_td;
qh->total_bytes
&= ~( USB_TD_DTD_TOKEN_STATUS_ACTIVE
| USB_TD_DTD_TOKEN_STATUS_HALTED
)
;
const uint_fast8_t endpoint_number = usb_endpoint_number(endpoint->address);
if(endpoint->device->controller == 0) {
if( usb_endpoint_is_in(endpoint->address) ) {
USB0_ENDPTPRIME = USB0_ENDPTPRIME_PETB(1 << endpoint_number);
} else {
USB0_ENDPTPRIME = USB0_ENDPTPRIME_PERB(1 << endpoint_number);
}
}
if(endpoint->device->controller == 1) {
if( usb_endpoint_is_in(endpoint->address) ) {
USB1_ENDPTPRIME = USB1_ENDPTPRIME_PETB(1 << endpoint_number);
} else {
USB1_ENDPTPRIME = USB1_ENDPTPRIME_PERB(1 << endpoint_number);
}
}
}
static bool usb_endpoint_is_priming(
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_ENDPTPRIME & USB0_ENDPTPRIME_PETB(1 << endpoint_number);
} else {
return USB0_ENDPTPRIME & USB0_ENDPTPRIME_PERB(1 << endpoint_number);
}
}