HPET_CONF_TIMER_INT_ROUTE_SHIFT
#define HPET_GET_CONF_TIMER_INT_ROUTE(timer) (((timer)->config & HPET_CONF_TIMER_INT_ROUTE_MASK) >> HPET_CONF_TIMER_INT_ROUTE_SHIFT)
timer->config |= (interrupt << HPET_CONF_TIMER_INT_ROUTE_SHIFT)
#define HPET_GET_CONF_TIMER_INT_ROUTE(timer) (((timer)->config & HPET_CONF_TIMER_INT_ROUTE_MASK) >> HPET_CONF_TIMER_INT_ROUTE_SHIFT)
sTimer->config |= (interrupt << HPET_CONF_TIMER_INT_ROUTE_SHIFT)