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sched: Move timer dispatch loop to board code

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Rename sched_timer_kick() to sched_timer_dispatch() and move its loop
into its callers in the board code.  This eliminates the need to
export timer_try_set_next() from the board code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-03-27 16:38:01 -04:00
parent 7436ec093a
commit 6d05dd07f5
8 changed files with 63 additions and 50 deletions
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57
src/sched.c
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@ -135,39 +135,34 @@ sched_del_timer(struct timer *del)
irq_restore(flag);
}
// Invoke timers - called from board timer irq code.
void
sched_timer_kick(void)
// Invoke the next timer - called from board hardware irq code.
unsigned int
sched_timer_dispatch(void)
{
for (;;) {
// Invoke timer callback
struct timer *t = timer_list;
uint_fast8_t res;
uint32_t updated_waketime;
if (CONFIG_INLINE_STEPPER_HACK && likely(!t->func)) {
res = stepper_event(t);
updated_waketime = t->waketime;
} else {
res = t->func(t);
updated_waketime = t->waketime;
}
// Update timer_list (rescheduling current timer if necessary)
unsigned int next_waketime = updated_waketime;
if (unlikely(res == SF_DONE)) {
next_waketime = t->next->waketime;
timer_list = t->next;
} else if (!timer_is_before(updated_waketime, t->next->waketime)) {
next_waketime = t->next->waketime;
timer_list = t->next;
insert_timer(t, updated_waketime);
}
// Schedule next timer event (or run next timer if it's ready)
res = timer_try_set_next(next_waketime);
if (res)
break;
// Invoke timer callback
struct timer *t = timer_list;
uint_fast8_t res;
uint32_t updated_waketime;
if (CONFIG_INLINE_STEPPER_HACK && likely(!t->func)) {
res = stepper_event(t);
updated_waketime = t->waketime;
} else {
res = t->func(t);
updated_waketime = t->waketime;
}
// Update timer_list (rescheduling current timer if necessary)
unsigned int next_waketime = updated_waketime;
if (unlikely(res == SF_DONE)) {
next_waketime = t->next->waketime;
timer_list = t->next;
} else if (!timer_is_before(updated_waketime, t->next->waketime)) {
next_waketime = t->next->waketime;
timer_list = t->next;
insert_timer(t, updated_waketime);
}
return next_waketime;
}
// Shutdown all user timers on an emergency stop.