#define ao_event_queue_empty() (ao_event_queue_insert == ao_event_queue_remove)
#define ao_event_queue_full() (ao_event_queue_next(ao_event_queue_insert) == ao_event_queue_remove)
-/*
- * Whether a sequence of events from the same device should be collapsed
- */
-#define ao_event_can_collapse(type) ((type) == AO_EVENT_QUADRATURE)
-
struct ao_event ao_event_queue[AO_EVENT_QUEUE];
uint8_t ao_event_queue_insert;
uint8_t ao_event_queue_remove;
-uint8_t
+void
ao_event_get(struct ao_event *ev)
{
ao_arch_critical(
);
}
+uint8_t
+ao_event_get_for(struct ao_event *ev, uint16_t timeout)
+{
+ uint8_t empty = 1;
+ ao_arch_critical(
+ while ((empty = ao_event_queue_empty()))
+ if (ao_sleep_for(&ao_event_queue, timeout))
+ break;
+ if (!empty) {
+ *ev = ao_event_queue[ao_event_queue_remove];
+ ao_event_queue_remove = ao_event_queue_next(ao_event_queue_remove);
+ }
+ );
+ return empty;
+}
+
/* called with interrupts disabled */
void
-ao_event_put_isr(uint8_t type, uint8_t unit, uint32_t value)
+ao_event_put_isr(uint8_t type, uint8_t unit, int32_t value)
{
if (!ao_event_queue_full()) {
-
- if (ao_event_can_collapse(type) && !ao_event_queue_empty()) {
- uint8_t prev = ao_event_queue_prev(ao_event_queue_insert);
-
- if (ao_event_queue[prev].type == type &&
- ao_event_queue[prev].unit == unit)
- ao_event_queue_insert = prev;
- }
ao_event_queue[ao_event_queue_insert] = (struct ao_event) {
.type = type,
.unit = unit,
}
void
-ao_event_put(uint8_t type, uint8_t unit, uint32_t value)
+ao_event_put(uint8_t type, uint8_t unit, int32_t value)
{
ao_arch_critical(ao_event_put_isr(type, unit, value););
}