From 72b6c699d355fcd41addb9919d846e63105b9db7 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Mon, 13 May 2013 22:34:19 -0700 Subject: altos: Add debounce helper. Use in button and quadrature drivers for TeleLCO Signed-off-by: Keith Packard --- src/drivers/ao_event.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) (limited to 'src/drivers/ao_event.c') diff --git a/src/drivers/ao_event.c b/src/drivers/ao_event.c index 440ef2de..c428125d 100644 --- a/src/drivers/ao_event.c +++ b/src/drivers/ao_event.c @@ -25,11 +25,6 @@ #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; @@ -48,17 +43,9 @@ ao_event_get(struct ao_event *ev) /* 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, @@ -71,7 +58,7 @@ ao_event_put_isr(uint8_t type, uint8_t unit, uint32_t value) } 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);); } -- cgit v1.2.3