X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fcore%2Fao_debounce.c;fp=src%2Fcore%2Fao_debounce.c;h=0000000000000000000000000000000000000000;hp=b9d677290fc274a671fc718a4de6aa1250619dd6;hb=24167015705ae831692b95735968b04a876f935e;hpb=bb9fdef607728cc326a82aa632e59724f272e53b

diff --git a/src/core/ao_debounce.c b/src/core/ao_debounce.c
deleted file mode 100644
index b9d67729..00000000
--- a/src/core/ao_debounce.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- * Copyright © 2013 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include <ao.h>
-#include <ao_debounce.h>
-#include <ao_fast_timer.h>
-
-static uint8_t			ao_debounce_initialized;
-static uint8_t			ao_debounce_running;
-static struct ao_debounce	*ao_debounce;
-
-static uint8_t	values[64];
-static uint8_t	n;
-
-#define d_step(n)	(((n) + 1) & 63)
-
-static void
-_ao_debounce_set(struct ao_debounce *debounce, uint8_t value)
-{
-	if (value != debounce->value) {
-		values[n] = value;
-		n = (n + 1) & 63;
-		debounce->value = value;
-		debounce->_set(debounce, value);
-	}
-	_ao_debounce_stop(debounce);
-}
-
-void
-ao_debounce_dump(void)
-{
-	uint8_t	s;
-
-	for (s = 0; s < n; s++) {
-		printf ("%d: %d\n",
-			s, values[s]);
-	}
-	n = 0;
-}
-
-/*
- * Get the current value, set the result when we've
- * reached the debounce count limit
- */
-static void
-_ao_debounce_check(struct ao_debounce *debounce)
-{
-	uint8_t	next = debounce->_get(debounce);
-
-	if (next == debounce->current) {
-		if (debounce->count < debounce->hold) {
-			if (++debounce->count == debounce->hold)
-				_ao_debounce_set(debounce, debounce->current);
-		}
-	} else {
-		debounce->count = 0;
-		debounce->current = next;
-	}
-}
-
-static void
-_ao_debounce_isr(void)
-{
-	struct ao_debounce *debounce, *next;
-
-	for (debounce = ao_debounce; debounce; debounce = next) {
-		next = debounce->next;
-		_ao_debounce_check(debounce);
-	}
-}
-
-static void
-ao_debounce_on(void)
-{
-	ao_fast_timer_on(_ao_debounce_isr);
-}
-
-static void
-ao_debounce_off(void)
-{
-	ao_fast_timer_off(_ao_debounce_isr);
-}
-
-/*
- * Start monitoring one pin
- */
-void
-_ao_debounce_start(struct ao_debounce *debounce)
-{
-	uint32_t	m;
-
-	m = ao_arch_irqsave();
-	if (!debounce->running) {
-		debounce->running = 1;
-
-		/* Reset the counter */
-		debounce->count = 0;
-
-		/* Link into list */
-		debounce->next = ao_debounce;
-		ao_debounce = debounce;
-
-		/* Make sure the timer is running */
-		if (!ao_debounce_running++)
-			ao_debounce_on();
-
-		/* And go check the current value */
-		_ao_debounce_check(debounce);
-	}
-	ao_arch_irqrestore(m);
-}
-
-/*
- * Stop monitoring one pin
- */
-void
-_ao_debounce_stop(struct ao_debounce *debounce)
-{
-	struct ao_debounce **prev;
-	uint32_t m;
-
-	m = ao_arch_irqsave();
-	if (debounce->running) {
-		debounce->running = 0;
-
-		/* Unlink */
-		for (prev = &ao_debounce; (*prev); prev = &((*prev)->next)) {
-			if (*prev == debounce) {
-				*prev = debounce->next;
-				break;
-			}
-		}
-		debounce->next = NULL;
-
-		/* Turn off the timer if possible */
-		if (!--ao_debounce_running)
-			ao_debounce_off();
-	}
-	ao_arch_irqrestore(m);
-}
-
-void
-ao_debounce_init(void)
-{
-	if (ao_debounce_initialized)
-		return;
-	ao_debounce_initialized = 1;
-	ao_fast_timer_init();
-}