2 * Copyright © 2013 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
18 #ifndef _AO_DEBOUNCE_H_
19 #define _AO_DEBOUNCE_H_
22 struct ao_debounce *next;
24 /* time that pin value must be stable before accepting */
27 /* last value reported to app; don't report it twice */
30 /* current count of intervals pin value has been stable */
33 /* This pin is running */
36 /* Get the current pin value */
37 uint8_t (*_get)(struct ao_debounce *debounce);
39 /* The stable value has changed */
40 void (*_set)(struct ao_debounce *debounce, uint8_t value);
44 _ao_debounce_start(struct ao_debounce *debounce);
47 _ao_debounce_stop(struct ao_debounce *debounce);
50 ao_debounce_init(void);
52 #endif /* _AO_DEBOUNCE_H_ */