2 * Copyright © 2012 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.
21 #define AO_EXTI_MODE_RISING 1
22 #define AO_EXTI_MODE_FALLING 2
23 #define AO_EXTI_MODE_PULL_UP 4
24 #define AO_EXTI_MODE_PULL_DOWN 8
25 #define AO_EXTI_PRIORITY_LOW 16
26 #define AO_EXTI_PRIORITY_MED 0
27 #define AO_EXTI_PRIORITY_HIGH 32
29 extern void (*ao_int_callback)(void);
31 #define ao_exti_setup(gpio, pin, mode, callback) do { \
32 ao_int_callback = callback; \
35 #define ao_exti_set_mode(gpio, pin, mode) do { \
38 #define ao_exti_set_callback(port, pin, callback) do { \
39 ao_int_callback = callback; \
42 #define ao_exti_init()
44 #define ao_exti_enable(port, pin) do { \
45 P0IFG &= ~(1 << pin); \
47 PICTL |= PICTL_P0IENL; \
51 #define ao_exti_disable(port, pin) do { \
53 PICTL &= ~PICTL_P0IENL; \
56 #endif /* _AO_EXTI_H_ */