diff options
Diffstat (limited to 'src/avr/ao_led_avr.c')
| -rw-r--r-- | src/avr/ao_led_avr.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/avr/ao_led_avr.c b/src/avr/ao_led_avr.c new file mode 100644 index 00000000..165e95d3 --- /dev/null +++ b/src/avr/ao_led_avr.c @@ -0,0 +1,68 @@ +/* + * Copyright © 2009 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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" + +uint8_t ao_led_enable; + +#define LED_PORT PORTB +#define LED_DDR DDRB + +void +ao_led_on(uint8_t colors) +{ + LED_PORT |= (colors & ao_led_enable); +} + +void +ao_led_off(uint8_t colors) +{ + LED_PORT &= ~(colors & ao_led_enable); +} + +void +ao_led_set(uint8_t colors) +{ + LED_PORT = (LED_PORT & ~(ao_led_enable)) | (colors & ao_led_enable); +} + +void +ao_led_toggle(uint8_t colors) +{ + LED_PORT ^= (colors & ao_led_enable); +} + +void +ao_led_for(uint8_t colors, uint16_t ticks) +{ + ao_led_on(colors); + ao_delay(ticks); + ao_led_off(colors); +} + +void +ao_led_init(uint8_t enable) +{ + ao_led_enable = enable; + if ((LED_DDR & enable)) { + printf ("oops! restarted\n"); + ao_panic(AO_PANIC_REBOOT); + } + LED_PORT &= ~enable; + LED_DDR |= enable; +} |