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/*
* 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; 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"
__pdata 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) __reentrant
{
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;
}
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