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/*
Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
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, see <http://www.gnu.org/licenses/>.
*/
#include <avr/io.h>
#include "stdint.h"
#include "led.h"
/* LED pin configuration
*
* Caps PB0 (low)
* NumLock PB4 (low)
*
*/
void led_set(uint8_t usb_led)
{
// Set as output.
DDRB |= (1<<0) | (1<<4);
if (usb_led & (1<<USB_LED_CAPS_LOCK))
{
// Output low.
PORTB &= ~(1<<0);
}
else
{
// Output high.
PORTB |= (1<<0);
}
if (usb_led & (1<<USB_LED_NUM_LOCK))
{
// Output low.
PORTB &= ~(1<<4);
}
else
{
// Output high.
PORTB |= (1<<4);
}
}
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