54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/*
|
|
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);
|
|
}
|
|
}
|