/* 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); } }