orphan/phantom/led.c

   1 /*
   2 Copyright 2012 Jun Wako <wakojun@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #include <avr/io.h>
  19 #include "led.h"
  20
  21
  22 void led_set(uint8_t usb_led)
  23 {
  24     if (usb_led & (1<<USB_LED_CAPS_LOCK))
  25     {
  26         // Output high.
  27         DDRB |= (1<<6);
  28         PORTB |= (1<<6);
  29     }
  30     else
  31     {
  32         // Output low.
  33         DDRB &= ~(1<<6);
  34         PORTB &= ~(1<<6);
  35     }
  36
  37     if (usb_led & (1<<USB_LED_SCROLL_LOCK))
  38     {
  39         // Output high.
  40         DDRB |= (1<<7);
  41         PORTB |= (1<<7);
  42     }
  43     else
  44     {
  45         // Output low.
  46         DDRB &= ~(1<<7);
  47         PORTB &= ~(1<<7);
  48     }
  49 }