Keyboard firmwares for Atmel AVR and Cortex-M
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  1. /*
  2. Copyright 2012 Jun Wako <[email protected]>
  3. This program is free software: you can redistribute it and/or modify
  4. it under the terms of the GNU General Public License as published by
  5. the Free Software Foundation, either version 2 of the License, or
  6. (at your option) any later version.
  7. This program is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  10. GNU General Public License for more details.
  11. You should have received a copy of the GNU General Public License
  12. along with this program. If not, see <http://www.gnu.org/licenses/>.
  13. */
  14. #include <avr/io.h>
  15. #include "stdint.h"
  16. #include "led.h"
  17. void led_set(uint8_t usb_led)
  18. {
  19. if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
  20. // output low
  21. DDRD |= (1<<5);
  22. PORTD &= ~(1<<5);
  23. } else {
  24. // Hi-Z
  25. DDRD &= ~(1<<5);
  26. PORTD &= ~(1<<5);
  27. }
  28. }