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  1. /*
  2. Copyright 2018 Cole Markham
  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 "staryu.h"
  15. #ifdef BACKLIGHT_ENABLE
  16. #ifdef BACKLIGHT_PIN
  17. #pragma error "BACKLIGHT_PIN must stay undefined otherwise software pwm is incorrectly used"
  18. #endif
  19. #define BACKLIGHT_PIN_COUNT 5
  20. static const pin_t backlight_pins[BACKLIGHT_PIN_COUNT] = { C2, C7, D5, D6, B0 };
  21. void backlight_init_ports(void) {
  22. for (uint8_t index = 0; index < BACKLIGHT_PIN_COUNT; index++) {
  23. setPinOutput(backlight_pins[index]);
  24. }
  25. }
  26. void backlight_set_value(uint8_t index, uint8_t level) {
  27. writePin(backlight_pins[index], !!level);
  28. }
  29. void backlight_set(uint8_t level) {
  30. for (uint8_t index = 0; index < BACKLIGHT_PIN_COUNT; index++) {
  31. backlight_set_value(index, level);
  32. }
  33. }
  34. #endif //BACKLIGHT_ENABLE