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led.c 1.7 KB

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  1. /*
  2. Copyright 2015 Jun Wako <wakojun@gmail.com>
  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 "hal.h"
  15. #include "led.h"
  16. #include "led_controller.h"
  17. /* WARNING! This function needs to be callable from
  18. * both regular threads and ISRs, unlocked (during resume-from-sleep).
  19. * In particular, I2C functions (interrupt-driven) should NOT be called from here.
  20. */
  21. void led_set(uint8_t usb_led) {
  22. msg_t msg;
  23. if (usb_led & (1<<USB_LED_NUM_LOCK)) {
  24. chSysUnconditionalLock();
  25. msg=(1 << 8) | TOGGLE_NUM_LOCK;
  26. chMBPostI(&led_mailbox, msg);
  27. chSysUnconditionalUnlock();
  28. } else {
  29. chSysUnconditionalLock();
  30. msg=(0 << 8) | TOGGLE_NUM_LOCK;
  31. chMBPostI(&led_mailbox, msg);
  32. chSysUnconditionalUnlock();
  33. }
  34. if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
  35. chSysUnconditionalLock();
  36. msg=(1 << 8) | TOGGLE_CAPS_LOCK;
  37. chMBPostI(&led_mailbox, msg);
  38. chSysUnconditionalUnlock();
  39. } else {
  40. chSysUnconditionalLock();
  41. msg=(0 << 8) | TOGGLE_CAPS_LOCK;
  42. chMBPostI(&led_mailbox, msg);
  43. chSysUnconditionalUnlock();
  44. }
  45. }