src/main/io/statusindicator.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <stdbool.h>
  22 #include <stdint.h>
  23
  24 #include "platform.h"
  25
  26 #include "drivers/light_led.h"
  27 #include "drivers/time.h"
  28
  29 #include "statusindicator.h"
  30
  31 static uint32_t warningLedTimer = 0;
  32
  33 typedef enum {
  34     WARNING_LED_OFF = 0,
  35     WARNING_LED_ON,
  36     WARNING_LED_FLASH
  37 } warningLedState_e;
  38
  39 static warningLedState_e warningLedState = WARNING_LED_OFF;
  40
  41 void warningLedResetTimer(void) {
  42     uint32_t now = millis();
  43     warningLedTimer = now + 500000;
  44 }
  45
  46 void warningLedEnable(void)
  47 {
  48     warningLedState = WARNING_LED_ON;
  49 }
  50
  51 void warningLedDisable(void)
  52 {
  53     warningLedState = WARNING_LED_OFF;
  54 }
  55
  56 void warningLedFlash(void)
  57 {
  58     warningLedState = WARNING_LED_FLASH;
  59 }
  60
  61 void warningLedRefresh(void)
  62 {
  63     switch (warningLedState) {
  64         case WARNING_LED_OFF:
  65             LED0_OFF;
  66             break;
  67         case WARNING_LED_ON:
  68             LED0_ON;
  69             break;
  70         case WARNING_LED_FLASH:
  71             LED0_TOGGLE;
  72             break;
  73     }
  74
  75     uint32_t now = micros();
  76     warningLedTimer = now + 500000;
  77 }
  78
  79 void warningLedUpdate(void)
  80 {
  81     uint32_t now = micros();
  82
  83     if ((int32_t)(now - warningLedTimer) < 0) {
  84         return;
  85     }
  86
  87     warningLedRefresh();
  88 }