src/main/io/statusindicator.c

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight 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 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight 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 Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdbool.h>
  19 #include <stdint.h>
  20
  21 #include "platform.h"
  22
  23 #include "drivers/light_led.h"
  24 #include "drivers/time.h"
  25
  26 #include "statusindicator.h"
  27
  28 static uint32_t warningLedTimer = 0;
  29
  30 typedef enum {
  31     WARNING_LED_OFF = 0,
  32     WARNING_LED_ON,
  33     WARNING_LED_FLASH
  34 } warningLedState_e;
  35
  36 static warningLedState_e warningLedState = WARNING_LED_OFF;
  37
  38 void warningLedResetTimer(void) {
  39     uint32_t now = millis();
  40     warningLedTimer = now + 500000;
  41 }
  42
  43 void warningLedEnable(void)
  44 {
  45     warningLedState = WARNING_LED_ON;
  46 }
  47
  48 void warningLedDisable(void)
  49 {
  50     warningLedState = WARNING_LED_OFF;
  51 }
  52
  53 void warningLedFlash(void)
  54 {
  55     warningLedState = WARNING_LED_FLASH;
  56 }
  57
  58 void warningLedRefresh(void)
  59 {
  60     switch (warningLedState) {
  61         case WARNING_LED_OFF:
  62             LED0_OFF;
  63             break;
  64         case WARNING_LED_ON:
  65             LED0_ON;
  66             break;
  67         case WARNING_LED_FLASH:
  68             LED0_TOGGLE;
  69             break;
  70     }
  71
  72     uint32_t now = micros();
  73     warningLedTimer = now + 500000;
  74 }
  75
  76 void warningLedUpdate(void)
  77 {
  78     uint32_t now = micros();
  79
  80     if ((int32_t)(now - warningLedTimer) < 0) {
  81         return;
  82     }
  83
  84     warningLedRefresh();
  85 }
  86
  87