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 {
  43     uint32_t now = millis();
  44     warningLedTimer = now + 500000;
  45 }
  46
  47 void warningLedEnable(void)
  48 {
  49     warningLedState = WARNING_LED_ON;
  50 }
  51
  52 void warningLedDisable(void)
  53 {
  54     warningLedState = WARNING_LED_OFF;
  55 }
  56
  57 void warningLedFlash(void)
  58 {
  59     warningLedState = WARNING_LED_FLASH;
  60 }
  61
  62 void warningLedRefresh(void)
  63 {
  64     switch (warningLedState) {
  65         case WARNING_LED_OFF:
  66             LED0_OFF;
  67             break;
  68         case WARNING_LED_ON:
  69             LED0_ON;
  70             break;
  71         case WARNING_LED_FLASH:
  72             LED0_TOGGLE;
  73             break;
  74     }
  75
  76     uint32_t now = micros();
  77     warningLedTimer = now + 500000;
  78 }
  79
  80 void warningLedUpdate(void)
  81 {
  82     uint32_t now = micros();
  83
  84     if ((int32_t)(now - warningLedTimer) < 0) {
  85         return;
  86     }
  87
  88     warningLedRefresh();
  89 }