src/main/drivers/light_led.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 "platform.h"
  19
  20 #include "build/debug.h"
  21 #include "drivers/io.h"
  22 #include "io_impl.h"
  23
  24 #include "drivers/light_led.h"
  25
  26 static const IO_t leds[] = {
  27 #ifdef LED0
  28     DEFIO_IO(LED0),
  29 #else
  30     DEFIO_IO(NONE),
  31 #endif
  32 #ifdef LED1
  33     DEFIO_IO(LED1),
  34 #else
  35     DEFIO_IO(NONE),
  36 #endif
  37 #ifdef LED2
  38     DEFIO_IO(LED2),
  39 #else
  40     DEFIO_IO(NONE),
  41 #endif
  42 #if defined(LED0_A) || defined(LED1_A) || defined(LED2_A)
  43 #ifdef LED0_A
  44     DEFIO_IO(LED0_A),
  45 #else
  46     DEFIO_IO(NONE),
  47 #endif
  48 #ifdef LED1_A
  49     DEFIO_IO(LED1_A),
  50 #else
  51     DEFIO_IO(NONE),
  52 #endif
  53 #ifdef LED2_A
  54     DEFIO_IO(LED2_A),
  55 #else
  56     DEFIO_IO(NONE),
  57 #endif
  58 #endif
  59 };
  60
  61 uint8_t ledPolarity = 0
  62 #ifdef LED0_INVERTED
  63     | BIT(0)
  64 #endif
  65 #ifdef LED1_INVERTED
  66     | BIT(1)
  67 #endif
  68 #ifdef LED2_INVERTED
  69     | BIT(2)
  70 #endif
  71 #ifdef LED0_A_INVERTED
  72     | BIT(3)
  73 #endif
  74 #ifdef LED1_A_INVERTED
  75     | BIT(4)
  76 #endif
  77 #ifdef LED2_A_INVERTED
  78     | BIT(5)
  79 #endif
  80     ;
  81
  82 static uint8_t ledOffset = 0;
  83
  84 void ledInit(bool alternative_led)
  85 {
  86 #if defined(LED0_A) || defined(LED1_A) || defined(LED2_A)
  87     if (alternative_led) {
  88         ledOffset = LED_NUMBER;
  89     }
  90 #else
  91     UNUSED(alternative_led);
  92 #endif
  93
  94     LED0_OFF;
  95     LED1_OFF;
  96     LED2_OFF;
  97
  98     for (int i = 0; i < LED_NUMBER; i++) {
  99         if (leds[i + ledOffset]) {
 100             IOInit(leds[i + ledOffset], OWNER_LED, RESOURCE_OUTPUT, RESOURCE_INDEX(i));
 101             IOConfigGPIO(leds[i + ledOffset], IOCFG_OUT_PP);
 102         }
 103     }
 104
 105     LED0_OFF;
 106     LED1_OFF;
 107     LED2_OFF;
 108 }
 109
 110 void ledToggle(int led)
 111 {
 112     IOToggle(leds[led + ledOffset]);
 113 }
 114
 115 void ledSet(int led, bool on)
 116 {
 117     const bool inverted = (1 << (led + ledOffset)) & ledPolarity;
 118     IOWrite(leds[led + ledOffset], on ? inverted : !inverted);
 119 }