src/main/drivers/light_led.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 "platform.h"
  22
  23 #include "pg/pg_ids.h"
  24
  25 #include "drivers/io.h"
  26 #include "io_impl.h"
  27
  28 #include "light_led.h"
  29
  30 PG_REGISTER_WITH_RESET_FN(statusLedConfig_t, statusLedConfig, PG_STATUS_LED_CONFIG, 0);
  31
  32 static IO_t leds[STATUS_LED_NUMBER];
  33 static uint8_t ledInversion = 0;
  34
  35 #ifndef LED0_PIN
  36 #define LED0_PIN NONE
  37 #endif
  38
  39 #ifndef LED1_PIN
  40 #define LED1_PIN NONE
  41 #endif
  42
  43 #ifndef LED2_PIN
  44 #define LED2_PIN NONE
  45 #endif
  46
  47 void pgResetFn_statusLedConfig(statusLedConfig_t *statusLedConfig)
  48 {
  49     statusLedConfig->ioTags[0] = IO_TAG(LED0_PIN);
  50     statusLedConfig->ioTags[1] = IO_TAG(LED1_PIN);
  51     statusLedConfig->ioTags[2] = IO_TAG(LED2_PIN);
  52
  53     statusLedConfig->inversion = 0
  54 #ifdef LED0_INVERTED
  55     | BIT(0)
  56 #endif
  57 #ifdef LED1_INVERTED
  58     | BIT(1)
  59 #endif
  60 #ifdef LED2_INVERTED
  61     | BIT(2)
  62 #endif
  63     ;
  64 }
  65
  66 void ledInit(const statusLedConfig_t *statusLedConfig)
  67 {
  68     ledInversion = statusLedConfig->inversion;
  69     for (int i = 0; i < STATUS_LED_NUMBER; i++) {
  70         if (statusLedConfig->ioTags[i]) {
  71             leds[i] = IOGetByTag(statusLedConfig->ioTags[i]);
  72             IOInit(leds[i], OWNER_LED, RESOURCE_INDEX(i));
  73             IOConfigGPIO(leds[i], IOCFG_OUT_PP);
  74         } else {
  75             leds[i] = IO_NONE;
  76         }
  77     }
  78
  79     LED0_OFF;
  80     LED1_OFF;
  81     LED2_OFF;
  82 }
  83
  84 void ledToggle(int led)
  85 {
  86     IOToggle(leds[led]);
  87 }
  88
  89 void ledSet(int led, bool on)
  90 {
  91     const bool inverted = (1 << (led)) & ledInversion;
  92     IOWrite(leds[led], on ? inverted : !inverted);
  93 }