dlite/fs/init.js

load('api_config.js');
load('api_gpio.js');
load('api_mqtt.js');
load('api_net.js');
load('api_sys.js');
load('api_rpc.js');
load('api_timer.js');

let led = Cfg.get('pins.led');

// Helper C function get_led_gpio_pin() in src/main.c returns built-in LED GPIO
// let onBoardLed = ffi('int get_led_gpio_pin()')();

let button = Cfg.get('pins.button');
let topic = '/devices/' + Cfg.get('device.id') + '/events';

print('LED GPIO:', led, 'button GPIO:', button);

let getInfo = function() {
  return JSON.stringify({
    total_ram: Sys.total_ram(),
    free_ram: Sys.free_ram()
  });
};

// Blink built-in LED every second
GPIO.set_mode(led, GPIO.MODE_OUTPUT);
Timer.set(5000 /* 1 sec */, true /* repeat */, function() {
  let value = GPIO.toggle(led);
  print(value ? 'Tick' : 'Tock', 'uptime:', Sys.uptime(), getInfo());
}, null);

// Publish to MQTT topic on a button press. Button is wired to GPIO pin 0
/*
GPIO.set_button_handler(button, GPIO.PULL_UP, GPIO.INT_EDGE_NEG, 200, function() {
  let message = getInfo();
  let ok = MQTT.pub(topic, message, 1);
  print('Published:', ok, topic, '->', message);
}, null);
*/

// Monitor network connectivity.
Net.setStatusEventHandler(function(ev, arg) {
  let evs = '???';
  if (ev === Net.STATUS_DISCONNECTED) {
    evs = 'DISCONNECTED';
  } else if (ev === Net.STATUS_CONNECTING) {
    evs = 'CONNECTING';
  } else if (ev === Net.STATUS_CONNECTED) {
    evs = 'CONNECTED';
  } else if (ev === Net.STATUS_GOT_IP) {
    evs = 'GOT_IP';
  }
  print('== Net event:', ev, evs);
}, null);

// Initialize LED controller
let addColor = ffi('void addColor(char *,int,int,int)');
let addLedDefinition = ffi('void addLedDefinition(char *, char *, char *, int, int, int)');
let addAnimationStep = ffi('void addAnimationStep(int, int, int)');
let LEDMode_on=1, LEDMode_off=2, LEDMode_blink=3, LEDMode_tv=4, LEDMode_fire=5;
let LEDStateEngine_start = ffi('void startLEDStateEngine(void)');
let LEDStateEngine_pause = ffi('void pauseLEDStateEngine(void)');