#-------------------------------------------------------------
 - Specialized driver for AXP202 of LilyGo TWatch 2020V3
 - source is from: https://github.com/Xinyuan-LilyGO/TTGO_TWatch_Library/blob/master/src/TTGO.cpp
 -------------------------------------------------------------#
class AXP202_LilyGo_TWatch_2020V3 : AXP202
  def init()
    super(self).init()
    if self.wire
      # Change the shutdown time to 4 seconds
      # power->setShutdownTime(AXP_POWER_OFF_TIME_4S);
      self. set_shutdown_time(4)

      # Turn off the charging led
      # power->setChgLEDMode(AXP20X_LED_OFF);
      self.set_chg_led_mode(0)

      # // Turn off external enable
      # power->setPowerOutPut(AXP202_EXTEN, false);
      self.set_exten(false)

      # axp202 allows maximum charging current of 1800mA, minimum 300mA
      # power->setChargeControlCur(300);
      self.set_chg_current_ma(300)

      # power->setLDO2Voltage(3300);
      self.set_ldo_voltage(2, 3300)

      # // New features of Twatch V3
      # power->limitingOff();
      self.set_limiting_off()

      # //Audio power domain is AXP202 LDO4
      # power->setPowerOutPut(AXP202_LDO4, false);
      self.set_ldo_enable(4, false)
      # power->setLDO4Voltage(AXP202_LDO4_3300MV);
      self.set_ldo_voltage(4, 3300)
      # power->setPowerOutPut(AXP202_LDO4, true);
      self.set_ldo_enable(4, true)

      # // No use
      # power->setPowerOutPut(AXP202_LDO3, false);
      self.set_ldo_enable(3, false)

      tasmota.add_driver(self)
    end
  end
  
  # enable power to audio chip
  def audio_enable(en)
    self.set_ldo_enable(4, en)
  end

  # set power to backlight, dimming is controlled via PWM on GPIO15
  def backlight_enable(en)
    self.set_ldo_enable(2, en)
  end

  # Dimmer in percentage
  def set_displaydimmer(x)
    self.backlight_enable(x > 0)
  end

  # respond to display events
  def display(cmd, idx, payload, raw)
    if cmd == "dim" || cmd == "power"
      self.set_displaydimmer(idx)
    end
  end
end

return AXP202_LilyGo_TWatch_2020V3()