Function verifyPowerButtonDuration

src/main.cpp:164–204

Verify power button press duration on wake-up from deep sleep Pre-condition: isWakeupByPowerButton() == true

// Verify power button press duration on wake-up from deep sleep
// Pre-condition: isWakeupByPowerButton() == true
void verifyPowerButtonDuration() {
  if (SETTINGS.shortPwrBtn == CrossPointSettings::SHORT_PWRBTN::SLEEP) {
    // Fast path for short press
    // Needed because inputManager.isPressed() may take up to ~500ms to return the correct state
    return;
  }

  // Give the user up to 1000ms to start holding the power button, and must hold for SETTINGS.getPowerButtonDuration()
  const auto start = millis();
  bool abort = false;
  // Subtract the current time, because inputManager only starts counting the HeldTime from the first update()
  // This way, we remove the time we already took to reach here from the duration,
  // assuming the button was held until now from millis()==0 (i.e. device start time).
  const uint16_t calibration = start;
  const uint16_t calibratedPressDuration =
      (calibration < SETTINGS.getPowerButtonDuration()) ? SETTINGS.getPowerButtonDuration() - calibration : 1;

  gpio.update();
  // Needed because inputManager.isPressed() may take up to ~500ms to return the correct state
  while (!gpio.isPressed(HalGPIO::BTN_POWER) && millis() - start < 1000) {
    delay(10);  // only wait 10ms each iteration to not delay too much in case of short configured duration.
    gpio.update();
  }

  t2 = millis();
  if (gpio.isPressed(HalGPIO::BTN_POWER)) {
    do {
      delay(10);
      gpio.update();
    } while (gpio.isPressed(HalGPIO::BTN_POWER) && gpio.getPowerButtonHeldTime() < calibratedPressDuration);
    abort = gpio.getPowerButtonHeldTime() < calibratedPressDuration;
  } else {
    abort = true;
  }

  if (abort) {
    // Button released too early. Returning to sleep.
    // IMPORTANT: Re-arm the wakeup trigger before sleeping again
    powerManager.startDeepSleep(gpio);
  }
}
void waitForPowerRelease() {
  gpio.update();
  while (gpio.isPressed(HalGPIO::BTN_POWER)) {