Method verifyPowerButtonWakeup

lib/hal/HalGPIO.cpp:240–270

}

void HalGPIO::verifyPowerButtonWakeup(uint16_t requiredDurationMs, bool shortPressAllowed) {
  if (shortPressAllowed) {
    // Fast path - no duration check needed
    return;
  }
  // TODO: Intermittent edge case remains: a single tap followed by another single tap
  // can still power on the device. Tighten wake debounce/state handling here.

  // Calibrate: subtract boot time already elapsed, assuming button held since boot
  const uint16_t calibration = millis();
  const uint16_t calibratedDuration = (calibration < requiredDurationMs) ? (requiredDurationMs - calibration) : 1;

  const auto start = millis();
  inputMgr.update();
  // inputMgr.isPressed() may take up to ~500ms to return correct state
  while (!inputMgr.isPressed(BTN_POWER) && millis() - start < 1000) {
    delay(10);
    inputMgr.update();
  }
  if (inputMgr.isPressed(BTN_POWER)) {
    do {
      delay(10);
      inputMgr.update();
    } while (inputMgr.isPressed(BTN_POWER) && inputMgr.getPowerButtonHeldTime() < calibratedDuration);
    if (inputMgr.getPowerButtonHeldTime() < calibratedDuration) {
      startDeepSleep();
    }
  } else {
    startDeepSleep();
  }
}

bool HalGPIO::isUsbConnected() const {
  if (deviceIsX3()) {