/*
 * Copyright (C) EdgeTX
 *
 * Based on code named
 *   opentx - https://github.com/opentx/opentx
 *   th9x - http://code.google.com/p/th9x
 *   er9x - http://code.google.com/p/er9x
 *   gruvin9x - http://code.google.com/p/gruvin9x
 *
 * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "stm32_hal.h"

#include "boot.h"
#include "hal/usb_driver.h"
#include "os/time.h"

#include "lcd.h"

#define FRAME_INTERVAL_MS 20

void bootloaderDFU()
{
  usbPlugged();
  usbStart();

  bootloaderDrawDFUScreen();

  uint32_t next_frame = time_get_ms();
  for (;;) {
    if (time_get_ms() - next_frame >= FRAME_INTERVAL_MS) {
      next_frame += FRAME_INTERVAL_MS;

      if (!usbPlugged()) break;
      bootloaderDrawDFUScreen();
      lcdRefresh();
    }
  }

  blExit();
  NVIC_SystemReset();
}