/*
 * Copyright (C) OpenTX
 *
 * Based on code named
 *   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 "opentx.h"

volatile uint8_t buzzerCount ;

void buzzerOn()
{
  PIOA->PIO_SODR = 0x02000000L ;        // Set bit A25 ON
}

void buzzerOff()
{
  PIOA->PIO_CODR = 0x02000000L ;        // Set bit A25 ON
}

void buzzerSound(uint8_t duration)
{
  buzzerOn();
  buzzerCount = duration;
}

void buzzerHeartbeat()
{
  if (buzzerCount) {
    if (--buzzerCount == 0)
      buzzerOff();
  }
}