/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=40: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "BluetoothFirmware.h"

#include "nsDebug.h"
#include "nsError.h"
#include <dlfcn.h>

namespace mozilla {
namespace dom {
namespace bluetooth {

static struct BluedroidFunctions {
  bool initialized;
  bool tried_initialization;

  BluedroidFunctions() :
    initialized(false),
    tried_initialization(false)
  {
  }

  int (* bt_enable)();
  int (* bt_disable)();
  int (* bt_is_enabled)();
} sBluedroidFunctions;

bool EnsureBluetoothInit() {
  if (sBluedroidFunctions.tried_initialization)
  {
    return sBluedroidFunctions.initialized;
  }

  sBluedroidFunctions.initialized = false;
  sBluedroidFunctions.tried_initialization = true;
  
  void* handle = dlopen("libbluedroid.so", RTLD_LAZY);

  if(!handle) {
    NS_ERROR("Failed to open libbluedroid.so, bluetooth cannot run");
    return false;
  }

  sBluedroidFunctions.bt_enable = (int (*)())dlsym(handle, "bt_enable");
  if(sBluedroidFunctions.bt_enable == NULL) {
    NS_ERROR("Failed to attach bt_enable function");
    return false;
  }
  sBluedroidFunctions.bt_disable = (int (*)())dlsym(handle, "bt_disable");
  if(sBluedroidFunctions.bt_disable == NULL) {
    NS_ERROR("Failed to attach bt_disable function");
    return false;
  }
  sBluedroidFunctions.bt_is_enabled = (int (*)())dlsym(handle, "bt_is_enabled");
  if(sBluedroidFunctions.bt_is_enabled == NULL) {
    NS_ERROR("Failed to attach bt_is_enabled function");
    return false;
  }
  sBluedroidFunctions.initialized = true;
  return true;
}

int IsBluetoothEnabled()
{
  return sBluedroidFunctions.bt_is_enabled();
}

int EnableBluetooth()
{
  return sBluedroidFunctions.bt_enable();
}

int DisableBluetooth()
{
  return sBluedroidFunctions.bt_disable();
}


}
}
}