Example #1
0
        public void send_packet(CRTPPacket pk)
        {
            long tick = DateTime.Now.Ticks;

            while (DateTime.Now.Ticks - tick < 20000000)
            {
                if (out_queue.Count == 0)
                {
                    out_queue.Enqueue(pk);
                    return;
                }
            }
            Console.WriteLine("RadioDriver: Could not send packet to copter");
        }
Example #2
0
        public void run()
        {
            byte[] dataOut  = new byte[] { 0xFF };
            bool   wait     = false;
            int    emptyCtr = 0;

            Crazyradio cradio = _radio_manager.enter();

            for (int i = 0; i < 10; i++)
            {
                _radio_ack resp = cradio.send_packet(new byte[] { 0xFF, 0x05, 0x01 });
                if (resp.data != null && resp.data.SequenceEqual(new byte[] { 0xFF, 0x05, 0x01 }))
                {
                    _has_safelink = true;
                    break;
                }
            }
            this.needs_resending = !this._has_safelink;

            _send_packet_safe(cradio, new byte[] { 0xF3 });
            _send_packet_safe(cradio, new byte[] { 0x5D, 0x05 });

            while (true)
            {
                _radio_ack ackStatus;
                cradio = _radio_manager.enter();
                if (_has_safelink)
                {
                    ackStatus = _send_packet_safe(cradio, dataOut);
                }
                else
                {
                    ackStatus = cradio.send_packet(dataOut);
                }

                if (ackStatus == null)
                {
                    Console.WriteLine("Dongle reported ACK status == null");
                    continue;
                }

                if (!ackStatus.ack)
                {
                    _retry_before_disconnect--;
                    if (_retry_before_disconnect == 0)
                    {
                        Console.WriteLine("Too many packets lost");
                        continue;
                    }
                }
                _retry_before_disconnect = 100;

                byte[] data = ackStatus.data;
                if (data != null && data.Length > 0)
                {
                    in_queue.Enqueue(new CRTPPacket(data[0], data.Skip(1).ToArray()));
                    wait     = false;
                    emptyCtr = 0;
                }
                else
                {
                    emptyCtr += 1;
                    if (emptyCtr > 10)
                    {
                        emptyCtr = 10;
                        wait     = true;
                    }
                    else
                    {
                        wait = false;
                    }
                }

                CRTPPacket outPacket = null;
                if (out_queue.Count > 0)
                {
                    outPacket = out_queue.Dequeue();
                }
                else
                {
                    if (wait)
                    {
                        for (int i = 0; i < 10; i++)
                        {
                            Thread.Sleep(1);
                            if (out_queue.Count > 0)
                            {
                                outPacket = out_queue.Dequeue();
                                break;
                            }
                        }
                    }
                }

                if (outPacket != null)
                {
                    List <byte> tmp = new List <byte>(outPacket.data.Length + 1)
                    {
                        outPacket.header
                    };
                    tmp.AddRange(outPacket.data);
                    dataOut = tmp.ToArray();
                }
                else
                {
                    dataOut = new byte[] { 0xFF };
                }
            }
        }