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      1 /*
      2  * Author: Stefan Andritoiu <stefan.andritoiu (at) intel.com>
      3  * Copyright (c) 2015 Intel Corporation.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be
     14  * included in all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 public class Ublox6Sample {
     26 	private static final int BUFFERLENGTH = 256;
     27 
     28 	static {
     29 		try {
     30 			System.loadLibrary("javaupm_ublox6");
     31 		} catch (UnsatisfiedLinkError e) {
     32 			System.err.println("error in loading native library");
     33 			System.exit(-1);
     34 		}
     35 	}
     36 
     37 	public static void main(String[] args) throws InterruptedException {
     38 		// ! [Interesting]
     39 		// Instantiate a Ublox6 GPS device on uart 0
     40 		upm_ublox6.Ublox6 nmea = new upm_ublox6.Ublox6(0);
     41 
     42 		// make sure port is initialized properly. 9600 baud is the default.
     43 		if (!nmea.setupTty()) {
     44 			throw new RuntimeException("Failed to setup tty port parameters");
     45 		}
     46 
     47 		// Collect and output NMEA data. There are various libraries out on
     48 		// the Internet, that can handle decoding NMEA data and presenting
     49 		// it in a more easily accessible format. This example will just
     50 		// check for, and read raw NMEA data from the device and output it
     51 		// on standard output.
     52 
     53 		// This device also supports numerous configuration options, which
     54 		// you can set with writeData(). Please refer to the Ublox-6 data
     55 		// sheet for further information on the formats of the data sent and
     56 		// received, and the various operating modes available.
     57 
     58 		byte[] nmeaBuffer = new byte[BUFFERLENGTH];
     59 
     60 		while (true) {
     61 			// we don't want the read to block in this example, so always
     62 			// check to see if data is available first.
     63 			if (nmea.dataAvailable()) {
     64 				int rv = nmea.readData(nmeaBuffer);
     65 
     66 				if (rv > 0)
     67 					for (int i = 0; i < rv; i++)
     68 						System.out.print((char) nmeaBuffer[i]);
     69 
     70 				if (rv < 0) { // some sort of read error occurred
     71 					System.err.println("Port read error.");
     72 					break;
     73 				}
     74 				continue;
     75 			}
     76 
     77 			Thread.sleep(1000);
     78 		}
     79 		// ! [Interesting]
     80 	}
     81 
     82 }