1/*jslint node:true, vars:true, bitwise:true, unparam:true */
2/*jshint unused:true */
3/*global */
4/*
5* Author: Zion Orent <zorent@ics.com>
6* Copyright (c) 2014 Intel Corporation.
7*
8* Permission is hereby granted, free of charge, to any person obtaining
9* a copy of this software and associated documentation files (the
10* "Software"), to deal in the Software without restriction, including
11* without limitation the rights to use, copy, modify, merge, publish,
12* distribute, sublicense, and/or sell copies of the Software, and to
13* permit persons to whom the Software is furnished to do so, subject to
14* the following conditions:
15*
16* The above copyright notice and this permission notice shall be
17* included in all copies or substantial portions of the Software.
18*
19* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
23* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26*/
27
28var GPSSensor = require('jsupm_ublox6');
29
30// Instantiate a Ublox6 GPS device on uart 0.
31var myGPSSensor = new GPSSensor.Ublox6(0);
32
33if (!myGPSSensor.setupTty(GPSSensor.int_B9600))
34{
35	console.log("Failed to setup tty port parameters");
36	process.exit(0);
37}
38
39// Collect and output NMEA data.
40
41// This device also supports numerous configuration options, which
42// you can set with writeData().  Please refer to the Ublox-6 data
43// sheet for further information on the formats of the data sent and
44// received, and the various operating modes available.
45
46var bufferLength = 256;
47var nmeaBuffer  = new GPSSensor.charArray(bufferLength);
48
49function getGPSInfo()
50{
51	// we don't want the read to block in this example, so always
52	// check to see if data is available first.
53	if (myGPSSensor.dataAvailable())
54	{
55		var rv = myGPSSensor.readData(nmeaBuffer, bufferLength);
56
57		var GPSData, dataCharCode, isNewLine, lastNewLine;
58		var numlines= 0;
59		if (rv > 0)
60		{
61			GPSData = "";
62			// read only the number of characters
63			// specified by myGPSSensor.readData
64			for (var x = 0; x < rv; x++)
65				GPSData += nmeaBuffer.getitem(x);
66			process.stdout.write(GPSData)
67		}
68
69		if (rv < 0) // some sort of read error occured
70		{
71			console.log("Port read error.");
72			process.exit(0);
73		}
74	}
75}
76
77setInterval(getGPSInfo, 100);
78
79// Print message when exiting
80process.on('SIGINT', function()
81{
82	console.log("Exiting...");
83	process.exit(0);
84});
85