1/*
2 * Author: Brendan Le Foll <brendan.le.foll@intel.com>
3 * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
4 * Copyright (c) 2014 Intel Corporation.
5 * Author: Petre Eftime <petre.p.eftime@intel.com>
6 * Copyright (c) 2015 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
28
29import mraa.Dir;
30import mraa.Gpio;
31import mraa.Result;
32import mraa.mraa;
33
34public class BlinkIO {
35    static {
36        try {
37            System.loadLibrary("mraajava");
38        } catch (UnsatisfiedLinkError e) {
39            System.err.println(
40                    "Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
41                            e);
42            System.exit(1);
43        }
44    }
45
46    final static int DEFAULT_IOPIN = 8;
47
48    public static void main(String argv[]) throws InterruptedException {
49        int iopin = DEFAULT_IOPIN;
50        if (argv.length == 0) {
51            System.out.println("Provide an int arg if you want to flash on something other than " + DEFAULT_IOPIN);
52        } else {
53            iopin = Integer.valueOf(argv[0], DEFAULT_IOPIN);
54        }
55
56        //! [Interesting]
57        Gpio gpio = new Gpio(iopin);
58        Result result = gpio.dir(Dir.DIR_OUT);
59        if (result != Result.SUCCESS) {
60            mraa.printError(result);
61            System.exit(1);
62        }
63
64        while (true) {
65            gpio.write(1);
66            Thread.sleep(1000);
67            gpio.write(0);
68            Thread.sleep(1000);
69        }
70        //! [Interesting]
71    }
72}