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java: added example BlinkOnboard based on blink_onboard.c

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Signed-off-by: Jakub Kramarz <jkramarz@virtuslab.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Jakub Kramarz
2015-04-29 01:52:02 +02:00
committed by Brendan Le Foll
parent ddff33280e
commit 609e9fb102
1 changed files with 76 additions and 0 deletions
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examples/java/BlinkOnboard.java Normal file
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/*
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
* Copyright (c) 2014 Intel Corporation.
* Author: Jakub Kramarz <jkramarz@virtuslab.com>
* Copyright (c) 2015 VirtusLab
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
public class BlinkOnboard {
static {
try {
System.loadLibrary("mraajava");
} catch (UnsatisfiedLinkError e) {
System.err.println(
"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
e);
System.exit(1);
}
}
public static void main(String argv[]) throws InterruptedException {
mraa.mraa_platform_t platform = mraa.mraa.getPlatformType();
mraa.Gpio gpio, gpio_in;
if (platform == mraa.mraa_platform_t.INTEL_GALILEO_GEN1) {
gpio = new mraa.Gpio(3);
} else if (platform == mraa.mraa_platform_t.INTEL_MINNOWBOARD_MAX) {
gpio = new mraa.Gpio(21);
} else {
gpio = new mraa.Gpio(13);
}
System.out.format("Welcome to libmraa\n Version: %s\n Running on %s\n",
mraa.mraa.getVersion(), platform.toString());
gpio.dir(mraa.Dir.DIR_OUT);
// on platforms with physical button use gpio_in
if (platform == mraa.mraa_platform_t.INTEL_MINNOWBOARD_MAX) {
gpio_in = new mraa.Gpio(14);
gpio_in.dir(mraa.Dir.DIR_IN);
System.out.println("Press and hold S1 to stop, Press SW1 to shutdown!");
} else {
gpio_in = null;
}
boolean state = false;
while (true) {
if (gpio_in != null && gpio_in.read() == 0) {
return;
}
if (state) {
state = false;
gpio.write(1);
} else {
state = true;
gpio.write(0);
}
Thread.sleep(1000);
}
}
}