examples: moved examples to new c++ subfolder

Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

examples/c++/mpr121.cxx

@@ -0,0 +1,88 @@
+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * 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.
+ */
+
+#include <unistd.h>
+#include <signal.h>
+#include <iostream>
+#include "mpr121.h"
+
+using namespace std;
+
+int shouldRun = true;
+
+void sig_handler(int signo)
+{
+  if (signo == SIGINT)
+    shouldRun = false;
+}
+
+void printButtons(upm::MPR121 *touch)
+{
+  bool buttonPressed = false;
+
+  cout << "Buttons Pressed: ";
+  for (int i=0; i<12; i++)
+    {
+      if (touch->m_buttonStates & (1 << i))
+        {
+          cout << i << " ";
+          buttonPressed = true;
+        }
+    }
+
+  if (!buttonPressed)
+    cout << "None";
+
+  if (touch->m_overCurrentFault)
+    cout << "Over Current Fault detected!" << endl;
+
+  cout << endl;
+}
+
+int main(int argc, char **argv)
+{
+  signal(SIGINT, sig_handler);
+
+//! [Interesting]
+  // Instantiate an MPR121 on I2C bus 0
+
+  upm::MPR121 *touch = new upm::MPR121(MPR121_I2C_BUS, MPR121_DEFAULT_I2C_ADDR);
+
+  // init according to AN3944 defaults
+  touch->configAN3944();
+
+  while (shouldRun)
+    {
+      touch->readButtons();
+      printButtons(touch);
+      sleep(1);
+    }
+
+//! [Interesting]
+
+  cout << "Exiting..." << endl;
+
+  delete touch;
+  return 0;
+}