mma8x5x: Added upm support for some MMA8X5X sensors

This commit adds support for following sensors:
MMA8652 , MMA8653, MMA8451 , MMA8452 , MMA8453
These sensors are three-axis accelerometer.

Signed-off-by: Norbert Wesp <nwesp@phytec.de>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

examples/c++/CMakeLists.txt

@@ -336,6 +336,7 @@ add_example (lcdks)
 add_example (mmc35240)
 add_example (tcs37727)
 add_example (tmp006)
+add_example (mma8x5x)
 
 # These are special cases where you specify example binary, source file and module(s)
 include_directories (${PROJECT_SOURCE_DIR}/src)

examples/c++/mma8x5x.cxx

@@ -0,0 +1,91 @@
+/* Author: Norbert Wesp <nwesp@phytec.de>
+ * Copyright (c) 2017 Phytec Messtechnik GmbH.
+ *
+ * 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 <iostream>
+#include <signal.h>
+
+#include "mma8x5x.hpp"
+
+using namespace upm;
+
+bool run = true;
+
+void sig_handler(int sig)
+{
+  if (sig == SIGINT)
+    run = false;
+}
+
+int main(int argc, char **argv)
+{
+  signal(SIGINT, sig_handler);
+
+//! [Interesting]
+  upm::mma8x5x_data_t data;
+
+  // U can set your own parameters for an MMA8X5X instance with
+  /*
+    upm::mma8x5x_params_t params;
+    params.type   = <device-id>;      device-id of your sensor
+    params.rate   = <sampling-rate>;    between 0<<3 and 7<<3
+    params.range  = <range>;        between 0 and 2
+    params.offsetX  = <x-axis offset>;    between 0 and 255
+    params.offsetY  = <y-axis offset>;    between 0 and 255
+    params.offsetZ  = <z-axis offset>;    between 0 and 255
+  */
+
+  cout << "Initializing test-application..." << endl;
+
+  // Instantiate an MMA8X5X instance on bus 1 with default parameters
+  // The sensor-type will be detected by reading out the device-id
+  upm::MMA8X5X *mySensor = new upm::MMA8X5X(1);
+
+  // If u have set own parameters use this one
+  /*
+    upm::MMA8X5X *mySensor = new upm::MMA8X5X(1, &params);
+  */
+
+  // activate periodic measurements
+  mySensor->setActive();
+
+  // update and print available values every second
+  while (run)
+    {
+      mySensor->getData (&data, true);
+        cout << "x: " << (int)data.x << endl
+             << "y: " << (int)data.y << endl
+             << "z: " << (int)data.z << endl;
+
+        cout << endl;
+
+        sleep(1);
+    }
+
+  cout << "Exiting test-application..." << endl;
+
+  delete mySensor;
+//! [Interesting]
+
+  return 0;
+}