cpp_headers: Renamed C++ headers from .h -> .hpp

To make room for UPM C and C++ sensor code to coexist, all UPM
C++ headers have been renamed from h -> hpp.  This commit contains
updates to documentation, includes, cmake collateral, examples, and
swig interface files.

    * Renamed all cxx/cpp header files which contain the string
    'copyright intel' from .h -> .hpp (if not already hpp).

    * Replaced all references to .h with .hpp in documentation,
    source files, cmake collateral, example code, and swig interface
    files.

    * Replaced cmake variable module_h with module_hpp.

    * Intentionally left upm.h since this file currently does not
    contain code (documentation only).

Signed-off-by: Noel Eck <noel.eck@intel.com>

src/a110x/a110x.hpp

@@ -0,0 +1,109 @@
+/*
+ * 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.
+ */
+#pragma once
+
+#include <string>
+#include <mraa/gpio.h>
+
+namespace upm {
+  /**
+   * @brief A110X Hall Effect library
+   * @defgroup a110x libupm-a110x
+   * @ingroup seeed gpio electric robok
+   */
+
+  /**
+   * @library a110x
+   * @sensor a110x
+   * @comname A110X Hall Effect Sensor
+   * @altname Grove Hall Sensor
+   * @altid A1101, A1102, A1103, A1004, A1106
+   * @type electric
+   * @man seeed
+   * @web http://www.allegromicro.com/en/Products/Magnetic-Digital-Position-Sensor-ICs/Hall-Effect-Unipolar-Switches/A1101-2-3-4-6.aspx
+   * @con gpio
+   * @kit robok
+   *
+   * @brief API for the A110X Hall Effect sensors
+   *
+   * UPM module for the A110X (A1101, A1102, A1103, A1104, and A1106)
+   * Hall Effect sensors.  It outputs a digital signal indicating
+   * whether it is detecting a magnetic field with south polarity
+   * perpendicular to the sensor element.
+   *
+   * @image html a110x.jpg
+   * An example showing a simple test for the presence of a field
+   * @snippet a110x.cxx Interesting
+   * An example demonstrating the use of an interrupt handler to count pulses
+   * @snippet a110x-intr.cxx Interesting
+   */
+  class A110X {
+  public:
+    /**
+     * A110x digital sensor constructor
+     *
+     * @param pin Digital pin to use
+     */
+    A110X(int pin);
+    /**
+     * A110X destructor
+     */
+    ~A110X();
+    /**
+     * Determines whether a magnetic field of south polarity has been detected
+     *
+     * @return True if magnetic field detected
+     */
+    bool magnetDetected();
+
+    /**
+     * Installs an interrupt service routine (ISR) to be called when
+     * the appropriate magnetic field is detected
+     *
+     * @param fptr Pointer to a function to be called on interrupt
+     * @param arg Pointer to an object to be supplied as an
+     * argument to the ISR.
+     */
+#if defined(SWIGJAVA) || defined(JAVACALLBACK)
+    void installISR(jobject runnable);
+#else
+    void installISR(void (*isr)(void *), void *arg);
+#endif
+    /**
+     * Uninstalls the previously installed ISR
+     *
+     */
+    void uninstallISR();
+
+  private:
+#if defined(SWIGJAVA) || defined(JAVACALLBACK)
+    void installISR(void (*isr)(void *), void *arg);
+#endif
+
+    bool m_isrInstalled;
+    mraa_gpio_context m_gpio;
+  };
+}
+
+