groveo2: initial implementation

This implements support for the Grove O2 (oxygen) sensor.

Keeping with the current convention, as well as the current
config Doxygen uses disallowing uppercase names, this sensor
has been renamed from groveO2 to groveo2 for both files and
folders.

Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>

src/groveo2/CMakeLists.txt

@@ -0,0 +1,5 @@
+set (libname "groveo2")
+set (libdescription "upm groveO2 oxygen concentration sensor module")
+set (module_src ${libname}.cxx)
+set (module_h ${libname}.h)
+upm_module_init()

src/groveo2/groveo2.cxx

@@ -0,0 +1,52 @@
+/*
+ * Author: Zion Orent <zorent@ics.com>
+ * Copyright (c) 2015 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 <iostream>
+
+#include "groveo2.h"
+
+using namespace upm;
+using namespace std;
+
+GroveO2::GroveO2(int pin)
+{
+    if ( !(m_aio = mraa_aio_init(pin)) )
+    {
+      cerr << __FUNCTION__ << ": mraa_aio_init() failed" << endl;
+      return;
+    }
+}
+
+GroveO2::~GroveO2()
+{
+  mraa_aio_close(m_aio);
+}
+
+float GroveO2::voltageValue()
+{
+	int val = mraa_aio_read(m_aio);
+	float sensorVoltage = (val/1024.0) * 5.0;
+	sensorVoltage = (sensorVoltage/201.0) * 1000.0;
+	return sensorVoltage;
+}

src/groveo2/groveo2.h

@@ -0,0 +1,66 @@
+/*
+ * Author: Zion Orent <zorent@ics.com>
+ * Copyright (c) 2015 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/aio.h>
+
+namespace upm {
+    /**
+     * @brief UPM module for the GroveO2 Oxygen Gas Sensor
+     * @defgroup groveo2 libupm-groveo2
+    */
+    /**
+     * @brief C++ API for the GroveO2 Oxygen Gas Sensor
+     *
+     * The Grove O2 sensor measures the oxygen concentration in the air
+     * 
+     * @ingroup analog groveo2
+     * @snippet groveo2.cxx Interesting
+    */
+  class GroveO2 {
+  public:
+    /**
+     * GroveO2 sensor constructor
+     *
+     * @param pin analog pin to use
+     */
+    GroveO2(int pin);
+    /**
+     * GroveO2 Destructor
+     */
+    ~GroveO2();
+    /**
+     * Measures O2 from the sensor
+     *
+     * @return the Oxygen concentration as voltage
+     */
+    float voltageValue();
+
+  private:
+    mraa_aio_context m_aio;
+  };
+}
+
+

src/groveo2/jsupm_groveo2.i

@@ -0,0 +1,8 @@
+%module jsupm_groveo2
+%include "../upm.i"
+
+%{
+    #include "groveo2.h"
+%}
+
+%include "groveo2.h"

src/groveo2/pyupm_groveo2.i

@@ -0,0 +1,9 @@
+%module pyupm_groveo2
+%include "../upm.i"
+
+%feature("autodoc", "3");
+
+%include "groveo2.h"
+%{
+    #include "groveo2.h"
+%}