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/ssd1351/ssd1351.hpp

@@ -0,0 +1,194 @@
+/*
+ * Author: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
+ * Copyright (c) 2016 Intel Corporation.
+ *
+ * Based on Adafruit SSD1351 library.
+ *
+ * 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/common.hpp>
+#include <mraa/gpio.hpp>
+#include <mraa/spi.hpp>
+#include "ssd1351_gfx.hpp"
+
+// Display Size
+#define SSD1351WIDTH 128
+#define SSD1351HEIGHT 128  // Set this to 96 for 1.27"
+
+// SSD1351 Commands
+#define SSD1351_CMD_SETCOLUMN       0x15
+#define SSD1351_CMD_SETROW          0x75
+#define SSD1351_CMD_WRITERAM        0x5C
+#define SSD1351_CMD_READRAM         0x5D
+#define SSD1351_CMD_SETREMAP        0xA0
+#define SSD1351_CMD_STARTLINE       0xA1
+#define SSD1351_CMD_DISPLAYOFFSET   0xA2
+#define SSD1351_CMD_DISPLAYALLOFF   0xA4
+#define SSD1351_CMD_DISPLAYALLON    0xA5
+#define SSD1351_CMD_NORMALDISPLAY   0xA6
+#define SSD1351_CMD_INVERTDISPLAY   0xA7
+#define SSD1351_CMD_FUNCTIONSELECT  0xAB
+#define SSD1351_CMD_DISPLAYOFF      0xAE
+#define SSD1351_CMD_DISPLAYON       0xAF
+#define SSD1351_CMD_PRECHARGE       0xB1
+#define SSD1351_CMD_DISPLAYENHANCE  0xB2
+#define SSD1351_CMD_CLOCKDIV        0xB3
+#define SSD1351_CMD_SETVSL          0xB4
+#define SSD1351_CMD_SETGPIO         0xB5
+#define SSD1351_CMD_PRECHARGE2      0xB6
+#define SSD1351_CMD_SETGRAY         0xB8
+#define SSD1351_CMD_USELUT          0xB9
+#define SSD1351_CMD_PRECHARGELEVEL  0xBB
+#define SSD1351_CMD_VCOMH           0xBE
+#define SSD1351_CMD_CONTRASTABC     0xC1
+#define SSD1351_CMD_CONTRASTMASTER  0xC7
+#define SSD1351_CMD_MUXRATIO        0xCA
+#define SSD1351_CMD_COMMANDLOCK     0xFD
+#define SSD1351_CMD_HORIZSCROLL     0x96
+#define SSD1351_CMD_STOPSCROLL      0x9E
+#define SSD1351_CMD_STARTSCROLL     0x9F
+
+#define HIGH                1
+#define LOW                 0
+
+// Number of blocks for SPI transfer of buffer
+#define BLOCKS              8
+
+namespace upm {
+/**
+ * @brief SSD1351 OLED library
+ * @defgroup ssd1351 libupm-ssd1351
+ * @ingroup adafruit spi display
+ */
+/**
+ * @library ssd1351
+ * @sensor ssd1351
+ * @comname SSD1351 OLED
+ * @type display
+ * @man adafruit
+ * @web http://www.adafruit.com/products/1431
+ * @con spi
+ *
+ * @brief API for SSD1351 OLED displays
+ *
+ * This module defines the interface for the SSD1351 display library. It was
+ * tested with the Adafruit 1.5" OLED Display, but should work with any SSD1351
+ * display running in SPI mode.
+ *
+ * On the Intel Edison don't forget to disable SPI Power Management (PM) for
+ * this driver to work, you can find more details on this topic here:
+ * http://iotdk.intel.com/docs/master/mraa/edison.html
+ *
+ * @image html ssd1351.jpg
+ * @snippet ssd1351.cxx Interesting
+ */
+class SSD1351 : public GFX{
+    public:
+        /**
+         * Instantiates an SSD1351 object
+         *
+         * @param oc LCD chip select pin
+         * @param dc Data/command pin
+         * @param rst Reset pin
+         */
+        SSD1351 (uint8_t oc, uint8_t dc, uint8_t rst);
+
+        /**
+         * SSD1351 object destructor
+         */
+        ~SSD1351();
+
+        /**
+         * Returns the name of the component
+         */
+        std::string name()
+        {
+            return m_name;
+        }
+
+        /**
+         * Sends a command to an SPI bus
+         *
+         * @param value Command
+         */
+        void writeCommand (uint8_t value);
+
+        /**
+         * Sends data to an SPI bus
+         *
+         * @param value Data
+         */
+        void writeData (uint8_t value);
+        /**
+         * Sends a pixel color (RGB) to the display buffer or chip
+         *
+         * @param x Axis on the horizontal scale
+         * @param y Axis on the vertical scale
+         * @param color RGB (16-bit) color (R[0-4], G[5-10], B[11-15])
+         */
+        void drawPixel (int16_t x, int16_t y, uint16_t color);
+
+        /**
+         * Copies the buffer to the chip via the SPI bus
+         */
+        void refresh ();
+
+        /**
+         * Set OLED chip select LOW
+         */
+        void ocLow ();
+
+        /**
+         * Set OLED chip select HIGH
+         */
+        void ocHigh ();
+
+        /**
+         * Data select LOW
+         */
+        void dcLow ();
+
+        /**
+         * Data select HIGH
+         */
+        void dcHigh ();
+
+        /**
+         * Use memory mapped (buffered) writes to the display
+         *
+         * @param var true for yes (default), false for no
+         */
+        void useMemoryMap (bool var);
+    private:
+        mraa::Spi       m_spi;
+        uint8_t         m_map[SSD1351HEIGHT * SSD1351WIDTH * 2]; /**< Screen buffer */
+        bool            m_usemap;
+
+        mraa::Gpio      m_oc;
+        mraa::Gpio      m_dc;
+        mraa::Gpio      m_rst;
+
+        std::string     m_name;
+};
+}