bmpx8x: rename gy65 to bmpx8x to more properly reflect supported chips

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

src/bmpx8x/bmpx8x.h

@@ -0,0 +1,170 @@
+/*
+ * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
+ * Contributions: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * Credits to Adafruit.
+ * Based on Adafruit BMP085 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/i2c.h>
+#include <math.h>
+
+#define ADDR               0x77 // device address
+
+// registers address
+#define BMP085_ULTRALOWPOWER 0
+#define BMP085_STANDARD      1
+#define BMP085_HIGHRES       2
+#define BMP085_ULTRAHIGHRES  3
+#define BMP085_CAL_AC1           0xAA  // R   Calibration data (16 bits)
+#define BMP085_CAL_AC2           0xAC  // R   Calibration data (16 bits)
+#define BMP085_CAL_AC3           0xAE  // R   Calibration data (16 bits)
+#define BMP085_CAL_AC4           0xB0  // R   Calibration data (16 bits)
+#define BMP085_CAL_AC5           0xB2  // R   Calibration data (16 bits)
+#define BMP085_CAL_AC6           0xB4  // R   Calibration data (16 bits)
+#define BMP085_CAL_B1            0xB6  // R   Calibration data (16 bits)
+#define BMP085_CAL_B2            0xB8  // R   Calibration data (16 bits)
+#define BMP085_CAL_MB            0xBA  // R   Calibration data (16 bits)
+#define BMP085_CAL_MC            0xBC  // R   Calibration data (16 bits)
+#define BMP085_CAL_MD            0xBE  // R   Calibration data (16 bits)
+
+#define BMP085_CONTROL           0xF4
+#define BMP085_TEMPDATA          0xF6
+#define BMP085_PRESSUREDATA      0xF6
+#define BMP085_READTEMPCMD       0x2E
+#define BMP085_READPRESSURECMD   0x34
+
+#define HIGH               1
+#define LOW                0
+
+namespace upm {
+
+/**
+ * @brief C++ API for GY65/BMP085 and BMP180 chips (Atmospheric Pressure Sensor)
+ *
+ * The Bosch GY65/BMP085 and BMP180 are high precision, ultra-low
+ * power consumption pressure sensors. They have a range of between
+ * 30,000 and 110,000 Pa.
+ *
+ * This module has been tested on the GY65/BMP085 and BMP180 sensors.
+ *
+ * @ingroup bmpx8x i2c
+ * @defgroup bmpx8x libupm-bmpx8x
+ * @snippet bmpx8x.cxx Interesting
+ * @image html bmp085.jpeg
+ */
+class BMPX8X {
+    public:
+        /**
+         * Instanciates a BMPX8X object
+         *
+         * @param bus number of used bus
+         * @param devAddr address of used i2c device
+         * @param mode BMP085 mode
+         */
+        BMPX8X (int bus, int devAddr=0x77, uint8_t mode=BMP085_ULTRAHIGHRES);
+
+        /**
+         * BMPX8X object destructor, basicaly it close i2c connection.
+         */
+        ~BMPX8X ();
+
+        /**
+         * Return calculated pressure
+         */
+        int32_t getPressure ();
+
+        /**
+         *
+         * Get raw pressure data
+         */
+        int32_t getPressureRaw ();
+
+        /**
+         * Get raw temperature data from chip
+         */
+        int16_t getTemperatureRaw ();
+
+        /**
+         * Return calculated temperature
+         */
+        float getTemperature ();
+
+        /**
+         * With given absolute altitude sea level can be calculated
+         *
+         * @param altitudeMeters altitude
+         */
+        int32_t getSealevelPressure(float altitudeMeters = 0);
+
+        /**
+         * With given sea level altitude in meters can be calculated
+         *
+         * @param sealevelPressure Sea level
+         */
+        float getAltitude (float sealevelPressure = 101325);
+
+        /**
+         * Calculation of B5 (check spec for more information)
+         *
+         * @param UT
+         */
+        int32_t computeB5 (int32_t UT);
+
+        /**
+         * Read two bytes register
+         *
+         * @param reg address of a register
+         */
+        uint16_t i2cReadReg_16 (int reg);
+
+        /**
+         * Write to one byte register
+         *
+         * @param reg address of a register
+         * @param value byte to be written
+         */
+        mraa_result_t i2cWriteReg (uint8_t reg, uint8_t value);
+
+        /**
+         * Read one byte register
+         *
+         * @param reg address of a register
+         */
+        uint8_t i2cReadReg_8 (int reg);
+
+    private:
+        std::string m_name;
+
+        int m_controlAddr;
+        int m_bus;
+        mraa_i2c_context m_i2ControlCtx;
+
+        uint8_t oversampling;
+        int16_t ac1, ac2, ac3, b1, b2, mb, mc, md;
+        uint16_t ac4, ac5, ac6;
+};
+
+}