/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2016-2017 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 <vector>

#include "bma250e.hpp"
#include "bmm150.hpp"

#define BMC150_DEFAULT_BUS 0
#define BMC150_DEFAULT_ACC_ADDR 0x10
#define BMC150_DEFAULT_MAG_ADDR 0x12

namespace upm {

    /**
     * @library bmx055
     * @sensor bmc150
     * @comname 6-axis Ecompass
     * @type accelerometer compass
     * @man bosch
     * @con i2c gpio spi
     * @web http://www.bosch-sensortec.com/en/bst/products/all_products/homepage_1_ohne_marginalspalte_52
     *
     * @brief API for the BMC150 6-axis eCompass
     *
     *
     * The BMC150 is an integrated electronic compass solution for
     * consumer market applications. It comprises a 12bit leading edge
     * triaxial, low-g acceleration sensor and an ultra-low power, high
     * precision triaxial magnetic field sensor. It allows measurements
     * of acceleration and magnetic field in three perpendicular
     * axes. Performance and features of both sensing technologies are
     * carefully tuned and perfectly match the demanding requirements of
     * all 6-axis mobile applications such as electronic compass,
     * navigation or augmented reality.

     * The BMC150 is essentially 2 separate devices in one: the BMA250E
     * Accelerometer and the BMM150 Magnetometer.  They are completely
     * independent of each other.
     *
     * This driver provides a very simple interface to these 2 devices.
     * If finer control is desired, you should just use the separate
     * BMA25E and BMM150 device classes directly.  This driver simply
     * initializes both devices, and provides a mechanism to read
     * accelerometer and magnetometer data from them.
     *
     * @snippet bmx055-bmc150.cxx Interesting
     */

    class BMC150 {
    public:
        /**
         * BMC150 constructor.
         *
         * This device can support both I2C and SPI. For SPI, set the addr
         * to -1, and specify a positive integer representing the Chip
         * Select (CS) pin for the cs argument.  If you are using a
         * hardware CS pin (like edison with arduino breakout), then you
         * can connect the proper pin to the hardware CS pin on your MCU
         * and supply -1 for cs.  The default operating mode is I2C.
         *
         * @param accelBus I2C or SPI bus to use. -1 to skip initializing
         * this device.
         * @param accelAddr The address for this device.  -1 for SPI.
         * @param accelCS The gpio pin to use for the SPI Chip Select.  -1 for
         * I2C or for SPI with a hardware controlled pin.
         * @param magBus I2C or SPI bus to use. -1 to skip initializing
         * this device.
         * @param magAddr The address for this device.  -1 for SPI.
         * @param magCS The gpio pin to use for the SPI Chip Select.  -1 for
         * I2C or for SPI with a hardware controlled pin.
         */
        BMC150(int accelBus=BMC150_DEFAULT_BUS,
               int accelAddr=BMC150_DEFAULT_ACC_ADDR,
               int accelCS=-1,
               int magBus=BMC150_DEFAULT_BUS,
               int magAddr=BMC150_DEFAULT_MAG_ADDR,
               int magCS=-1);

        /**
         * BMC150 Destructor.
         */
        ~BMC150();

        /**
         * Update the internal stored values from sensor data.
         */
        void update();

        /**
         * Initialize the accelerometer and start operation.  This
         * function is called from the constructor so will not typically
         * need to be called by a user unless the device is reset or you
         * want to change these values.
         *
         * @param pwr One of the BMA250E_POWER_MODE_T values.  The default is
         * BMA250E_POWER_MODE_NORMAL.
         * @param range One of the BMA250E_RANGE_T values.  The default is
         * BMA250E_RANGE_2G.
         * @param bw One of the filtering BMA250E_BW_T values.  The default is
         * BMA250E_BW_250.
         */
        void initAccelerometer(
            BMA250E_POWER_MODE_T pwr=BMA250E_POWER_MODE_NORMAL,
            BMA250E_RANGE_T range=BMA250E_RANGE_2G,
            BMA250E_BW_T bw=BMA250E_BW_250);

        /**
         * Initialize the magnetometer and start operation.  This function
         * is called from the constructor so will not typically need to be
         * called by a user unless the device is reset or you want to
         * change these values.  This method will call
         * BMM150::setPresetMode() with the passed parameter.
         *
         * @param usage One of the BMM150_USAGE_PRESETS_T values.
         * The default is BMM150_USAGE_HIGH_ACCURACY.
         */
        void initMagnetometer(
            BMM150_USAGE_PRESETS_T usage=BMM150_USAGE_HIGH_ACCURACY);

        /**
         * Return accelerometer data in gravities.  update() must have
         * been called prior to calling this method.
         *
         * @param x Pointer to a floating point value that will have the
         * current x component placed into it.
         * @param y Pointer to a floating point value that will have the
         * current y component placed into it.
         * @param z Pointer to a floating point value that will have the
         * current z component placed into it.
         */
        void getAccelerometer(float *x, float *y, float *z);

        /**
         * Return accelerometer data in gravities in the form of a
         * floating point vector.  update() must have been called
         * prior to calling this method.
         *
         * @return A floating point vector containing x, y, and z in
         * that order.
         */
        std::vector<float> getAccelerometer();

        /**
         * Return magnetometer data in micro-Teslas (uT).  update() must
         * have been called prior to calling this method.
         *
         * @param x Pointer to a floating point value that will have the
         * current x component placed into it.
         * @param y Pointer to a floating point value that will have the
         * current y component placed into it.
         * @param z Pointer to a floating point value that will have the
         * current z component placed into it.
         */
        void getMagnetometer(float *x, float *y, float *z);

        /**
         * Return magnetometer data in micro-Teslas (uT) in the form
         * of a floating point vector.  update() must have been called
         * prior to calling this method.
         *
         * @return A floating point vector containing x, y, and z in
         * that order.
         */
        std::vector<float> getMagnetometer();


    protected:
        BMA250E *m_accel;
        BMM150 *m_mag;

    private:
        /* Disable implicit copy and assignment operators */
        BMC150(const BMC150&) = delete;
        BMC150 &operator=(const BMC150&) = delete;
    };
}
