File content as of revision 2:50cb56828ab9:

/*
 * Copyright (c) 2006-2013 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef __GROVE_COLOUR_SENSOR_H__
#define __GROVE_COLOUR_SENSOR_H__

#include "mbed.h"

struct RGBC_Sample {
    uint16_t red, green, blue, clear;
};

union RGBC {
    RGBC_Sample ch;
    uint16_t data[4];
};

class GroveColourSensor {
public:
    enum Colour_t {
        GREEN = 0,
        RED,
        BLUE,
        CLEAR,
        NUM_COLORS
    };        

    GroveColourSensor(I2C *i2c);
    bool powerUp(void);
    void powerDown(void);
    void setGain(uint8_t gain);
    uint16_t readColour(Colour_t colour);
    void setBlockRead();
    void readBlock(RGBC *sample);
    uint16_t readColour(unsigned colour);

private:
    static const uint8_t SEVEN_BIT_ADDRESS = 0x39;
    I2C *i2c;
    
    uint16_t bytesTo16bit(char lowByte, char highByte);
};

#endif /* #ifndef __GROVE_COLOUR_SENSOR_H__ */