upm/src/ims/ims.cxx

/*
 * Author: Noel Eck <noel.eck@intel.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 <stdexcept>

#include "ims.hpp"

using namespace upm;

IMS::IMS(int16_t i2c_bus, int16_t i2c_address) :
    _dev(ims_init(i2c_bus, i2c_address))
{
    if (_dev == NULL)
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": failed to initialize sensor, check syslog");
}

uint16_t IMS::get_version()
{
    uint16_t retval;
    if (ims_get_version(_dev, &retval) != UPM_SUCCESS)
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_get_version command failed");
    return retval;
}

uint16_t IMS::get_moisture()
{
    uint16_t retval;
    if (ims_get_moisture(_dev, &retval) != UPM_SUCCESS)
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_get_moisture command failed");
    return retval;
}

uint16_t IMS::get_light()
{
    uint16_t retval;
    if (ims_get_light(_dev, &retval) != UPM_SUCCESS)
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_get_light command failed");
    return retval;
}

float IMS::get_temperature()
{
    uint16_t retval;
    if (ims_get_temperature(_dev, &retval) != UPM_SUCCESS)
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_get_temperature command failed");
    return static_cast<float>(retval)/10.0;
}

void IMS::reset_i2c_address(uint8_t address_new)
{
    if (ims_reset_i2c_address(_dev, address_new) != UPM_SUCCESS)
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": reset_i2c_address command failed");
}

void IMS::reset()
{
    if ( ims_write(_dev, IMS_RESET, 1) != UPM_SUCCESS )
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_write command failed");
}

uint16_t IMS::read(IMS_RD_COMMAND cmd)
{
    uint16_t retval;
    if (ims_read(_dev, cmd, &retval) != UPM_SUCCESS)
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_read command failed");
    return retval;
}

void IMS::write(IMS_WR_COMMAND cmd, uint8_t value)
{
    if ( ims_write(_dev, cmd, value) != UPM_SUCCESS )
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_write command failed");
}

void IMS::sleep()
{
    if ( ims_sleep(_dev) != UPM_SUCCESS )
        throw std::runtime_error(std::string(__FUNCTION__) +
                ": ims_sleep command failed");
}