<?php
/**
 * pitemp sensor class
 *
 * PHP version 5
 *
 * @category  PHP
 * @package   PSI_Sensor
 * @author    Marc Hillesheim <hawkeyexp@gmail.com>
 * @copyright 2012 phpSysInfo
 * @license   http://opensource.org/licenses/gpl-2.0.php GNU General Public License version 2, or (at your option) any later version
 * @version   Release: 3.0
 * @link      http://phpsysinfo.sourceforge.net
 */
class PiTemp extends Sensors
{
    private function _temperature()
    {
        $temp = null;
        $temp_max = null;
        if (!CommonFunctions::rfts('/sys/devices/platform/sunxi-i2c.0/i2c-0/0-0034/temp1_input', $temp, 1, 4096, false)) { // Not Banana Pi
            CommonFunctions::rfts('/sys/class/thermal/thermal_zone0/temp', $temp, 1);
            CommonFunctions::rfts('/sys/class/thermal/thermal_zone0/trip_point_0_temp', $temp_max, 1, 4096, PSI_DEBUG);
        }
        if (($temp !== null) && (($temp = trim($temp)) != "")) {
            $dev = new SensorDevice();
            $dev->setName("CPU 1");
            $dev->setValue($temp / 1000);
            if (($temp_max !== null) && (($temp_max = trim($temp_max)) != "") && ($temp_max > 0)) {
                $dev->setMax($temp_max / 1000);
            }
            $this->mbinfo->setMbTemp($dev);
        }
    }

    private function _voltage()
    {
        $volt = null;
        if (CommonFunctions::rfts('/sys/devices/platform/sunxi-i2c.0/i2c-0/0-0034/axp20-supplyer.28/power_supply/ac/voltage_now', $volt, 1, 4096, false) && ($volt !== null) && (($volt = trim($volt)) != "")) { // Banana Pi
            $dev = new SensorDevice();
            $dev->setName("Voltage 1");
            $dev->setValue($volt / 1000000);
            $this->mbinfo->setMbVolt($dev);
        }
    }

    private function _current()
    {
        $current = null;
        if (CommonFunctions::rfts('/sys/devices/platform/sunxi-i2c.0/i2c-0/0-0034/axp20-supplyer.28/power_supply/ac/current_now', $current, 1, 4096, false) && ($current !== null) && (($current = trim($current)) != "")) { // Banana Pi
            $dev = new SensorDevice();
            $dev->setName("Current 1");
            $dev->setValue($current / 1000000);
            $this->mbinfo->setMbCurrent($dev);
        }
    }

    public function build()
    {
        if ((PSI_OS == 'Linux') && !defined('PSI_EMU_HOSTNAME')) {
            $this->_temperature();
            $this->_voltage();
            $this->_current();
        }
    }
}