<?php
/*********************************************************************
 *
 * $Id: yocto_led.php 19611 2015-03-05 10:40:15Z seb $
 *
 * Implements YLed, the high-level API for Led functions
 *
 * - - - - - - - - - License information: - - - - - - - - - 
 *
 *  Copyright (C) 2011 and beyond by Yoctopuce Sarl, Switzerland.
 *
 *  Yoctopuce Sarl (hereafter Licensor) grants to you a perpetual
 *  non-exclusive license to use, modify, copy and integrate this
 *  file into your software for the sole purpose of interfacing
 *  with Yoctopuce products.
 *
 *  You may reproduce and distribute copies of this file in
 *  source or object form, as long as the sole purpose of this
 *  code is to interface with Yoctopuce products. You must retain
 *  this notice in the distributed source file.
 *
 *  You should refer to Yoctopuce General Terms and Conditions
 *  for additional information regarding your rights and
 *  obligations.
 *
 *  THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT
 *  WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING 
 *  WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO
 *  EVENT SHALL LICENSOR BE LIABLE FOR ANY INCIDENTAL, SPECIAL,
 *  INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA,
 *  COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR 
 *  SERVICES, ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT 
 *  LIMITED TO ANY DEFENSE THEREOF), ANY CLAIMS FOR INDEMNITY OR
 *  CONTRIBUTION, OR OTHER SIMILAR COSTS, WHETHER ASSERTED ON THE
 *  BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE), BREACH OF
 *  WARRANTY, OR OTHERWISE.
 *
 *********************************************************************/

//--- (YLed return codes)
//--- (end of YLed return codes)
//--- (YLed definitions)
if(!defined('Y_POWER_OFF'))                  define('Y_POWER_OFF',                 0);
if(!defined('Y_POWER_ON'))                   define('Y_POWER_ON',                  1);
if(!defined('Y_POWER_INVALID'))              define('Y_POWER_INVALID',             -1);
if(!defined('Y_BLINKING_STILL'))             define('Y_BLINKING_STILL',            0);
if(!defined('Y_BLINKING_RELAX'))             define('Y_BLINKING_RELAX',            1);
if(!defined('Y_BLINKING_AWARE'))             define('Y_BLINKING_AWARE',            2);
if(!defined('Y_BLINKING_RUN'))               define('Y_BLINKING_RUN',              3);
if(!defined('Y_BLINKING_CALL'))              define('Y_BLINKING_CALL',             4);
if(!defined('Y_BLINKING_PANIC'))             define('Y_BLINKING_PANIC',            5);
if(!defined('Y_BLINKING_INVALID'))           define('Y_BLINKING_INVALID',          -1);
if(!defined('Y_LUMINOSITY_INVALID'))         define('Y_LUMINOSITY_INVALID',        YAPI_INVALID_UINT);
//--- (end of YLed definitions)

//--- (YLed declaration)
/**
 * YLed Class: Led function interface
 *
 * Yoctopuce application programming interface
 * allows you not only to drive the intensity of the led, but also to
 * have it blink at various preset frequencies.
 */
class YLed extends YFunction
{
    const POWER_OFF                      = 0;
    const POWER_ON                       = 1;
    const POWER_INVALID                  = -1;
    const LUMINOSITY_INVALID             = YAPI_INVALID_UINT;
    const BLINKING_STILL                 = 0;
    const BLINKING_RELAX                 = 1;
    const BLINKING_AWARE                 = 2;
    const BLINKING_RUN                   = 3;
    const BLINKING_CALL                  = 4;
    const BLINKING_PANIC                 = 5;
    const BLINKING_INVALID               = -1;
    //--- (end of YLed declaration)

    //--- (YLed attributes)
    protected $_power                    = Y_POWER_INVALID;              // OnOff
    protected $_luminosity               = Y_LUMINOSITY_INVALID;         // Percent
    protected $_blinking                 = Y_BLINKING_INVALID;           // Blink
    //--- (end of YLed attributes)

    function __construct($str_func)
    {
        //--- (YLed constructor)
        parent::__construct($str_func);
        $this->_className = 'Led';

        //--- (end of YLed constructor)
    }

    //--- (YLed implementation)

    function _parseAttr($name, $val)
    {
        switch($name) {
        case 'power':
            $this->_power = intval($val);
            return 1;
        case 'luminosity':
            $this->_luminosity = intval($val);
            return 1;
        case 'blinking':
            $this->_blinking = intval($val);
            return 1;
        }
        return parent::_parseAttr($name, $val);
    }

    /**
     * Returns the current led state.
     *
     * @return either Y_POWER_OFF or Y_POWER_ON, according to the current led state
     *
     * On failure, throws an exception or returns Y_POWER_INVALID.
     */
    public function get_power()
    {
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$defaultCacheValidity) != YAPI_SUCCESS) {
                return Y_POWER_INVALID;
            }
        }
        return $this->_power;
    }

    /**
     * Changes the state of the led.
     *
     * @param newval : either Y_POWER_OFF or Y_POWER_ON, according to the state of the led
     *
     * @return YAPI_SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_power($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("power",$rest_val);
    }

    /**
     * Returns the current led intensity (in per cent).
     *
     * @return an integer corresponding to the current led intensity (in per cent)
     *
     * On failure, throws an exception or returns Y_LUMINOSITY_INVALID.
     */
    public function get_luminosity()
    {
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$defaultCacheValidity) != YAPI_SUCCESS) {
                return Y_LUMINOSITY_INVALID;
            }
        }
        return $this->_luminosity;
    }

    /**
     * Changes the current led intensity (in per cent).
     *
     * @param newval : an integer corresponding to the current led intensity (in per cent)
     *
     * @return YAPI_SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_luminosity($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("luminosity",$rest_val);
    }

    /**
     * Returns the current led signaling mode.
     *
     * @return a value among Y_BLINKING_STILL, Y_BLINKING_RELAX, Y_BLINKING_AWARE, Y_BLINKING_RUN,
     * Y_BLINKING_CALL and Y_BLINKING_PANIC corresponding to the current led signaling mode
     *
     * On failure, throws an exception or returns Y_BLINKING_INVALID.
     */
    public function get_blinking()
    {
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$defaultCacheValidity) != YAPI_SUCCESS) {
                return Y_BLINKING_INVALID;
            }
        }
        return $this->_blinking;
    }

    /**
     * Changes the current led signaling mode.
     *
     * @param newval : a value among Y_BLINKING_STILL, Y_BLINKING_RELAX, Y_BLINKING_AWARE, Y_BLINKING_RUN,
     * Y_BLINKING_CALL and Y_BLINKING_PANIC corresponding to the current led signaling mode
     *
     * @return YAPI_SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_blinking($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("blinking",$rest_val);
    }

    /**
     * Retrieves a led for a given identifier.
     * The identifier can be specified using several formats:
     * <ul>
     * <li>FunctionLogicalName</li>
     * <li>ModuleSerialNumber.FunctionIdentifier</li>
     * <li>ModuleSerialNumber.FunctionLogicalName</li>
     * <li>ModuleLogicalName.FunctionIdentifier</li>
     * <li>ModuleLogicalName.FunctionLogicalName</li>
     * </ul>
     *
     * This function does not require that the led is online at the time
     * it is invoked. The returned object is nevertheless valid.
     * Use the method YLed.isOnline() to test if the led is
     * indeed online at a given time. In case of ambiguity when looking for
     * a led by logical name, no error is notified: the first instance
     * found is returned. The search is performed first by hardware name,
     * then by logical name.
     *
     * @param func : a string that uniquely characterizes the led
     *
     * @return a YLed object allowing you to drive the led.
     */
    public static function FindLed($func)
    {
        // $obj                    is a YLed;
        $obj = YFunction::_FindFromCache('Led', $func);
        if ($obj == null) {
            $obj = new YLed($func);
            YFunction::_AddToCache('Led', $func, $obj);
        }
        return $obj;
    }

    public function power()
    { return $this->get_power(); }

    public function setPower($newval)
    { return $this->set_power($newval); }

    public function luminosity()
    { return $this->get_luminosity(); }

    public function setLuminosity($newval)
    { return $this->set_luminosity($newval); }

    public function blinking()
    { return $this->get_blinking(); }

    public function setBlinking($newval)
    { return $this->set_blinking($newval); }

    /**
     * Continues the enumeration of leds started using yFirstLed().
     *
     * @return a pointer to a YLed object, corresponding to
     *         a led currently online, or a null pointer
     *         if there are no more leds to enumerate.
     */
    public function nextLed()
    {   $resolve = YAPI::resolveFunction($this->_className, $this->_func);
        if($resolve->errorType != YAPI_SUCCESS) return null;
        $next_hwid = YAPI::getNextHardwareId($this->_className, $resolve->result);
        if($next_hwid == null) return null;
        return yFindLed($next_hwid);
    }

    /**
     * Starts the enumeration of leds currently accessible.
     * Use the method YLed.nextLed() to iterate on
     * next leds.
     *
     * @return a pointer to a YLed object, corresponding to
     *         the first led currently online, or a null pointer
     *         if there are none.
     */
    public static function FirstLed()
    {   $next_hwid = YAPI::getFirstHardwareId('Led');
        if($next_hwid == null) return null;
        return self::FindLed($next_hwid);
    }

    //--- (end of YLed implementation)

};

//--- (Led functions)

/**
 * Retrieves a led for a given identifier.
 * The identifier can be specified using several formats:
 * <ul>
 * <li>FunctionLogicalName</li>
 * <li>ModuleSerialNumber.FunctionIdentifier</li>
 * <li>ModuleSerialNumber.FunctionLogicalName</li>
 * <li>ModuleLogicalName.FunctionIdentifier</li>
 * <li>ModuleLogicalName.FunctionLogicalName</li>
 * </ul>
 *
 * This function does not require that the led is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YLed.isOnline() to test if the led is
 * indeed online at a given time. In case of ambiguity when looking for
 * a led by logical name, no error is notified: the first instance
 * found is returned. The search is performed first by hardware name,
 * then by logical name.
 *
 * @param func : a string that uniquely characterizes the led
 *
 * @return a YLed object allowing you to drive the led.
 */
function yFindLed($func)
{
    return YLed::FindLed($func);
}

/**
 * Starts the enumeration of leds currently accessible.
 * Use the method YLed.nextLed() to iterate on
 * next leds.
 *
 * @return a pointer to a YLed object, corresponding to
 *         the first led currently online, or a null pointer
 *         if there are none.
 */
function yFirstLed()
{
    return YLed::FirstLed();
}

//--- (end of Led functions)
?>