<?php
/*********************************************************************
 *
 *  $Id: yocto_digitalio.php 43580 2021-01-26 17:46:01Z mvuilleu $
 *
 *  Implements YDigitalIO, the high-level API for DigitalIO 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.
 *
 *********************************************************************/

//--- (YDigitalIO return codes)
//--- (end of YDigitalIO return codes)
//--- (YDigitalIO definitions)
if(!defined('Y_OUTPUTVOLTAGE_USB_5V'))       define('Y_OUTPUTVOLTAGE_USB_5V',      0);
if(!defined('Y_OUTPUTVOLTAGE_USB_3V'))       define('Y_OUTPUTVOLTAGE_USB_3V',      1);
if(!defined('Y_OUTPUTVOLTAGE_EXT_V'))        define('Y_OUTPUTVOLTAGE_EXT_V',       2);
if(!defined('Y_OUTPUTVOLTAGE_INVALID'))      define('Y_OUTPUTVOLTAGE_INVALID',     -1);
if(!defined('Y_PORTSTATE_INVALID'))          define('Y_PORTSTATE_INVALID',         YAPI_INVALID_UINT);
if(!defined('Y_PORTDIRECTION_INVALID'))      define('Y_PORTDIRECTION_INVALID',     YAPI_INVALID_UINT);
if(!defined('Y_PORTOPENDRAIN_INVALID'))      define('Y_PORTOPENDRAIN_INVALID',     YAPI_INVALID_UINT);
if(!defined('Y_PORTPOLARITY_INVALID'))       define('Y_PORTPOLARITY_INVALID',      YAPI_INVALID_UINT);
if(!defined('Y_PORTDIAGS_INVALID'))          define('Y_PORTDIAGS_INVALID',         YAPI_INVALID_UINT);
if(!defined('Y_PORTSIZE_INVALID'))           define('Y_PORTSIZE_INVALID',          YAPI_INVALID_UINT);
if(!defined('Y_COMMAND_INVALID'))            define('Y_COMMAND_INVALID',           YAPI_INVALID_STRING);
//--- (end of YDigitalIO definitions)
    #--- (YDigitalIO yapiwrapper)
   #--- (end of YDigitalIO yapiwrapper)

//--- (YDigitalIO declaration)
/**
 * YDigitalIO Class: digital IO port control interface, available for instance in the Yocto-IO or the
 * Yocto-Maxi-IO-V2
 *
 * The YDigitalIO class allows you drive a Yoctopuce digital input/output port.
 * It can be used to setup the direction of each channel, to read the state of each channel
 * and to switch the state of each channel configures as an output.
 * You can work on all channels at once, or one by one. Most functions
 * use a binary representation for channels where bit 0 matches channel #0 , bit 1 matches channel
 * #1 and so on. If you are not familiar with numbers binary representation, you will find more
 * information here: https://en.wikipedia.org/wiki/Binary_number#Representation. It is also possible
 * to automatically generate short pulses of a determined duration. Electrical behavior
 * of each I/O can be modified (open drain and reverse polarity).
 */
class YDigitalIO extends YFunction
{
    const PORTSTATE_INVALID              = YAPI_INVALID_UINT;
    const PORTDIRECTION_INVALID          = YAPI_INVALID_UINT;
    const PORTOPENDRAIN_INVALID          = YAPI_INVALID_UINT;
    const PORTPOLARITY_INVALID           = YAPI_INVALID_UINT;
    const PORTDIAGS_INVALID              = YAPI_INVALID_UINT;
    const PORTSIZE_INVALID               = YAPI_INVALID_UINT;
    const OUTPUTVOLTAGE_USB_5V           = 0;
    const OUTPUTVOLTAGE_USB_3V           = 1;
    const OUTPUTVOLTAGE_EXT_V            = 2;
    const OUTPUTVOLTAGE_INVALID          = -1;
    const COMMAND_INVALID                = YAPI_INVALID_STRING;
    //--- (end of YDigitalIO declaration)

    //--- (YDigitalIO attributes)
    protected $_portState                = Y_PORTSTATE_INVALID;          // BitByte
    protected $_portDirection            = Y_PORTDIRECTION_INVALID;      // BitByte
    protected $_portOpenDrain            = Y_PORTOPENDRAIN_INVALID;      // BitByte
    protected $_portPolarity             = Y_PORTPOLARITY_INVALID;       // BitByte
    protected $_portDiags                = Y_PORTDIAGS_INVALID;          // DigitalIODiags
    protected $_portSize                 = Y_PORTSIZE_INVALID;           // UInt31
    protected $_outputVoltage            = Y_OUTPUTVOLTAGE_INVALID;      // IOVoltage
    protected $_command                  = Y_COMMAND_INVALID;            // Text
    //--- (end of YDigitalIO attributes)

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

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

    //--- (YDigitalIO implementation)

    function _parseAttr($name, $val)
    {
        switch($name) {
        case 'portState':
            $this->_portState = intval($val);
            return 1;
        case 'portDirection':
            $this->_portDirection = intval($val);
            return 1;
        case 'portOpenDrain':
            $this->_portOpenDrain = intval($val);
            return 1;
        case 'portPolarity':
            $this->_portPolarity = intval($val);
            return 1;
        case 'portDiags':
            $this->_portDiags = intval($val);
            return 1;
        case 'portSize':
            $this->_portSize = intval($val);
            return 1;
        case 'outputVoltage':
            $this->_outputVoltage = intval($val);
            return 1;
        case 'command':
            $this->_command = $val;
            return 1;
        }
        return parent::_parseAttr($name, $val);
    }

    /**
     * Returns the digital IO port state as an integer with each bit
     * representing a channel.
     * value 0 = 0b00000000 -> all channels are OFF
     * value 1 = 0b00000001 -> channel #0 is ON
     * value 2 = 0b00000010 -> channel #1 is ON
     * value 3 = 0b00000011 -> channels #0 and #1 are ON
     * value 4 = 0b00000100 -> channel #2 is ON
     * and so on...
     *
     * @return integer : an integer corresponding to the digital IO port state as an integer with each bit
     *         representing a channel
     *
     * On failure, throws an exception or returns YDigitalIO::PORTSTATE_INVALID.
     */
    public function get_portState()
    {
        // $res                    is a int;
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_PORTSTATE_INVALID;
            }
        }
        $res = $this->_portState;
        return $res;
    }

    /**
     * Changes the state of all digital IO port's channels at once: the parameter
     * is an integer where each bit represents a channel, with bit 0 matching channel #0.
     * To set all channels to  0 -> 0b00000000 -> parameter = 0
     * To set channel #0 to 1 -> 0b00000001 -> parameter =  1
     * To set channel #1 to  1 -> 0b00000010 -> parameter = 2
     * To set channel #0 and #1 -> 0b00000011 -> parameter =  3
     * To set channel #2 to 1 -> 0b00000100 -> parameter =  4
     * an so on....
     * Only channels configured as outputs will be affecter, according to the value
     * configured using set_portDirection.
     *
     * @param integer $newval : an integer corresponding to the state of all digital IO port's channels at
     * once: the parameter
     *         is an integer where each bit represents a channel, with bit 0 matching channel #0
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_portState($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("portState",$rest_val);
    }

    /**
     * Returns the I/O direction of all channels of the port (bitmap): 0 makes a bit an input, 1 makes it an output.
     *
     * @return integer : an integer corresponding to the I/O direction of all channels of the port
     * (bitmap): 0 makes a bit an input, 1 makes it an output
     *
     * On failure, throws an exception or returns YDigitalIO::PORTDIRECTION_INVALID.
     */
    public function get_portDirection()
    {
        // $res                    is a int;
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_PORTDIRECTION_INVALID;
            }
        }
        $res = $this->_portDirection;
        return $res;
    }

    /**
     * Changes the I/O direction of all channels of the port (bitmap): 0 makes a bit an input, 1 makes it an output.
     * Remember to call the saveToFlash() method  to make sure the setting is kept after a reboot.
     *
     * @param integer $newval : an integer corresponding to the I/O direction of all channels of the port
     * (bitmap): 0 makes a bit an input, 1 makes it an output
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_portDirection($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("portDirection",$rest_val);
    }

    /**
     * Returns the electrical interface for each bit of the port. For each bit set to 0  the matching I/O
     * works in the regular,
     * intuitive way, for each bit set to 1, the I/O works in reverse mode.
     *
     * @return integer : an integer corresponding to the electrical interface for each bit of the port
     *
     * On failure, throws an exception or returns YDigitalIO::PORTOPENDRAIN_INVALID.
     */
    public function get_portOpenDrain()
    {
        // $res                    is a int;
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_PORTOPENDRAIN_INVALID;
            }
        }
        $res = $this->_portOpenDrain;
        return $res;
    }

    /**
     * Changes the electrical interface for each bit of the port. 0 makes a bit a regular input/output, 1 makes
     * it an open-drain (open-collector) input/output. Remember to call the
     * saveToFlash() method  to make sure the setting is kept after a reboot.
     *
     * @param integer $newval : an integer corresponding to the electrical interface for each bit of the port
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_portOpenDrain($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("portOpenDrain",$rest_val);
    }

    /**
     * Returns the polarity of all the bits of the port.  For each bit set to 0, the matching I/O works the regular,
     * intuitive way; for each bit set to 1, the I/O works in reverse mode.
     *
     * @return integer : an integer corresponding to the polarity of all the bits of the port
     *
     * On failure, throws an exception or returns YDigitalIO::PORTPOLARITY_INVALID.
     */
    public function get_portPolarity()
    {
        // $res                    is a int;
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_PORTPOLARITY_INVALID;
            }
        }
        $res = $this->_portPolarity;
        return $res;
    }

    /**
     * Changes the polarity of all the bits of the port: For each bit set to 0, the matching I/O works the regular,
     * intuitive way; for each bit set to 1, the I/O works in reverse mode.
     * Remember to call the saveToFlash() method  to make sure the setting will be kept after a reboot.
     *
     * @param integer $newval : an integer corresponding to the polarity of all the bits of the port: For
     * each bit set to 0, the matching I/O works the regular,
     *         intuitive way; for each bit set to 1, the I/O works in reverse mode
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_portPolarity($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("portPolarity",$rest_val);
    }

    /**
     * Returns the port state diagnostics (Yocto-IO and Yocto-MaxiIO-V2 only). Bit 0 indicates a shortcut on
     * output 0, etc. Bit 8 indicates a power failure, and bit 9 signals overheating (overcurrent).
     * During normal use, all diagnostic bits should stay clear.
     *
     * @return integer : an integer corresponding to the port state diagnostics (Yocto-IO and Yocto-MaxiIO-V2 only)
     *
     * On failure, throws an exception or returns YDigitalIO::PORTDIAGS_INVALID.
     */
    public function get_portDiags()
    {
        // $res                    is a int;
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_PORTDIAGS_INVALID;
            }
        }
        $res = $this->_portDiags;
        return $res;
    }

    /**
     * Returns the number of bits (i.e. channels)implemented in the I/O port.
     *
     * @return integer : an integer corresponding to the number of bits (i.e
     *
     * On failure, throws an exception or returns YDigitalIO::PORTSIZE_INVALID.
     */
    public function get_portSize()
    {
        // $res                    is a int;
        if ($this->_cacheExpiration == 0) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_PORTSIZE_INVALID;
            }
        }
        $res = $this->_portSize;
        return $res;
    }

    /**
     * Returns the voltage source used to drive output bits.
     *
     * @return integer : a value among YDigitalIO::OUTPUTVOLTAGE_USB_5V, YDigitalIO::OUTPUTVOLTAGE_USB_3V
     * and YDigitalIO::OUTPUTVOLTAGE_EXT_V corresponding to the voltage source used to drive output bits
     *
     * On failure, throws an exception or returns YDigitalIO::OUTPUTVOLTAGE_INVALID.
     */
    public function get_outputVoltage()
    {
        // $res                    is a enumIOVOLTAGE;
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_OUTPUTVOLTAGE_INVALID;
            }
        }
        $res = $this->_outputVoltage;
        return $res;
    }

    /**
     * Changes the voltage source used to drive output bits.
     * Remember to call the saveToFlash() method  to make sure the setting is kept after a reboot.
     *
     * @param integer $newval : a value among YDigitalIO::OUTPUTVOLTAGE_USB_5V,
     * YDigitalIO::OUTPUTVOLTAGE_USB_3V and YDigitalIO::OUTPUTVOLTAGE_EXT_V corresponding to the voltage
     * source used to drive output bits
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_outputVoltage($newval)
    {
        $rest_val = strval($newval);
        return $this->_setAttr("outputVoltage",$rest_val);
    }

    public function get_command()
    {
        // $res                    is a string;
        if ($this->_cacheExpiration <= YAPI::GetTickCount()) {
            if ($this->load(YAPI::$_yapiContext->GetCacheValidity()) != YAPI_SUCCESS) {
                return Y_COMMAND_INVALID;
            }
        }
        $res = $this->_command;
        return $res;
    }

    public function set_command($newval)
    {
        $rest_val = $newval;
        return $this->_setAttr("command",$rest_val);
    }

    /**
     * Retrieves a digital IO port 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 digital IO port is online at the time
     * it is invoked. The returned object is nevertheless valid.
     * Use the method isOnline() to test if the digital IO port is
     * indeed online at a given time. In case of ambiguity when looking for
     * a digital IO port 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.
     *
     * If a call to this object's is_online() method returns FALSE although
     * you are certain that the matching device is plugged, make sure that you did
     * call registerHub() at application initialization time.
     *
     * @param string $func : a string that uniquely characterizes the digital IO port, for instance
     *         YMINIIO0.digitalIO.
     *
     * @return YDigitalIO : a YDigitalIO object allowing you to drive the digital IO port.
     */
    public static function FindDigitalIO($func)
    {
        // $obj                    is a YDigitalIO;
        $obj = YFunction::_FindFromCache('DigitalIO', $func);
        if ($obj == null) {
            $obj = new YDigitalIO($func);
            YFunction::_AddToCache('DigitalIO', $func, $obj);
        }
        return $obj;
    }

    /**
     * Sets a single bit (i.e. channel) of the I/O port.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     * @param integer $bitstate : the state of the bit (1 or 0)
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_bitState($bitno,$bitstate)
    {
        if (!($bitstate >= 0)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid bit state',YAPI_INVALID_ARGUMENT);
        if (!($bitstate <= 1)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid bit state',YAPI_INVALID_ARGUMENT);
        return $this->set_command(sprintf('%c%d',82+$bitstate, $bitno));
    }

    /**
     * Returns the state of a single bit (i.e. channel)  of the I/O port.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     *
     * @return integer : the bit state (0 or 1)
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function get_bitState($bitno)
    {
        // $portVal                is a int;
        $portVal = $this->get_portState();
        return (((($portVal) >> ($bitno))) & (1));
    }

    /**
     * Reverts a single bit (i.e. channel) of the I/O port.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function toggle_bitState($bitno)
    {
        return $this->set_command(sprintf('T%d', $bitno));
    }

    /**
     * Changes  the direction of a single bit (i.e. channel) from the I/O port.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     * @param integer $bitdirection : direction to set, 0 makes the bit an input, 1 makes it an output.
     *         Remember to call the   saveToFlash() method to make sure the setting is kept after a reboot.
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_bitDirection($bitno,$bitdirection)
    {
        if (!($bitdirection >= 0)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid direction',YAPI_INVALID_ARGUMENT);
        if (!($bitdirection <= 1)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid direction',YAPI_INVALID_ARGUMENT);
        return $this->set_command(sprintf('%c%d',73+6*$bitdirection, $bitno));
    }

    /**
     * Returns the direction of a single bit (i.e. channel) from the I/O port (0 means the bit is an
     * input, 1  an output).
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function get_bitDirection($bitno)
    {
        // $portDir                is a int;
        $portDir = $this->get_portDirection();
        return (((($portDir) >> ($bitno))) & (1));
    }

    /**
     * Changes the polarity of a single bit from the I/O port.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0.
     * @param integer $bitpolarity : polarity to set, 0 makes the I/O work in regular mode, 1 makes the
     * I/O  works in reverse mode.
     *         Remember to call the   saveToFlash() method to make sure the setting is kept after a reboot.
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_bitPolarity($bitno,$bitpolarity)
    {
        if (!($bitpolarity >= 0)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid bit polarity',YAPI_INVALID_ARGUMENT);
        if (!($bitpolarity <= 1)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid bit polarity',YAPI_INVALID_ARGUMENT);
        return $this->set_command(sprintf('%c%d',110+4*$bitpolarity, $bitno));
    }

    /**
     * Returns the polarity of a single bit from the I/O port (0 means the I/O works in regular mode, 1
     * means the I/O  works in reverse mode).
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function get_bitPolarity($bitno)
    {
        // $portPol                is a int;
        $portPol = $this->get_portPolarity();
        return (((($portPol) >> ($bitno))) & (1));
    }

    /**
     * Changes  the electrical interface of a single bit from the I/O port.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     * @param integer $opendrain : 0 makes a bit a regular input/output, 1 makes
     *         it an open-drain (open-collector) input/output. Remember to call the
     *         saveToFlash() method to make sure the setting is kept after a reboot.
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function set_bitOpenDrain($bitno,$opendrain)
    {
        if (!($opendrain >= 0)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid state',YAPI_INVALID_ARGUMENT);
        if (!($opendrain <= 1)) return $this->_throw( YAPI_INVALID_ARGUMENT, 'invalid state',YAPI_INVALID_ARGUMENT);
        return $this->set_command(sprintf('%c%d',100-32*$opendrain, $bitno));
    }

    /**
     * Returns the type of electrical interface of a single bit from the I/O port. (0 means the bit is an
     * input, 1  an output).
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     *
     * @return integer :   0 means the a bit is a regular input/output, 1 means the bit is an open-drain
     *         (open-collector) input/output.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function get_bitOpenDrain($bitno)
    {
        // $portOpenDrain          is a int;
        $portOpenDrain = $this->get_portOpenDrain();
        return (((($portOpenDrain) >> ($bitno))) & (1));
    }

    /**
     * Triggers a pulse on a single bit for a specified duration. The specified bit
     * will be turned to 1, and then back to 0 after the given duration.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     * @param integer $ms_duration : desired pulse duration in milliseconds. Be aware that the device time
     *         resolution is not guaranteed up to the millisecond.
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function pulse($bitno,$ms_duration)
    {
        return $this->set_command(sprintf('Z%d,0,%d', $bitno,$ms_duration));
    }

    /**
     * Schedules a pulse on a single bit for a specified duration. The specified bit
     * will be turned to 1, and then back to 0 after the given duration.
     *
     * @param integer $bitno : the bit number; lowest bit has index 0
     * @param integer $ms_delay : waiting time before the pulse, in milliseconds
     * @param integer $ms_duration : desired pulse duration in milliseconds. Be aware that the device time
     *         resolution is not guaranteed up to the millisecond.
     *
     * @return integer : YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    public function delayedPulse($bitno,$ms_delay,$ms_duration)
    {
        return $this->set_command(sprintf('Z%d,%d,%d',$bitno,$ms_delay,$ms_duration));
    }

    public function portState()
    { return $this->get_portState(); }

    public function setPortState($newval)
    { return $this->set_portState($newval); }

    public function portDirection()
    { return $this->get_portDirection(); }

    public function setPortDirection($newval)
    { return $this->set_portDirection($newval); }

    public function portOpenDrain()
    { return $this->get_portOpenDrain(); }

    public function setPortOpenDrain($newval)
    { return $this->set_portOpenDrain($newval); }

    public function portPolarity()
    { return $this->get_portPolarity(); }

    public function setPortPolarity($newval)
    { return $this->set_portPolarity($newval); }

    public function portDiags()
    { return $this->get_portDiags(); }

    public function portSize()
    { return $this->get_portSize(); }

    public function outputVoltage()
    { return $this->get_outputVoltage(); }

    public function setOutputVoltage($newval)
    { return $this->set_outputVoltage($newval); }

    public function command()
    { return $this->get_command(); }

    public function setCommand($newval)
    { return $this->set_command($newval); }

    /**
     * Continues the enumeration of digital IO ports started using yFirstDigitalIO().
     * Caution: You can't make any assumption about the returned digital IO ports order.
     * If you want to find a specific a digital IO port, use DigitalIO.findDigitalIO()
     * and a hardwareID or a logical name.
     *
     * @return YDigitalIO : a pointer to a YDigitalIO object, corresponding to
     *         a digital IO port currently online, or a null pointer
     *         if there are no more digital IO ports to enumerate.
     */
    public function nextDigitalIO()
    {   $resolve = YAPI::resolveFunction($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 self::FindDigitalIO($next_hwid);
    }

    /**
     * Starts the enumeration of digital IO ports currently accessible.
     * Use the method YDigitalIO::nextDigitalIO() to iterate on
     * next digital IO ports.
     *
     * @return YDigitalIO : a pointer to a YDigitalIO object, corresponding to
     *         the first digital IO port currently online, or a null pointer
     *         if there are none.
     */
    public static function FirstDigitalIO()
    {   $next_hwid = YAPI::getFirstHardwareId('DigitalIO');
        if($next_hwid == null) return null;
        return self::FindDigitalIO($next_hwid);
    }

    //--- (end of YDigitalIO implementation)

};

//--- (YDigitalIO functions)

/**
 * Retrieves a digital IO port 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 digital IO port is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method isOnline() to test if the digital IO port is
 * indeed online at a given time. In case of ambiguity when looking for
 * a digital IO port 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.
 *
 * If a call to this object's is_online() method returns FALSE although
 * you are certain that the matching device is plugged, make sure that you did
 * call registerHub() at application initialization time.
 *
 * @param string $func : a string that uniquely characterizes the digital IO port, for instance
 *         YMINIIO0.digitalIO.
 *
 * @return YDigitalIO : a YDigitalIO object allowing you to drive the digital IO port.
 */
function yFindDigitalIO($func)
{
    return YDigitalIO::FindDigitalIO($func);
}

/**
 * Starts the enumeration of digital IO ports currently accessible.
 * Use the method YDigitalIO::nextDigitalIO() to iterate on
 * next digital IO ports.
 *
 * @return YDigitalIO : a pointer to a YDigitalIO object, corresponding to
 *         the first digital IO port currently online, or a null pointer
 *         if there are none.
 */
function yFirstDigitalIO()
{
    return YDigitalIO::FirstDigitalIO();
}

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