/*********************************************************************
 *
 *  $Id: svn_id $
 *
 *  Declares yFindPowerOutput(), the high-level API for PowerOutput 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.
 *
 *********************************************************************/


#ifndef YOCTO_POWEROUTPUT_H
#define YOCTO_POWEROUTPUT_H

#include <cfloat>
#include <cmath>

#include "yocto_api.h"

#ifdef YOCTOLIB_NAMESPACE
namespace YOCTOLIB_NAMESPACE
{
#endif

//--- (YPowerOutput return codes)
//--- (end of YPowerOutput return codes)
//--- (YPowerOutput yapiwrapper)
//--- (end of YPowerOutput yapiwrapper)
//--- (YPowerOutput definitions)
class YPowerOutput; // forward declaration

typedef void (*YPowerOutputValueCallback)(YPowerOutput *func, const string& functionValue);
#ifndef _Y_VOLTAGE_ENUM
#define _Y_VOLTAGE_ENUM
typedef enum {
    Y_VOLTAGE_OFF = 0,
    Y_VOLTAGE_OUT3V3 = 1,
    Y_VOLTAGE_OUT5V = 2,
    Y_VOLTAGE_OUT4V7 = 3,
    Y_VOLTAGE_OUT1V8 = 4,
    Y_VOLTAGE_INVALID = -1,
} Y_VOLTAGE_enum;
#endif
//--- (end of YPowerOutput definitions)

//--- (YPowerOutput declaration)
/**
 * YPowerOutput Class: power output control interface, available for instance in the Yocto-I2C, the
 * Yocto-MaxiMicroVolt-Rx, the Yocto-SPI or the Yocto-Serial
 *
 * The YPowerOutput class allows you to control
 * the power output featured on some Yoctopuce devices.
 */
class YOCTO_CLASS_EXPORT YPowerOutput: public YFunction {
#ifdef __BORLANDC__
#pragma option push -w-8022
#endif
//--- (end of YPowerOutput declaration)
protected:
    //--- (YPowerOutput attributes)
    // Attributes (function value cache)
    Y_VOLTAGE_enum  _voltage;
    YPowerOutputValueCallback _valueCallbackPowerOutput;

    friend YPowerOutput *yFindPowerOutput(const string& func);
    friend YPowerOutput *yFirstPowerOutput(void);

    // Function-specific method for parsing of JSON output and caching result
    virtual int     _parseAttr(YJSONObject *json_val);

    // Constructor is protected, use yFindPowerOutput factory function to instantiate
    YPowerOutput(const string& func);
    //--- (end of YPowerOutput attributes)

public:
    virtual ~YPowerOutput();
    //--- (YPowerOutput accessors declaration)

    static const Y_VOLTAGE_enum VOLTAGE_OFF = Y_VOLTAGE_OFF;
    static const Y_VOLTAGE_enum VOLTAGE_OUT3V3 = Y_VOLTAGE_OUT3V3;
    static const Y_VOLTAGE_enum VOLTAGE_OUT5V = Y_VOLTAGE_OUT5V;
    static const Y_VOLTAGE_enum VOLTAGE_OUT4V7 = Y_VOLTAGE_OUT4V7;
    static const Y_VOLTAGE_enum VOLTAGE_OUT1V8 = Y_VOLTAGE_OUT1V8;
    static const Y_VOLTAGE_enum VOLTAGE_INVALID = Y_VOLTAGE_INVALID;

    /**
     * Returns the voltage on the power output featured by the module.
     *
     * @return a value among YPowerOutput::VOLTAGE_OFF, YPowerOutput::VOLTAGE_OUT3V3,
     * YPowerOutput::VOLTAGE_OUT5V, YPowerOutput::VOLTAGE_OUT4V7 and YPowerOutput::VOLTAGE_OUT1V8
     * corresponding to the voltage on the power output featured by the module
     *
     * On failure, throws an exception or returns YPowerOutput::VOLTAGE_INVALID.
     */
    Y_VOLTAGE_enum      get_voltage(void);

    inline Y_VOLTAGE_enum voltage(void)
    { return this->get_voltage(); }

    /**
     * Changes the voltage on the power output provided by the
     * module. Remember to call the saveToFlash() method of the module if the
     * modification must be kept.
     *
     * @param newval : a value among YPowerOutput::VOLTAGE_OFF, YPowerOutput::VOLTAGE_OUT3V3,
     * YPowerOutput::VOLTAGE_OUT5V, YPowerOutput::VOLTAGE_OUT4V7 and YPowerOutput::VOLTAGE_OUT1V8
     * corresponding to the voltage on the power output provided by the
     *         module
     *
     * @return YAPI::SUCCESS if the call succeeds.
     *
     * On failure, throws an exception or returns a negative error code.
     */
    int             set_voltage(Y_VOLTAGE_enum newval);
    inline int      setVoltage(Y_VOLTAGE_enum newval)
    { return this->set_voltage(newval); }

    /**
     * Retrieves a power output for a given identifier.
     * The identifier can be specified using several formats:
     *
     * - FunctionLogicalName
     * - ModuleSerialNumber.FunctionIdentifier
     * - ModuleSerialNumber.FunctionLogicalName
     * - ModuleLogicalName.FunctionIdentifier
     * - ModuleLogicalName.FunctionLogicalName
     *
     *
     * This function does not require that the power output is online at the time
     * it is invoked. The returned object is nevertheless valid.
     * Use the method isOnline() to test if the power output is
     * indeed online at a given time. In case of ambiguity when looking for
     * a power output 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 func : a string that uniquely characterizes the power output, for instance
     *         YI2CMK01.powerOutput.
     *
     * @return a YPowerOutput object allowing you to drive the power output.
     */
    static YPowerOutput* FindPowerOutput(string func);

    /**
     * Registers the callback function that is invoked on every change of advertised value.
     * The callback is then invoked only during the execution of ySleep or yHandleEvents.
     * This provides control over the time when the callback is triggered. For good responsiveness,
     * remember to call one of these two functions periodically. The callback is called once juste after beeing
     * registered, passing the current advertised value  of the function, provided that it is not an empty string.
     * To unregister a callback, pass a NULL pointer as argument.
     *
     * @param callback : the callback function to call, or a NULL pointer. The callback function should take two
     *         arguments: the function object of which the value has changed, and the character string describing
     *         the new advertised value.
     * @noreturn
     */
    virtual int         registerValueCallback(YPowerOutputValueCallback callback);
    using YFunction::registerValueCallback;

    virtual int         _invokeValueCallback(string value);


    inline static YPowerOutput *Find(string func)
    { return YPowerOutput::FindPowerOutput(func); }

    /**
     * Continues the enumeration of power output started using yFirstPowerOutput().
     * Caution: You can't make any assumption about the returned power output order.
     * If you want to find a specific a power output, use PowerOutput.findPowerOutput()
     * and a hardwareID or a logical name.
     *
     * @return a pointer to a YPowerOutput object, corresponding to
     *         a power output currently online, or a NULL pointer
     *         if there are no more power output to enumerate.
     */
           YPowerOutput    *nextPowerOutput(void);
    inline YPowerOutput    *next(void)
    { return this->nextPowerOutput();}

    /**
     * Starts the enumeration of power output currently accessible.
     * Use the method YPowerOutput::nextPowerOutput() to iterate on
     * next power output.
     *
     * @return a pointer to a YPowerOutput object, corresponding to
     *         the first power output currently online, or a NULL pointer
     *         if there are none.
     */
           static YPowerOutput *FirstPowerOutput(void);
    inline static YPowerOutput *First(void)
    { return YPowerOutput::FirstPowerOutput();}
#ifdef __BORLANDC__
#pragma option pop
#endif
    //--- (end of YPowerOutput accessors declaration)
};

//--- (YPowerOutput functions declaration)

/**
 * Retrieves a power output for a given identifier.
 * The identifier can be specified using several formats:
 *
 * - FunctionLogicalName
 * - ModuleSerialNumber.FunctionIdentifier
 * - ModuleSerialNumber.FunctionLogicalName
 * - ModuleLogicalName.FunctionIdentifier
 * - ModuleLogicalName.FunctionLogicalName
 *
 *
 * This function does not require that the power output is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method isOnline() to test if the power output is
 * indeed online at a given time. In case of ambiguity when looking for
 * a power output 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 func : a string that uniquely characterizes the power output, for instance
 *         YI2CMK01.powerOutput.
 *
 * @return a YPowerOutput object allowing you to drive the power output.
 */
inline YPowerOutput *yFindPowerOutput(const string& func)
{ return YPowerOutput::FindPowerOutput(func);}
/**
 * Starts the enumeration of power output currently accessible.
 * Use the method YPowerOutput::nextPowerOutput() to iterate on
 * next power output.
 *
 * @return a pointer to a YPowerOutput object, corresponding to
 *         the first power output currently online, or a NULL pointer
 *         if there are none.
 */
inline YPowerOutput *yFirstPowerOutput(void)
{ return YPowerOutput::FirstPowerOutput();}

//--- (end of YPowerOutput functions declaration)

#ifdef YOCTOLIB_NAMESPACE
// end of namespace definition
}
#endif

#endif
