/* 
 JoystickController.h
 
 A trackd module for the standard linux gameport.
 
 Author: Ben Chang
 Revision: 3-11-03

*/

#ifndef _JoystickController_H
#define _JoystickController_H

#define JoystickController_VERSION "5.0.0"

#ifndef LINKAGE
#ifdef WIN32
#define LINKAGE __declspec(dllexport)
#else
#define LINKAGE
#endif
#endif

#include "MessageH.h"
#include "BaseMod.h"

#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/types.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>

#include <linux/joystick.h>

#define NAME_LENGTH 128
#define JS_SELECT_UDELAY 25000


#define DT_MAX_NUM_TRACKERS 0
#define DT_MAX_NUM_CONTROLLERS 5

// These below are prototype definitions of the functions needed to use this
// class as a module.
#ifndef _NO_DLL
extern "C" LINKAGE CBase *createDev(void *config=NULL, CMessageH *p_msgh=NULL);
extern "C" LINKAGE bool deleteDev(CBase *dev=NULL);
#endif

// This class is derived from CBaseMod class defined in BaseMod.h.
class JoystickController: public CBaseMod
{
private:
	
	 
	bool con[DT_MAX_NUM_CONTROLLERS];
	
	// Joystick communication data.
	char port[32];
	
	int fd;  // file descriptor

	/* 	we can have up to 3 valuators, and 6 buttons.  maybe that should be more, later.
		valScale scales the valuator readings.  for instance, the wand returns -1 to 1
		while the joystick does -32767 to 32767 .  
	*/
	
	int numVals;
	float val[16];
	float valScale[16];
	int numBut;
	int but[16];
	
protected:
	// This function is used to retrieve controller data. The setConData(s) 
	// function should also be called within this function to update the 
	// controller data in the storage visible to Trackd.
	// However, this JoystickController does not have controller, so this
	// method is just empty but returning 1.
	int updateConData(void);

	// This function is used to retrieve tracker data. The setTraData(s)
	// function should also be called within this function to update the 
	// tracker data in the storage visible to Trackd.
	int updateTraData(void);

public:
	// Constructor
	JoystickController(void *_config=NULL, CMessageH *p_msgh=NULL );

	// Destructor to deallocate memory.
	~JoystickController(void);

	//Iniitlaize and Configure Data Members
	int init(void *initInfo);

	// This is used to configure the device sending commands.
	int configure(void);

	// This is used to start the device.
	bool start(void);

	// This is used to stop the device.
	bool stop(void);

	// This is used to print out config data when trackd is starting up.
	bool printConfig(void);

	// This is not a standard Module Development method. It is used 
	// specifically for this program.
	void sleep(clock_t wait);
};

#endif /* _JoystickController_H */