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/* $Id: main.c,v 1.3 2007/03/15 14:37:58 pjetur Exp $
 ***************************************************************************
 *   Copyright (C) 2004 by Nicolas Sutre                                   *
 *   nicolas.sutre@free.fr                                                 *
 *                                                                         *
 *   Copyright (C) 2005 by Bob Dempsey                                     *
 *   bdempsey_64@msn.com 						   *
 *									   *
 *   Copyright (C) 2005 by Julien Etelain and Edward Nys		   *
 *   Converted to C							   *
 *   Commented and improved by Julien Etelain <julien.etelain@utbm.fr>     *
 *                             Edward Nys <edward.ny@utbm.fr>              *
 *                                                                         *
 *   Copyleft (L) 2005 by Sven Lindberg					   *
 *   k8055@k8055.mine.nu						   *
 *   Give it up already :) Simplified (read improved..) and included 	   *
 *   with k8055 lib and with a functional man page			   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
 
#include <string.h>
#include <stdio.h>
#include <usb.h>
#include <assert.h>
#include <sys/time.h>
#include "k8055.h"

#define STR_BUFF 256
#define false 0
#define true 1

int debug = 0;

int ia1 = -1;
int ia2 = -1;
int id8 = -1;
int ipid = 0;

int numread = 1;

int dbt1 = -1; // (-1 => not to set)
int dbt2 = -1; // (-1 => not to set)

int resetcnt1 = false;
int resetcnt2 = false;

int delay = 0;

/*
	Convert a string on n chars to an integer
	Return  1 on sucess
			0 on failure (non number)
*/
int Convert_StringToInt(char *text, int *i)
{
	return sscanf(text, "%d", i);
}

/*
	Write help to standard output
*/
void display_help ( char *params[] ) {

	printf("K8055 version %s MrBrain Build\n",version());
	printf("Copyright (C) 2004 by Nicolas Sutre\n");
	printf("Copyright (C) 2005 by Bob Dempsey\n");
	printf("Copyright (C) 2005 by Julien Etelain and Edward Nys\n");
	printf("Copyleft (L) 2005 by Sven Lindberg\n");
	printf("\n");
	printf("Syntax : %s [-p:(number)] [-d:(value)] [-a1:(value)] [-a2:(value)]\n",params[0]);
	printf("             [-num:(number) [-delay:(number)] [-dbt1:(value)]\n"); 
	printf("             [-dbt2:(value)] [-reset1] [-reset2] [-debug]\n");
	printf("	-p:(number)	Set board number\n");
	printf("	-d:(value)	Set digital output value (8 bits in decimal)\n");
	printf("	-a1:(value)	Set analog output 1 value (0-255)\n");
	printf("	-a2:(value)	Set analog output 2 value (0-255)\n");
	printf("	-num:(number)   Set number of measures\n");	
	printf("	-delay:(number) Set delay between two measure (in msec)\n");		
	printf("	-dbt1:(value)   Set debounce time for counter 1 (in msec)\n");	
	printf("	-dbt2:(value)   Set debounce time for counter 2 (in msec)\n");	
	printf("	-reset1		Reset counter 1\n");
	printf("	-reset2		Reset counter 2\n");
	printf("	-debug		Activate debug mode\n");
	printf("Example : %s -p:1 -d:147 -a1:25 -a2:203\n",params[0]);
	printf("\n");
	printf("Output : (timestamp);(digital);(analog 1);(analog 2);(counter 1);(counter 2)\n");
	printf("Note : timestamp is the number of msec when data is read since program start\n");
	printf("Example : 499;16;128;230;9;8\n");
	printf("499 : Measure done 499 msec after program start\n");

}


/*
	Read arguments, and store values
	Return true if arguments are valid
		else return false
*/
int read_param(int argc,char *params[])
{ 
	int erreurParam = false;
	int i;

	ipid = 0;

	for (i=1; i<argc;i++)
	{
		if ( !strncmp(params[i],"-p:",3) &&
		     !Convert_StringToInt(params[i]+3,&ipid) ) erreurParam = true;
		else
			if ( !strncmp(params[i],"-a1:",4)  &&
		    	!Convert_StringToInt(params[i]+4,&ia1) ) erreurParam = true;
		else
			if ( !strncmp(params[i],"-a2:",4) &&
		    	!Convert_StringToInt(params[i]+4,&ia2) ) erreurParam = true;
		else
			if ( !strncmp(params[i],"-d:",3) &&
		    	!Convert_StringToInt(params[i]+3,&id8) ) erreurParam = true;
		else
			if ( !strncmp(params[i],"-num:",5) &&
		    	!Convert_StringToInt(params[i]+5,&numread) ) erreurParam = true;	
		else
			if ( !strncmp(params[i],"-delay:",7) &&
		    	!Convert_StringToInt(params[i]+7,&delay) ) erreurParam = true;
		else
			if ( !strncmp(params[i],"-dbt1:",6) &&
		    	!Convert_StringToInt(params[i]+6,&dbt1) ) erreurParam = true;
			else
			if ( !strncmp(params[i],"-dbt2:",6) &&
		    	!Convert_StringToInt(params[i]+6,&dbt2) ) erreurParam = true;
		else
			if ( !strcmp(params[i],"-debug") ){
                debug = 1;
			    set_debug_on();
			}
		else
			if ( !strcmp(params[i],"-reset1") ) resetcnt1 = true;
		else
			if ( !strcmp(params[i],"-reset2") ) resetcnt2 = true;					
		else
			if ( !strcmp(params[i],"--help") ) {
				display_help(params);
				return false;
			}

	}


	/*
		Send parameters to standart error
	*/
	if ( debug )
		fprintf(stderr,"Parameters : Card=%d Analog1=%d Analog2=%d Digital=%d\n",ipid,ia1,ia2,id8);
	
	if (ipid<0 || ipid>3){
		printf("Invalid board address!\n");
		return -1;
	}
		
		
	if (erreurParam) 
	{

		printf("Invalid or incomplete options\n");
		
		display_help(params);
		return false;
	} 


	return true; 
}

/*
	Give current timestamp in miliseconds
*/
inline unsigned long int time_msec ( void ) {
	struct timeval t; struct timezone tz;
	gettimeofday (&t,&tz);
	return (1000*t.tv_sec)+(t.tv_usec/1000);
}


int main (int argc,char *params[]) 
{
	int i,result;
	long d=0;
	long a1=0,a2=0;
	long c1=0, c2=0;
	unsigned long int start,mstart=0,lastcall=0;

	start = time_msec();

	/*
		Load parameters
		If parameters are valid continue
	*/
	
	if (read_param(argc,params)) 
	{
		/*
			Initialise USB system
			and enable debug mode
		
		if ( debug ) 
			usb_set_debug(2);
		*/
		/*
			Search the device
		*/
        struct k8055_dev dev;
		if ( open_device(&dev, ipid)<0 ) {
			printf("Could not open the k8055 (port:%d)\nPlease ensure that the device is correctly connected.\n",ipid);
			return (-1);
			
		} else {

			if ( resetcnt1 )
				reset_counter(&dev,1);
			if ( resetcnt2 )
				reset_counter(&dev,2);	
			if ( dbt1 != -1 )
				set_counter_debounce_time(&dev,1,dbt1);
			if ( dbt2 != -1 )
				set_counter_debounce_time(&dev,2,dbt1);

			if ((ia1!=-1) && (ia2!=-1) && (id8!=-1)) {
				result = set_all_values(&dev,id8,ia1,ia2);
				if (debug) printf("SetAllValues=%d - Digital:%d, analog1:%d, analog2:%d\n",result,id8,ia1,ia2);
				}
			else if ((id8 != -1) && (ia1!=-1)) {
				result = set_all_values(&dev,id8,ia1,0);
				if (debug) printf("SetAllValues=%d - Digital:%d, analog1:%d\n",result,id8,ia1);
				}
			else if ((id8 != -1) && (ia2!=-1)) {
				result = set_all_values(&dev,id8,0,ia2);
				if (debug) printf("SetAllValues=%d - Digital:%d, analog2:%d\n",result,id8,ia2);
				}
			else if ((ia1 != -1) && (ia2!=-1)) {
				result = set_all_values(&dev,0,ia1,ia2);
				if (debug) printf("SetAllValues=%d - analog1:%d, analog2:%d\n",result,ia1,ia2);
				}
			else {
				if (ia1!=-1) {
					result=output_analog_channel(&dev,1,ia1);
					if (debug) printf("Set analog1:%d=>%d\n",ia1,result);
					}
				if (ia2!=-1) {
					result=output_analog_channel(&dev,2,ia2);
					if (debug) printf("Set analog2:%d=>%d\n",ia2,result);
					}
				if (id8!=-1) {
					result=write_all_digital(&dev,(long)id8);
					if (debug) printf("Set digital:%d=>%d\n",id8,result);
					}
				}

			mstart = time_msec(); // Measure start
			for (i=0; i<numread; i++) {
				
				if ( delay ) {
					// Wait until next measure
					while ( time_msec()-mstart < i*delay );
				}
				read_all_values( &dev,&d,&a1,&a2,&c1,&c2); 

/*				ReadAllAnalog(&a1,&a2);
				d=ReadAllDigital();
				c1=ReadCounter(1);
				c2=ReadCounter(2);
*/
				lastcall = time_msec();
				printf("%d;%d;%d;%d;%d;%d\n", (int)(lastcall-start),(int)d, (int)a1, (int)a2,(int)c1,(int)c2 );
			}
			
			close_device(&dev);
		}
	}
	return 0;
}