VOIE PARALLELE COUPLEUR MC 68230 IMPRIMANTE SOUS LINUX

PaCoupleur.h


#ifndef PACOUPLEUR
#define PACOUPLEUR

typedef struct{
	unsigned char offset0,PGCR;
	unsigned char offset2,PSRR;
	unsigned char offset4,PADDR;
	unsigned char offset6,PBDDR;
	unsigned char offset8,PCDDR;
	unsigned char offset10,PIVR;
	unsigned char offset12,PACR;
	unsigned char offset14,PBCR;
	unsigned char offset16,PADR;
	unsigned char offset18,PBDR;
	unsigned char offset20,PAAR;
	unsigned char offset22,PBAR;
	unsigned char offset24,PCDR;
	unsigned char offset26,PSR;
	unsigned char offset28,TCR;
	unsigned char offset30,TIVR;
	unsigned char offset32,CPRH;
	unsigned char offset34,CPRM;
	unsigned char offset36,CPRL;
	unsigned char offset38,CNTRH;
	unsigned char offset40,CNTRM;
	unsigned char offset42,CNTRL;
	unsigned char offset44,TSR;
}coupleur;

class PaCoupleur{
private:
int ID;
coupleur *ptcoupleur;
bool Etat();
public:
bool port_ouvert;
PaCoupleur();
~PaCoupleur();
bool Ecrire(char);
};

#endif







PaCoupleur.cpp


#include <iostream>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include "PaCoupleur.h"

#define Adbase 0xFFFF1000

PaCoupleur::PaCoupleur()
{
	if((ID=open("/dev/mem",O_RDWR))>=0)
	{
		ptcoupleur=(coupleur*)mmap(NULL,1024,PROT_READ|PROT_WRITE,MAP_SHARED,ID,Adbase);
		if(ptcoupleur!=MAP_FAILED)
		{
		cout<<hex<<ptcoupleur<<endl;
		port_ouvert=true;
	//validation des lignes	
	ptcoupleur->PGCR=0x24;
		//mode main impulsionnel sous mode 01
		ptcoupleur->PBCR=0x78;
	

		//sortie
		ptcoupleur->PBDDR=255; //#11111111
		}
		else
		{
		port_ouvert=false;
		}
	}
	else
	port_ouvert=false;
}

PaCoupleur::~PaCoupleur()
{
	if(port_ouvert==true)
	{
	//fermeture
	munmap(ptcoupleur,sizeof(coupleur));
	close(ID);
	}
}

bool PaCoupleur::Etat()
//renseigne sur l etat des buffers
{
	return(true);
}

bool PaCoupleur::Ecrire(char caractere)
{
	ptcoupleur->PBDR=caractere;
	ptcoupleur->PBDR=0x0d;
        
	return(true);
}









main.cpp


#include <iostream>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include "PaCoupleur.h"



using namespace std;

PaCoupleur *O_PaCoupleur=NULL;

int main(void)
{
	char caractere;
	O_PaCoupleur=new PaCoupleur();
	if(O_PaCoupleur->port_ouvert==true)
	{
		cout<<"Entre la valeur à ecrire: "<<endl;
		cin>>caractere;
		O_PaCoupleur->Ecrire(caractere);
	}
	else
	{
		cerr<<"Erreur d'ouverture de la voie parrallele"<<endl;
	}
	delete O_PaCoupleur;
}