/* parPort03.c */

/*
Compilació :
gcc -o parPort03 parPort03.c `pkg-config --cflags --libs libglade-2.0 gtk+-2.0` -rdynamic

Execució :
sudo ./parPort03
*/

/*
20071031
www.binefa.net
*/

#include <gtk/gtk.h>
#include <glade/glade.h>

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
/* #include <asm/io.h> */
#include <sys/io.h>

/* Adreça física del port paraŀlel */
#define PORTADDRESS 0x378  

#define DATA PORTADDRESS+0
#define STATUS PORTADDRESS+1
#define CONTROL PORTADDRESS+2

static GtkWidget *finestraPrincipal;
static gboolean gbSel;
static guchar gucByte; 

void vIniciaVariables(){
	gbSel = FALSE;
	gucByte = 0x00;
}

void vTramet(gboolean gbDirecte){
	if(gbDirecte){
		outb(gucByte,DATA);
		g_print("Escric directament : 0x%X\n",gucByte);
	}else
		g_print("No escric directament : 0x%X\n",gucByte);
}

void on_button1_clicked(GtkWidget *widget){
	vTramet(TRUE);
}

void on_checkbutton1_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gbSel = TRUE;
	else
		gbSel = FALSE;
}

void on_togglebutton_b7_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x80;
	else
		gucByte &= 0x7F;
	vTramet(gbSel);
}

void on_togglebutton_b6_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x40;
	else
		gucByte &= 0xBF;
	vTramet(gbSel);
}

void on_togglebutton_b5_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x20;
	else
		gucByte &= 0xDF;
	vTramet(gbSel);
}

void on_togglebutton_b4_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x10;
	else
		gucByte &= 0xEF;
	vTramet(gbSel);
}

void on_togglebutton_b3_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x08;
	else
		gucByte &= 0xF7;
	vTramet(gbSel);
}

void on_togglebutton_b2_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x04;
	else
		gucByte &= 0xFB;
	vTramet(gbSel);
}

void on_togglebutton_b1_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x02;
	else
		gucByte &= 0xFD;
	vTramet(gbSel);
}

void on_togglebutton_b0_toggled(GtkWidget *widget){
	if(gtk_toggle_button_get_active((GtkToggleButton *)widget))
		gucByte |= 0x01;
	else
		gucByte &= 0xFE;
	vTramet(gbSel);
}

void vIniciaPermisos(){
	if(ioperm(DATA,3,1)) {
		perror("Donant permisos (esteu segurs de que sou root?)");
		exit(1);
	}
	
	/* Dono permisos d'ús al port paraŀlel */
	system("chmod 666 /dev/parport0"); 
}

void vFinalitzaPermisos(){
	if(ioperm(DATA,3,0)) {
		perror("Treient permisos");
		exit(1);
	}
}

int main(int argc, char *argv[]){
	GladeXML *arbreDeGinys;
	
	gtk_init(&argc,&argv);
	vIniciaVariables();
	vIniciaPermisos();
	
	arbreDeGinys = glade_xml_new("parPort01.glade",NULL,NULL);
	
	finestraPrincipal = glade_xml_get_widget(arbreDeGinys,"window1");
	
	glade_xml_signal_autoconnect(arbreDeGinys);
	gtk_widget_show_all(finestraPrincipal);
	gtk_main();
	
	vFinalitzaPermisos();
	
	return 0;
}