franta-hg@44: /**
franta-hg@44:  * LPT signal generator
franta-hg@44:  * Copyright © 2017 František Kučera (frantovo.cz)
franta-hg@44:  *
franta-hg@44:  * This program is free software: you can redistribute it and/or modify
franta-hg@44:  * it under the terms of the GNU General Public License as published by
franta-hg@44:  * the Free Software Foundation, either version 3 of the License, or
franta-hg@44:  * (at your option) any later version.
franta-hg@44:  *
franta-hg@44:  * This program is distributed in the hope that it will be useful,
franta-hg@44:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
franta-hg@44:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
franta-hg@44:  * GNU General Public License for more details.
franta-hg@44:  *
franta-hg@44:  * You should have received a copy of the GNU General Public License
franta-hg@44:  * along with this program. If not, see <http://www.gnu.org/licenses/>.
franta-hg@44:  */
franta-hg@44: 
franta-hg@44: #include <stdlib.h>
franta-hg@44: #include <iostream>
franta-hg@44: #include <stdio.h>
franta-hg@44: #include <math.h>
franta-hg@44: #include <sys/io.h>
franta-hg@44: #include <unistd.h>
franta-hg@44: 
franta-hg@44: using namespace std;
franta-hg@44: 
franta-hg@44: // g++ lpt.cpp && ./a.out
franta-hg@44: 
franta-hg@44: int main() {
franta-hg@44:   cout << "LPT!" << endl;
franta-hg@44: 
franta-hg@44:   //int addr = 0x378; // parport0
franta-hg@44: 
franta-hg@44:   int addr = 0xe400; // parport1
franta-hg@44: 
franta-hg@44:   //int addr = 0x278;
franta-hg@44: 
franta-hg@44:   //int addr = 0xc800;
franta-hg@44: 
franta-hg@44: 
franta-hg@44:   if (ioperm(addr,1,1)) { fprintf(stderr, "Access denied to %x\n", addr), exit(1); }
franta-hg@44: 
franta-hg@44: 
franta-hg@44:   for (int i = 0; i < 30; i++) {
franta-hg@44:     cout << "cyklus" << endl;
franta-hg@44:     usleep(100*1000);
franta-hg@44:     outb(0b11111111, addr);
franta-hg@44:     usleep(10*1000);
franta-hg@44:     outb(0b00000000, addr);
franta-hg@44:   }
franta-hg@44: 
franta-hg@44: 
franta-hg@44:   cout << "hotovo" << endl;
franta-hg@44: 
franta-hg@44: 
franta-hg@44: }