# HG changeset patch
# User František Kučera <franta-hg@frantovo.cz>
# Date 1496581062 -7200
# Node ID 896eca3d40d8a53cf5c1d130ae718a7d9e3f542c
# Parent  b54d76467040d3f537403d6bb13569daee85d5f5
lpt-signal-generator: první verze

diff -r b54d76467040 -r 896eca3d40d8 c++/lpt-signal-generator/lpt.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/c++/lpt-signal-generator/lpt.cpp	Sun Jun 04 14:57:42 2017 +0200
@@ -0,0 +1,57 @@
+/**
+ * LPT signal generator
+ * Copyright © 2017 František Kučera (frantovo.cz)
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <iostream>
+#include <stdio.h>
+#include <math.h>
+#include <sys/io.h>
+#include <unistd.h>
+
+using namespace std;
+
+// g++ lpt.cpp && ./a.out
+
+int main() {
+  cout << "LPT!" << endl;
+
+  //int addr = 0x378; // parport0
+
+  int addr = 0xe400; // parport1
+
+  //int addr = 0x278;
+
+  //int addr = 0xc800;
+
+
+  if (ioperm(addr,1,1)) { fprintf(stderr, "Access denied to %x\n", addr), exit(1); }
+
+
+  for (int i = 0; i < 30; i++) {
+    cout << "cyklus" << endl;
+    usleep(100*1000);
+    outb(0b11111111, addr);
+    usleep(10*1000);
+    outb(0b00000000, addr);
+  }
+
+
+  cout << "hotovo" << endl;
+
+
+}