initial checkin from subversion

parport-io.c

@@ -0,0 +1,52 @@
+
+
+void PortOpen(int port);
+void PortClose(int pPort);
+void PortWrite(int pPort, unsigned char val);
+unsigned int PortRead(int pPort);
+
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <asm/io.h>
+
+//* #include "port.h"
+
+void PortClose(int pPort) 
+{
+        int ret;
+
+        ret = ioperm(pPort, 4, 0);
+        if (ret != 0)  {
+                printf("Error: ioperm(%d,4,0): %d '%s'\n",
+                        pPort,errno, sys_errlist[errno] );
+                exit(-1);
+        }
+        printf( "SUCCESS: ioperm(%d,4,0) .. %d\n", pPort, ret );
+}
+
+void PortOpen(int pPort) 
+{
+        int ret;
+
+        ret = ioperm(pPort, 4, 1);
+        if (ret != 0)  {
+                printf("Error: ioperm(%d,4,1): %d '%s'\n",
+                        pPort,errno, sys_errlist[errno] );
+                exit(-1);
+        }
+        printf( "SUCCESS: ioperm(%d,4,1) .. %d\n", pPort, ret );
+}
+
+unsigned int PortRead(int pPort) 
+{
+//      return( (inb(pPort)<<8) + inb(pPort+1));
+        return( inb(pPort) );
+}
+
+void PortWrite(int pPort, unsigned char val) 
+{
+        outb(val, pPort);
+}