/*
 * portio_getmap.c  ---  User mode program to read the portio I/O
 *                       permission map.
 *
 *------------------------------------------------------------------------
 *
 * Copyright 1999 Illinois Institute of Technology
 *
 * See the file "LICENSE" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <asm/types.h>

#include "portio.h"

int
main( int argc, char *argv[] )
{
	portio_permission_map map;
	int i, j, index, num_lines, fd, status;

	char usage[] = "Usage: portio_getmap\n";

	if ( argc > 1 ) {
		fputs( usage, stderr );
		exit(1);
	}

	fd = open( PORTIO_DEVICE, O_RDONLY );

	if ( fd == (-1) ) {
		perror( "portio_getmap: open failed" );
		exit(1);
	}

	status = portio_getmap( fd, &map );

	if ( status == (-1) ) {
		perror( "portio_getmap: ioctl failed" );
		exit(1);
	}

	num_lines = PORTIO_NUM_PORTS / 8;

	for ( i = 0; i < num_lines; i++ ) {

		printf( "%#04x - ", PORTIO_MIN_ADDRESS + i * 8 );

		for ( j = 0; j < 8; j++ ) {

			index = j + 8 * i;

			if ( map.map[ index ] == 0 ) {
				printf( ". " );
			} else {
				printf( "* " );
			}
		}
		printf( "\n" );
	}

	exit(0);
}