Annotation of prex-old/usr/test/ioport/ioport.c, Revision 1.1
1.1 ! nbrk 1: /*-
! 2: * Copyright (c) 2005, Kohsuke Ohtani
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the author nor the names of any co-contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: /*
! 31: * ioport.c - test program for direct I/O access on i386 pc.
! 32: */
! 33:
! 34: /*
! 35: * Note: Currently, the direct I/O access is not allowed on Prex because
! 36: * of the security concern.
! 37: */
! 38:
! 39: #include <sys/cdefs.h>
! 40: #include <prex/prex.h>
! 41: #include <stdio.h>
! 42: #include "ioport.h"
! 43:
! 44: int
! 45: main(int argc, char *argv[])
! 46: {
! 47: int port;
! 48: u_char val;
! 49:
! 50: printf("User mode I/O test program\n");
! 51:
! 52: /* XXX: Get the I/O permission from kernel. */
! 53:
! 54:
! 55: for (port = 0; port < 0xff; port++) {
! 56: /* Cause GP fault! */
! 57: val = inb(port);
! 58: printf("Port 0x%x=%x\n", port, val);
! 59: }
! 60: return 0;
! 61: }
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