io.c revision 1.1 1 1.1 sakamoto /* $Id: io.c,v 1.1 1998/01/16 04:17:50 sakamoto Exp $ */
2 1.1 sakamoto
3 1.1 sakamoto /*-
4 1.1 sakamoto * Copyright (C) 1995-1997 Gary Thomas (gdt (at) linuxppc.org)
5 1.1 sakamoto * All rights reserved.
6 1.1 sakamoto *
7 1.1 sakamoto * PCI/ISA I/O support
8 1.1 sakamoto *
9 1.1 sakamoto * Redistribution and use in source and binary forms, with or without
10 1.1 sakamoto * modification, are permitted provided that the following conditions
11 1.1 sakamoto * are met:
12 1.1 sakamoto * 1. Redistributions of source code must retain the above copyright
13 1.1 sakamoto * notice, this list of conditions and the following disclaimer.
14 1.1 sakamoto * 2. Redistributions in binary form must reproduce the above copyright
15 1.1 sakamoto * notice, this list of conditions and the following disclaimer in the
16 1.1 sakamoto * documentation and/or other materials provided with the distribution.
17 1.1 sakamoto * 3. All advertising materials mentioning features or use of this software
18 1.1 sakamoto * must display the following acknowledgement:
19 1.1 sakamoto * This product includes software developed by Gary Thomas.
20 1.1 sakamoto * 4. The name of the author may not be used to endorse or promote products
21 1.1 sakamoto * derived from this software without specific prior written permission.
22 1.1 sakamoto *
23 1.1 sakamoto * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 1.1 sakamoto * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 1.1 sakamoto * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 1.1 sakamoto * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 1.1 sakamoto * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 1.1 sakamoto * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 1.1 sakamoto * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 1.1 sakamoto * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 1.1 sakamoto * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 1.1 sakamoto * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 1.1 sakamoto */
34 1.1 sakamoto
35 1.1 sakamoto volatile unsigned char *ISA_io = (unsigned char *)0x80000000;
36 1.1 sakamoto volatile unsigned char *ISA_mem = (unsigned char *)0xC0000000;
37 1.1 sakamoto
38 1.1 sakamoto void
39 1.1 sakamoto outb(int port, char val)
40 1.1 sakamoto {
41 1.1 sakamoto ISA_io[port] = val;
42 1.1 sakamoto }
43 1.1 sakamoto
44 1.1 sakamoto unsigned char
45 1.1 sakamoto inb(int port)
46 1.1 sakamoto {
47 1.1 sakamoto return (ISA_io[port]);
48 1.1 sakamoto }
49 1.1 sakamoto
50 1.1 sakamoto unsigned long
51 1.1 sakamoto local_to_PCI(unsigned long addr)
52 1.1 sakamoto {
53 1.1 sakamoto return ((addr & 0x7FFFFFFF) | 0x80000000);
54 1.1 sakamoto }
55