1/*	$NetBSD: mcclock_pad32.h,v 1.9 1998/04/19 07:50:26 jonathan Exp $	*/
2
3/*
4 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22 *  School of Computer Science
23 *  Carnegie Mellon University
24 *  Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30
31/*
32 * mc1461818 (or compatible) clock driver, for machines where
33 * each byte-wide mcclock chip register is  mapped into the low-order
34 * byte of a little-endian 32-bit word,
35 *  DECstation 2100/3100
36 *  DECstation 5100
37 *  DECstation 5000/200 baseboard
38 *  IOCTL asic machines (Alpha  3000 series, Decstation 5000 series)
39 */
40struct mcclock_pad32_clockdatum {
41	u_char	datum;
42	char	pad[3];
43};
44
45/*
46 * Device softc used by bus-specific front-end.
47 */
48struct mcclock_pad32_softc {
49	struct mcclock_softc	sc_mcclock;
50	struct mcclock_pad32_clockdatum *sc_dp;
51};
52
53/* register read/write functions */
54extern const struct mcclock_busfns mcclock_pad32_busfns;
55