1 /* $NetBSD: mcclock_pad32.h,v 1.10 2000/02/11 02:36:16 simonb 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 */ 40 struct mcclock_pad32_clockdatum { 41 u_char datum; 42 char pad[3]; 43 }; 44 45 /* 46 * Device softc used by bus-specific front-end. 47 */ 48 struct mcclock_pad32_softc { 49 struct mcclock_softc sc_mcclock; 50 struct mcclock_pad32_clockdatum *sc_dp; 51 }; 52 53 /* register read/write functions */ 54 extern const struct mcclock_busfns mcclock_pad32_busfns; 55