88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/* $NetBSD: mcclock_pad32.c,v 1.9 1998/04/19 07:50:25 jonathan Exp $ */
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/*
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* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: mcclock_pad32.c,v 1.9 1998/04/19 07:50:25 jonathan Exp $");
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/*
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* mc1461818 (or compatible) clock chip driver, for machines where each
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* byte-wide mcclock chip register is mapped
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* into the low-order byte of a little-endian 32-bit word.
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*
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* DECstation 2100/3100
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* DECstation 5100
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* DECstation 5000/200 baseboard
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* IOCTL asic machines (Alpha 3000 series, Decstation 5000 series)
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*
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* bus-specific frontends should just declare an attach and match
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* entry, and set up a initializea switch to call the functions below.
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/autoconf.h>
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#include <dev/dec/clockvar.h>
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#include <dev/dec/mcclockvar.h>
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#include <dev/ic/mc146818reg.h>
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#include <dev/dec/mcclock_pad32.h>
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void mcclock_pad32_write __P((struct mcclock_softc *, u_int, u_int));
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u_int mcclock_pad32_read __P((struct mcclock_softc *, u_int));
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const struct mcclock_busfns mcclock_pad32_busfns = {
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mcclock_pad32_write, mcclock_pad32_read,
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};
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void
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mcclock_pad32_write(dev, reg, datum)
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struct mcclock_softc *dev;
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u_int reg, datum;
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{
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struct mcclock_pad32_softc *sc = (struct mcclock_pad32_softc *)dev;
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sc->sc_dp[reg].datum = datum;
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}
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u_int
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mcclock_pad32_read(dev, reg)
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struct mcclock_softc *dev;
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u_int reg;
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{
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struct mcclock_pad32_softc *sc = (struct mcclock_pad32_softc *)dev;
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return (sc->sc_dp[reg].datum);
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}
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