53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* $NetBSD: mcclockvar.h,v 1.1 2001/06/13 15:02:13 soda Exp $ */
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/* NetBSD: mcclockvar.h,v 1.4 1997/06/22 08:02:19 jonathan Exp */
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/*
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* Copyright (c) 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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struct mcclock_softc {
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struct device sc_dev;
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const struct mcclock_busfns *sc_busfns;
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/* the followings may be used by bus-dependent frontend */
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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};
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struct mcclock_busfns {
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u_int (*mc_bf_read) __P((struct mcclock_softc *, u_int));
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void (*mc_bf_write) __P((struct mcclock_softc *, u_int, u_int));
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};
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#define mc146818_read(dev, reg) \
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(*(sc)->sc_busfns->mc_bf_read)(sc, reg)
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#define mc146818_write(sc, reg, datum) \
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(*(sc)->sc_busfns->mc_bf_write)(sc, reg, datum)
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void mcclock_attach __P((struct mcclock_softc *,
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const struct mcclock_busfns *, int));
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