NetBSD/sys/arch/arc/dev/mcclockvar.h

53 lines
1.8 KiB
C

/* $NetBSD: mcclockvar.h,v 1.1 2001/06/13 15:02:13 soda Exp $ */
/* NetBSD: mcclockvar.h,v 1.4 1997/06/22 08:02:19 jonathan Exp */
/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
struct mcclock_softc {
struct device sc_dev;
const struct mcclock_busfns *sc_busfns;
/* the followings may be used by bus-dependent frontend */
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
};
struct mcclock_busfns {
u_int (*mc_bf_read) __P((struct mcclock_softc *, u_int));
void (*mc_bf_write) __P((struct mcclock_softc *, u_int, u_int));
};
#define mc146818_read(dev, reg) \
(*(sc)->sc_busfns->mc_bf_read)(sc, reg)
#define mc146818_write(sc, reg, datum) \
(*(sc)->sc_busfns->mc_bf_write)(sc, reg, datum)
void mcclock_attach __P((struct mcclock_softc *,
const struct mcclock_busfns *, int));