1 /* $NetBSD: mcclock_ibus.c,v 1.12 2002/10/02 04:15:09 thorpej 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 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 31 __KERNEL_RCSID(0, "$NetBSD: mcclock_ibus.c,v 1.12 2002/10/02 04:15:09 thorpej Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/kernel.h> 35 #include <sys/device.h> 36 #include <sys/systm.h> 37 38 #include <dev/dec/mcclockvar.h> 39 #include <dev/dec/mcclock_pad32.h> 40 41 #include <pmax/ibus/ibusvar.h> 42 43 static int mcclock_ibus_match __P((struct device *, struct cfdata *, 44 void *)); 45 static void mcclock_ibus_attach __P((struct device *, struct device *, 46 void *)); 47 48 CFATTACH_DECL(mcclock_ibus, sizeof (struct mcclock_pad32_softc), 49 mcclock_ibus_match, mcclock_ibus_attach, NULL, NULL); 50 51 static int 52 mcclock_ibus_match(parent, match, aux) 53 struct device *parent; 54 struct cfdata *match; 55 void *aux; 56 { 57 struct ibus_attach_args *ia = aux; 58 59 if (strcmp("mc146818", ia->ia_name) != 0) 60 return (0); 61 62 if (badaddr((void *)ia->ia_addr, sizeof(u_int32_t))) 63 return (0); 64 65 return (1); 66 } 67 68 static void 69 mcclock_ibus_attach(parent, self, aux) 70 struct device *parent, *self; 71 void *aux; 72 { 73 struct ibus_attach_args *ia =aux; 74 struct mcclock_pad32_softc *sc = (struct mcclock_pad32_softc *)self; 75 76 sc->sc_dp = (struct mcclock_pad32_clockdatum*)ia->ia_addr; 77 78 /* Attach MI driver, using busfns with TC-style register padding */ 79 mcclock_attach(&sc->sc_mcclock, &mcclock_pad32_busfns); 80 } 81