1 /* $NetBSD: mcclock_ibus.c,v 1.7 2000/01/14 15:52:00 ad 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 1.7 2000/01/14 15:52:00 ad Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/kernel.h> 35 #include <sys/device.h> 36 37 #include <dev/dec/mcclockvar.h> 38 #include <dev/dec/mcclock_pad32.h> 39 40 #include <pmax/ibus/ibusvar.h> 41 42 static int mcclock_ibus_match __P((struct device *, struct cfdata *, 43 void *)); 44 static void mcclock_ibus_attach __P((struct device *, struct device *, 45 void *)); 46 47 struct cfattach mcclock_ibus_ca = { 48 sizeof (struct mcclock_pad32_softc), 49 (void *)mcclock_ibus_match, mcclock_ibus_attach, 50 }; 51 extern struct cfdriver ibus_cd; 52 53 static int 54 mcclock_ibus_match(parent, match, aux) 55 struct device *parent; 56 struct cfdata *match; 57 void *aux; 58 { 59 struct ibus_attach_args *ia = aux; 60 61 if (parent->dv_cfdata->cf_driver != &ibus_cd) 62 return (0); 63 64 if (strcmp("mc146818", ia->ia_name) != 0) 65 return (0); 66 67 if (badaddr((void *)ia->ia_addr, sizeof(u_int32_t))) 68 return (0); 69 70 return (1); 71 } 72 73 static void 74 mcclock_ibus_attach(parent, self, aux) 75 struct device *parent, *self; 76 void *aux; 77 { 78 struct ibus_attach_args *ia =aux; 79 struct mcclock_pad32_softc *sc = (struct mcclock_pad32_softc *)self; 80 81 sc->sc_dp = (struct mcclock_pad32_clockdatum*)ia->ia_addr; 82 83 /* Attach MI driver, using busfns with TC-style register padding */ 84 mcclock_attach(&sc->sc_mcclock, &mcclock_pad32_busfns); 85 } 86