1 /* $NetBSD: mcclock_ioasic.c,v 1.15 2002/01/08 17:10:28 chs 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> 31 __KERNEL_RCSID(0, "$NetBSD: mcclock_ioasic.c,v 1.15 2002/01/08 17:10:28 chs Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/device.h> 35 #include <sys/systm.h> 36 37 #include <dev/dec/mcclockvar.h> 38 #include <dev/dec/mcclock_pad32.h> 39 40 #include <dev/tc/tcvar.h> 41 #include <dev/tc/ioasicvar.h> 42 43 static int mcclock_ioasic_match __P((struct device *, struct cfdata *, 44 void *)); 45 static void mcclock_ioasic_attach __P((struct device *, struct device *, 46 void *)); 47 48 struct cfattach mcclock_ioasic_ca = { 49 sizeof (struct mcclock_pad32_softc), 50 mcclock_ioasic_match, mcclock_ioasic_attach, 51 }; 52 extern struct cfdriver ioasic_cd; 53 54 55 static int 56 mcclock_ioasic_match(parent, match, aux) 57 struct device *parent; 58 struct cfdata *match; 59 void *aux; 60 { 61 struct ioasicdev_attach_args *d = aux; 62 63 if (parent->dv_cfdata->cf_driver != &ioasic_cd) 64 return 0; 65 66 if (strcmp("mc146818", d->iada_modname) != 0) 67 return (0); 68 69 if (tc_badaddr(d->iada_addr)) 70 return (0); 71 72 return (1); 73 } 74 75 static void 76 mcclock_ioasic_attach(parent, self, aux) 77 struct device *parent, *self; 78 void *aux; 79 { 80 struct ioasicdev_attach_args *ioasicdev = aux; 81 struct mcclock_pad32_softc *sc = (struct mcclock_pad32_softc *)self; 82 83 sc->sc_dp = (struct mcclock_pad32_clockdatum *)ioasicdev->iada_addr; 84 85 /* Attach MI driver, using busfns with TC-style register padding */ 86 mcclock_attach(&sc->sc_mcclock, &mcclock_pad32_busfns); 87 } 88