1 /* $NetBSD: mcclock_ioasic.c,v 1.14 2000/01/10 03:24:41 simonb 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 1.14 2000/01/10 03:24:41 simonb Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/device.h> 35 36 #include <dev/dec/mcclockvar.h> 37 #include <dev/dec/mcclock_pad32.h> 38 39 #include <dev/tc/tcvar.h> 40 #include <dev/tc/ioasicvar.h> 41 42 static int mcclock_ioasic_match __P((struct device *, struct cfdata *, 43 void *)); 44 static void mcclock_ioasic_attach __P((struct device *, struct device *, 45 void *)); 46 47 struct cfattach mcclock_ioasic_ca = { 48 sizeof (struct mcclock_pad32_softc), 49 mcclock_ioasic_match, mcclock_ioasic_attach, 50 }; 51 extern struct cfdriver ioasic_cd; 52 53 54 static int 55 mcclock_ioasic_match(parent, match, aux) 56 struct device *parent; 57 struct cfdata *match; 58 void *aux; 59 { 60 struct ioasicdev_attach_args *d = aux; 61 62 if (parent->dv_cfdata->cf_driver != &ioasic_cd) 63 return 0; 64 65 if (strcmp("mc146818", d->iada_modname) != 0) 66 return (0); 67 68 if (tc_badaddr(d->iada_addr)) 69 return (0); 70 71 return (1); 72 } 73 74 static void 75 mcclock_ioasic_attach(parent, self, aux) 76 struct device *parent, *self; 77 void *aux; 78 { 79 struct ioasicdev_attach_args *ioasicdev = aux; 80 struct mcclock_pad32_softc *sc = (struct mcclock_pad32_softc *)self; 81 82 sc->sc_dp = (struct mcclock_pad32_clockdatum *)ioasicdev->iada_addr; 83 84 /* Attach MI driver, using busfns with TC-style register padding */ 85 mcclock_attach(&sc->sc_mcclock, &mcclock_pad32_busfns); 86 } 87