1/* $NetBSD: mcclock_ioasic.c,v 1.23 2011/06/04 01:43:56 tsutsui 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 1.23 2011/06/04 01:43:56 tsutsui Exp $"); 32 33#include <sys/param.h> 34#include <sys/cpu.h> 35#include <sys/device.h> 36#include <sys/systm.h> 37#include <dev/clock_subr.h> 38 39#include <dev/dec/mcclockvar.h> 40#include <dev/dec/mcclock_pad32.h> 41 42#include <dev/tc/tcvar.h> 43#include <dev/tc/ioasicvar.h> 44 45static int mcclock_ioasic_match(device_t, cfdata_t, void *); 46static void mcclock_ioasic_attach(device_t, device_t, void *); 47 48CFATTACH_DECL_NEW(mcclock_ioasic, sizeof (struct mcclock_pad32_softc), 49 mcclock_ioasic_match, mcclock_ioasic_attach, NULL, NULL); 50 51static int 52mcclock_ioasic_match(device_t parent, cfdata_t cf, void *aux) 53{ 54 struct ioasicdev_attach_args *d = aux; 55 56 if (strcmp("mc146818", d->iada_modname) != 0) 57 return (0); 58 59 if (tc_badaddr(d->iada_addr)) 60 return (0); 61 62 return (1); 63} 64 65static void 66mcclock_ioasic_attach(device_t parent, device_t self, void *aux) 67{ 68 struct ioasicdev_attach_args *ioasicdev = aux; 69 struct mcclock_pad32_softc *sc = device_private(self); 70 71 sc->sc_mcclock.sc_dev = self; 72 sc->sc_dp = (struct mcclock_pad32_clockdatum *)ioasicdev->iada_addr; 73 74 /* Attach MI driver, using busfns with TC-style register padding */ 75 mcclock_attach(&sc->sc_mcclock, &mcclock_pad32_busfns); 76} 77