com_obio.c revision 1.1 
1/*-
2 * Copyright (c) 2001 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Matt Thomas <matt@3am-software.com>.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *        This product includes software developed by the NetBSD
19 *        Foundation, Inc. and its contributors.
20 * 4. Neither the name of The NetBSD Foundation nor the names of its
21 *    contributors may be used to endorse or promote products derived
22 *    from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/device.h>
40#include <sys/termios.h>
41
42#include <machine/autoconf.h>
43
44#include <dev/ic/comreg.h>
45#include <dev/ic/comvar.h>
46
47static int com_obio_match (struct device *, struct cfdata *, void *);
48static void com_obio_attach (struct device *, struct device *, void *);
49
50struct cfattach com_obio_ca = {
51	sizeof(struct com_softc), com_obio_match, com_obio_attach
52};
53
54extern struct cfdriver com_cd;
55
56static int
57com_obio_match(struct device *parent, struct cfdata *cf, void *aux)
58{
59	struct obio_attach_args *oa = aux;
60	return strcmp(com_cd.cd_name, oa->oa_name) == 0 &&
61	    cf->obiocf_instance == oa->oa_instance;
62}
63
64static void
65com_obio_attach(struct device *parent, struct device *self, void *aux)
66{
67	struct obio_attach_args *oa = aux;
68	struct com_softc *sc = (struct com_softc *) self;
69	int error;
70
71	KASSERT(oa->oa_nregions > 0);
72
73	sc->sc_iot = oa->oa_memt;
74	sc->sc_iobase = oa->oa_addrs[0];
75	sc->sc_frequency = COM_FREQ;
76	error = bus_space_map(sc->sc_iot, oa->oa_addrs[0],
77	    oa->oa_lens[0], 0, &sc->sc_ioh);
78
79	if (error) {
80		printf(": failed to map registers: %d\n", error);
81		return;
82	}
83
84	com_attach_subr(sc);
85	obio_intr_establish(oa, comintr, sc);
86}
87