joy_ofisa.c revision 1.2 
1/*	$NetBSD: joy_ofisa.c,v 1.2 2001/11/13 07:29:45 lukem Exp $	*/
2
3/*-
4 * Copyright (c) 1996, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#include <sys/cdefs.h>
40__KERNEL_RCSID(0, "$NetBSD: joy_ofisa.c,v 1.2 2001/11/13 07:29:45 lukem Exp $");
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/device.h>
46
47#include <machine/bus.h>
48
49#include <dev/ofw/openfirm.h>
50#include <dev/isa/isavar.h>
51#include <dev/ofisa/ofisavar.h>
52
53#include <arm32/isa/joyvar.h>
54
55#define	JOY_NPORTS	1	/* XXX should be in a header file */
56
57int	joy_ofisa_match __P((struct device *, struct cfdata *, void *));
58void	joy_ofisa_attach __P((struct device *, struct device *, void *));
59
60struct cfattach joy_ofisa_ca = {
61	sizeof(struct joy_softc), joy_ofisa_match, joy_ofisa_attach
62};
63
64int
65joy_ofisa_match(parent, match, aux)
66	struct device *parent;
67	struct cfdata *match;
68	void *aux;
69{
70	struct ofisa_attach_args *aa = aux;
71	const char *compatible_strings[] = {
72		"pnpPNP,b02f",			/* generic joystick */
73		NULL,
74	};
75	int rv = 0;
76
77	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
78		rv = 1;
79	return (rv);
80}
81
82void
83joy_ofisa_attach(parent, self, aux)
84	struct device *parent, *self;
85	void *aux;
86{
87	struct joy_softc *sc = (struct joy_softc *)self;
88	struct ofisa_attach_args *aa = aux;
89	struct ofisa_reg_desc reg;
90	char *model = NULL;
91	int n;
92
93	/*
94	 * We're living on an OFW.  We have to ask the OFW what our
95	 * register property looks like.
96	 *
97	 * We expect:
98	 *
99	 *	1 i/o register region
100	 */
101
102	n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
103	if (n != 1) {
104		printf(": error getting register data\n");
105		return;
106	}
107	if (reg.type != OFISA_REG_TYPE_IO) {
108		printf(": register type not i/o\n");
109		return;
110	}
111	if (reg.len != JOY_NPORTS) {
112		printf(": weird register size (%lu, expected %d)\n",
113		    (unsigned long)reg.len, JOY_NPORTS);
114		return;
115	}
116
117	sc->sc_iot = aa->iot;
118
119	if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) {
120		printf(": unable to map register space\n");
121		return;
122	}
123
124	n = OF_getproplen(aa->oba.oba_phandle, "model");
125	if (n > 0) {
126		model = alloca(n);
127		if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n)
128			model = NULL;	/* safe; alloca */
129	}
130	if (model != NULL)
131		printf(": %s", model);
132	printf("\n");
133
134	joyattach(sc);
135}
136