joy_ofisa.c revision 1.1 
1/*	$NetBSD: joy_ofisa.c,v 1.1 1998/08/20 07:02:32 thorpej 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/param.h>
40#include <sys/systm.h>
41#include <sys/kernel.h>
42#include <sys/device.h>
43
44#include <machine/bus.h>
45
46#include <dev/ofw/openfirm.h>
47#include <dev/isa/isavar.h>
48#include <dev/ofisa/ofisavar.h>
49
50#include <arm32/isa/joyvar.h>
51
52#define	JOY_NPORTS	1	/* XXX should be in a header file */
53
54int	joy_ofisa_match __P((struct device *, struct cfdata *, void *));
55void	joy_ofisa_attach __P((struct device *, struct device *, void *));
56
57struct cfattach joy_ofisa_ca = {
58	sizeof(struct joy_softc), joy_ofisa_match, joy_ofisa_attach
59};
60
61int
62joy_ofisa_match(parent, match, aux)
63	struct device *parent;
64	struct cfdata *match;
65	void *aux;
66{
67	struct ofisa_attach_args *aa = aux;
68	const char *compatible_strings[] = {
69		"pnpPNP,b02f",			/* generic joystick */
70		NULL,
71	};
72	int rv = 0;
73
74	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
75		rv = 1;
76	return (rv);
77}
78
79void
80joy_ofisa_attach(parent, self, aux)
81	struct device *parent, *self;
82	void *aux;
83{
84	struct joy_softc *sc = (struct joy_softc *)self;
85	struct ofisa_attach_args *aa = aux;
86	struct ofisa_reg_desc reg;
87	char *model = NULL;
88	int n;
89
90	/*
91	 * We're living on an OFW.  We have to ask the OFW what our
92	 * register property looks like.
93	 *
94	 * We expect:
95	 *
96	 *	1 i/o register region
97	 */
98
99	n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
100	if (n != 1) {
101		printf(": error getting register data\n");
102		return;
103	}
104	if (reg.type != OFISA_REG_TYPE_IO) {
105		printf(": register type not i/o\n");
106		return;
107	}
108	if (reg.len != JOY_NPORTS) {
109		printf(": weird register size (%lu, expected %d)\n",
110		    (unsigned long)reg.len, JOY_NPORTS);
111		return;
112	}
113
114	sc->sc_iot = aa->iot;
115
116	if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) {
117		printf(": unable to map register space\n");
118		return;
119	}
120
121	n = OF_getproplen(aa->oba.oba_phandle, "model");
122	if (n > 0) {
123		model = alloca(n);
124		if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n)
125			model = NULL;	/* safe; alloca */
126	}
127	if (model != NULL)
128		printf(": %s", model);
129	printf("\n");
130
131	joyattach(sc);
132}
133