summaryrefslogtreecommitdiff
path: root/sys/dev/ofisa/joy_ofisa.c
blob: 377426dfe6b8e2ef0ca4f4bc80aa18d6afc1035b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/*	$NetBSD: joy_ofisa.c,v 1.15 2011/11/23 23:07:33 jmcneill Exp $	*/

/*-
 * Copyright (c) 1996, 1998, 2008 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: joy_ofisa.c,v 1.15 2011/11/23 23:07:33 jmcneill Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>

#include <sys/bus.h>

#include <dev/ofw/openfirm.h>
#include <dev/isa/isavar.h>
#include <dev/ofisa/ofisavar.h>

#include <dev/ic/joyvar.h>

#define	JOY_NPORTS	1	/* XXX should be in a header file */

struct joy_ofisa_softc {
	struct joy_softc sc_joy;
	kmutex_t sc_lock;
};

static int	joy_ofisa_match(device_t, cfdata_t, void *);
static void	joy_ofisa_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(joy_ofisa, sizeof(struct joy_ofisa_softc),
    joy_ofisa_match, joy_ofisa_attach, NULL, NULL);

static int
joy_ofisa_match(device_t parent, cfdata_t match, void *aux)
{
	struct ofisa_attach_args *aa = aux;
	static const char *const compatible_strings[] = {
		"pnpPNP,b02f",			/* generic joystick */
		NULL,
	};
	int rv = 0;

	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
		rv = 1;
	return rv;
}

static void
joy_ofisa_attach(device_t parent, device_t self, void *aux)
{
	struct joy_ofisa_softc *osc = device_private(self);
	struct joy_softc *sc = &osc->sc_joy;
	struct ofisa_attach_args *aa = aux;
	struct ofisa_reg_desc reg;
	char *model = NULL;
	int n;

	/*
	 * We're living on an OFW.  We have to ask the OFW what our
	 * register property looks like.
	 *
	 * We expect:
	 *
	 *	1 i/o register region
	 */

	n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
	if (n != 1) {
		aprint_error(": error getting register data\n");
		return;
	}
	if (reg.type != OFISA_REG_TYPE_IO) {
		aprint_error(": register type not i/o\n");
		return;
	}
	if (reg.len != JOY_NPORTS) {
		aprint_error(": weird register size (%lu, expected %d)\n",
		    (unsigned long)reg.len, JOY_NPORTS);
		return;
	}

	sc->sc_iot = aa->iot;
	sc->sc_dev = self;

	if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) {
		aprint_error(": unable to map register space\n");
		return;
	}

	n = OF_getproplen(aa->oba.oba_phandle, "model");
	if (n > 0) {
		model = alloca(n);
		if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n)
			model = NULL;	/* safe; alloca */
	}
	if (model != NULL)
		aprint_normal(": %s", model);
	aprint_normal("\n");

	mutex_init(&osc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
	sc->sc_lock = &osc->sc_lock;

	joyattach(sc);
}