1 /* $NetBSD: joy_ofisa.c,v 1.20 2021/01/27 03:10:21 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1996, 1998, 2008 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: joy_ofisa.c,v 1.20 2021/01/27 03:10:21 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/device.h>
39
40 #include <sys/bus.h>
41
42 #include <dev/ofw/openfirm.h>
43 #include <dev/isa/isavar.h>
44 #include <dev/ofisa/ofisavar.h>
45
46 #include <dev/ic/joyvar.h>
47
48 #define JOY_NPORTS 1 /* XXX should be in a header file */
49
50 struct joy_ofisa_softc {
51 struct joy_softc sc_joy;
52 kmutex_t sc_lock;
53 };
54
55 static int joy_ofisa_match(device_t, cfdata_t, void *);
56 static void joy_ofisa_attach(device_t, device_t, void *);
57
58 CFATTACH_DECL_NEW(joy_ofisa, sizeof(struct joy_ofisa_softc),
59 joy_ofisa_match, joy_ofisa_attach, NULL, NULL);
60
61 static const struct device_compatible_entry compat_data[] = {
62 { .compat = "pnpPNP,b02f" }, /* generic joystick */
63 DEVICE_COMPAT_EOL
64 };
65
66 static int
joy_ofisa_match(device_t parent,cfdata_t match,void * aux)67 joy_ofisa_match(device_t parent, cfdata_t match, void *aux)
68 {
69 struct ofisa_attach_args *aa = aux;
70
71 return of_compatible_match(aa->oba.oba_phandle, compat_data);
72 }
73
74 static void
joy_ofisa_attach(device_t parent,device_t self,void * aux)75 joy_ofisa_attach(device_t parent, device_t self, void *aux)
76 {
77 struct joy_ofisa_softc *osc = device_private(self);
78 struct joy_softc *sc = &osc->sc_joy;
79 struct ofisa_attach_args *aa = aux;
80 struct ofisa_reg_desc reg;
81 int n;
82
83 /*
84 * We're living on an OFW. We have to ask the OFW what our
85 * register property looks like.
86 *
87 * We expect:
88 *
89 * 1 i/o register region
90 */
91
92 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1);
93 if (n != 1) {
94 aprint_error(": error getting register data\n");
95 return;
96 }
97 if (reg.type != OFISA_REG_TYPE_IO) {
98 aprint_error(": register type not i/o\n");
99 return;
100 }
101 if (reg.len != JOY_NPORTS) {
102 aprint_error(": weird register size (%lu, expected %d)\n",
103 (unsigned long)reg.len, JOY_NPORTS);
104 return;
105 }
106
107 sc->sc_iot = aa->iot;
108 sc->sc_dev = self;
109
110 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) {
111 aprint_error(": unable to map register space\n");
112 return;
113 }
114
115 ofisa_print_model(NULL, aa->oba.oba_phandle);
116
117 mutex_init(&osc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
118 sc->sc_lock = &osc->sc_lock;
119
120 joyattach(sc);
121 }
122