joy_isa.c revision 1.1 1 /* $NetBSD: joy_isa.c,v 1.1 2002/02/02 18:37:45 jdolecek Exp $ */
2
3 /*-
4 * Copyright (c) 1995 Jean-Marc Zucconi
5 * All rights reserved.
6 *
7 * Ported to NetBSD by Matthieu Herrb <matthieu (at) laas.fr>. Additional
8 * modification by Jason R. Thorpe <thorpej (at) NetBSD.ORG>.
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 * in this position and unchanged.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 */
34
35 #include <sys/cdefs.h>
36 __KERNEL_RCSID(0, "$NetBSD: joy_isa.c,v 1.1 2002/02/02 18:37:45 jdolecek Exp $");
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/device.h>
42
43 #include <machine/bus.h>
44
45 #include <dev/isa/isavar.h>
46
47 #include <dev/ic/joyvar.h>
48
49 #define JOY_NPORTS 1
50
51 int joy_isa_probe __P((struct device *, struct cfdata *, void *));
52 void joy_isa_attach __P((struct device *, struct device *, void *));
53
54 struct cfattach joy_isa_ca = {
55 sizeof(struct joy_softc), joy_isa_probe, joy_isa_attach
56 };
57
58 int
59 joy_isa_probe(parent, match, aux)
60 struct device *parent;
61 struct cfdata *match;
62 void *aux;
63 {
64 struct isa_attach_args *ia = aux;
65 bus_space_tag_t iot = ia->ia_iot;
66 bus_space_handle_t ioh;
67 int rval = 0;
68
69 if (ia->ia_nio < 1)
70 return (0);
71
72 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
73 return (0);
74
75 if (bus_space_map(iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, &ioh))
76 return (0);
77
78 #ifdef WANT_JOYSTICK_CONNECTED
79 bus_space_write_1(iot, ioh, 0, 0xff);
80 DELAY(10000); /* 10 ms delay */
81 if ((bus_space_read_1(iot, ioh, 0) & 0x0f) != 0x0f)
82 rval = 1;
83 #else
84 rval = 1;
85 #endif
86
87 bus_space_unmap(iot, ioh, JOY_NPORTS);
88
89 if (rval) {
90 ia->ia_nio = 1;
91 ia->ia_io[0].ir_size = JOY_NPORTS;
92
93 ia->ia_niomem = 0;
94 ia->ia_nirq = 0;
95 ia->ia_ndrq = 0;
96 }
97 return (rval);
98 }
99
100 void
101 joy_isa_attach(parent, self, aux)
102 struct device *parent, *self;
103 void *aux;
104 {
105 struct joy_softc *sc = (struct joy_softc *) self;
106 struct isa_attach_args *ia = aux;
107
108 printf("\n");
109
110 sc->sc_iot = ia->ia_iot;
111
112 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0,
113 &sc->sc_ioh)) {
114 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
115 return;
116 }
117
118 joyattach(sc);
119 }
120