1 /* $OpenBSD: joy_isa.c,v 1.7 2007/08/01 13:18:18 martin Exp $ */
2 /* $NetBSD: joy.c,v 1.3 1996/05/05 19:46:15 christos Exp $ */
3
4 /*-
5 * Copyright (c) 1995 Jean-Marc Zucconi
6 * All rights reserved.
7 *
8 * Ported to NetBSD by Matthieu Herrb <matthieu@laas.fr>
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/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/device.h>
39 #include <sys/errno.h>
40
41 #include <machine/cpu.h>
42 #include <machine/pio.h>
43 #include <machine/cpufunc.h>
44 #include <machine/joystick.h>
45 #include <machine/conf.h>
46
47 #include <dev/isa/isavar.h>
48 #include <dev/isa/isareg.h>
49 #include <dev/ic/i8253reg.h>
50 #include <i386/isa/joyreg.h>
51
52 int joy_isa_probe(struct device *, void *, void *);
53 void joy_isa_attach(struct device *, struct device *, void *);
54
55 struct cfattach joy_isa_ca = {
56 sizeof(struct joy_softc), joy_isa_probe, joy_isa_attach
57 };
58
59 int
60 joy_isa_probe(struct device *parent, void *match, void *aux)
61 {
62 struct isa_attach_args *ia = aux;
63 #ifdef WANT_JOYSTICK_CONNECTED
64 int iobase = ia->ia_iobase;
65
66 outb(iobase, 0xff);
67 DELAY(10000); /* 10 ms delay */
68 return (inb(iobase) & 0x0f) != 0x0f;
69 #else
70 ia->ia_iosize = JOY_NPORTS;
71 ia->ia_msize = 0;
72 return 1;
73 #endif
74 }
75
76 void
77 joy_isa_attach(struct device *parent, struct device *self, void *aux)
78 {
79 struct joy_softc *sc = (void *) self;
80 struct isa_attach_args *ia = aux;
81 int iobase = ia->ia_iobase;
82
83 sc->port = iobase;
84 sc->timeout[0] = sc->timeout[1] = 0;
85 outb(iobase, 0xff);
86 DELAY(10000); /* 10 ms delay */
87 #if 0
88 printf(": joystick%sconnected\n",
89 (inb(iobase) & 0x0f) == 0x0f ? " not " : " ");
90 #else
91 printf("\n");
92 #endif
93 }