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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
|
/*-
* Copyright (c) 1995 Jean-Marc Zucconi
* All rights reserved.
*
* 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
* in this position and unchanged.
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sys/time.h>
#include <sys/joystick.h>
#include <isa/isavar.h>
#include "isa_if.h"
/* The game port can manage 4 buttons and 4 variable resistors (usually 2
* joysticks, each with 2 buttons and 2 pots.) via the port at address 0x201.
* Getting the state of the buttons is done by reading the game port:
* buttons 1-4 correspond to bits 4-7 and resistors 1-4 (X1, Y1, X2, Y2)
* to bits 0-3.
* if button 1 (resp 2, 3, 4) is pressed, the bit 4 (resp 5, 6, 7) is set to 0
* to get the value of a resistor, write the value 0xff at port and
* wait until the corresponding bit returns to 0.
*/
#define joypart(d) (minor(d)&1)
#define UNIT(d) ((minor(d)>>1)&3)
#ifndef JOY_TIMEOUT
#define JOY_TIMEOUT 2000 /* 2 milliseconds */
#endif
struct joy_softc {
bus_space_tag_t bt;
bus_space_handle_t port;
int x_off[2], y_off[2];
int timeout[2];
};
#define JOY_SOFTC(unit) (struct joy_softc *) \
devclass_get_softc(joy_devclass,(unit))
static int joy_probe (device_t);
static int joy_attach (device_t);
#define CDEV_MAJOR 51
static d_open_t joyopen;
static d_close_t joyclose;
static d_read_t joyread;
static d_ioctl_t joyioctl;
static struct cdevsw joy_cdevsw = {
/* open */ joyopen,
/* close */ joyclose,
/* read */ joyread,
/* write */ nowrite,
/* ioctl */ joyioctl,
/* poll */ nopoll,
/* mmap */ nommap,
/* strategy */ nostrategy,
/* name */ "joy",
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ 0,
};
devclass_t joy_devclass;
static struct isa_pnp_id joy_ids[] = {
{0x0100630e, "CSC0001 PnP Joystick"}, /* CSC0001 */
{0x0101630e, "CSC0101 PnP Joystick"}, /* CSC0101 */
{0x01100002, "ALS0110 PnP Joystick"}, /* @P@1001 */
{0x01200002, "ALS0120 PnP Joystick"}, /* @P@2001 */
{0x01007316, "ESS0001 PnP Joystick"}, /* ESS0001 */
{0x2fb0d041, "Generic PnP Joystick"}, /* PNPb02f */
{0x2200a865, "YMH0022 PnP Joystick"}, /* YMH0022 */
{0x82719304, NULL}, /* ADS7182 */
{0}
};
static int
joy_probe (device_t dev)
{
if (ISA_PNP_PROBE(device_get_parent(dev), dev, joy_ids) == ENXIO)
return ENXIO;
#ifdef WANT_JOYSTICK_CONNECTED
#ifdef notyet
outb (dev->id_iobase, 0xff);
DELAY (10000); /* 10 ms delay */
return (inb (dev->id_iobase) & 0x0f) != 0x0f;
#endif
#else
return 0;
#endif
}
static int
joy_attach (device_t dev)
{
int unit = device_get_unit(dev);
int rid = 0;
struct resource *res;
struct joy_softc *joy = device_get_softc(dev);
res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
if (res == NULL)
return ENXIO;
joy->bt = rman_get_bustag(res);
joy->port = rman_get_bushandle(res);
joy->timeout[0] = joy->timeout[1] = 0;
make_dev(&joy_cdevsw, 0, 0, 0, 0600, "joy%d", unit);
return 0;
}
static device_method_t joy_methods[] = {
DEVMETHOD(device_probe, joy_probe),
DEVMETHOD(device_attach, joy_attach),
{ 0, 0 }
};
static driver_t joy_isa_driver = {
"joy",
joy_methods,
sizeof (struct joy_softc)
};
DRIVER_MODULE(joy, isa, joy_isa_driver, joy_devclass, 0, 0);
DRIVER_MODULE(joy, acpi, joy_isa_driver, joy_devclass, 0, 0);
static int
joyopen(dev_t dev, int flags, int fmt, struct proc *p)
{
int i = joypart (dev);
struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
if (joy->timeout[i])
return EBUSY;
joy->x_off[i] = joy->y_off[i] = 0;
joy->timeout[i] = JOY_TIMEOUT;
return 0;
}
static int
joyclose(dev_t dev, int flags, int fmt, struct proc *p)
{
int i = joypart (dev);
struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
joy->timeout[i] = 0;
return 0;
}
static int
joyread(dev_t dev, struct uio *uio, int flag)
{
struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
bus_space_handle_t port = joy->port;
bus_space_tag_t bt = joy->bt;
struct timespec t, start, end;
int state = 0;
struct timespec x, y;
struct joystick c;
#ifndef i386
int s;
s = splhigh();
#else
disable_intr ();
#endif
bus_space_write_1 (bt, port, 0, 0xff);
nanotime(&start);
end.tv_sec = 0;
end.tv_nsec = joy->timeout[joypart(dev)] * 1000;
timespecadd(&end, &start);
t = start;
timespecclear(&x);
timespecclear(&y);
while (timespeccmp(&t, &end, <)) {
state = bus_space_read_1 (bt, port, 0);
if (joypart(dev) == 1)
state >>= 2;
nanotime(&t);
if (!timespecisset(&x) && !(state & 0x01))
x = t;
if (!timespecisset(&y) && !(state & 0x02))
y = t;
if (timespecisset(&x) && timespecisset(&y))
break;
}
#ifndef i386
splx(s);
#else
enable_intr ();
#endif
if (timespecisset(&x)) {
timespecsub(&x, &start);
c.x = joy->x_off[joypart(dev)] + x.tv_nsec / 1000;
} else
c.x = 0x80000000;
if (timespecisset(&y)) {
timespecsub(&y, &start);
c.y = joy->y_off[joypart(dev)] + y.tv_nsec / 1000;
} else
c.y = 0x80000000;
state >>= 4;
c.b1 = ~state & 1;
c.b2 = ~(state >> 1) & 1;
return uiomove ((caddr_t)&c, sizeof(struct joystick), uio);
}
static int
joyioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
int i = joypart (dev);
int x;
switch (cmd) {
case JOY_SETTIMEOUT:
x = *(int *) data;
if (x < 1 || x > 10000) /* 10ms maximum! */
return EINVAL;
joy->timeout[i] = x;
break;
case JOY_GETTIMEOUT:
*(int *) data = joy->timeout[i];
break;
case JOY_SET_X_OFFSET:
joy->x_off[i] = *(int *) data;
break;
case JOY_SET_Y_OFFSET:
joy->y_off[i] = *(int *) data;
break;
case JOY_GET_X_OFFSET:
*(int *) data = joy->x_off[i];
break;
case JOY_GET_Y_OFFSET:
*(int *) data = joy->y_off[i];
break;
default:
return ENXIO;
}
return 0;
}
|
