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
|
/* $XConsortium: lnx_jstk.c /main/7 1996/02/21 17:51:36 kaleb $ */
/* Id: lnx_jstk.c,v 1.1 1995/12/20 14:06:09 lepied Exp */
/*
* Copyright 1995 by Frederic Lepied, France. <fred@sugix.frmug.fr.net>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Frederic Lepied not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Frederic Lepied makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* FREDERIC LEPIED DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL FREDERIC LEPIED BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
static const char rcs_id[] = "Id: lnx_jstk.c,v 1.1 1995/12/20 14:06:09 lepied Exp";
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#define inline __inline__
#include <linux/joystick.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "xf86.h"
#if !defined(JSIOCGTIMELIMIT)
/* make 2.1.x joystick.h backward compatable */
#define JSIOCGTIMELIMIT JS_GET_TIMELIMIT
#define JSIOCSTIMELIMIT JS_SET_TIMELIMIT
#define js_status JS_DATA_TYPE
#endif
/***********************************************************************
*
* xf86JoystickOn --
*
* open the device and init timeout according to the device value.
*
***********************************************************************
*/
int
xf86JoystickOn(char *name, int *timeout, int *centerX, int *centerY)
{
int fd;
struct js_status js;
#ifdef DEBUG
ErrorF("xf86JoystickOn %s\n", name);
#endif
if ((fd = open(name, O_RDWR | O_NDELAY, 0)) < 0)
{
xf86Msg(X_WARNING, "Cannot open joystick '%s' (%s)\n", name,
strerror(errno));
return -1;
}
if (*timeout == 0) {
if (ioctl (fd, JSIOCGTIMELIMIT, timeout) == -1) {
Error("joystick JSIOCGTIMELIMIT ioctl");
}
else {
xf86Msg(X_CONFIG, "Joystick: timeout value = %d\n", *timeout);
}
}
else {
if (ioctl(fd, JSIOCSTIMELIMIT, timeout) == -1) {
Error("joystick JSIOCSTIMELIMIT ioctl");
}
}
/* Assume the joystick is centred when this is called */
read(fd, &js, JS_RETURN);
if (*centerX < 0) {
*centerX = js.x;
xf86Msg(X_CONFIG, "Joystick: CenterX set to %d\n", *centerX);
}
if (*centerY < 0) {
*centerY = js.y;
xf86Msg(X_CONFIG, "Joystick: CenterY set to %d\n", *centerY);
}
return fd;
}
/***********************************************************************
*
* xf86JoystickInit --
*
* called when X device is initialized.
*
***********************************************************************
*/
void
xf86JoystickInit()
{
return;
}
/***********************************************************************
*
* xf86JoystickOff --
*
* close the handle.
*
***********************************************************************
*/
int
xf86JoystickOff(int *fd, int doclose)
{
int oldfd;
if (((oldfd = *fd) >= 0) && doclose) {
close(*fd);
*fd = -1;
}
return oldfd;
}
/***********************************************************************
*
* xf86JoystickGetState --
*
* return the state of buttons and the position of the joystick.
*
***********************************************************************
*/
int
xf86JoystickGetState(int fd, int *x, int *y, int *buttons)
{
struct js_status js;
int status;
status = read(fd, &js, JS_RETURN);
if (status != JS_RETURN)
{
Error("Joystick read");
return 0;
}
*x = js.x;
*y = js.y;
*buttons = js.buttons;
return 1;
}
/*
* Entry point for XFree86 Loader
*/
void
linux_jstkModuleInit(pointer *data, INT32 *magic)
{
*magic = MAGIC_DONE;
*data = NULL;
}
/* end of lnx_jstk.c */
|
