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
|
/*
Copyright (c) 2001 by Juliusz Chroboczek
Copyright (c) 1999 by Keith Packard
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
/* $RCSId: xc/programs/Xserver/hw/kdrive/linux/ms.c,v 1.1 2001/08/09 20:45:15 dawes Exp $ */
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#define NEED_EVENTS
#include <errno.h>
#include <termios.h>
#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/Xpoll.h>
#include "inputstr.h"
#include "scrnintstr.h"
#include "kdrive.h"
static int
MsReadBytes (int fd, char *buf, int len, int min)
{
int n, tot;
fd_set set;
struct timeval tv;
tot = 0;
while (len)
{
n = read (fd, buf, len);
if (n > 0)
{
tot += n;
buf += n;
len -= n;
}
if (tot % min == 0)
break;
FD_ZERO (&set);
FD_SET (fd, &set);
tv.tv_sec = 0;
tv.tv_usec = 100 * 1000;
n = select (fd + 1, &set, 0, 0, &tv);
if (n <= 0)
break;
}
return tot;
}
static void
MsRead (int port, void *closure)
{
unsigned char buf[3 * 200];
unsigned char *b;
int n;
int dx, dy;
unsigned long flags;
while ((n = MsReadBytes (port, (char *) buf, sizeof (buf), 3)) > 0)
{
b = buf;
while (n >= 3)
{
flags = KD_MOUSE_DELTA;
if (b[0] & 0x20)
flags |= KD_BUTTON_1;
if (b[0] & 0x10)
flags |= KD_BUTTON_3;
dx = (char)(((b[0] & 0x03) << 6) | (b[1] & 0x3F));
dy = (char)(((b[0] & 0x0C) << 4) | (b[2] & 0x3F));
n -= 3;
b += 3;
KdEnqueuePointerEvent (closure, flags, dx, dy, 0);
}
}
}
static Status
MsInit (KdPointerInfo *pi)
{
if (!pi)
return BadImplementation;
if (!pi->path || strcmp(pi->path, "auto"))
pi->path = KdSaveString("/dev/mouse");
if (!pi->name)
pi->name = KdSaveString("Microsoft protocol mouse");
return Success;
}
static Status
MsEnable (KdPointerInfo *pi)
{
int port;
struct termios t;
int ret;
port = open (pi->path, O_RDWR | O_NONBLOCK);
if(port < 0) {
ErrorF("Couldn't open %s (%d)\n", pi->path, (int)errno);
return 0;
} else if (port == 0) {
ErrorF("Opening %s returned 0! Please complain to Keith.\n",
pi->path);
goto bail;
}
if(!isatty(port)) {
ErrorF("%s is not a tty\n", pi->path);
goto bail;
}
ret = tcgetattr(port, &t);
if(ret < 0) {
ErrorF("Couldn't tcgetattr(%s): %d\n", pi->path, errno);
goto bail;
}
t.c_iflag &= ~ (IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR |
IGNCR | ICRNL | IXON | IXOFF);
t.c_oflag &= ~ OPOST;
t.c_lflag &= ~ (ECHO | ECHONL | ICANON | ISIG | IEXTEN);
t.c_cflag &= ~ (CSIZE | PARENB);
t.c_cflag |= CS8 | CLOCAL | CSTOPB;
cfsetispeed (&t, B1200);
cfsetospeed (&t, B1200);
t.c_cc[VMIN] = 1;
t.c_cc[VTIME] = 0;
ret = tcsetattr(port, TCSANOW, &t);
if(ret < 0) {
ErrorF("Couldn't tcsetattr(%s): %d\n", pi->path, errno);
goto bail;
}
if (KdRegisterFd (port, MsRead, pi))
return TRUE;
pi->driverPrivate = (void *)port;
return Success;
bail:
close(port);
return BadMatch;
}
static void
MsDisable (KdPointerInfo *pi)
{
KdUnregisterFd (pi, (int)pi->driverPrivate, TRUE);
}
static void
MsFini (KdPointerInfo *pi)
{
}
KdPointerDriver MsMouseDriver = {
"ms",
MsInit,
MsEnable,
MsDisable,
MsFini,
NULL,
};
|
