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
|
/*
* TSLIB based touchscreen driver for KDrive
* Porting to new input API and event queueing by Daniel Stone.
* Derived from ts.c by Keith Packard
* Derived from ps2.c by Jim Gettys
*
* Copyright © 1999 Keith Packard
* Copyright © 2000 Compaq Computer Corporation
* Copyright © 2002 MontaVista Software Inc.
* Copyright © 2005 OpenedHand Ltd.
* Copyright © 2006 Nokia Corporation
*
* 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 the authors and/or copyright holders
* not be used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. The authors and/or
* copyright holders make no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* THE AUTHORS AND/OR COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS AND/OR COPYRIGHT HOLDERS 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.
*/
#ifdef HAVE_KDRIVE_CONFIG_H
#include <kdrive-config.h>
#endif
#define NEED_EVENTS
#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/Xpoll.h>
#include "inputstr.h"
#include "scrnintstr.h"
#include "kdrive.h"
#include <sys/ioctl.h>
#include <tslib.h>
#include <dirent.h>
#include <linux/input.h>
struct TslibPrivate {
int fd;
int lastx, lasty;
struct tsdev *tsDev;
void (*raw_event_hook)(int x, int y, int pressure, void *closure);
void *raw_event_closure;
int phys_screen;
};
static void
TsRead (int fd, void *closure)
{
KdPointerInfo *pi = closure;
struct TslibPrivate *private = pi->driverPrivate;
struct ts_sample event;
long x = 0, y = 0;
unsigned long flags;
if (private->raw_event_hook) {
while (ts_read_raw(private->tsDev, &event, 1) == 1)
private->raw_event_hook (event.x, event.y, event.pressure,
private->raw_event_closure);
return;
}
while (ts_read(private->tsDev, &event, 1) == 1) {
if (event.pressure) {
flags = KD_BUTTON_1;
/*
* Here we test for the touch screen driver actually being on the
* touch screen, if it is we send absolute coordinates. If not,
* then we send delta's so that we can track the entire vga screen.
*/
if (KdCurScreen == private->phys_screen) {
x = event.x;
y = event.y;
} else {
flags |= KD_MOUSE_DELTA;
if ((private->lastx == 0) || (private->lasty == 0)) {
x = event.x;
y = event.y;
} else {
x = event.x - private->lastx;
y = event.y - private->lasty;
}
}
private->lastx = x;
private->lasty = y;
} else {
flags = 0;
x = private->lastx;
y = private->lasty;
}
KdEnqueuePointerEvent (pi, flags, x, y, event.pressure);
}
}
static Status
TslibEnable (KdPointerInfo *pi)
{
struct TslibPrivate *private = pi->driverPrivate;
private->raw_event_hook = NULL;
private->raw_event_closure = NULL;
private->tsDev = ts_open(pi->path, 0);
private->fd = ts_fd(private->tsDev);
if (!private->tsDev || ts_config(private->tsDev) || private->fd < 0) {
ErrorF("[tslib/TslibEnable] failed to open %s\n", pi->path);
if (private->fd >= 0)
close(private->fd);
return BadAlloc;
}
KdRegisterFd(private->fd, TsRead, pi);
return Success;
}
static void
TslibDisable (KdPointerInfo *pi)
{
struct TslibPrivate *private = pi->driverPrivate;
if (private->fd)
KdUnregisterFd(pi, private->fd, TRUE);
if (private->tsDev)
ts_close(private->tsDev);
private->fd = 0;
private->tsDev = NULL;
}
static Status
TslibInit (KdPointerInfo *pi)
{
int fd = 0, i = 0;
DIR *inputdir = NULL;
struct dirent *inputent = NULL;
struct tsdev *tsDev = NULL;
struct TslibPrivate *private = NULL;
if (!pi || !pi->dixdev)
return !Success;
pi->driverPrivate = (struct TslibPrivate *)
xcalloc(sizeof(struct TslibPrivate), 1);
if (!pi->driverPrivate)
return !Success;
private = pi->driverPrivate;
/* hacktastic */
private->phys_screen = 0;
pi->nAxes = 3;
pi->name = KdSaveString("Touchscreen");
pi->inputClass = KD_TOUCHSCREEN;
return Success;
}
static void
TslibFini (KdPointerInfo *pi)
{
if (pi->driverPrivate) {
xfree(pi->driverPrivate);
pi->driverPrivate = NULL;
}
}
KdPointerDriver TsDriver = {
"tslib",
TslibInit,
TslibEnable,
TslibDisable,
TslibFini,
NULL,
};
|
