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
|
/***************************************************************************
*
* Multitouch X driver
* Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
**************************************************************************/
#include "mtouch.h"
int configure_mtouch(struct MTouch *mt, int fd)
{
int rc = read_capabilities(&mt->caps, fd);
if (rc < 0)
return rc;
output_capabilities(&mt->caps);
return 0;
}
int open_mtouch(struct MTouch *mt, int fd)
{
int rc;
init_iobuf(&mt->buf);
init_hwdata(&mt->hw);
init_hwstate(&mt->hs);
init_mtstate(&mt->prev_state);
init_mtstate(&mt->state);
init_memory(&mt->mem);
SYSCALL(rc = ioctl(fd, EVIOCGRAB, (pointer)1));
return rc;
}
int close_mtouch(struct MTouch *mt, int fd)
{
int rc;
SYSCALL(rc = ioctl(fd, EVIOCGRAB, (pointer)0));
return rc;
}
int read_synchronized_event(struct MTouch *mt, int fd)
{
const struct input_event *ev;
while (ev = get_iobuf_event(&mt->buf, fd))
if (read_hwdata(&mt->hw, ev))
return 1;
return 0;
}
void parse_event(struct MTouch *mt)
{
modify_hwstate(&mt->hs, &mt->hw, &mt->caps);
extract_mtstate(&mt->state, &mt->hs, &mt->caps);
#if 0
output_mtstate(&mt->state);
#endif
}
|
