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
|
/***************************************************************************
*
* 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
*
**************************************************************************/
#ifndef COMMON_H
#define COMMON_H
#include "xorg-server.h"
#include <xf86.h>
#include <xf86_OSproc.h>
#include <xf86Xinput.h>
#include <linux/input.h>
#include <errno.h>
#include <match/match.h>
/* includes available in 2.6.30-rc5 */
#ifndef BTN_TOOL_QUADTAP
#define BTN_TOOL_QUADTAP 0x14f /* Four fingers on trackpad */
#define ABS_MT_TOUCH_MAJOR 0x30 /* Major axis of touching ellipse */
#define ABS_MT_TOUCH_MINOR 0x31 /* Minor axis (omit if circular) */
#define ABS_MT_WIDTH_MAJOR 0x32 /* Major axis of approaching ellipse */
#define ABS_MT_WIDTH_MINOR 0x33 /* Minor axis (omit if circular) */
#define ABS_MT_ORIENTATION 0x34 /* Ellipse orientation */
#define ABS_MT_POSITION_X 0x35 /* Center X ellipse position */
#define ABS_MT_POSITION_Y 0x36 /* Center Y ellipse position */
#define ABS_MT_TOOL_TYPE 0x37 /* Type of touching device */
#define ABS_MT_BLOB_ID 0x38 /* Group a set of packets as a blob */
#define SYN_MT_REPORT 2
#define MT_TOOL_FINGER 0
#define MT_TOOL_PEN 1
#endif
/* includes available in 2.6.33 */
#ifndef ABS_MT_PRESSURE
#define ABS_MT_PRESSURE 0x3a /* Pressure on contact area */
#endif
#define SYSCALL(call) while (((call) == -1) && (errno == EINTR))
#define BITMASK(x) (1U << (x))
#define BITONES(x) (BITMASK(x) - 1U)
#define GETBIT(m, x) (((m) >> (x)) & 1U)
#define SETBIT(m, x) (m |= BITMASK(x))
#define CLEARBIT(m, x) (m &= ~BITMASK(x))
/* Count number of bits (Sean Eron Andersson's Bit Hacks) */
static inline int bitcount(unsigned v)
{
v -= ((v>>1) & 0x55555555);
v = (v&0x33333333) + ((v>>2) & 0x33333333);
return (((v + (v>>4)) & 0xF0F0F0F) * 0x1010101) >> 24;
}
/* Return index of first bit [0-31], -1 on zero */
#define firstbit(v) (__builtin_ffs(v) - 1)
/* boost-style foreach bit */
#define foreach_bit(i, m) \
for (i = firstbit(m); i >= 0; i = firstbit((m) & (~0U << i + 1)))
#endif
|