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-rw-r--r--src/capabilities.c181
1 files changed, 0 insertions, 181 deletions
diff --git a/src/capabilities.c b/src/capabilities.c
deleted file mode 100644
index cd96e8e..0000000
--- a/src/capabilities.c
+++ /dev/null
@@ -1,181 +0,0 @@
1/***************************************************************************
2 *
3 * Multitouch X driver
4 * Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 *
20 **************************************************************************/
21
22#include "capabilities.h"
23
24#define SETABS(c, x, map, key, fd) \
25 (c->has_##x = getbit(map, key) && getabs(&c->abs_##x, key, fd))
26
27#define ADDCAP(s, c, x) strcat(s, c->has_##x ? " " #x : "")
28
29#define CLICK_AREA(c) ((c->has_ibt ? 0.20 : 0.00) * get_cap_ysize(c))
30
31static const int SN_COORD = 250; /* coordinate signal-to-noise ratio */
32static const int SN_WIDTH = 100; /* width signal-to-noise ratio */
33
34static const int bits_per_long = 8 * sizeof(long);
35
36static inline int nlongs(int nbit)
37{
38 return (nbit + bits_per_long - 1) / bits_per_long;
39}
40
41static inline int getbit(const unsigned long *map, int key)
42{
43 return (map[key / bits_per_long] >> (key % bits_per_long)) & 0x01;
44}
45
46static int getabs(struct input_absinfo *abs, int key, int fd)
47{
48 int rc;
49 SYSCALL(rc = ioctl(fd, EVIOCGABS(key), abs));
50 return rc >= 0;
51}
52
53static int has_integrated_button(const struct Capabilities *cap)
54{
55 static const int bcm5974_vmask_ibt = 1;
56 if (strcmp(cap->devname, "bcm5974"))
57 return 0;
58 return cap->devid.version & bcm5974_vmask_ibt;
59}
60
61int read_capabilities(struct Capabilities *cap, int fd)
62{
63 unsigned long evbits[nlongs(EV_MAX)];
64 unsigned long absbits[nlongs(ABS_MAX)];
65 unsigned long keybits[nlongs(KEY_MAX)];
66 int rc;
67
68 memset(cap, 0, sizeof(struct Capabilities));
69
70 SYSCALL(rc = ioctl(fd, EVIOCGID, &cap->devid));
71 if (rc < 0)
72 return rc;
73 SYSCALL(rc = ioctl(fd, EVIOCGNAME(sizeof(cap->devname)), cap->devname));
74 if (rc < 0)
75 return rc;
76 SYSCALL(rc = ioctl(fd, EVIOCGBIT(EV_SYN, sizeof(evbits)), evbits));
77 if (rc < 0)
78 return rc;
79 SYSCALL(rc = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits));
80 if (rc < 0)
81 return rc;
82 SYSCALL(rc = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits));
83 if (rc < 0)
84 return rc;
85
86 cap->has_left = getbit(keybits, BTN_LEFT);
87 cap->has_middle = getbit(keybits, BTN_MIDDLE);
88 cap->has_right = getbit(keybits, BTN_RIGHT);
89
90 SETABS(cap, touch_major, absbits, ABS_MT_TOUCH_MAJOR, fd);
91 SETABS(cap, touch_minor, absbits, ABS_MT_TOUCH_MINOR, fd);
92 SETABS(cap, width_major, absbits, ABS_MT_WIDTH_MAJOR, fd);
93 SETABS(cap, width_minor, absbits, ABS_MT_WIDTH_MINOR, fd);
94 SETABS(cap, orientation, absbits, ABS_MT_ORIENTATION, fd);
95 SETABS(cap, position_x, absbits, ABS_MT_POSITION_X, fd);
96 SETABS(cap, position_y, absbits, ABS_MT_POSITION_Y, fd);
97
98 cap->has_mtdata = cap->has_position_x && cap->has_position_y;
99 cap->has_ibt = has_integrated_button(cap);
100
101 cap->xfuzz = cap->abs_position_x.fuzz;
102 cap->yfuzz = cap->abs_position_y.fuzz;
103 if (cap->xfuzz <= 0 || cap->yfuzz <= 0) {
104 cap->xfuzz = get_cap_xsize(cap) / SN_COORD;
105 cap->yfuzz = get_cap_ysize(cap) / SN_COORD;
106 }
107 cap->wfuzz = cap->abs_touch_major.fuzz;
108 if (cap->wfuzz <= 0)
109 cap->wfuzz = get_cap_wsize(cap) / SN_WIDTH;
110
111 cap->yclick = cap->abs_position_y.maximum - CLICK_AREA(cap);
112
113 return 0;
114}
115
116int get_cap_xsize(const struct Capabilities *cap)
117{
118 return cap->abs_position_x.maximum - cap->abs_position_x.minimum;
119}
120
121int get_cap_ysize(const struct Capabilities *cap)
122{
123 return cap->abs_position_y.maximum - cap->abs_position_y.minimum;
124}
125
126int get_cap_wsize(const struct Capabilities *cap)
127{
128 return cap->abs_touch_major.maximum - cap->abs_touch_major.minimum;
129}
130
131int get_cap_xmid(const struct Capabilities *cap)
132{
133 return (cap->abs_position_x.maximum + cap->abs_position_x.minimum) >> 1;
134}
135
136int get_cap_ymid(const struct Capabilities *cap)
137{
138 return (cap->abs_position_y.maximum + cap->abs_position_y.minimum) >> 1;
139}
140
141void output_capabilities(const struct Capabilities *cap)
142{
143 char line[1024];
144 memset(line, 0, sizeof(line));
145 ADDCAP(line, cap, left);
146 ADDCAP(line, cap, middle);
147 ADDCAP(line, cap, right);
148 ADDCAP(line, cap, mtdata);
149 ADDCAP(line, cap, ibt);
150 ADDCAP(line, cap, touch_major);
151 ADDCAP(line, cap, touch_minor);
152 ADDCAP(line, cap, width_major);
153 ADDCAP(line, cap, width_minor);
154 ADDCAP(line, cap, orientation);
155 ADDCAP(line, cap, position_x);
156 ADDCAP(line, cap, position_y);
157 xf86Msg(X_INFO, "multitouch: devname: %s\n", cap->devname);
158 xf86Msg(X_INFO, "multitouch: devid: %x %x %x\n",
159 cap->devid.vendor, cap->devid.product, cap->devid.version);
160 xf86Msg(X_INFO, "multitouch: caps:%s\n", line);
161 if (cap->has_touch_major)
162 xf86Msg(X_INFO, "multitouch: touch: %d %d\n",
163 cap->abs_touch_major.minimum,
164 cap->abs_touch_major.maximum);
165 if (cap->has_width_major)
166 xf86Msg(X_INFO, "multitouch: width: %d %d\n",
167 cap->abs_width_major.minimum,
168 cap->abs_width_major.maximum);
169 if (cap->has_orientation)
170 xf86Msg(X_INFO, "multitouch: orientation: %d %d\n",
171 cap->abs_orientation.minimum,
172 cap->abs_orientation.maximum);
173 if (cap->has_position_x)
174 xf86Msg(X_INFO, "multitouch: position_x: %d %d\n",
175 cap->abs_position_x.minimum,
176 cap->abs_position_x.maximum);
177 if (cap->has_position_y)
178 xf86Msg(X_INFO, "multitouch: position_y: %d %d\n",
179 cap->abs_position_y.minimum,
180 cap->abs_position_y.maximum);
181}
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