1 /*
2 * Copyright © 2020 Red Hat, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #include "config.h"
25
26 #include <assert.h>
27
28 #include "libinput-util.h"
29
30 #include "litest.h"
31 #include "litest-int.h"
32
33 struct alps {
34 unsigned int first, second;
35 unsigned int active_touches;
36 };
37
38 static bool
alps_create(struct litest_device * d)39 alps_create(struct litest_device *d)
40 {
41 d->private = zalloc(sizeof(struct alps));
42 return true; /* we want litest to create our device */
43 }
44
45 static bool
touch_down(struct litest_device * d,unsigned int slot,double x,double y)46 touch_down(struct litest_device *d, unsigned int slot, double x, double y)
47 {
48 struct alps *alps = d->private;
49
50 alps->active_touches++;
51
52 if (alps->active_touches == 1)
53 alps->first = slot;
54 if (alps->active_touches == 2)
55 alps->second = slot;
56
57 /* This device announces 4 slots but only does two slots. So
58 * anything over 2 slots we just drop for events,
59 * litest takes care of BTN_TOOL_* for us. */
60 if (alps->active_touches > 2) {
61 /* Need to send SYN_REPORT to flush litest's BTN_TOOL_* updates */
62 litest_event(d, EV_SYN, SYN_REPORT, 0);
63 return true;
64 }
65
66 return false;
67 }
68
69 static bool
touch_move(struct litest_device * d,unsigned int slot,double x,double y)70 touch_move(struct litest_device *d, unsigned int slot, double x, double y)
71 {
72 struct alps *alps = d->private;
73
74 if (alps->active_touches > 2 &&
75 slot != alps->first &&
76 slot != alps->second)
77 return true;
78
79 return false;
80 }
81
82 static bool
touch_up(struct litest_device * d,unsigned int slot)83 touch_up(struct litest_device *d, unsigned int slot)
84 {
85 struct alps *alps = d->private;
86
87 assert(alps->active_touches >= 1);
88 alps->active_touches--;
89
90 /* Need to send SYN_REPORT to flush litest's BTN_TOOL_* updates */
91 if (alps->active_touches > 2 &&
92 slot != alps->first &&
93 slot != alps->second) {
94 litest_event(d, EV_SYN, SYN_REPORT, 0);
95 return true;
96 }
97
98 if (slot == alps->first)
99 alps->first = UINT_MAX;
100 if (slot == alps->second)
101 alps->second = UINT_MAX;
102
103 return false;
104 }
105
106 static struct input_event down[] = {
107 { .type = EV_ABS, .code = ABS_X, .value = LITEST_AUTO_ASSIGN },
108 { .type = EV_ABS, .code = ABS_Y, .value = LITEST_AUTO_ASSIGN },
109 { .type = EV_ABS, .code = ABS_MT_SLOT, .value = LITEST_AUTO_ASSIGN },
110 { .type = EV_ABS, .code = ABS_MT_TRACKING_ID, .value = LITEST_AUTO_ASSIGN },
111 { .type = EV_ABS, .code = ABS_MT_POSITION_X, .value = LITEST_AUTO_ASSIGN },
112 { .type = EV_ABS, .code = ABS_MT_POSITION_Y, .value = LITEST_AUTO_ASSIGN },
113 { .type = EV_SYN, .code = SYN_REPORT, .value = 0 },
114 { .type = -1, .code = -1 },
115 };
116
117 static struct input_event move[] = {
118 { .type = EV_ABS, .code = ABS_MT_SLOT, .value = LITEST_AUTO_ASSIGN },
119 { .type = EV_ABS, .code = ABS_X, .value = LITEST_AUTO_ASSIGN },
120 { .type = EV_ABS, .code = ABS_Y, .value = LITEST_AUTO_ASSIGN },
121 { .type = EV_ABS, .code = ABS_MT_POSITION_X, .value = LITEST_AUTO_ASSIGN },
122 { .type = EV_ABS, .code = ABS_MT_POSITION_Y, .value = LITEST_AUTO_ASSIGN },
123 { .type = EV_SYN, .code = SYN_REPORT, .value = 0 },
124 { .type = -1, .code = -1 },
125 };
126
127 static struct litest_device_interface interface = {
128 .touch_down_events = down,
129 .touch_move_events = move,
130
131 .touch_down = touch_down,
132 .touch_move = touch_move,
133 .touch_up = touch_up,
134 };
135
136 static struct input_id input_id = {
137 .bustype = 0x11,
138 .vendor = 0x2,
139 .product = 0x8,
140 .version = 0x700,
141 };
142
143 static int events[] = {
144 EV_KEY, BTN_LEFT,
145 EV_KEY, BTN_RIGHT,
146 EV_KEY, BTN_MIDDLE,
147 EV_KEY, BTN_TOOL_FINGER,
148 EV_KEY, BTN_TOUCH,
149 EV_KEY, BTN_TOOL_DOUBLETAP,
150 EV_KEY, BTN_TOOL_TRIPLETAP,
151 EV_KEY, BTN_TOOL_QUADTAP,
152 EV_KEY, BTN_TOOL_QUINTTAP,
153 INPUT_PROP_MAX, INPUT_PROP_POINTER,
154 -1, -1,
155 };
156
157 /* Note: we use the user-supplied resolution here, see #408 */
158 static struct input_absinfo absinfo[] = {
159 { ABS_X, 0, 4095, 0, 0, 37 },
160 { ABS_Y, 0, 2047, 0, 0, 26 },
161 { ABS_PRESSURE, 0, 127, 0, 0, 0 },
162 { ABS_MT_SLOT, 0, 3, 0, 0, 0 },
163 { ABS_MT_POSITION_X, 0, 4095, 0, 0, 37 },
164 { ABS_MT_POSITION_Y, 0, 2047, 0, 0, 26 },
165 { ABS_MT_TRACKING_ID, 0, 65535, 0, 0, 0 },
166 { .value = -1 }
167 };
168
169 TEST_DEVICE("alps-3fg",
170 .type = LITEST_ALPS_3FG,
171 .features = LITEST_TOUCHPAD | LITEST_BUTTON,
172 .interface = &interface,
173
174 .name = "AlpsPS/2 ALPS GlidePoint",
175 .id = &input_id,
176 .events = events,
177 .absinfo = absinfo,
178 .create = alps_create,
179 )
180