2 * Copyright © 2011, 2012 Intel Corporation
3 * Copyright © 2013 Jonas Ådahl
5 * Permission to use, copy, modify, distribute, and sell this software and
6 * its documentation for any purpose is hereby granted without fee, provided
7 * that the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of the copyright holders not be used in
10 * advertising or publicity pertaining to distribution of the software
11 * without specific, written prior permission. The copyright holders make
12 * no representations about the suitability of this software for any
13 * purpose. It is provided "as is" without express or implied warranty.
15 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
19 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
20 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
30 #include "linux/input.h"
31 #include <libevdev/libevdev.h>
33 #include "libinput-private.h"
36 enum evdev_event_type {
38 EVDEV_ABSOLUTE_TOUCH_DOWN,
39 EVDEV_ABSOLUTE_MOTION,
40 EVDEV_ABSOLUTE_TOUCH_UP,
41 EVDEV_ABSOLUTE_MT_DOWN,
42 EVDEV_ABSOLUTE_MT_MOTION,
44 EVDEV_RELATIVE_MOTION,
47 enum evdev_device_seat_capability {
48 EVDEV_DEVICE_POINTER = (1 << 0),
49 EVDEV_DEVICE_KEYBOARD = (1 << 1),
50 EVDEV_DEVICE_TOUCH = (1 << 2)
53 enum evdev_device_tags {
54 EVDEV_TAG_EXTERNAL_MOUSE = (1 << 0),
55 EVDEV_TAG_INTERNAL_TOUCHPAD = (1 << 1),
56 EVDEV_TAG_TRACKPOINT = (1 << 2),
65 struct libinput_device base;
67 struct libinput_source *source;
69 struct evdev_dispatch *dispatch;
70 struct libevdev *evdev;
78 const struct input_absinfo *absinfo_x, *absinfo_y;
84 int apply_calibration;
85 struct matrix calibration;
86 struct matrix default_calibration; /* from LIBINPUT_CALIBRATION_MATRIX */
87 struct matrix usermatrix; /* as supplied by the caller */
92 struct mt_slot *slots;
102 struct libinput_timer timer;
103 bool has_middle_button_scroll;
104 bool middle_button_scroll_active;
109 enum evdev_event_type pending_event;
110 enum evdev_device_seat_capability seat_caps;
111 enum evdev_device_tags tags;
117 struct libinput_device_config_accel config;
118 struct motion_filter *filter;
121 /* Bitmask of pressed keys used to ignore initial release events from
123 unsigned long hw_key_mask[NLONGS(KEY_CNT)];
124 /* Key counter used for multiplexing button events internally in
126 uint8_t key_count[KEY_CNT];
129 #define EVDEV_UNHANDLED_DEVICE ((struct evdev_device *) 1)
131 struct evdev_dispatch;
133 struct evdev_dispatch_interface {
134 /* Process an evdev input event. */
135 void (*process)(struct evdev_dispatch *dispatch,
136 struct evdev_device *device,
137 struct input_event *event,
140 /* Destroy an event dispatch handler and free all its resources. */
141 void (*destroy)(struct evdev_dispatch *dispatch);
143 /* A new device was added */
144 void (*device_added)(struct evdev_device *device,
145 struct evdev_device *added_device);
147 /* A device was removed */
148 void (*device_removed)(struct evdev_device *device,
149 struct evdev_device *removed_device);
151 /* A device was suspended */
152 void (*device_suspended)(struct evdev_device *device,
153 struct evdev_device *suspended_device);
155 /* A device was resumed */
156 void (*device_resumed)(struct evdev_device *device,
157 struct evdev_device *resumed_device);
159 /* Tag device with one of EVDEV_TAG */
160 void (*tag_device)(struct evdev_device *device,
161 struct udev_device *udev_device);
164 struct evdev_dispatch {
165 struct evdev_dispatch_interface *interface;
166 struct libinput_device_config_calibration calibration;
169 struct libinput_device_config_send_events config;
170 enum libinput_config_send_events_mode current_mode;
174 struct evdev_device *
175 evdev_device_create(struct libinput_seat *seat,
178 const char *syspath);
181 evdev_device_init_pointer_acceleration(struct evdev_device *device);
183 struct evdev_dispatch *
184 evdev_touchpad_create(struct evdev_device *device);
186 struct evdev_dispatch *
187 evdev_mt_touchpad_create(struct evdev_device *device);
190 evdev_device_led_update(struct evdev_device *device, enum libinput_led leds);
193 evdev_device_get_keys(struct evdev_device *device, char *keys, size_t size);
196 evdev_device_get_output(struct evdev_device *device);
199 evdev_device_get_sysname(struct evdev_device *device);
202 evdev_device_get_name(struct evdev_device *device);
205 evdev_device_get_id_product(struct evdev_device *device);
208 evdev_device_get_id_vendor(struct evdev_device *device);
211 evdev_device_set_default_calibration(struct evdev_device *device,
212 const float calibration[6]);
214 evdev_device_calibrate(struct evdev_device *device,
215 const float calibration[6]);
218 evdev_device_has_capability(struct evdev_device *device,
219 enum libinput_device_capability capability);
222 evdev_device_get_size(struct evdev_device *device,
227 evdev_device_transform_x(struct evdev_device *device,
232 evdev_device_transform_y(struct evdev_device *device,
236 evdev_device_suspend(struct evdev_device *device);
239 evdev_device_resume(struct evdev_device *device);
242 evdev_notify_suspended_device(struct evdev_device *device);
245 evdev_notify_resumed_device(struct evdev_device *device);
248 evdev_keyboard_notify_key(struct evdev_device *device,
251 enum libinput_key_state state);
254 evdev_pointer_notify_button(struct evdev_device *device,
257 enum libinput_button_state state);
260 evdev_post_scroll(struct evdev_device *device,
267 evdev_stop_scroll(struct evdev_device *device, uint64_t time);
270 evdev_device_remove(struct evdev_device *device);
273 evdev_device_destroy(struct evdev_device *device);
276 evdev_convert_to_mm(const struct input_absinfo *absinfo, double v)
278 double value = v - absinfo->minimum;
279 return value/absinfo->resolution;