xref: /freebsd/sys/dev/evdev/evdev.h (revision 5dae51da3da0cc94d17bd67b308fad304ebec7e0)
1 /*-
2  * Copyright (c) 2014 Jakub Wojciech Klama <jceel@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef	_DEV_EVDEV_EVDEV_H
30 #define	_DEV_EVDEV_EVDEV_H
31 
32 #include <sys/types.h>
33 #include <sys/kbio.h>
34 #include <dev/evdev/input.h>
35 #include <dev/kbd/kbdreg.h>
36 
37 #define	NAMELEN		80
38 
39 struct evdev_dev;
40 
41 typedef int (evdev_open_t)(struct evdev_dev *, void *);
42 typedef void (evdev_close_t)(struct evdev_dev *, void *);
43 typedef void (evdev_event_t)(struct evdev_dev *, void *, uint16_t,
44     uint16_t, int32_t);
45 typedef void (evdev_keycode_t)(struct evdev_dev *, void *,
46     struct input_keymap_entry *);
47 
48 /*
49  * Keyboard and mouse events recipient mask.
50  * evdev_rcpt_mask variable should be respected by keyboard and mouse drivers
51  * that are able to send events through both evdev and sysmouse/kbdmux
52  * interfaces so user can choose prefered one to not receive one event twice.
53  */
54 #define	EVDEV_RCPT_SYSMOUSE	(1<<0)
55 #define	EVDEV_RCPT_KBDMUX	(1<<1)
56 #define	EVDEV_RCPT_HW_MOUSE	(1<<2)
57 #define	EVDEV_RCPT_HW_KBD	(1<<3)
58 extern int evdev_rcpt_mask;
59 
60 #define	ABS_MT_FIRST	ABS_MT_TOUCH_MAJOR
61 #define	ABS_MT_LAST	ABS_MT_TOOL_Y
62 #define	ABS_IS_MT(x)	((x) >= ABS_MT_FIRST && (x) <= ABS_MT_LAST)
63 #define	ABS_MT_INDEX(x)	((x) - ABS_MT_FIRST)
64 #define	MT_CNT		(ABS_MT_INDEX(ABS_MT_LAST) + 1)
65 /* Multitouch protocol type A */
66 #define	MAX_MT_REPORTS	5
67 /* Multitouch protocol type B interface */
68 #define	MAX_MT_SLOTS	16
69 
70 #define	EVDEV_FLAG_SOFTREPEAT	0x00	/* use evdev to repeat keys */
71 #define	EVDEV_FLAG_MT_STCOMPAT	0x01	/* autogenerate ST-compatible events
72 					 * for MT protocol type B reports */
73 #define	EVDEV_FLAG_MT_AUTOREL	0x02	/* Autorelease MT-slots not listed in
74 					 * current MT protocol type B report */
75 #define	EVDEV_FLAG_MAX		0x1F
76 #define	EVDEV_FLAG_CNT		(EVDEV_FLAG_MAX + 1)
77 
78 struct evdev_methods
79 {
80 	evdev_open_t		*ev_open;
81 	evdev_close_t		*ev_close;
82 	evdev_event_t		*ev_event;
83 	evdev_keycode_t		*ev_get_keycode;
84 	evdev_keycode_t		*ev_set_keycode;
85 };
86 
87 /* Input device interface: */
88 struct evdev_dev *evdev_alloc(void);
89 void evdev_free(struct evdev_dev *);
90 void evdev_set_name(struct evdev_dev *, const char *);
91 void evdev_set_id(struct evdev_dev *, uint16_t, uint16_t, uint16_t, uint16_t);
92 void evdev_set_phys(struct evdev_dev *, const char *);
93 void evdev_set_serial(struct evdev_dev *, const char *);
94 void evdev_set_methods(struct evdev_dev *, void *,
95     const struct evdev_methods *);
96 int evdev_register(struct evdev_dev *);
97 int evdev_register_mtx(struct evdev_dev *, struct mtx *);
98 int evdev_unregister(struct evdev_dev *);
99 int evdev_push_event(struct evdev_dev *, uint16_t, uint16_t, int32_t);
100 void evdev_support_prop(struct evdev_dev *, uint16_t);
101 void evdev_support_event(struct evdev_dev *, uint16_t);
102 void evdev_support_key(struct evdev_dev *, uint16_t);
103 void evdev_support_rel(struct evdev_dev *, uint16_t);
104 void evdev_support_abs(struct evdev_dev *, uint16_t, int32_t, int32_t, int32_t,
105    int32_t, int32_t, int32_t);
106 void evdev_support_msc(struct evdev_dev *, uint16_t);
107 void evdev_support_led(struct evdev_dev *, uint16_t);
108 void evdev_support_snd(struct evdev_dev *, uint16_t);
109 void evdev_support_sw(struct evdev_dev *, uint16_t);
110 void evdev_set_repeat_params(struct evdev_dev *, uint16_t, int);
111 int evdev_set_report_size(struct evdev_dev *, size_t);
112 void evdev_set_flag(struct evdev_dev *, uint16_t);
113 
114 /* Multitouch related functions: */
115 int32_t evdev_get_mt_slot_by_tracking_id(struct evdev_dev *, int32_t);
116 void evdev_support_nfingers(struct evdev_dev *, int32_t);
117 void evdev_support_mt_compat(struct evdev_dev *);
118 void evdev_push_nfingers(struct evdev_dev *, int32_t);
119 void evdev_push_mt_compat(struct evdev_dev *);
120 
121 /* Utility functions: */
122 uint16_t evdev_hid2key(int);
123 void evdev_support_all_known_keys(struct evdev_dev *);
124 uint16_t evdev_scancode2key(int *, int);
125 void evdev_push_mouse_btn(struct evdev_dev *, int);
126 void evdev_push_leds(struct evdev_dev *, int);
127 void evdev_push_repeats(struct evdev_dev *, keyboard_t *);
128 evdev_event_t evdev_ev_kbd_event;
129 
130 /* Event reporting shortcuts: */
131 static __inline int
132 evdev_sync(struct evdev_dev *evdev)
133 {
134 
135 	return (evdev_push_event(evdev, EV_SYN, SYN_REPORT, 1));
136 }
137 
138 static __inline int
139 evdev_mt_sync(struct evdev_dev *evdev)
140 {
141 
142 	return (evdev_push_event(evdev, EV_SYN, SYN_MT_REPORT, 1));
143 }
144 
145 static __inline int
146 evdev_push_key(struct evdev_dev *evdev, uint16_t code, int32_t value)
147 {
148 
149 	return (evdev_push_event(evdev, EV_KEY, code, value != 0));
150 }
151 
152 static __inline int
153 evdev_push_rel(struct evdev_dev *evdev, uint16_t code, int32_t value)
154 {
155 
156 	return (evdev_push_event(evdev, EV_REL, code, value));
157 }
158 
159 static __inline int
160 evdev_push_abs(struct evdev_dev *evdev, uint16_t code, int32_t value)
161 {
162 
163 	return (evdev_push_event(evdev, EV_ABS, code, value));
164 }
165 
166 static __inline int
167 evdev_push_msc(struct evdev_dev *evdev, uint16_t code, int32_t value)
168 {
169 
170 	return (evdev_push_event(evdev, EV_MSC, code, value));
171 }
172 
173 static __inline int
174 evdev_push_led(struct evdev_dev *evdev, uint16_t code, int32_t value)
175 {
176 
177 	return (evdev_push_event(evdev, EV_LED, code, value != 0));
178 }
179 
180 static __inline int
181 evdev_push_snd(struct evdev_dev *evdev, uint16_t code, int32_t value)
182 {
183 
184 	return (evdev_push_event(evdev, EV_SND, code, value != 0));
185 }
186 
187 static __inline int
188 evdev_push_sw(struct evdev_dev *evdev, uint16_t code, int32_t value)
189 {
190 
191 	return (evdev_push_event(evdev, EV_SW, code, value != 0));
192 }
193 
194 #endif	/* _DEV_EVDEV_EVDEV_H */
195