xref: /freebsd/sys/dev/evdev/input.h (revision 7ef62cebc2f965b0f640263e179276928885e33d)
1 /*-
2  * Copyright (c) 2016 Oleksandr Tymoshenko <gonzo@FreeBSD.org>
3  * Copyright (c) 2015-2016 Vladimir Kondratyev <wulf@FreeBSD.org>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef	_EVDEV_INPUT_H
31 #define	_EVDEV_INPUT_H
32 
33 #ifndef __KERNEL__
34 #include <sys/ioccom.h>
35 #include <sys/time.h>
36 #include <sys/types.h>
37 #endif
38 
39 #include "input-event-codes.h"
40 
41 #define	input_event_sec		time.tv_sec
42 #define	input_event_usec	time.tv_usec
43 
44 struct input_event {
45 	struct timeval	time;
46 	uint16_t	type;
47 	uint16_t	code;
48 	int32_t		value;
49 };
50 
51 #define	EV_VERSION		0x010001
52 
53 struct input_id {
54 	uint16_t	bustype;
55 	uint16_t	vendor;
56 	uint16_t	product;
57 	uint16_t	version;
58 };
59 
60 struct input_absinfo {
61 	int32_t		value;
62 	int32_t		minimum;
63 	int32_t		maximum;
64 	int32_t		fuzz;
65 	int32_t		flat;
66 	int32_t		resolution;
67 };
68 
69 #define	INPUT_KEYMAP_BY_INDEX	(1 << 0)
70 
71 struct input_keymap_entry {
72 	uint8_t		flags;
73 	uint8_t		len;
74 	uint16_t	index;
75 	uint32_t	keycode;
76 	uint8_t		scancode[32];
77 };
78 
79 #define	EVDEV_IOC_MAGIC	'E'
80 #define	EVIOCGVERSION		_IOR(EVDEV_IOC_MAGIC, 0x01, int)		/* get driver version */
81 #define	EVIOCGID		_IOR(EVDEV_IOC_MAGIC, 0x02, struct input_id)	/* get device ID */
82 #define	EVIOCGREP		_IOR(EVDEV_IOC_MAGIC, 0x03, unsigned int[2])	/* get repeat settings */
83 #define	EVIOCSREP		_IOW(EVDEV_IOC_MAGIC, 0x03, unsigned int[2])	/* set repeat settings */
84 
85 #define	EVIOCGKEYCODE		_IOWR(EVDEV_IOC_MAGIC, 0x04, unsigned int[2])	/* get keycode */
86 #define	EVIOCGKEYCODE_V2	_IOWR(EVDEV_IOC_MAGIC, 0x04, struct input_keymap_entry)
87 #define	EVIOCSKEYCODE		_IOW(EVDEV_IOC_MAGIC, 0x04, unsigned int[2])	/* set keycode */
88 #define	EVIOCSKEYCODE_V2	_IOW(EVDEV_IOC_MAGIC, 0x04, struct input_keymap_entry)
89 
90 #define	EVIOCGNAME(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x06, len)	/* get device name */
91 #define	EVIOCGPHYS(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x07, len)	/* get physical location */
92 #define	EVIOCGUNIQ(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x08, len)	/* get unique identifier */
93 #define	EVIOCGPROP(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x09, len)	/* get device properties */
94 
95 #define	EVIOCGMTSLOTS(len)	_IOC(IOC_INOUT,	EVDEV_IOC_MAGIC, 0x0a, len)	/* get MT slots values */
96 
97 #define	EVIOCGKEY(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x18, len)	/* get global key state */
98 #define	EVIOCGLED(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x19, len)	/* get all LEDs */
99 #define	EVIOCGSND(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x1a, len)	/* get all sounds status */
100 #define	EVIOCGSW(len)		_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x1b, len)	/* get all switch states */
101 
102 #define	EVIOCGBIT(ev,len)	_IOC(IOC_OUT, EVDEV_IOC_MAGIC, 0x20 + (ev), len)	/* get event bits */
103 #define	EVIOCGABS(abs)		_IOR(EVDEV_IOC_MAGIC, 0x40 + (abs), struct input_absinfo)	/* get abs value/limits */
104 #define	EVIOCSABS(abs)		_IOW(EVDEV_IOC_MAGIC, 0xc0 + (abs), struct input_absinfo)	/* set abs value/limits */
105 
106 #define	EVIOCSFF		_IOW(EVDEV_IOC_MAGIC, 0x80, struct ff_effect)	/* send a force effect to a force feedback device */
107 #define	EVIOCRMFF		_IOWINT(EVDEV_IOC_MAGIC, 0x81)			/* Erase a force effect */
108 #define	EVIOCGEFFECTS		_IOR(EVDEV_IOC_MAGIC, 0x84, int)		/* Report number of effects playable at the same time */
109 
110 #define	EVIOCGRAB		_IOWINT(EVDEV_IOC_MAGIC, 0x90)			/* Grab/Release device */
111 #define	EVIOCREVOKE		_IOWINT(EVDEV_IOC_MAGIC, 0x91)			/* Revoke device access */
112 
113 #define	EVIOCSCLOCKID		_IOW(EVDEV_IOC_MAGIC, 0xa0, int)		/* Set clockid to be used for timestamps */
114 
115 /*
116  * IDs.
117  */
118 
119 #define	ID_BUS			0
120 #define	ID_VENDOR		1
121 #define	ID_PRODUCT		2
122 #define	ID_VERSION		3
123 
124 #define	BUS_PCI			0x01
125 #define	BUS_ISAPNP		0x02
126 #define	BUS_USB			0x03
127 #define	BUS_HIL			0x04
128 #define	BUS_BLUETOOTH		0x05
129 #define	BUS_VIRTUAL		0x06
130 
131 #define	BUS_ISA			0x10
132 #define	BUS_I8042		0x11
133 #define	BUS_XTKBD		0x12
134 #define	BUS_RS232		0x13
135 #define	BUS_GAMEPORT		0x14
136 #define	BUS_PARPORT		0x15
137 #define	BUS_AMIGA		0x16
138 #define	BUS_ADB			0x17
139 #define	BUS_I2C			0x18
140 #define	BUS_HOST		0x19
141 #define	BUS_GSC			0x1A
142 #define	BUS_ATARI		0x1B
143 #define	BUS_SPI			0x1C
144 #define	BUS_RMI			0x1D
145 #define	BUS_CEC			0x1E
146 #define	BUS_INTEL_ISHTP		0x1F
147 
148 /*
149  * MT_TOOL types
150  */
151 #define	MT_TOOL_FINGER		0x00
152 #define	MT_TOOL_PEN		0x01
153 #define	MT_TOOL_PALM		0x02
154 #define	MT_TOOL_DIAL		0x0a
155 #define	MT_TOOL_MAX		0x0f
156 
157 /*
158  * Values describing the status of a force-feedback effect
159  */
160 #define	FF_STATUS_STOPPED	0x00
161 #define	FF_STATUS_PLAYING	0x01
162 #define	FF_STATUS_MAX		0x01
163 
164 /* scheduling info for force feedback effect */
165 struct ff_replay {
166 	uint16_t	length;		/* length of the effect (ms) */
167 	uint16_t	delay;		/* delay before effect starts (ms) */
168 };
169 
170 /* trigger for force feedback effect */
171 struct ff_trigger {
172 	uint16_t	button;		/* trigger button number */
173 	uint16_t	interval;	/* delay between re-triggers */
174 };
175 
176 /* force feedback effect envelop */
177 struct ff_envelope {
178 	uint16_t	attack_length;	/* duration of the attach (ms) */
179 	uint16_t	attack_level;	/* level at the beginning (0x0000 - 0x7fff) */
180 	uint16_t	fade_length;	/* duratin of fade (ms) */
181 	uint16_t	fade_level;	/* level at the end of fade */
182 };
183 
184 struct ff_constant_effect {
185 	int16_t			level;
186 	struct ff_envelope	envelope;
187 };
188 
189 struct ff_ramp_effect {
190 	int16_t			start_level;
191 	int16_t			end_level;
192 	struct ff_envelope	envelope;
193 };
194 
195 struct ff_condition_effect {
196 	/* maximum level when joystick moved to respective side */
197 	uint16_t	right_saturation;
198 
199 	uint16_t	left_saturation;
200 	/* how fast force grows when joystick move to the respective side */
201 	int16_t		right_coeff;
202 	int16_t		left_coeff;
203 
204 	uint16_t	deadband;	/* size of dead zone when no force is produced */
205 	int16_t		center;		/* center of dead zone */
206 };
207 
208 /*
209  * Force feedback periodic effect types
210  */
211 
212 #define	FF_SQUARE	0x58
213 #define	FF_TRIANGLE	0x59
214 #define	FF_SINE		0x5a
215 #define	FF_SAW_UP	0x5b
216 #define	FF_SAW_DOWN	0x5c
217 #define	FF_CUSTOM	0x5d
218 
219 #define	FF_WAVEFORM_MIN	FF_SQUARE
220 #define	FF_WAVEFORM_MAX	FF_CUSTOM
221 
222 struct ff_periodic_effect {
223 	uint16_t		waveform;
224 	uint16_t		period;		/* ms */
225 	int16_t			magnitude;	/* peak */
226 	int16_t			offset;		/* mean, roughly */
227 	uint16_t		phase;		/* horizontal shift */
228 	struct ff_envelope	envelope;
229 	uint32_t		custom_len;	/* FF_CUSTOM waveform only */
230 	int16_t			*custom_data;	/* FF_CUSTOM waveform only */
231 };
232 
233 struct ff_rumble_effect {
234 	uint16_t	strong_magnitude;	/* magnitude of the heavy motor */
235 	uint16_t	weak_magnitude;		/* magnitude of the light motor */
236 };
237 
238 /*
239  * Force feedback effect types
240  */
241 
242 #define	FF_RUMBLE	0x50
243 #define	FF_PERIODIC	0x51
244 #define	FF_CONSTANT	0x52
245 #define	FF_SPRING	0x53
246 #define	FF_FRICTION	0x54
247 #define	FF_DAMPER	0x55
248 #define	FF_INERTIA	0x56
249 #define	FF_RAMP		0x57
250 
251 #define	FF_EFFECT_MIN	FF_RUMBLE
252 #define	FF_EFFECT_MAX	FF_RAMP
253 
254 struct ff_effect {
255 	uint16_t		type;
256 	int16_t			id;
257 	uint16_t		direction;	/* [0 .. 360) degrees -> [0 .. 0x10000) */
258 	struct ff_trigger	trigger;
259 	struct ff_replay	replay;
260 
261 	union {
262 		struct ff_constant_effect	constant;
263 		struct ff_ramp_effect		ramp;
264 		struct ff_periodic_effect	periodic;
265 		struct ff_condition_effect	condition[2]; /* One for each axis */
266 		struct ff_rumble_effect		rumble;
267 	} u;
268 };
269 
270 /*
271  * force feedback device properties
272  */
273 
274 #define	FF_GAIN		0x60
275 #define	FF_AUTOCENTER	0x61
276 
277 #define	FF_MAX		0x7f
278 #define	FF_CNT		(FF_MAX+1)
279 
280 #endif /* _EVDEV_INPUT_H */
281