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
39struct evdev_dev;
40
41typedef int (evdev_open_t)(struct evdev_dev *);
42typedef int (evdev_close_t)(struct evdev_dev *);
43typedef void (evdev_event_t)(struct evdev_dev *, uint16_t, uint16_t, int32_t);
44typedef void (evdev_keycode_t)(struct evdev_dev *,
45    struct input_keymap_entry *);
46
47/*
48 * Keyboard and mouse events recipient mask.
49 * evdev_rcpt_mask variable should be respected by keyboard and mouse drivers
50 * that are able to send events through both evdev and sysmouse/kbdmux
51 * interfaces so user can choose prefered one to not receive one event twice.
52 */
53#define	EVDEV_RCPT_SYSMOUSE	(1<<0)
54#define	EVDEV_RCPT_KBDMUX	(1<<1)
55#define	EVDEV_RCPT_HW_MOUSE	(1<<2)
56#define	EVDEV_RCPT_HW_KBD	(1<<3)
57extern int evdev_rcpt_mask;
58/*
59 * Sysmouse protocol does not support horizontal wheel movement reporting.
60 * To overcome this limitation different drivers use different sysmouse proto
61 * extensions. Set kern.evdev.sysmouse_t_axis to tell sysmouse evdev driver
62 * which protocol extension is used.
63 * 0 - do not extract horizontal wheel movement (default).
64 * 1 - ums(4) horizontal wheel encoding. T-axis is mapped to buttons 6 and 7
65 * 2 - psm(4) wheels encoding: z = 1,-1 - vert. wheel, z = 2,-2 - horiz. wheel
66 */
67enum
68{
69	EVDEV_SYSMOUSE_T_AXIS_NONE = 0,
70	EVDEV_SYSMOUSE_T_AXIS_UMS = 1,
71	EVDEV_SYSMOUSE_T_AXIS_PSM = 2,
72};
73extern int evdev_sysmouse_t_axis;
74
75#define	ABS_MT_FIRST	ABS_MT_TOUCH_MAJOR
76#define	ABS_MT_LAST	ABS_MT_TOOL_Y
77#define	ABS_IS_MT(x)	((x) >= ABS_MT_FIRST && (x) <= ABS_MT_LAST)
78#define	ABS_MT_INDEX(x)	((x) - ABS_MT_FIRST)
79#define	MT_CNT		(ABS_MT_INDEX(ABS_MT_LAST) + 1)
80/* Multitouch protocol type A */
81#define	MAX_MT_REPORTS	5
82/* Multitouch protocol type B interface */
83#define	MAX_MT_SLOTS	16
84
85#define	EVDEV_FLAG_SOFTREPEAT	0x00	/* use evdev to repeat keys */
86#define	EVDEV_FLAG_MT_STCOMPAT	0x01	/* autogenerate ST-compatible events
87					 * for MT protocol type B reports */
88#define	EVDEV_FLAG_MT_AUTOREL	0x02	/* Autorelease MT-slots not listed in
89					 * current MT protocol type B report */
90#define	EVDEV_FLAG_MAX		0x1F
91#define	EVDEV_FLAG_CNT		(EVDEV_FLAG_MAX + 1)
92
93struct evdev_methods
94{
95	evdev_open_t		*ev_open;
96	evdev_close_t		*ev_close;
97	evdev_event_t		*ev_event;
98	evdev_keycode_t		*ev_get_keycode;
99	evdev_keycode_t		*ev_set_keycode;
100};
101
102/* Input device interface: */
103struct evdev_dev *evdev_alloc(void);
104void evdev_free(struct evdev_dev *);
105void evdev_set_name(struct evdev_dev *, const char *);
106void evdev_set_id(struct evdev_dev *, uint16_t, uint16_t, uint16_t, uint16_t);
107void evdev_set_phys(struct evdev_dev *, const char *);
108void evdev_set_serial(struct evdev_dev *, const char *);
109void evdev_set_methods(struct evdev_dev *, void *,
110    const struct evdev_methods *);
111int evdev_register(struct evdev_dev *);
112int evdev_register_mtx(struct evdev_dev *, struct mtx *);
113int evdev_unregister(struct evdev_dev *);
114int evdev_push_event(struct evdev_dev *, uint16_t, uint16_t, int32_t);
115void evdev_support_prop(struct evdev_dev *, uint16_t);
116void evdev_support_event(struct evdev_dev *, uint16_t);
117void evdev_support_key(struct evdev_dev *, uint16_t);
118void evdev_support_rel(struct evdev_dev *, uint16_t);
119void evdev_support_abs(struct evdev_dev *, uint16_t, int32_t, int32_t, int32_t,
120   int32_t, int32_t, int32_t);
121void evdev_support_msc(struct evdev_dev *, uint16_t);
122void evdev_support_led(struct evdev_dev *, uint16_t);
123void evdev_support_snd(struct evdev_dev *, uint16_t);
124void evdev_support_sw(struct evdev_dev *, uint16_t);
125void evdev_set_repeat_params(struct evdev_dev *, uint16_t, int);
126int evdev_set_report_size(struct evdev_dev *, size_t);
127void evdev_set_flag(struct evdev_dev *, uint16_t);
128void *evdev_get_softc(struct evdev_dev *);
129
130/* Multitouch related functions: */
131int32_t evdev_get_mt_slot_by_tracking_id(struct evdev_dev *, int32_t);
132void evdev_support_nfingers(struct evdev_dev *, int32_t);
133void evdev_support_mt_compat(struct evdev_dev *);
134void evdev_push_nfingers(struct evdev_dev *, int32_t);
135void evdev_push_mt_compat(struct evdev_dev *);
136
137/* Utility functions: */
138uint16_t evdev_hid2key(int);
139void evdev_support_all_known_keys(struct evdev_dev *);
140uint16_t evdev_scancode2key(int *, int);
141void evdev_push_mouse_btn(struct evdev_dev *, int);
142void evdev_push_leds(struct evdev_dev *, int);
143void evdev_push_repeats(struct evdev_dev *, keyboard_t *);
144
145/* Event reporting shortcuts: */
146static __inline int
147evdev_sync(struct evdev_dev *evdev)
148{
149
150	return (evdev_push_event(evdev, EV_SYN, SYN_REPORT, 1));
151}
152
153static __inline int
154evdev_mt_sync(struct evdev_dev *evdev)
155{
156
157	return (evdev_push_event(evdev, EV_SYN, SYN_MT_REPORT, 1));
158}
159
160static __inline int
161evdev_push_key(struct evdev_dev *evdev, uint16_t code, int32_t value)
162{
163
164	return (evdev_push_event(evdev, EV_KEY, code, value != 0));
165}
166
167static __inline int
168evdev_push_rel(struct evdev_dev *evdev, uint16_t code, int32_t value)
169{
170
171	return (evdev_push_event(evdev, EV_REL, code, value));
172}
173
174static __inline int
175evdev_push_abs(struct evdev_dev *evdev, uint16_t code, int32_t value)
176{
177
178	return (evdev_push_event(evdev, EV_ABS, code, value));
179}
180
181static __inline int
182evdev_push_msc(struct evdev_dev *evdev, uint16_t code, int32_t value)
183{
184
185	return (evdev_push_event(evdev, EV_MSC, code, value));
186}
187
188static __inline int
189evdev_push_led(struct evdev_dev *evdev, uint16_t code, int32_t value)
190{
191
192	return (evdev_push_event(evdev, EV_LED, code, value != 0));
193}
194
195static __inline int
196evdev_push_snd(struct evdev_dev *evdev, uint16_t code, int32_t value)
197{
198
199	return (evdev_push_event(evdev, EV_SND, code, value));
200}
201
202static __inline int
203evdev_push_sw(struct evdev_dev *evdev, uint16_t code, int32_t value)
204{
205
206	return (evdev_push_event(evdev, EV_SW, code, value != 0));
207}
208
209#endif	/* _DEV_EVDEV_EVDEV_H */
210