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/epoch.h>
34#include <sys/kbio.h>
35#include <dev/evdev/input.h>
36#include <dev/kbd/kbdreg.h>
37
38#define	NAMELEN		80
39
40struct evdev_dev;
41
42typedef int (evdev_open_t)(struct evdev_dev *);
43typedef int (evdev_close_t)(struct evdev_dev *);
44typedef void (evdev_event_t)(struct evdev_dev *, uint16_t, uint16_t, int32_t);
45typedef void (evdev_keycode_t)(struct evdev_dev *,
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)
58extern int evdev_rcpt_mask;
59/*
60 * Sysmouse protocol does not support horizontal wheel movement reporting.
61 * To overcome this limitation different drivers use different sysmouse proto
62 * extensions. Set kern.evdev.sysmouse_t_axis to tell sysmouse evdev driver
63 * which protocol extension is used.
64 * 0 - do not extract horizontal wheel movement (default).
65 * 1 - ums(4) horizontal wheel encoding. T-axis is mapped to buttons 6 and 7
66 * 2 - psm(4) wheels encoding: z = 1,-1 - vert. wheel, z = 2,-2 - horiz. wheel
67 */
68enum
69{
70	EVDEV_SYSMOUSE_T_AXIS_NONE = 0,
71	EVDEV_SYSMOUSE_T_AXIS_UMS = 1,
72	EVDEV_SYSMOUSE_T_AXIS_PSM = 2,
73};
74extern int evdev_sysmouse_t_axis;
75
76#define	ABS_MT_FIRST	ABS_MT_TOUCH_MAJOR
77#define	ABS_MT_LAST	ABS_MT_TOOL_Y
78#define	ABS_IS_MT(x)	((x) >= ABS_MT_FIRST && (x) <= ABS_MT_LAST)
79#define	ABS_MT_INDEX(x)	((x) - ABS_MT_FIRST)
80#define	MT_CNT		(ABS_MT_INDEX(ABS_MT_LAST) + 1)
81/* Multitouch protocol type A */
82#define	MAX_MT_REPORTS	5
83/* Multitouch protocol type B interface */
84#define	MAX_MT_SLOTS	16
85
86#define	EVDEV_FLAG_SOFTREPEAT	0x00	/* use evdev to repeat keys */
87#define	EVDEV_FLAG_MT_STCOMPAT	0x01	/* autogenerate ST-compatible events
88					 * for MT protocol type B reports */
89#define	EVDEV_FLAG_MT_AUTOREL	0x02	/* Autorelease MT-slots not listed in
90					 * current MT protocol type B report */
91#define	EVDEV_FLAG_EXT_EPOCH	0x03	/* evdev_push_* is allways called with
92					 * input (global) epoch entered */
93#define	EVDEV_FLAG_MAX		0x1F
94#define	EVDEV_FLAG_CNT		(EVDEV_FLAG_MAX + 1)
95
96struct evdev_methods
97{
98	evdev_open_t		*ev_open;
99	evdev_close_t		*ev_close;
100	evdev_event_t		*ev_event;
101	evdev_keycode_t		*ev_get_keycode;
102	evdev_keycode_t		*ev_set_keycode;
103};
104
105/* Input device interface: */
106struct evdev_dev *evdev_alloc(void);
107void evdev_free(struct evdev_dev *);
108void evdev_set_name(struct evdev_dev *, const char *);
109void evdev_set_id(struct evdev_dev *, uint16_t, uint16_t, uint16_t, uint16_t);
110void evdev_set_phys(struct evdev_dev *, const char *);
111void evdev_set_serial(struct evdev_dev *, const char *);
112void evdev_set_methods(struct evdev_dev *, void *,
113    const struct evdev_methods *);
114int evdev_register(struct evdev_dev *);
115int evdev_register_mtx(struct evdev_dev *, struct mtx *);
116int evdev_unregister(struct evdev_dev *);
117int evdev_push_event(struct evdev_dev *, uint16_t, uint16_t, int32_t);
118void evdev_support_prop(struct evdev_dev *, uint16_t);
119void evdev_support_event(struct evdev_dev *, uint16_t);
120void evdev_support_key(struct evdev_dev *, uint16_t);
121void evdev_support_rel(struct evdev_dev *, uint16_t);
122void evdev_support_abs(struct evdev_dev *, uint16_t, int32_t, int32_t, int32_t,
123   int32_t, int32_t);
124void evdev_support_msc(struct evdev_dev *, uint16_t);
125void evdev_support_led(struct evdev_dev *, uint16_t);
126void evdev_support_snd(struct evdev_dev *, uint16_t);
127void evdev_support_sw(struct evdev_dev *, uint16_t);
128void evdev_set_repeat_params(struct evdev_dev *, uint16_t, int);
129int evdev_set_report_size(struct evdev_dev *, size_t);
130void evdev_set_flag(struct evdev_dev *, uint16_t);
131void *evdev_get_softc(struct evdev_dev *);
132
133/* Multitouch related functions: */
134int32_t evdev_get_mt_slot_by_tracking_id(struct evdev_dev *, int32_t);
135void evdev_support_nfingers(struct evdev_dev *, int32_t);
136void evdev_support_mt_compat(struct evdev_dev *);
137void evdev_push_nfingers(struct evdev_dev *, int32_t);
138void evdev_push_mt_compat(struct evdev_dev *);
139
140/* Utility functions: */
141uint16_t evdev_hid2key(int);
142void evdev_support_all_known_keys(struct evdev_dev *);
143uint16_t evdev_scancode2key(int *, int);
144void evdev_push_mouse_btn(struct evdev_dev *, int);
145void evdev_push_leds(struct evdev_dev *, int);
146void evdev_push_repeats(struct evdev_dev *, keyboard_t *);
147
148/* Event reporting shortcuts: */
149static __inline int
150evdev_sync(struct evdev_dev *evdev)
151{
152
153	return (evdev_push_event(evdev, EV_SYN, SYN_REPORT, 1));
154}
155
156static __inline int
157evdev_mt_sync(struct evdev_dev *evdev)
158{
159
160	return (evdev_push_event(evdev, EV_SYN, SYN_MT_REPORT, 1));
161}
162
163static __inline int
164evdev_push_key(struct evdev_dev *evdev, uint16_t code, int32_t value)
165{
166
167	return (evdev_push_event(evdev, EV_KEY, code, value != 0));
168}
169
170static __inline int
171evdev_push_rel(struct evdev_dev *evdev, uint16_t code, int32_t value)
172{
173
174	return (evdev_push_event(evdev, EV_REL, code, value));
175}
176
177static __inline int
178evdev_push_abs(struct evdev_dev *evdev, uint16_t code, int32_t value)
179{
180
181	return (evdev_push_event(evdev, EV_ABS, code, value));
182}
183
184static __inline int
185evdev_push_msc(struct evdev_dev *evdev, uint16_t code, int32_t value)
186{
187
188	return (evdev_push_event(evdev, EV_MSC, code, value));
189}
190
191static __inline int
192evdev_push_led(struct evdev_dev *evdev, uint16_t code, int32_t value)
193{
194
195	return (evdev_push_event(evdev, EV_LED, code, value != 0));
196}
197
198static __inline int
199evdev_push_snd(struct evdev_dev *evdev, uint16_t code, int32_t value)
200{
201
202	return (evdev_push_event(evdev, EV_SND, code, value));
203}
204
205static __inline int
206evdev_push_sw(struct evdev_dev *evdev, uint16_t code, int32_t value)
207{
208
209	return (evdev_push_event(evdev, EV_SW, code, value != 0));
210}
211
212#endif	/* _DEV_EVDEV_EVDEV_H */
213