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freebsd-dev/sys/dev/evdev/evdev.h
Vladimir Kondratyev c6e809423f evdev: Disable value normalization and state filtering for SND events. 
Some events can take sound pitch as a value so can not be represented
as binary on/off events. Tracking for on/off state is left in place
as it is a part of the evdev API.

Reviewed by:		gonzo
Approved by:		gonzo (mentor)
MFC after:		2 weeks
Differential Revision:	https://reviews.freebsd.org/D12676
2017-11-01 22:33:44 +00:00

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/*-
* Copyright (c) 2014 Jakub Wojciech Klama <jceel@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _DEV_EVDEV_EVDEV_H
#define _DEV_EVDEV_EVDEV_H
#include <sys/types.h>
#include <sys/kbio.h>
#include <dev/evdev/input.h>
#include <dev/kbd/kbdreg.h>
#define NAMELEN 80
struct evdev_dev;
typedef int (evdev_open_t)(struct evdev_dev *, void *);
typedef void (evdev_close_t)(struct evdev_dev *, void *);
typedef void (evdev_event_t)(struct evdev_dev *, void *, uint16_t,
uint16_t, int32_t);
typedef void (evdev_keycode_t)(struct evdev_dev *, void *,
struct input_keymap_entry *);
/*
* Keyboard and mouse events recipient mask.
* evdev_rcpt_mask variable should be respected by keyboard and mouse drivers
* that are able to send events through both evdev and sysmouse/kbdmux
* interfaces so user can choose prefered one to not receive one event twice.
*/
#define EVDEV_RCPT_SYSMOUSE (1<<0)
#define EVDEV_RCPT_KBDMUX (1<<1)
#define EVDEV_RCPT_HW_MOUSE (1<<2)
#define EVDEV_RCPT_HW_KBD (1<<3)
extern int evdev_rcpt_mask;
/*
* Sysmouse protocol does not support horizontal wheel movement reporting.
* To overcome this limitation different drivers use different sysmouse proto
* extensions. Set kern.evdev.sysmouse_t_axis to tell sysmouse evdev driver
* which protocol extension is used.
* 0 - do not extract horizontal wheel movement (default).
* 1 - ums(4) horizontal wheel encoding. T-axis is mapped to buttons 6 and 7
* 2 - psm(4) wheels encoding: z = 1,-1 - vert. wheel, z = 2,-2 - horiz. wheel
*/
enum
{
EVDEV_SYSMOUSE_T_AXIS_NONE = 0,
EVDEV_SYSMOUSE_T_AXIS_UMS = 1,
EVDEV_SYSMOUSE_T_AXIS_PSM = 2,
};
extern int evdev_sysmouse_t_axis;
#define ABS_MT_FIRST ABS_MT_TOUCH_MAJOR
#define ABS_MT_LAST ABS_MT_TOOL_Y
#define ABS_IS_MT(x) ((x) >= ABS_MT_FIRST && (x) <= ABS_MT_LAST)
#define ABS_MT_INDEX(x) ((x) - ABS_MT_FIRST)
#define MT_CNT (ABS_MT_INDEX(ABS_MT_LAST) + 1)
/* Multitouch protocol type A */
#define MAX_MT_REPORTS 5
/* Multitouch protocol type B interface */
#define MAX_MT_SLOTS 16
#define EVDEV_FLAG_SOFTREPEAT 0x00 /* use evdev to repeat keys */
#define EVDEV_FLAG_MT_STCOMPAT 0x01 /* autogenerate ST-compatible events
* for MT protocol type B reports */
#define EVDEV_FLAG_MT_AUTOREL 0x02 /* Autorelease MT-slots not listed in
* current MT protocol type B report */
#define EVDEV_FLAG_MAX 0x1F
#define EVDEV_FLAG_CNT (EVDEV_FLAG_MAX + 1)
struct evdev_methods
{
evdev_open_t *ev_open;
evdev_close_t *ev_close;
evdev_event_t *ev_event;
evdev_keycode_t *ev_get_keycode;
evdev_keycode_t *ev_set_keycode;
};
/* Input device interface: */
struct evdev_dev *evdev_alloc(void);
void evdev_free(struct evdev_dev *);
void evdev_set_name(struct evdev_dev *, const char *);
void evdev_set_id(struct evdev_dev *, uint16_t, uint16_t, uint16_t, uint16_t);
void evdev_set_phys(struct evdev_dev *, const char *);
void evdev_set_serial(struct evdev_dev *, const char *);
void evdev_set_methods(struct evdev_dev *, void *,
const struct evdev_methods *);
int evdev_register(struct evdev_dev *);
int evdev_register_mtx(struct evdev_dev *, struct mtx *);
int evdev_unregister(struct evdev_dev *);
int evdev_push_event(struct evdev_dev *, uint16_t, uint16_t, int32_t);
void evdev_support_prop(struct evdev_dev *, uint16_t);
void evdev_support_event(struct evdev_dev *, uint16_t);
void evdev_support_key(struct evdev_dev *, uint16_t);
void evdev_support_rel(struct evdev_dev *, uint16_t);
void evdev_support_abs(struct evdev_dev *, uint16_t, int32_t, int32_t, int32_t,
int32_t, int32_t, int32_t);
void evdev_support_msc(struct evdev_dev *, uint16_t);
void evdev_support_led(struct evdev_dev *, uint16_t);
void evdev_support_snd(struct evdev_dev *, uint16_t);
void evdev_support_sw(struct evdev_dev *, uint16_t);
void evdev_set_repeat_params(struct evdev_dev *, uint16_t, int);
int evdev_set_report_size(struct evdev_dev *, size_t);
void evdev_set_flag(struct evdev_dev *, uint16_t);
/* Multitouch related functions: */
int32_t evdev_get_mt_slot_by_tracking_id(struct evdev_dev *, int32_t);
void evdev_support_nfingers(struct evdev_dev *, int32_t);
void evdev_support_mt_compat(struct evdev_dev *);
void evdev_push_nfingers(struct evdev_dev *, int32_t);
void evdev_push_mt_compat(struct evdev_dev *);
/* Utility functions: */
uint16_t evdev_hid2key(int);
void evdev_support_all_known_keys(struct evdev_dev *);
uint16_t evdev_scancode2key(int *, int);
void evdev_push_mouse_btn(struct evdev_dev *, int);
void evdev_push_leds(struct evdev_dev *, int);
void evdev_push_repeats(struct evdev_dev *, keyboard_t *);
evdev_event_t evdev_ev_kbd_event;
/* Event reporting shortcuts: */
static __inline int
evdev_sync(struct evdev_dev *evdev)
{
return (evdev_push_event(evdev, EV_SYN, SYN_REPORT, 1));
}
static __inline int
evdev_mt_sync(struct evdev_dev *evdev)
{
return (evdev_push_event(evdev, EV_SYN, SYN_MT_REPORT, 1));
}
static __inline int
evdev_push_key(struct evdev_dev *evdev, uint16_t code, int32_t value)
{
return (evdev_push_event(evdev, EV_KEY, code, value != 0));
}
static __inline int
evdev_push_rel(struct evdev_dev *evdev, uint16_t code, int32_t value)
{
return (evdev_push_event(evdev, EV_REL, code, value));
}
static __inline int
evdev_push_abs(struct evdev_dev *evdev, uint16_t code, int32_t value)
{
return (evdev_push_event(evdev, EV_ABS, code, value));
}
static __inline int
evdev_push_msc(struct evdev_dev *evdev, uint16_t code, int32_t value)
{
return (evdev_push_event(evdev, EV_MSC, code, value));
}
static __inline int
evdev_push_led(struct evdev_dev *evdev, uint16_t code, int32_t value)
{
return (evdev_push_event(evdev, EV_LED, code, value != 0));
}
static __inline int
evdev_push_snd(struct evdev_dev *evdev, uint16_t code, int32_t value)
{
return (evdev_push_event(evdev, EV_SND, code, value));
}
static __inline int
evdev_push_sw(struct evdev_dev *evdev, uint16_t code, int32_t value)
{
return (evdev_push_event(evdev, EV_SW, code, value != 0));
}
#endif /* _DEV_EVDEV_EVDEV_H */
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