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/*
* Copyright © 2010 Intel Corporation
* Copyright © 2013 Jonas Ådahl
* Copyright © 2013-2017 Red Hat, Inc.
* Copyright © 2017 James Ye <jye836@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#ifndef EVDEV_FALLBACK_H
#define EVDEV_FALLBACK_H
#include "evdev.h"
enum debounce_state {
DEBOUNCE_STATE_IS_UP = 100,
DEBOUNCE_STATE_IS_DOWN,
DEBOUNCE_STATE_DOWN_WAITING,
DEBOUNCE_STATE_RELEASE_PENDING,
DEBOUNCE_STATE_RELEASE_DELAYED,
DEBOUNCE_STATE_RELEASE_WAITING,
DEBOUNCE_STATE_MAYBE_SPURIOUS,
DEBOUNCE_STATE_RELEASED,
DEBOUNCE_STATE_PRESS_PENDING,
DEBOUNCE_STATE_DISABLED = 999,
};
struct fallback_dispatch {
struct evdev_dispatch base;
struct evdev_device *device;
struct libinput_device_config_calibration calibration;
struct {
bool is_enabled;
int angle;
struct matrix matrix;
struct libinput_device_config_rotation config;
} rotation;
struct {
struct device_coords point;
int32_t seat_slot;
} abs;
struct {
int slot;
struct mt_slot *slots;
size_t slots_len;
bool want_hysteresis;
struct device_coords hysteresis_margin;
} mt;
struct device_coords rel;
struct device_coords wheel;
struct {
/* The struct for the tablet mode switch device itself */
struct {
int state;
} sw;
/* The struct for other devices listening to the tablet mode
switch */
struct {
struct evdev_device *sw_device;
struct libinput_event_listener listener;
} other;
} tablet_mode;
/* Bitmask of pressed keys used to ignore initial release events from
* the kernel. */
unsigned long hw_key_mask[NLONGS(KEY_CNT)];
unsigned long last_hw_key_mask[NLONGS(KEY_CNT)];
enum evdev_event_type pending_event;
/* true if we're reading events (i.e. not suspended) but we're
ignoring them */
bool ignore_events;
struct {
unsigned int button_code;
uint64_t button_time;
struct libinput_timer timer;
struct libinput_timer timer_short;
enum debounce_state state;
bool spurious_enabled;
} debounce;
struct {
enum switch_reliability reliability;
bool is_closed;
bool is_closed_client_state;
/* We allow multiple paired keyboards for the lid switch
* listener. Only one keyboard should exist, but that can
* have more than one event node. And it's a list because
* otherwise the test suite run fails too often.
*/
struct list paired_keyboard_list;
} lid;
};
static inline struct fallback_dispatch*
fallback_dispatch(struct evdev_dispatch *dispatch)
{
evdev_verify_dispatch_type(dispatch, DISPATCH_FALLBACK);
return container_of(dispatch, struct fallback_dispatch, base);
}
enum key_type {
KEY_TYPE_NONE,
KEY_TYPE_KEY,
KEY_TYPE_BUTTON,
};
static inline enum key_type
get_key_type(uint16_t code)
{
switch (code) {
case BTN_TOOL_PEN:
case BTN_TOOL_RUBBER:
case BTN_TOOL_BRUSH:
case BTN_TOOL_PENCIL:
case BTN_TOOL_AIRBRUSH:
case BTN_TOOL_MOUSE:
case BTN_TOOL_LENS:
case BTN_TOOL_QUINTTAP:
case BTN_TOOL_DOUBLETAP:
case BTN_TOOL_TRIPLETAP:
case BTN_TOOL_QUADTAP:
case BTN_TOOL_FINGER:
case BTN_TOUCH:
return KEY_TYPE_NONE;
}
if (code >= KEY_ESC && code <= KEY_MICMUTE)
return KEY_TYPE_KEY;
if (code >= BTN_MISC && code <= BTN_GEAR_UP)
return KEY_TYPE_BUTTON;
if (code >= KEY_OK && code <= KEY_LIGHTS_TOGGLE)
return KEY_TYPE_KEY;
if (code >= BTN_DPAD_UP && code <= BTN_DPAD_RIGHT)
return KEY_TYPE_BUTTON;
if (code >= KEY_ALS_TOGGLE && code <= KEY_ONSCREEN_KEYBOARD)
return KEY_TYPE_KEY;
if (code >= BTN_TRIGGER_HAPPY && code <= BTN_TRIGGER_HAPPY40)
return KEY_TYPE_BUTTON;
return KEY_TYPE_NONE;
}
static inline void
hw_set_key_down(struct fallback_dispatch *dispatch, int code, int pressed)
{
long_set_bit_state(dispatch->hw_key_mask, code, pressed);
}
static inline bool
hw_key_has_changed(struct fallback_dispatch *dispatch, int code)
{
return long_bit_is_set(dispatch->hw_key_mask, code) !=
long_bit_is_set(dispatch->last_hw_key_mask, code);
}
static inline void
hw_key_update_last_state(struct fallback_dispatch *dispatch)
{
static_assert(sizeof(dispatch->hw_key_mask) ==
sizeof(dispatch->last_hw_key_mask),
"Mismatching key mask size");
memcpy(dispatch->last_hw_key_mask,
dispatch->hw_key_mask,
sizeof(dispatch->hw_key_mask));
}
static inline bool
hw_is_key_down(struct fallback_dispatch *dispatch, int code)
{
return long_bit_is_set(dispatch->hw_key_mask, code);
}
static inline int
get_key_down_count(struct evdev_device *device, int code)
{
return device->key_count[code];
}
void fallback_init_debounce(struct fallback_dispatch *dispatch);
void fallback_debounce_handle_state(struct fallback_dispatch *dispatch,
uint64_t time);
#endif
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