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weston/libweston/libinput-device.c

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/*
* Copyright © 2010 Intel Corporation
* Copyright © 2013 Jonas Ådahl
* Copyright 2017-2018 Collabora, Ltd.
* Copyright 2017-2018 General Electric Company
*
* 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"
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <linux/input.h>
#include <unistd.h>
#include <fcntl.h>
#include <assert.h>
#include <libinput.h>
#include <libweston/libweston.h>
#include "backend.h"
#include "libweston-internal.h"
#include "libinput-device.h"
#include "shared/helpers.h"
#include "shared/timespec-util.h"
#include "tablet-unstable-v2-server-protocol.h"
struct tablet_output_listener {
struct wl_listener base;
struct wl_list tablet_list;
};
void
evdev_led_update(struct evdev_device *device, enum weston_led weston_leds)
{
enum libinput_led leds = 0;
if (weston_leds & LED_NUM_LOCK)
leds |= LIBINPUT_LED_NUM_LOCK;
if (weston_leds & LED_CAPS_LOCK)
leds |= LIBINPUT_LED_CAPS_LOCK;
if (weston_leds & LED_SCROLL_LOCK)
leds |= LIBINPUT_LED_SCROLL_LOCK;
libinput_device_led_update(device->device, leds);
}
static void
ensure_pointer_capability(struct libinput_device *libinput_device)
{
struct evdev_device *device = libinput_device_get_user_data(libinput_device);
struct weston_seat *seat = device->seat;
if (!libinput_device_has_capability(libinput_device, LIBINPUT_DEVICE_CAP_POINTER))
return;
if (!(device->seat_caps & EVDEV_SEAT_POINTER)) {
weston_seat_init_pointer(seat);
device->seat_caps |= EVDEV_SEAT_POINTER;
}
}
static void
handle_keyboard_key(struct libinput_device *libinput_device,
struct libinput_event_keyboard *keyboard_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
int key_state =
libinput_event_keyboard_get_key_state(keyboard_event);
int seat_key_count =
libinput_event_keyboard_get_seat_key_count(keyboard_event);
struct timespec time;
/* Ignore key events that are not seat wide state changes. */
if ((key_state == LIBINPUT_KEY_STATE_PRESSED &&
seat_key_count != 1) ||
(key_state == LIBINPUT_KEY_STATE_RELEASED &&
seat_key_count != 0))
return;
timespec_from_usec(&time,
libinput_event_keyboard_get_time_usec(keyboard_event));
notify_key(device->seat, &time,
libinput_event_keyboard_get_key(keyboard_event),
key_state, STATE_UPDATE_AUTOMATIC);
}
static bool
handle_pointer_motion(struct libinput_device *libinput_device,
struct libinput_event_pointer *pointer_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
struct weston_pointer_motion_event event = { 0 };
struct timespec time;
double dx_unaccel, dy_unaccel;
ensure_pointer_capability(libinput_device);
timespec_from_usec(&time,
libinput_event_pointer_get_time_usec(pointer_event));
dx_unaccel = libinput_event_pointer_get_dx_unaccelerated(pointer_event);
dy_unaccel = libinput_event_pointer_get_dy_unaccelerated(pointer_event);
event = (struct weston_pointer_motion_event) {
.mask = WESTON_POINTER_MOTION_REL |
WESTON_POINTER_MOTION_REL_UNACCEL,
.time = time,
};
event.rel = weston_coord(libinput_event_pointer_get_dx(pointer_event),
libinput_event_pointer_get_dy(pointer_event));
event.rel_unaccel = weston_coord(dx_unaccel, dy_unaccel);
notify_motion(device->seat, &time, &event);
return true;
}
static bool
handle_pointer_motion_absolute(
struct libinput_device *libinput_device,
struct libinput_event_pointer *pointer_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
struct weston_output *output = device->output;
struct weston_coord_global pos;
struct timespec time;
double x, y;
uint32_t width, height;
ensure_pointer_capability(libinput_device);
if (!output)
return false;
timespec_from_usec(&time,
libinput_event_pointer_get_time_usec(pointer_event));
width = device->output->current_mode->width;
height = device->output->current_mode->height;
x = libinput_event_pointer_get_absolute_x_transformed(pointer_event,
width);
y = libinput_event_pointer_get_absolute_y_transformed(pointer_event,
height);
pos = weston_coord_global_from_output_point(x, y, output);
notify_motion_absolute(device->seat, &time, pos);
return true;
}
static bool
handle_pointer_button(struct libinput_device *libinput_device,
struct libinput_event_pointer *pointer_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
int button_state =
libinput_event_pointer_get_button_state(pointer_event);
int seat_button_count =
libinput_event_pointer_get_seat_button_count(pointer_event);
struct timespec time;
ensure_pointer_capability(libinput_device);
/* Ignore button events that are not seat wide state changes. */
if ((button_state == LIBINPUT_BUTTON_STATE_PRESSED &&
seat_button_count != 1) ||
(button_state == LIBINPUT_BUTTON_STATE_RELEASED &&
seat_button_count != 0))
return false;
timespec_from_usec(&time,
libinput_event_pointer_get_time_usec(pointer_event));
notify_button(device->seat, &time,
libinput_event_pointer_get_button(pointer_event),
button_state);
return true;
}
static double
normalize_scroll(struct libinput_event_pointer *pointer_event,
enum libinput_pointer_axis axis)
{
enum libinput_pointer_axis_source source;
double value = 0.0;
source = libinput_event_pointer_get_axis_source(pointer_event);
/* libinput < 0.8 sent wheel click events with value 10. Since 0.8
the value is the angle of the click in degrees. To keep
backwards-compat with existing clients, we just send multiples of
the click count.
*/
switch (source) {
case LIBINPUT_POINTER_AXIS_SOURCE_WHEEL:
value = 10 * libinput_event_pointer_get_axis_value_discrete(
pointer_event,
axis);
break;
case LIBINPUT_POINTER_AXIS_SOURCE_FINGER:
case LIBINPUT_POINTER_AXIS_SOURCE_CONTINUOUS:
value = libinput_event_pointer_get_axis_value(pointer_event,
axis);
break;
default:
assert(!"unhandled event source in normalize_scroll");
}
return value;
}
static int32_t
get_axis_discrete(struct libinput_event_pointer *pointer_event,
enum libinput_pointer_axis axis)
{
enum libinput_pointer_axis_source source;
source = libinput_event_pointer_get_axis_source(pointer_event);
if (source != LIBINPUT_POINTER_AXIS_SOURCE_WHEEL)
return 0;
return libinput_event_pointer_get_axis_value_discrete(pointer_event,
axis);
}
static bool
handle_pointer_axis(struct libinput_device *libinput_device,
struct libinput_event_pointer *pointer_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
double vert, horiz;
int32_t vert_discrete, horiz_discrete;
enum libinput_pointer_axis axis;
struct weston_pointer_axis_event weston_event;
enum libinput_pointer_axis_source source;
uint32_t wl_axis_source;
bool has_vert, has_horiz;
struct timespec time;
ensure_pointer_capability(libinput_device);
has_vert = libinput_event_pointer_has_axis(pointer_event,
LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL);
has_horiz = libinput_event_pointer_has_axis(pointer_event,
LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL);
if (!has_vert && !has_horiz)
return false;
source = libinput_event_pointer_get_axis_source(pointer_event);
switch (source) {
case LIBINPUT_POINTER_AXIS_SOURCE_WHEEL:
wl_axis_source = WL_POINTER_AXIS_SOURCE_WHEEL;
break;
case LIBINPUT_POINTER_AXIS_SOURCE_FINGER:
wl_axis_source = WL_POINTER_AXIS_SOURCE_FINGER;
break;
case LIBINPUT_POINTER_AXIS_SOURCE_CONTINUOUS:
wl_axis_source = WL_POINTER_AXIS_SOURCE_CONTINUOUS;
break;
default:
weston_log_paced(&device->unknown_scroll_pacer, 5, 0,
"Unknown scroll source %d.\n", source);
return false;
}
notify_axis_source(device->seat, wl_axis_source);
timespec_from_usec(&time,
libinput_event_pointer_get_time_usec(pointer_event));
if (has_vert) {
axis = LIBINPUT_POINTER_AXIS_SCROLL_VERTICAL;
vert_discrete = get_axis_discrete(pointer_event, axis);
vert = normalize_scroll(pointer_event, axis);
weston_event.axis = WL_POINTER_AXIS_VERTICAL_SCROLL;
weston_event.value = vert;
weston_event.discrete = vert_discrete;
weston_event.has_discrete = (vert_discrete != 0);
notify_axis(device->seat, &time, &weston_event);
}
if (has_horiz) {
axis = LIBINPUT_POINTER_AXIS_SCROLL_HORIZONTAL;
horiz_discrete = get_axis_discrete(pointer_event, axis);
horiz = normalize_scroll(pointer_event, axis);
weston_event.axis = WL_POINTER_AXIS_HORIZONTAL_SCROLL;
weston_event.value = horiz;
weston_event.discrete = horiz_discrete;
weston_event.has_discrete = (horiz_discrete != 0);
notify_axis(device->seat, &time, &weston_event);
}
return true;
}
static struct weston_output *
touch_get_output(struct weston_touch_device *device)
{
struct evdev_device *evdev_device = device->backend_data;
return evdev_device->output;
}
static const char *
touch_get_calibration_head_name(struct weston_touch_device *device)
{
struct evdev_device *evdev_device = device->backend_data;
struct weston_output *output = evdev_device->output;
struct weston_head *head;
if (!output)
return NULL;
assert(output->enabled);
if (evdev_device->output_name)
return evdev_device->output_name;
/* No specific head was configured, so the association was made by
* the default rule. Just grab whatever head's name.
*/
wl_list_for_each(head, &output->head_list, output_link)
return head->name;
assert(0);
return NULL;
}
static void
touch_get_calibration(struct weston_touch_device *device,
struct weston_touch_device_matrix *cal)
{
struct evdev_device *evdev_device = device->backend_data;
libinput_device_config_calibration_get_matrix(evdev_device->device,
cal->m);
}
static void
do_set_calibration(struct evdev_device *evdev_device,
const struct weston_touch_device_matrix *cal)
{
enum libinput_config_status status;
weston_log("input device %s: applying calibration:\n",
libinput_device_get_sysname(evdev_device->device));
weston_log_continue(STAMP_SPACE " %f %f %f\n",
cal->m[0], cal->m[1], cal->m[2]);
weston_log_continue(STAMP_SPACE " %f %f %f\n",
cal->m[3], cal->m[4], cal->m[5]);
status = libinput_device_config_calibration_set_matrix(evdev_device->device,
cal->m);
if (status != LIBINPUT_CONFIG_STATUS_SUCCESS)
weston_log("Error: Failed to apply calibration.\n");
}
static void
touch_set_calibration(struct weston_touch_device *device,
const struct weston_touch_device_matrix *cal)
{
struct evdev_device *evdev_device = device->backend_data;
/* Stop output hotplug from reloading the WL_CALIBRATION values.
* libinput will maintain the latest calibration for us.
*/
evdev_device->override_wl_calibration = true;
do_set_calibration(evdev_device, cal);
}
static const struct weston_touch_device_ops touch_calibration_ops = {
.get_output = touch_get_output,
.get_calibration_head_name = touch_get_calibration_head_name,
.get_calibration = touch_get_calibration,
.set_calibration = touch_set_calibration
};
static struct weston_touch_device *
create_touch_device(struct evdev_device *device)
{
const struct weston_touch_device_ops *ops = NULL;
struct weston_touch_device *touch_device;
struct udev_device *udev_device;
if (libinput_device_config_calibration_has_matrix(device->device))
ops = &touch_calibration_ops;
udev_device = libinput_device_get_udev_device(device->device);
if (!udev_device)
return NULL;
touch_device = weston_touch_create_touch_device(device->seat->touch_state,
udev_device_get_syspath(udev_device),
device, ops);
udev_device_unref(udev_device);
if (!touch_device)
return NULL;
weston_log("Touchscreen - %s - %s\n",
libinput_device_get_name(device->device),
touch_device->syspath);
return touch_device;
}
static void
handle_touch_with_coords(struct libinput_device *libinput_device,
struct libinput_event_touch *touch_event,
int touch_type)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
double x;
double y;
struct weston_point2d_device_normalized norm;
uint32_t width, height;
struct timespec time;
int32_t slot;
struct weston_coord_global pos;
if (!device->output)
return;
timespec_from_usec(&time,
libinput_event_touch_get_time_usec(touch_event));
slot = libinput_event_touch_get_seat_slot(touch_event);
width = device->output->current_mode->width;
height = device->output->current_mode->height;
x = libinput_event_touch_get_x_transformed(touch_event, width);
y = libinput_event_touch_get_y_transformed(touch_event, height);
pos = weston_coord_global_from_output_point(x, y, device->output);
if (weston_touch_device_can_calibrate(device->touch_device)) {
norm.x = libinput_event_touch_get_x_transformed(touch_event, 1);
norm.y = libinput_event_touch_get_y_transformed(touch_event, 1);
notify_touch_normalized(device->touch_device, &time, slot,
&pos, &norm, touch_type);
} else {
notify_touch(device->touch_device, &time, slot,
&pos, touch_type);
}
}
static void
handle_touch_down(struct libinput_device *device,
struct libinput_event_touch *touch_event)
{
handle_touch_with_coords(device, touch_event, WL_TOUCH_DOWN);
}
static void
handle_touch_motion(struct libinput_device *device,
struct libinput_event_touch *touch_event)
{
handle_touch_with_coords(device, touch_event, WL_TOUCH_MOTION);
}
static void
handle_touch_up(struct libinput_device *libinput_device,
struct libinput_event_touch *touch_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
struct timespec time;
int32_t slot = libinput_event_touch_get_seat_slot(touch_event);
timespec_from_usec(&time,
libinput_event_touch_get_time_usec(touch_event));
notify_touch(device->touch_device, &time, slot, NULL, WL_TOUCH_UP);
}
static void
handle_touch_frame(struct libinput_device *libinput_device,
struct libinput_event_touch *touch_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
notify_touch_frame(device->touch_device);
}
static void
process_tablet_axis(struct weston_output *output, struct weston_tablet *tablet,
struct weston_tablet_tool *tool,
struct libinput_event_tablet_tool *axis_event)
{
struct timespec time;
const int NORMALIZED_AXIS_MAX = 65535;
timespec_from_usec(&time,
libinput_event_tablet_tool_get_time(axis_event));
if (libinput_event_tablet_tool_x_has_changed(axis_event) ||
libinput_event_tablet_tool_y_has_changed(axis_event)) {
double x, y;
uint32_t width, height;
struct weston_coord_global pos;
width = output->current_mode->width;
height = output->current_mode->height;
x = libinput_event_tablet_tool_get_x_transformed(axis_event,
width);
y = libinput_event_tablet_tool_get_y_transformed(axis_event,
height);
pos = weston_coord_global_from_output_point(x, y, output);
notify_tablet_tool_motion(tool, &time, pos);
}
if (libinput_event_tablet_tool_pressure_has_changed(axis_event)) {
double pressure;
pressure = libinput_event_tablet_tool_get_pressure(axis_event);
/* convert axis range [0.0, 1.0] to [0, 65535] */
pressure *= NORMALIZED_AXIS_MAX;
notify_tablet_tool_pressure(tool, &time, pressure);
}
if (libinput_event_tablet_tool_distance_has_changed(axis_event)) {
double distance;
distance = libinput_event_tablet_tool_get_distance(axis_event);
/* convert axis range [0.0, 1.0] to [0, 65535] */
distance *= NORMALIZED_AXIS_MAX;
notify_tablet_tool_distance(tool, &time, distance);
}
if (libinput_event_tablet_tool_tilt_x_has_changed(axis_event) ||
libinput_event_tablet_tool_tilt_y_has_changed(axis_event)) {
double tx, ty;
tx = libinput_event_tablet_tool_get_tilt_x(axis_event);
ty = libinput_event_tablet_tool_get_tilt_y(axis_event);
notify_tablet_tool_tilt(tool, &time,
wl_fixed_from_double(tx),
wl_fixed_from_double(ty));
}
}
static void
idle_notify_tablet_tool_frame(void *data)
{
struct weston_tablet_tool *tool = data;
notify_tablet_tool_frame(tool, &tool->frame_time);
timespec_from_nsec(&tool->frame_time, 0);
}
/*
* libinput does not provide frame information. So assume that all events that
* belong to the same hardware event have the same timestamp and are created
* together. Use an idle callback to delay the frame event until all events that
* blong together have been handled.
*/
static void
async_notify_tablet_tool_frame(struct weston_tablet_tool *tool,
struct timespec *time)
{
if (timespec_eq(&tool->frame_time, time))
return;
/* If this is a second timestamp, then push out the first frame and use
* the already queued callback for the new timestamp. Otherwise queue a
* new callback. */
if (!timespec_is_zero(&tool->frame_time))
notify_tablet_tool_frame(tool, &tool->frame_time);
else {
struct wl_event_loop *loop;
loop = wl_display_get_event_loop(tool->seat->compositor->wl_display);
wl_event_loop_add_idle(loop, idle_notify_tablet_tool_frame, tool);
}
tool->frame_time = *time;
}
static void
handle_tablet_proximity(struct libinput_device *libinput_device,
struct libinput_event_tablet_tool *proximity_event)
{
struct evdev_device *device;
struct weston_tablet *tablet;
struct weston_tablet_tool *tool;
struct libinput_tablet_tool *libinput_tool;
struct timespec time;
device = libinput_device_get_user_data(libinput_device);
timespec_from_usec(&time,
libinput_event_tablet_tool_get_time(proximity_event));
libinput_tool = libinput_event_tablet_tool_get_tool(proximity_event);
tool = libinput_tablet_tool_get_user_data(libinput_tool);
tablet = device->tablet;
if (libinput_event_tablet_tool_get_proximity_state(proximity_event) ==
LIBINPUT_TABLET_TOOL_PROXIMITY_STATE_OUT) {
notify_tablet_tool_proximity_out(tool, &time);
async_notify_tablet_tool_frame(tool, &time);
return;
}
if (!tool) {
uint64_t serial;
enum libinput_tablet_tool_type libinput_tool_type;
uint32_t type;
serial = libinput_tablet_tool_get_serial(libinput_tool);
libinput_tool_type = libinput_tablet_tool_get_type(libinput_tool);
switch (libinput_tool_type) {
case LIBINPUT_TABLET_TOOL_TYPE_PEN:
type = ZWP_TABLET_TOOL_V2_TYPE_PEN;
break;
case LIBINPUT_TABLET_TOOL_TYPE_ERASER:
type = ZWP_TABLET_TOOL_V2_TYPE_ERASER;
break;
default:
weston_log("Unknown libinput tool type %d\n",
libinput_tool_type);
return;
}
tool = weston_seat_add_tablet_tool(device->seat);
tool->serial = serial;
tool->hwid = libinput_tablet_tool_get_tool_id(libinput_tool);
tool->type = type;
tool->capabilities = 0;
if (libinput_tablet_tool_has_distance(libinput_tool))
tool->capabilities |= 1 << ZWP_TABLET_TOOL_V2_CAPABILITY_DISTANCE;
if (libinput_tablet_tool_has_pressure(libinput_tool))
tool->capabilities |= 1 << ZWP_TABLET_TOOL_V2_CAPABILITY_PRESSURE;
if (libinput_tablet_tool_has_tilt(libinput_tool))
tool->capabilities |= 1 << ZWP_TABLET_TOOL_V2_CAPABILITY_TILT;
/* unique tools are tracked globally, others per tablet */
if (libinput_tablet_tool_is_unique(libinput_tool))
wl_list_insert(&device->seat->tablet_tool_list, &tool->link);
else
wl_list_insert(&tablet->tool_list, &tool->link);
libinput_tablet_tool_set_user_data(libinput_tool, tool);
notify_tablet_tool_added(tool);
}
notify_tablet_tool_proximity_in(tool, &time, tablet);
process_tablet_axis(device->output, tablet, tool, proximity_event);
async_notify_tablet_tool_frame(tool, &time);
}
static void
handle_tablet_axis(struct libinput_device *libinput_device,
struct libinput_event_tablet_tool *axis_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
struct weston_tablet_tool *tool;
struct weston_tablet *tablet = device->tablet;
struct libinput_tablet_tool *libinput_tool;
struct timespec time;
libinput_tool = libinput_event_tablet_tool_get_tool(axis_event);
tool = libinput_tablet_tool_get_user_data(libinput_tool);
timespec_from_usec(&time,
libinput_event_tablet_tool_get_time(axis_event));
process_tablet_axis(device->output, tablet, tool, axis_event);
async_notify_tablet_tool_frame(tool, &time);
}
static void
handle_tablet_tip(struct libinput_device *libinput_device,
struct libinput_event_tablet_tool *tip_event)
{
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
struct weston_tablet_tool *tool;
struct libinput_tablet_tool *libinput_tool;
struct timespec time;
libinput_tool = libinput_event_tablet_tool_get_tool(tip_event);
tool = libinput_tablet_tool_get_user_data(libinput_tool);
timespec_from_usec(&time,
libinput_event_tablet_tool_get_time(tip_event));
process_tablet_axis(device->output, device->tablet, tool, tip_event);
if (libinput_event_tablet_tool_get_tip_state(tip_event) ==
LIBINPUT_TABLET_TOOL_TIP_DOWN)
notify_tablet_tool_down(tool, &time);
else
notify_tablet_tool_up(tool, &time);
async_notify_tablet_tool_frame(tool, &time);
}
static void
handle_tablet_button(struct libinput_device *libinput_device,
struct libinput_event_tablet_tool *button_event)
{
struct weston_tablet_tool *tool;
struct libinput_tablet_tool *libinput_tool;
struct timespec time;
uint32_t button;
enum zwp_tablet_tool_v2_button_state state;
libinput_tool = libinput_event_tablet_tool_get_tool(button_event);
tool = libinput_tablet_tool_get_user_data(libinput_tool);
timespec_from_usec(&time,
libinput_event_tablet_tool_get_time(button_event));
button = libinput_event_tablet_tool_get_button(button_event);
if (libinput_event_tablet_tool_get_button_state(button_event) ==
LIBINPUT_BUTTON_STATE_PRESSED)
state = ZWP_TABLET_TOOL_V2_BUTTON_STATE_PRESSED;
else
state = ZWP_TABLET_TOOL_V2_BUTTON_STATE_RELEASED;
notify_tablet_tool_button(tool, &time, button, state);
async_notify_tablet_tool_frame(tool, &time);
}
int
evdev_device_process_event(struct libinput_event *event)
{
struct libinput_device *libinput_device =
libinput_event_get_device(event);
struct evdev_device *device =
libinput_device_get_user_data(libinput_device);
int handled = 1;
bool need_frame = false;
if (!device)
return 0;
switch (libinput_event_get_type(event)) {
case LIBINPUT_EVENT_KEYBOARD_KEY:
handle_keyboard_key(libinput_device,
libinput_event_get_keyboard_event(event));
break;
case LIBINPUT_EVENT_POINTER_MOTION:
need_frame = handle_pointer_motion(libinput_device,
libinput_event_get_pointer_event(event));
break;
case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE:
need_frame = handle_pointer_motion_absolute(
libinput_device,
libinput_event_get_pointer_event(event));
break;
case LIBINPUT_EVENT_POINTER_BUTTON:
need_frame = handle_pointer_button(libinput_device,
libinput_event_get_pointer_event(event));
break;
case LIBINPUT_EVENT_POINTER_AXIS:
need_frame = handle_pointer_axis(
libinput_device,
libinput_event_get_pointer_event(event));
break;
case LIBINPUT_EVENT_TOUCH_DOWN:
handle_touch_down(libinput_device,
libinput_event_get_touch_event(event));
break;
case LIBINPUT_EVENT_TOUCH_MOTION:
handle_touch_motion(libinput_device,
libinput_event_get_touch_event(event));
break;
case LIBINPUT_EVENT_TOUCH_UP:
handle_touch_up(libinput_device,
libinput_event_get_touch_event(event));
break;
case LIBINPUT_EVENT_TOUCH_FRAME:
handle_touch_frame(libinput_device,
libinput_event_get_touch_event(event));
break;
case LIBINPUT_EVENT_TABLET_TOOL_PROXIMITY:
handle_tablet_proximity(libinput_device,
libinput_event_get_tablet_tool_event(event));
break;
case LIBINPUT_EVENT_TABLET_TOOL_TIP:
handle_tablet_tip(libinput_device,
libinput_event_get_tablet_tool_event(event));
break;
case LIBINPUT_EVENT_TABLET_TOOL_AXIS:
handle_tablet_axis(libinput_device,
libinput_event_get_tablet_tool_event(event));
break;
case LIBINPUT_EVENT_TABLET_TOOL_BUTTON:
handle_tablet_button(libinput_device,
libinput_event_get_tablet_tool_event(event));
break;
default:
handled = 0;
weston_log("unknown libinput event %d\n",
libinput_event_get_type(event));
}
if (need_frame)
notify_pointer_frame(device->seat);
return handled;
}
static void
notify_output_destroy(struct wl_listener *listener, void *data)
{
struct evdev_device *device =
container_of(listener,
struct evdev_device, output_destroy_listener);
evdev_device_set_output(device, NULL);
}
/**
* The WL_CALIBRATION property requires a pixel-specific matrix to be
* applied after scaling device coordinates to screen coordinates. libinput
* can't do that, so we need to convert the calibration to the normalized
* format libinput expects.
*/
void
evdev_device_set_calibration(struct evdev_device *device)
{
struct udev *udev;
struct udev_device *udev_device = NULL;
const char *sysname = libinput_device_get_sysname(device->device);
const char *calibration_values;
uint32_t width, height;
struct weston_touch_device_matrix calibration;
if (!libinput_device_config_calibration_has_matrix(device->device))
return;
/* If LIBINPUT_CALIBRATION_MATRIX was set to non-identity, we will not
* override it with WL_CALIBRATION. It also means we don't need an
* output to load a calibration. */
if (libinput_device_config_calibration_get_default_matrix(
device->device,
calibration.m) != 0)
return;
/* touch_set_calibration() has updated the values, do not load old
* values from WL_CALIBRATION.
*/
if (device->override_wl_calibration)
return;
if (!device->output) {
weston_log("input device %s has no enabled output associated "
"(%s named), skipping calibration for now.\n",
sysname, device->output_name ?: "none");
return;
}
width = device->output->width;
height = device->output->height;
if (width == 0 || height == 0)
return;
udev = udev_new();
if (!udev)
return;
udev_device = udev_device_new_from_subsystem_sysname(udev,
"input",
sysname);
if (!udev_device)
goto out;
calibration_values =
udev_device_get_property_value(udev_device,
"WL_CALIBRATION");
if (calibration_values) {
weston_log("Warning: input device %s has WL_CALIBRATION property set. "
"Support for it will be removed in the future. "
"Please use LIBINPUT_CALIBRATION_MATRIX instead.\n",
sysname);
}
if (!calibration_values || sscanf(calibration_values,
"%f %f %f %f %f %f",
&calibration.m[0],
&calibration.m[1],
&calibration.m[2],
&calibration.m[3],
&calibration.m[4],
&calibration.m[5]) != 6)
goto out;
/* normalize to a format libinput can use. There is a chance of
this being wrong if the width/height don't match the device
width/height but I'm not sure how to fix that */
calibration.m[2] /= width;
calibration.m[5] /= height;
do_set_calibration(device, &calibration);
weston_log_continue(STAMP_SPACE " raw translation %f %f for output %s\n",
calibration.m[2] * width,
calibration.m[5] * height,
device->output->name);
out:
if (udev_device)
udev_device_unref(udev_device);
udev_unref(udev);
}
void
evdev_device_set_output(struct evdev_device *device,
struct weston_output *output)
{
if (device->output == output)
return;
if (device->output_destroy_listener.notify) {
wl_list_remove(&device->output_destroy_listener.link);
device->output_destroy_listener.notify = NULL;
}
if (!output) {
weston_log("output for input device %s removed\n",
libinput_device_get_sysname(device->device));
device->output = NULL;
return;
}
weston_log("associating input device %s with output %s "
"(%s by udev)\n",
libinput_device_get_sysname(device->device),
output->name,
device->output_name ?: "none");
device->output = output;
device->output_destroy_listener.notify = notify_output_destroy;
wl_signal_add(&output->destroy_signal,
&device->output_destroy_listener);
evdev_device_set_calibration(device);
}
static void
evdev_device_init_tablet(struct evdev_device *device,
struct libinput_device *libinput_device,
struct weston_seat *seat)
{
struct weston_tablet *tablet;
struct udev_device *udev_device;
tablet = weston_seat_add_tablet(seat);
tablet->name = strdup(libinput_device_get_name(libinput_device));
tablet->vid = libinput_device_get_id_vendor(libinput_device);
tablet->pid = libinput_device_get_id_product(libinput_device);
udev_device = libinput_device_get_udev_device(libinput_device);
if (udev_device) {
tablet->path = udev_device_get_devnode(udev_device);
udev_device_unref(udev_device);
}
wl_list_insert(&seat->tablet_list, &tablet->link);
device->seat_caps |= EVDEV_SEAT_TABLET;
device->tablet = tablet;
notify_tablet_added(tablet);
}
struct evdev_device *
evdev_device_create(struct libinput_device *libinput_device,
struct weston_seat *seat)
{
struct evdev_device *device;
device = zalloc(sizeof *device);
if (device == NULL)
return NULL;
device->seat = seat;
wl_list_init(&device->link);
device->device = libinput_device;
if (libinput_device_has_capability(libinput_device,
LIBINPUT_DEVICE_CAP_KEYBOARD)) {
if (weston_seat_init_keyboard(seat, NULL) < 0) {
free(device);
return NULL;
}
device->seat_caps |= EVDEV_SEAT_KEYBOARD;
}
if (libinput_device_has_capability(libinput_device,
LIBINPUT_DEVICE_CAP_TOUCH)) {
if (weston_seat_init_touch(seat) < 0) {
/* maybe we're a keyboard + touch device thus we need
* to release the keyboard in case we couldn't make use
* of the touch */
if (device->seat_caps & EVDEV_SEAT_KEYBOARD)
weston_seat_release_keyboard(seat);
free(device);
return NULL;
}
device->seat_caps |= EVDEV_SEAT_TOUCH;
device->touch_device = create_touch_device(device);
}
if (libinput_device_has_capability(libinput_device,
LIBINPUT_DEVICE_CAP_TABLET_TOOL)) {
evdev_device_init_tablet(device, libinput_device, seat);
}
libinput_device_set_user_data(libinput_device, device);
libinput_device_ref(libinput_device);
return device;
}
void
evdev_device_destroy(struct evdev_device *device)
{
if (device->seat_caps & EVDEV_SEAT_POINTER)
weston_seat_release_pointer(device->seat);
if (device->seat_caps & EVDEV_SEAT_KEYBOARD)
weston_seat_release_keyboard(device->seat);
if (device->seat_caps & EVDEV_SEAT_TOUCH) {
weston_touch_device_destroy(device->touch_device);
weston_seat_release_touch(device->seat);
}
if (device->seat_caps & EVDEV_SEAT_TABLET)
weston_seat_release_tablet(device->tablet);
if (device->output)
wl_list_remove(&device->output_destroy_listener.link);
wl_list_remove(&device->link);
libinput_device_unref(device->device);
free(device->output_name);
free(device);
}
void
evdev_notify_keyboard_focus(struct weston_seat *seat,
struct wl_list *evdev_devices)
{
struct wl_array keys;
if (seat->keyboard_device_count == 0)
return;
wl_array_init(&keys);
notify_keyboard_focus_in(seat, &keys, STATE_UPDATE_AUTOMATIC);
wl_array_release(&keys);
}
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