mirror of
https://gitlab.freedesktop.org/wayland/weston.git
synced 2026-05-20 17:18:13 +02:00
1df17af2c0
Touchpad related code has been rewritten and moved to its own file accessed by evdev via the dispatch interface. The various functionality implemented are anti-jitter (don't jumping around), smoother motions, touch detection, pointer acceleration and some more. Pointer acceleration is implemented as one generic part, and one touch specific part (a profile). Some ideas and magic numbers comes from xserver and xf86-input-synaptics. Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
105 lines
3 KiB
C
105 lines
3 KiB
C
/*
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* Copyright © 2012 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the copyright holders not be used in
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* advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission. The copyright holders make
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef EVDEV_PRIVATE_H
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#define EVDEV_PRIVATE_H
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#include <linux/input.h>
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#include <wayland-util.h>
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struct evdev_seat {
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struct weston_seat base;
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struct wl_list devices_list;
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struct udev_monitor *udev_monitor;
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struct wl_event_source *udev_monitor_source;
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char *seat_id;
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};
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#define MAX_SLOTS 16
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struct evdev_input_device {
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struct evdev_seat *master;
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struct wl_list link;
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struct wl_event_source *source;
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struct weston_output *output;
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struct evdev_dispatch *dispatch;
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char *devnode;
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int fd;
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struct {
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int min_x, max_x, min_y, max_y;
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int32_t x, y;
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} abs;
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struct {
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int slot;
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int32_t x[MAX_SLOTS];
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int32_t y[MAX_SLOTS];
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} mt;
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struct mtdev *mtdev;
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struct {
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wl_fixed_t dx, dy;
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} rel;
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int type; /* event type flags */
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int is_mt;
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};
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/* event type flags */
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#define EVDEV_ABSOLUTE_MOTION (1 << 0)
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#define EVDEV_ABSOLUTE_MT_DOWN (1 << 1)
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#define EVDEV_ABSOLUTE_MT_MOTION (1 << 2)
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#define EVDEV_ABSOLUTE_MT_UP (1 << 3)
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#define EVDEV_RELATIVE_MOTION (1 << 4)
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/* copied from udev/extras/input_id/input_id.c */
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/* we must use this kernel-compatible implementation */
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#define BITS_PER_LONG (sizeof(unsigned long) * 8)
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#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
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#define OFF(x) ((x)%BITS_PER_LONG)
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#define BIT(x) (1UL<<OFF(x))
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#define LONG(x) ((x)/BITS_PER_LONG)
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#define TEST_BIT(array, bit) ((array[LONG(bit)] >> OFF(bit)) & 1)
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/* end copied */
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struct evdev_dispatch;
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struct evdev_dispatch_interface {
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/* Process an evdev input event. */
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void (*process)(struct evdev_dispatch *dispatch,
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struct evdev_input_device *device,
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struct input_event *event,
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uint32_t time);
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/* Destroy an event dispatch handler and free all its resources. */
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void (*destroy)(struct evdev_dispatch *dispatch);
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};
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struct evdev_dispatch {
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struct evdev_dispatch_interface *interface;
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};
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struct evdev_dispatch *
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evdev_touchpad_create(struct evdev_input_device *device);
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#endif /* EVDEV_PRIVATE_H */
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