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389 lines
9.9 KiB
389 lines
9.9 KiB
/*
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* Copyright © 2013 Intel Corporation
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* Copyright © 2013 Jonas Ådahl
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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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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <libinput.h>
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#include <libudev.h>
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#include "compositor.h"
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#include "launcher-util.h"
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#include "libinput-seat.h"
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#include "libinput-device.h"
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static const char default_seat[] = "seat0";
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static const char default_seat_name[] = "default";
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static void
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process_events(struct udev_input *input);
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static struct udev_seat *
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udev_seat_create(struct udev_input *input, const char *seat_name);
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static void
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udev_seat_destroy(struct udev_seat *seat);
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static void
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device_added(struct udev_input *input, struct libinput_device *libinput_device)
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{
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struct weston_compositor *c;
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struct evdev_device *device;
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struct weston_output *output;
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const char *seat_name;
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const char *output_name;
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struct libinput_seat *libinput_seat;
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struct weston_seat *seat;
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struct udev_seat *udev_seat;
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c = input->compositor;
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libinput_seat = libinput_device_get_seat(libinput_device);
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seat_name = libinput_seat_get_logical_name(libinput_seat);
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udev_seat = udev_seat_get_named(input, seat_name);
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if (!udev_seat)
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return;
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seat = &udev_seat->base;
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device = evdev_device_create(libinput_device, seat);
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if (device == NULL)
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return;
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udev_seat = (struct udev_seat *) seat;
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wl_list_insert(udev_seat->devices_list.prev, &device->link);
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if (seat->output && seat->pointer)
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weston_pointer_clamp(seat->pointer,
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&seat->pointer->x,
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&seat->pointer->y);
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output_name = libinput_device_get_output_name(libinput_device);
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if (output_name) {
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device->output_name = strdup(output_name);
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wl_list_for_each(output, &c->output_list, link)
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if (strcmp(output->name, device->output_name) == 0)
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evdev_device_set_output(device, output);
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} else if (device->output == NULL && !wl_list_empty(&c->output_list)) {
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output = container_of(c->output_list.next,
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struct weston_output, link);
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evdev_device_set_output(device, output);
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}
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if (!input->suspended)
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weston_seat_repick(seat);
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}
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static void
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udev_seat_remove_devices(struct udev_seat *seat)
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{
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struct evdev_device *device, *next;
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wl_list_for_each_safe(device, next, &seat->devices_list, link) {
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evdev_device_destroy(device);
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}
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}
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void
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udev_input_disable(struct udev_input *input)
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{
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if (input->suspended)
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return;
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libinput_suspend(input->libinput);
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process_events(input);
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input->suspended = 1;
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}
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static int
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udev_input_process_event(struct libinput_event *event)
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{
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struct libinput *libinput = libinput_event_get_context(event);
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struct libinput_device *libinput_device =
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libinput_event_get_device(event);
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struct udev_input *input = libinput_get_user_data(libinput);
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struct evdev_device *device;
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int handled = 1;
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switch (libinput_event_get_type(event)) {
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case LIBINPUT_EVENT_DEVICE_ADDED:
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device_added(input, libinput_device);
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break;
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case LIBINPUT_EVENT_DEVICE_REMOVED:
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device = libinput_device_get_user_data(libinput_device);
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evdev_device_destroy(device);
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break;
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default:
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handled = 0;
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}
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return handled;
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}
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static void
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process_event(struct libinput_event *event)
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{
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if (udev_input_process_event(event))
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return;
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if (evdev_device_process_event(event))
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return;
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}
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static void
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process_events(struct udev_input *input)
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{
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struct libinput_event *event;
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while ((event = libinput_get_event(input->libinput))) {
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process_event(event);
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libinput_event_destroy(event);
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}
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}
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static int
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udev_input_dispatch(struct udev_input *input)
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{
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if (libinput_dispatch(input->libinput) != 0)
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weston_log("libinput: Failed to dispatch libinput\n");
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process_events(input);
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return 0;
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}
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static int
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libinput_source_dispatch(int fd, uint32_t mask, void *data)
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{
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struct udev_input *input = data;
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return udev_input_dispatch(input) != 0;
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}
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static int
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open_restricted(const char *path, int flags, void *user_data)
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{
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struct udev_input *input = user_data;
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struct weston_launcher *launcher = input->compositor->launcher;
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return weston_launcher_open(launcher, path, flags);
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}
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static void
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close_restricted(int fd, void *user_data)
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{
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struct udev_input *input = user_data;
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struct weston_launcher *launcher = input->compositor->launcher;
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weston_launcher_close(launcher, fd);
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}
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const struct libinput_interface libinput_interface = {
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open_restricted,
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close_restricted,
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};
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int
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udev_input_enable(struct udev_input *input)
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{
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struct wl_event_loop *loop;
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struct weston_compositor *c = input->compositor;
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int fd;
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struct udev_seat *seat;
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int devices_found = 0;
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loop = wl_display_get_event_loop(c->wl_display);
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fd = libinput_get_fd(input->libinput);
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input->libinput_source =
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wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE,
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libinput_source_dispatch, input);
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if (!input->libinput_source) {
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return -1;
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}
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if (input->suspended) {
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if (libinput_resume(input->libinput) != 0) {
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wl_event_source_remove(input->libinput_source);
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input->libinput_source = NULL;
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return -1;
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}
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input->suspended = 0;
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process_events(input);
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}
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wl_list_for_each(seat, &input->compositor->seat_list, base.link) {
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evdev_notify_keyboard_focus(&seat->base, &seat->devices_list);
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if (!wl_list_empty(&seat->devices_list))
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devices_found = 1;
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}
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if (devices_found == 0) {
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weston_log(
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"warning: no input devices on entering Weston. "
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"Possible causes:\n"
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"\t- no permissions to read /dev/input/event*\n"
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"\t- seats misconfigured "
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"(Weston backend option 'seat', "
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"udev device property ID_SEAT)\n");
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return -1;
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}
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return 0;
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}
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static void
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libinput_log_func(struct libinput *libinput,
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enum libinput_log_priority priority,
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const char *format, va_list args)
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{
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weston_vlog(format, args);
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}
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int
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udev_input_init(struct udev_input *input, struct weston_compositor *c,
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struct udev *udev, const char *seat_id)
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{
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enum libinput_log_priority priority = LIBINPUT_LOG_PRIORITY_INFO;
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const char *log_priority = NULL;
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memset(input, 0, sizeof *input);
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input->compositor = c;
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log_priority = getenv("WESTON_LIBINPUT_LOG_PRIORITY");
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input->libinput = libinput_udev_create_context(&libinput_interface,
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input, udev);
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if (!input->libinput) {
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return -1;
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}
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libinput_log_set_handler(input->libinput, &libinput_log_func);
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if (log_priority) {
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if (strcmp(log_priority, "debug") == 0) {
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priority = LIBINPUT_LOG_PRIORITY_DEBUG;
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} else if (strcmp(log_priority, "info") == 0) {
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priority = LIBINPUT_LOG_PRIORITY_INFO;
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} else if (strcmp(log_priority, "error") == 0) {
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priority = LIBINPUT_LOG_PRIORITY_ERROR;
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}
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}
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libinput_log_set_priority(input->libinput, priority);
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if (libinput_udev_assign_seat(input->libinput, seat_id) != 0) {
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libinput_unref(input->libinput);
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return -1;
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}
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process_events(input);
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return udev_input_enable(input);
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}
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void
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udev_input_destroy(struct udev_input *input)
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{
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struct udev_seat *seat, *next;
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wl_event_source_remove(input->libinput_source);
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wl_list_for_each_safe(seat, next, &input->compositor->seat_list, base.link)
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udev_seat_destroy(seat);
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libinput_unref(input->libinput);
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}
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static void
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udev_seat_led_update(struct weston_seat *seat_base, enum weston_led leds)
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{
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struct udev_seat *seat = (struct udev_seat *) seat_base;
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struct evdev_device *device;
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wl_list_for_each(device, &seat->devices_list, link)
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evdev_led_update(device, leds);
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}
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static void
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notify_output_create(struct wl_listener *listener, void *data)
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{
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struct udev_seat *seat = container_of(listener, struct udev_seat,
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output_create_listener);
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struct evdev_device *device;
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struct weston_output *output = data;
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wl_list_for_each(device, &seat->devices_list, link) {
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if (device->output_name &&
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strcmp(output->name, device->output_name) == 0) {
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evdev_device_set_output(device, output);
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}
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if (device->output_name == NULL && device->output == NULL)
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evdev_device_set_output(device, output);
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}
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}
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static struct udev_seat *
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udev_seat_create(struct udev_input *input, const char *seat_name)
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{
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struct weston_compositor *c = input->compositor;
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struct udev_seat *seat;
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seat = zalloc(sizeof *seat);
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if (!seat)
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return NULL;
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weston_seat_init(&seat->base, c, seat_name);
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seat->base.led_update = udev_seat_led_update;
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seat->output_create_listener.notify = notify_output_create;
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wl_signal_add(&c->output_created_signal,
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&seat->output_create_listener);
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wl_list_init(&seat->devices_list);
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return seat;
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}
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static void
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udev_seat_destroy(struct udev_seat *seat)
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{
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udev_seat_remove_devices(seat);
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if (seat->base.keyboard)
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notify_keyboard_focus_out(&seat->base);
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weston_seat_release(&seat->base);
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wl_list_remove(&seat->output_create_listener.link);
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free(seat);
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}
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struct udev_seat *
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udev_seat_get_named(struct udev_input *input, const char *seat_name)
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{
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struct udev_seat *seat;
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wl_list_for_each(seat, &input->compositor->seat_list, base.link) {
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if (strcmp(seat->base.seat_name, seat_name) == 0)
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return seat;
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}
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return udev_seat_create(input, seat_name);
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}
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