diff options
Diffstat (limited to 'src/grp-login/liblogind-core/logind-button.c')
-rw-r--r-- | src/grp-login/liblogind-core/logind-button.c | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/src/grp-login/liblogind-core/logind-button.c b/src/grp-login/liblogind-core/logind-button.c deleted file mode 100644 index 81c82117fc..0000000000 --- a/src/grp-login/liblogind-core/logind-button.c +++ /dev/null @@ -1,290 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <string.h> -#include <sys/ioctl.h> -#include <unistd.h> - -#include <linux/input.h> - -#include <systemd/sd-messages.h> - -#include "basic/alloc-util.h" -#include "basic/fd-util.h" -#include "basic/string-util.h" -#include "basic/util.h" - -#include "logind-button.h" - -Button* button_new(Manager *m, const char *name) { - Button *b; - - assert(m); - assert(name); - - b = new0(Button, 1); - if (!b) - return NULL; - - b->name = strdup(name); - if (!b->name) { - free(b); - return NULL; - } - - if (hashmap_put(m->buttons, b->name, b) < 0) { - free(b->name); - free(b); - return NULL; - } - - b->manager = m; - b->fd = -1; - - return b; -} - -void button_free(Button *b) { - assert(b); - - hashmap_remove(b->manager->buttons, b->name); - - sd_event_source_unref(b->io_event_source); - sd_event_source_unref(b->check_event_source); - - if (b->fd >= 0) - /* If the device has been unplugged close() returns - * ENODEV, let's ignore this, hence we don't use - * safe_close() */ - (void) close(b->fd); - - free(b->name); - free(b->seat); - free(b); -} - -int button_set_seat(Button *b, const char *sn) { - char *s; - - assert(b); - assert(sn); - - s = strdup(sn); - if (!s) - return -ENOMEM; - - free(b->seat); - b->seat = s; - - return 0; -} - -static void button_lid_switch_handle_action(Manager *manager, bool is_edge) { - HandleAction handle_action; - - assert(manager); - - /* If we are docked, handle the lid switch differently */ - if (manager_is_docked_or_external_displays(manager)) - handle_action = manager->handle_lid_switch_docked; - else - handle_action = manager->handle_lid_switch; - - manager_handle_action(manager, INHIBIT_HANDLE_LID_SWITCH, handle_action, manager->lid_switch_ignore_inhibited, is_edge); -} - -static int button_recheck(sd_event_source *e, void *userdata) { - Button *b = userdata; - - assert(b); - assert(b->lid_closed); - - button_lid_switch_handle_action(b->manager, false); - return 1; -} - -static int button_install_check_event_source(Button *b) { - int r; - assert(b); - - /* Install a post handler, so that we keep rechecking as long as the lid is closed. */ - - if (b->check_event_source) - return 0; - - r = sd_event_add_post(b->manager->event, &b->check_event_source, button_recheck, b); - if (r < 0) - return r; - - return sd_event_source_set_priority(b->check_event_source, SD_EVENT_PRIORITY_IDLE+1); -} - -static int button_dispatch(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - Button *b = userdata; - struct input_event ev; - ssize_t l; - - assert(s); - assert(fd == b->fd); - assert(b); - - l = read(b->fd, &ev, sizeof(ev)); - if (l < 0) - return errno != EAGAIN ? -errno : 0; - if ((size_t) l < sizeof(ev)) - return -EIO; - - if (ev.type == EV_KEY && ev.value > 0) { - - switch (ev.code) { - - case KEY_POWER: - case KEY_POWER2: - log_struct(LOG_INFO, - LOG_MESSAGE("Power key pressed."), - LOG_MESSAGE_ID(SD_MESSAGE_POWER_KEY), - NULL); - - manager_handle_action(b->manager, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true); - break; - - /* The kernel is a bit confused here: - - KEY_SLEEP = suspend-to-ram, which everybody else calls "suspend" - KEY_SUSPEND = suspend-to-disk, which everybody else calls "hibernate" - */ - - case KEY_SLEEP: - log_struct(LOG_INFO, - LOG_MESSAGE("Suspend key pressed."), - LOG_MESSAGE_ID(SD_MESSAGE_SUSPEND_KEY), - NULL); - - manager_handle_action(b->manager, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true); - break; - - case KEY_SUSPEND: - log_struct(LOG_INFO, - LOG_MESSAGE("Hibernate key pressed."), - LOG_MESSAGE_ID(SD_MESSAGE_HIBERNATE_KEY), - NULL); - - manager_handle_action(b->manager, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true); - break; - } - - } else if (ev.type == EV_SW && ev.value > 0) { - - if (ev.code == SW_LID) { - log_struct(LOG_INFO, - LOG_MESSAGE("Lid closed."), - LOG_MESSAGE_ID(SD_MESSAGE_LID_CLOSED), - NULL); - - b->lid_closed = true; - button_lid_switch_handle_action(b->manager, true); - button_install_check_event_source(b); - - } else if (ev.code == SW_DOCK) { - log_struct(LOG_INFO, - LOG_MESSAGE("System docked."), - LOG_MESSAGE_ID(SD_MESSAGE_SYSTEM_DOCKED), - NULL); - - b->docked = true; - } - - } else if (ev.type == EV_SW && ev.value == 0) { - - if (ev.code == SW_LID) { - log_struct(LOG_INFO, - LOG_MESSAGE("Lid opened."), - LOG_MESSAGE_ID(SD_MESSAGE_LID_OPENED), - NULL); - - b->lid_closed = false; - b->check_event_source = sd_event_source_unref(b->check_event_source); - - } else if (ev.code == SW_DOCK) { - log_struct(LOG_INFO, - LOG_MESSAGE("System undocked."), - LOG_MESSAGE_ID(SD_MESSAGE_SYSTEM_UNDOCKED), - NULL); - - b->docked = false; - } - } - - return 0; -} - -int button_open(Button *b) { - char *p, name[256]; - int r; - - assert(b); - - b->fd = safe_close(b->fd); - - p = strjoina("/dev/input/", b->name); - - b->fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK); - if (b->fd < 0) - return log_warning_errno(errno, "Failed to open %s: %m", b->name); - - if (ioctl(b->fd, EVIOCGNAME(sizeof(name)), name) < 0) { - r = log_error_errno(errno, "Failed to get input name: %m"); - goto fail; - } - - r = sd_event_add_io(b->manager->event, &b->io_event_source, b->fd, EPOLLIN, button_dispatch, b); - if (r < 0) { - log_error_errno(r, "Failed to add button event: %m"); - goto fail; - } - - log_info("Watching system buttons on /dev/input/%s (%s)", b->name, name); - - return 0; - -fail: - b->fd = safe_close(b->fd); - return r; -} - -int button_check_switches(Button *b) { - uint8_t switches[SW_MAX/8+1] = {}; - assert(b); - - if (b->fd < 0) - return -EINVAL; - - if (ioctl(b->fd, EVIOCGSW(sizeof(switches)), switches) < 0) - return -errno; - - b->lid_closed = (switches[SW_LID/8] >> (SW_LID % 8)) & 1; - b->docked = (switches[SW_DOCK/8] >> (SW_DOCK % 8)) & 1; - - if (b->lid_closed) - button_install_check_event_source(b); - - return 0; -} |