2eec67acbb
This patch removes includes that are not used. The removals were found with include-what-you-use which checks if any of the symbols from a header is in use.
166 lines
5.8 KiB
C
166 lines
5.8 KiB
C
/***
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This file is part of systemd.
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Copyright 2013 Kay Sievers <kay@vrfy.org>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <linux/input.h>
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#include "udev.h"
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static const struct key *keyboard_lookup_key(const char *str, unsigned len);
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#include "keyboard-keys-from-name.h"
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static int install_force_release(struct udev_device *dev, const unsigned *release, unsigned release_count) {
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struct udev_device *atkbd;
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const char *cur;
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char codes[4096];
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char *s;
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size_t l;
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unsigned i;
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int ret;
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atkbd = udev_device_get_parent_with_subsystem_devtype(dev, "serio", NULL);
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if (!atkbd)
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return -ENODEV;
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cur = udev_device_get_sysattr_value(atkbd, "force_release");
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if (!cur)
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return -ENODEV;
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s = codes;
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l = sizeof(codes);
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/* copy current content */
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l = strpcpy(&s, l, cur);
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/* append new codes */
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for (i = 0; i < release_count; i++)
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l = strpcpyf(&s, l, ",%u", release[i]);
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log_debug("keyboard: updating force-release list with '%s'", codes);
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ret = udev_device_set_sysattr_value(atkbd, "force_release", codes);
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if (ret < 0)
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log_error_errno(ret, "Error writing force-release attribute: %m");
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return ret;
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}
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static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], bool test) {
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struct udev_list_entry *entry;
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struct {
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unsigned scan;
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unsigned key;
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} map[1024];
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unsigned map_count = 0;
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unsigned release[1024];
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unsigned release_count = 0;
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udev_list_entry_foreach(entry, udev_device_get_properties_list_entry(dev)) {
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const char *key;
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unsigned scancode, keycode_num;
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char *endptr;
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const char *keycode;
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const struct key *k;
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key = udev_list_entry_get_name(entry);
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if (!startswith(key, "KEYBOARD_KEY_"))
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continue;
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/* KEYBOARD_KEY_<hex scan code>=<key identifier string> */
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scancode = strtoul(key + 13, &endptr, 16);
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if (endptr[0] != '\0') {
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log_error("Error, unable to parse scan code from '%s'", key);
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continue;
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}
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keycode = udev_list_entry_get_value(entry);
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/* a leading '!' needs a force-release entry */
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if (keycode[0] == '!') {
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keycode++;
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release[release_count] = scancode;
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if (release_count < ELEMENTSOF(release)-1)
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release_count++;
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if (keycode[0] == '\0')
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continue;
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}
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/* translate identifier to key code */
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k = keyboard_lookup_key(keycode, strlen(keycode));
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if (k) {
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keycode_num = k->id;
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} else {
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/* check if it's a numeric code already */
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keycode_num = strtoul(keycode, &endptr, 0);
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if (endptr[0] !='\0') {
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log_error("Error, unknown key identifier '%s'", keycode);
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continue;
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}
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}
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map[map_count].scan = scancode;
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map[map_count].key = keycode_num;
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if (map_count < ELEMENTSOF(map)-1)
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map_count++;
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}
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if (map_count > 0 || release_count > 0) {
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const char *node;
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int fd;
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unsigned i;
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node = udev_device_get_devnode(dev);
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if (!node) {
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log_error("Error, no device node for '%s'", udev_device_get_syspath(dev));
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return EXIT_FAILURE;
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}
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fd = open(udev_device_get_devnode(dev), O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY);
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if (fd < 0) {
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log_error_errno(errno, "Error, opening device '%s': %m", node);
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return EXIT_FAILURE;
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}
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/* install list of map codes */
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for (i = 0; i < map_count; i++) {
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log_debug("keyboard: mapping scan code %d (0x%x) to key code %d (0x%x)",
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map[i].scan, map[i].scan, map[i].key, map[i].key);
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if (ioctl(fd, EVIOCSKEYCODE, &map[i]) < 0)
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log_error_errno(errno, "Error calling EVIOCSKEYCODE on device node '%s' (scan code 0x%x, key code %d): %m", node, map[i].scan, map[i].key);
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}
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/* install list of force-release codes */
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if (release_count > 0)
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install_force_release(dev, release, release_count);
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close(fd);
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}
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return EXIT_SUCCESS;
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}
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const struct udev_builtin udev_builtin_keyboard = {
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.name = "keyboard",
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.cmd = builtin_keyboard,
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.help = "Keyboard scan code to key mapping",
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};
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