+++ /dev/null
-/***
- This file is part of systemd.
-
- Copyright 2013 Kay Sievers <kay@vrfy.org>
-
- 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 <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/ioctl.h>
-#include <linux/input.h>
-
-#include "udev.h"
-
-static const struct key *keyboard_lookup_key(const char *str, unsigned len);
-#include "keyboard-keys-from-name.h"
-
-static int install_force_release(struct udev_device *dev, const unsigned *release, unsigned release_count) {
- struct udev_device *atkbd;
- const char *cur;
- char codes[4096];
- char *s;
- size_t l;
- unsigned i;
- int ret;
-
- atkbd = udev_device_get_parent_with_subsystem_devtype(dev, "serio", NULL);
- if (!atkbd)
- return -ENODEV;
-
- cur = udev_device_get_sysattr_value(atkbd, "force_release");
- if (!cur)
- return -ENODEV;
-
- s = codes;
- l = sizeof(codes);
-
- /* copy current content */
- l = strpcpy(&s, l, cur);
-
- /* append new codes */
- for (i = 0; i < release_count; i++)
- l = strpcpyf(&s, l, ",%u", release[i]);
-
- log_debug("keyboard: updating force-release list with '%s'", codes);
- ret = udev_device_set_sysattr_value(atkbd, "force_release", codes);
- if (ret < 0)
- log_error_errno(ret, "Error writing force-release attribute: %m");
- return ret;
-}
-
-static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], bool test) {
- struct udev_list_entry *entry;
- struct {
- unsigned scan;
- unsigned key;
- } map[1024];
- unsigned map_count = 0;
- unsigned release[1024];
- unsigned release_count = 0;
-
- udev_list_entry_foreach(entry, udev_device_get_properties_list_entry(dev)) {
- const char *key;
- unsigned scancode, keycode_num;
- char *endptr;
- const char *keycode;
- const struct key *k;
-
- key = udev_list_entry_get_name(entry);
- if (!startswith(key, "KEYBOARD_KEY_"))
- continue;
-
- /* KEYBOARD_KEY_<hex scan code>=<key identifier string> */
- scancode = strtoul(key + 13, &endptr, 16);
- if (endptr[0] != '\0') {
- log_error("Error, unable to parse scan code from '%s'", key);
- continue;
- }
-
- keycode = udev_list_entry_get_value(entry);
-
- /* a leading '!' needs a force-release entry */
- if (keycode[0] == '!') {
- keycode++;
-
- release[release_count] = scancode;
- if (release_count < ELEMENTSOF(release)-1)
- release_count++;
-
- if (keycode[0] == '\0')
- continue;
- }
-
- /* translate identifier to key code */
- k = keyboard_lookup_key(keycode, strlen(keycode));
- if (k) {
- keycode_num = k->id;
- } else {
- /* check if it's a numeric code already */
- keycode_num = strtoul(keycode, &endptr, 0);
- if (endptr[0] !='\0') {
- log_error("Error, unknown key identifier '%s'", keycode);
- continue;
- }
- }
-
- map[map_count].scan = scancode;
- map[map_count].key = keycode_num;
- if (map_count < ELEMENTSOF(map)-1)
- map_count++;
- }
-
- if (map_count > 0 || release_count > 0) {
- const char *node;
- int fd;
- unsigned i;
-
- node = udev_device_get_devnode(dev);
- if (!node) {
- log_error("Error, no device node for '%s'", udev_device_get_syspath(dev));
- return EXIT_FAILURE;
- }
-
- fd = open(udev_device_get_devnode(dev), O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY);
- if (fd < 0) {
- log_error_errno(errno, "Error, opening device '%s': %m", node);
- return EXIT_FAILURE;
- }
-
- /* install list of map codes */
- for (i = 0; i < map_count; i++) {
- log_debug("keyboard: mapping scan code %d (0x%x) to key code %d (0x%x)",
- map[i].scan, map[i].scan, map[i].key, map[i].key);
- if (ioctl(fd, EVIOCSKEYCODE, &map[i]) < 0)
- 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);
- }
-
- /* install list of force-release codes */
- if (release_count > 0)
- install_force_release(dev, release, release_count);
-
- close(fd);
- }
-
- return EXIT_SUCCESS;
-}
-
-const struct udev_builtin udev_builtin_keyboard = {
- .name = "keyboard",
- .cmd = builtin_keyboard,
- .help = "Keyboard scan code to key mapping",
-};
~ianmdlvl / elogind.git / blobdiff