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-rw-r--r--Makefile.am27
-rw-r--r--rules/60-keyboard.rules22
-rw-r--r--shell-completion/bash/udevadm2
-rw-r--r--src/udev/.gitignore4
-rw-r--r--src/udev/udev-builtin-keyboard.c163
-rw-r--r--src/udev/udev-builtin.c1
-rw-r--r--src/udev/udev.h2
7 files changed, 220 insertions, 1 deletions
diff --git a/Makefile.am b/Makefile.am
index aa7e830222..f1dfeedf58 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -174,6 +174,7 @@ AM_CPPFLAGS = \
-I $(top_srcdir)/src/core \
-I $(top_srcdir)/src/libudev \
-I $(top_srcdir)/src/udev \
+ -I $(top_builddir)/src/udev \
-I $(top_srcdir)/src/libsystemd-bus \
$(OUR_CPPFLAGS)
@@ -2094,6 +2095,7 @@ dist_udevrules_DATA += \
rules/99-systemd.rules \
rules/42-usb-hid-pm.rules \
rules/50-udev-default.rules \
+ rules/60-keyboard.rules \
rules/60-persistent-storage-tape.rules \
rules/60-persistent-serial.rules \
rules/60-persistent-input.rules \
@@ -2157,6 +2159,19 @@ rootlibexec_PROGRAMS += \
noinst_LTLIBRARIES += \
libudev-core.la
+src/udev/keyboard-keys.txt: Makefile
+ $(AM_V_at)$(MKDIR_P) $(dir $@)
+ $(AM_V_GEN)$(CPP) $(CFLAGS) $(AM_CPPFLAGS) $(CPPFLAGS) -dM -include linux/input.h - < /dev/null | $(AWK) '/^#define[ \t]+KEY_[^ ]+[ \t]+[0-9]/ { if ($$2 != "KEY_MAX") { print $$2 } }' | sed 's/^KEY_COFFEE$$/KEY_SCREENLOCK/' > $@
+
+src/udev/keyboard-keys-from-name.gperf: src/udev/keyboard-keys.txt Makefile
+ $(AM_V_GEN)$(AWK) 'BEGIN{ print "struct key { const char* name; unsigned short id; };"; print "%null-strings"; print "%%";} { print tolower(substr($$1 ,5)) ", " $$1 }' < $< > $@
+
+src/udev/keyboard-keys-from-name.h: src/udev/keyboard-keys-from-name.gperf Makefile
+ $(AM_V_GPERF)$(GPERF) -L ANSI-C -t -N keyboard_lookup_key -H hash_key_name -p -C < $< > $@
+
+src/udev/keyboard-keys-to-name.h: src/udev/keyboard-keys.txt Makefile
+ $(AM_V_GEN)$(AWK) 'BEGIN{ print "const char* const key_names[KEY_CNT] = { "} { print "[" $$1 "] = \"" $$1 "\"," } END{print "};"}' < $< > $@
+
libudev_core_la_SOURCES = \
src/udev/udev.h \
src/udev/udev-event.c \
@@ -2168,10 +2183,22 @@ libudev_core_la_SOURCES = \
src/udev/udev-builtin-btrfs.c \
src/udev/udev-builtin-hwdb.c \
src/udev/udev-builtin-input_id.c \
+ src/udev/udev-builtin-keyboard.c \
src/udev/udev-builtin-net_id.c \
src/udev/udev-builtin-path_id.c \
src/udev/udev-builtin-usb_id.c
+nodist_libudev_core_la_SOURCES = \
+ src/udev/keyboard-keys-from-name.h \
+ src/udev/keyboard-keys-to-name.h
+
+BUILT_SOURCES += \
+ $(nodist_libudev_core_la_SOURCES)
+
+CLEANFILES += \
+ src/udev/keyboard-keys-from-name.gperf \
+ src/udev/keyboard-keys.txt
+
libudev_core_la_CFLAGS = \
$(AM_CFLAGS) \
$(BLKID_CFLAGS) \
diff --git a/rules/60-keyboard.rules b/rules/60-keyboard.rules
new file mode 100644
index 0000000000..b925853c3e
--- /dev/null
+++ b/rules/60-keyboard.rules
@@ -0,0 +1,22 @@
+# do not edit this file, it will be overwritten on update
+
+ACTION!="add", GOTO="keyboard_end"
+KERNEL!="event*", GOTO="keyboard_end"
+ENV{ID_INPUT_KEY}=="", GOTO="keyboard_end"
+
+# ignore all bluetooth devices
+SUBSYSTEMS=="bluetooth", GOTO="keyboard_end"
+
+# import key mapping for USB device
+SUBSYSTEMS=="usb", IMPORT{builtin}="hwdb --subsystem=usb --lookup-prefix=keyboard:", \
+ RUN{program}+="keyboard", GOTO="keyboard_end"
+
+# import key mapping for AT keyboard from DMI data
+DRIVERS=="atkbd", IMPORT{builtin}="hwdb 'keyboard:$attr{[dmi/id]modalias}'", \
+ RUN{program}+="keyboard", GOTO="keyboard_end"
+
+# import key mapping for platform input device
+KERNELS=="input*", IMPORT{builtin}="hwdb 'keyboard:name:$attr{name}:$attr{[dmi/id]modalias}'", \
+ RUN{program}+="keyboard", GOTO="keyboard_end"
+
+LABEL="keyboard_end"
diff --git a/shell-completion/bash/udevadm b/shell-completion/bash/udevadm
index 123fb51633..e9ad179203 100644
--- a/shell-completion/bash/udevadm
+++ b/shell-completion/bash/udevadm
@@ -93,7 +93,7 @@ _udevadm() {
fi
elif __contains_word "$verb" ${VERBS[TESTBUILTIN]}; then
- comps='blkid btrfs hwdb input_id kmod net_id path_id usb_id uaccess'
+ comps='blkid btrfs hwdb input_id keyboard kmod net_id path_id usb_id uaccess'
fi
COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
diff --git a/src/udev/.gitignore b/src/udev/.gitignore
index 3e375a7726..a229430e36 100644
--- a/src/udev/.gitignore
+++ b/src/udev/.gitignore
@@ -1 +1,5 @@
/udev.pc
+/keyboard-keys-from-name.gperf
+/keyboard-keys-from-name.h
+/keyboard-keys-to-name.h
+/keyboard-keys.txt
diff --git a/src/udev/udev-builtin-keyboard.c b/src/udev/udev-builtin-keyboard.c
new file mode 100644
index 0000000000..ddd853594e
--- /dev/null
+++ b/src/udev/udev-builtin-keyboard.c
@@ -0,0 +1,163 @@
+/***
+ 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 <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <linux/limits.h>
+#include <linux/input.h>
+
+#include "udev.h"
+
+static const struct key *keyboard_lookup_key(const char *str, unsigned int len);
+#include "keyboard-keys-from-name.h"
+#include "keyboard-keys-to-name.h"
+
+static int install_force_release(struct udev_device *dev, const unsigned int *release, unsigned int release_count) {
+ struct udev_device *atkbd;
+ const char *cur;
+ char codes[4096];
+ char *s;
+ size_t l;
+ unsigned int 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, ",%d", release[i]);
+
+ log_debug("keyboard: updating force-release list with '%s'\n", codes);
+ ret = udev_device_set_sysattr_value(atkbd, "force_release", codes);
+ if (ret < 0)
+ log_error("Error writing force-release attribute: %s", strerror(-ret));
+ return ret;
+}
+
+static int builtin_keyboard(struct udev_device *dev, int argc, char *argv[], bool test) {
+ struct udev_list_entry *entry;
+ struct {
+ unsigned int scan;
+ unsigned int key;
+ } map[1024];
+ unsigned int map_count = 0;
+ unsigned int release[1024];
+ unsigned int release_count = 0;
+
+ udev_list_entry_foreach(entry, udev_device_get_properties_list_entry(dev)) {
+ const char *key;
+ unsigned int scancode;
+ 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 = strtol(key + 13, &endptr, 16);
+ if (endptr[0] != '\0') {
+ log_error("Error, unable to parse scan code from '%s'\n", 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) {
+ log_error("Error, unknown key identifier '%s'\n", keycode);
+ continue;
+ }
+
+ map[map_count].scan = scancode;
+ map[map_count].key = k->id;
+ if (map_count < ELEMENTSOF(map)-1)
+ map_count++;
+ }
+
+ if (map_count > 0 || release_count > 0) {
+ const char *node;
+ int fd;
+ unsigned int i;
+
+ node = udev_device_get_devnode(dev);
+ if (!node) {
+ log_error("Error, no device node for '%s'\n", 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("Error, opening device '%s': %m\n", 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)\n",
+ map[i].scan, map[i].scan, map[i].key, map[i].key);
+ if (ioctl(fd, EVIOCSKEYCODE, &map[i]) < 0)
+ log_error("Error calling EVIOCSKEYCODE: %m\n");
+ }
+
+ /* 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",
+};
diff --git a/src/udev/udev-builtin.c b/src/udev/udev-builtin.c
index c7d431988d..6b3a518c2e 100644
--- a/src/udev/udev-builtin.c
+++ b/src/udev/udev-builtin.c
@@ -39,6 +39,7 @@ static const struct udev_builtin *builtins[] = {
#endif
[UDEV_BUILTIN_HWDB] = &udev_builtin_hwdb,
[UDEV_BUILTIN_INPUT_ID] = &udev_builtin_input_id,
+ [UDEV_BUILTIN_KEYBOARD] = &udev_builtin_keyboard,
#ifdef HAVE_KMOD
[UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
#endif
diff --git a/src/udev/udev.h b/src/udev/udev.h
index 4f10c452e6..c9408f2d46 100644
--- a/src/udev/udev.h
+++ b/src/udev/udev.h
@@ -145,6 +145,7 @@ enum udev_builtin_cmd {
#endif
UDEV_BUILTIN_HWDB,
UDEV_BUILTIN_INPUT_ID,
+ UDEV_BUILTIN_KEYBOARD,
#ifdef HAVE_KMOD
UDEV_BUILTIN_KMOD,
#endif
@@ -174,6 +175,7 @@ extern const struct udev_builtin udev_builtin_firmware;
#endif
extern const struct udev_builtin udev_builtin_hwdb;
extern const struct udev_builtin udev_builtin_input_id;
+extern const struct udev_builtin udev_builtin_keyboard;
#ifdef HAVE_KMOD
extern const struct udev_builtin udev_builtin_kmod;
#endif
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 10:41:33 +0000