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keymap: handle atkbd force_release quirk

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Some laptop keyboards don't generate release events
for some hotkeys.  Since linux-2.6.32 the list of scancodes
for which to enable the force_release quirk can be set
via sysfs.
Apply this to Samsung N130.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Martin Pitt <martin.pitt@ubuntu.com>
This commit is contained in:
Johannes Stezenbach 2009-12-13 23:54:05 +01:00 committed by Martin Pitt
parent 92b8cea053
commit 8350d0b9ec
4 changed files with 62 additions and 0 deletions
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6
Makefile.am
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@ -480,8 +480,10 @@ BUILT_SOURCES += $(nodist_extras_keymap_keymap_SOURCES)
EXTRA_DIST += extras/keymap/check-keymaps.sh
dist_udevrules_DATA += extras/keymap/95-keymap.rules
dist_udevrules_DATA += extras/keymap/95-keyboard-force-release.rules
libexec_PROGRAMS += extras/keymap/keymap
dist_libexec_SCRIPTS += extras/keymap/findkeyboards
dist_libexec_SCRIPTS += extras/keymap/keyboard-force-release.sh
dist_doc_DATA = extras/keymap/README.keymap.txt
CLEANFILES += \
@ -535,6 +537,10 @@ dist_udevkeymap_DATA = \
extras/keymap/keymaps/toshiba-satellite_a110 \
extras/keymap/keymaps/zepto-znote
udevkeymapforcereldir = $(libexecdir)/keymaps/force-release
dist_udevkeymapforcerel_DATA = \
extras/keymap/keymaps/force-release/samsung-other
extras/keymap/keys.txt: /usr/include/linux/input.h
$(AM_V_GEN)$(AWK) '/^#define.*KEY_[^ ]+[ \t]+[0-9]/ { if ($$2 != "KEY_MAX") { print $$2 } }' < $< | sed 's/^KEY_COFFEE$$/KEY_SCREENLOCK/' > $@

24
extras/keymap/95-keyboard-force-release.rules Normal file
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@ -0,0 +1,24 @@
# Set model specific atkbd force_release quirk
#
# Several laptops have hotkeys which don't generate release events,
# which can cause problems with software key repeat.
# The atkbd driver has a quirk handler for generating synthetic
# release events, which can be configured via sysfs since 2.6.32.
# Simply add a file with a list of scancodes for your laptop model
# in /lib/udev/keymaps, and add a rule here.
# If the hotkeys also need a keymap assignment you can copy the
# scancodes from the keymap file, otherwise you can run
# /lib/udev/keymap -i /dev/input/eventX
# on a Linux vt to find out.
ACTION!="add|change", GOTO="force_release_end"
SUBSYSTEM!="serio", GOTO="force_release_end"
KERNEL!="serio*", GOTO="force_release_end"
DRIVER!="atkbd", GOTO="force_release_end"
ENV{DMI_VENDOR}="$attr{[dmi/id]sys_vendor}"
ENV{DMI_VENDOR}=="[sS][aA][mM][sS][uU][nN][gG]*", ATTR{[dmi/id]product_name}=="*N130*", RUN+="keyboard-force-release.sh $devpath samsung-other"
LABEL="force_release_end"

22
extras/keymap/keyboard-force-release.sh Normal file
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@ -0,0 +1,22 @@
#!/bin/sh -e
# read list of scancodes, convert hex to decimal and
# append to the atkbd force_release sysfs attribute
# $1 sysfs devpath for serioX
# $2 file with scancode list (hex or dec)
case "$2" in
/*) scf="$2" ;;
*) scf="/lib/udev/keymaps/force-release/$2" ;;
esac
read attr <"/sys/$1/force_release"
while read scancode dummy; do
case "$scancode" in
\#*) ;;
*)
scancode=$(($scancode))
attr="$attr${attr:+,}$scancode"
;;
esac
done <"$scf"
echo "$attr" >"/sys/$1/force_release"

10
extras/keymap/keymaps/force-release/samsung-other Normal file
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@ -0,0 +1,10 @@
# list of scancodes (hex or decimal), optional comment
0x82 # Fn+F4 CRT/LCD
0x83 # Fn+F2 battery
0x84 # Fn+F5 backlight on/off
0x86 # Fn+F9 WLAN
0x88 # Fn-Up brightness up
0x89 # Fn-Down brightness down
0xB3 # Fn+F8 switch power mode (battery/dynamic/performance)
0xF7 # Fn+F10 Touchpad on
0xF9 # Fn+F10 Touchpad off