Commit Graph

673 Commits

Author SHA1 Message Date
Rafael J. Wysocki
8314418629 Freezer: make kernel threads nonfreezable by default
Currently, the freezer treats all tasks as freezable, except for the kernel
threads that explicitly set the PF_NOFREEZE flag for themselves.  This
approach is problematic, since it requires every kernel thread to either
set PF_NOFREEZE explicitly, or call try_to_freeze(), even if it doesn't
care for the freezing of tasks at all.

It seems better to only require the kernel threads that want to or need to
be frozen to use some freezer-related code and to remove any
freezer-related code from the other (nonfreezable) kernel threads, which is
done in this patch.

The patch causes all kernel threads to be nonfreezable by default (ie.  to
have PF_NOFREEZE set by default) and introduces the set_freezable()
function that should be called by the freezable kernel threads in order to
unset PF_NOFREEZE.  It also makes all of the currently freezable kernel
threads call set_freezable(), so it shouldn't cause any (intentional)
change of behaviour to appear.  Additionally, it updates documentation to
describe the freezing of tasks more accurately.

[akpm@linux-foundation.org: build fixes]
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:02 -07:00
Tejun Heo
7b595756ec sysfs: kill unnecessary attribute->owner
sysfs is now completely out of driver/module lifetime game.  After
deletion, a sysfs node doesn't access anything outside sysfs proper,
so there's no reason to hold onto the attribute owners.  Note that
often the wrong modules were accounted for as owners leading to
accessing removed modules.

This patch kills now unnecessary attribute->owner.  Note that with
this change, userland holding a sysfs node does not prevent the
backing module from being unloaded.

For more info regarding lifetime rule cleanup, please read the
following message.

  http://article.gmane.org/gmane.linux.kernel/510293

(tweaked by Greg to not delete the field just yet, to make it easier to
merge things properly.)

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:09:06 -07:00
Andrew Morton
65f88f89c9 Input: tsdev - fix broken usec-to-millisecs conversion
Noted by Fengwei Yin <yfw.kernel@gmail.com>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:43:06 -04:00
Mike Rapoport
744c9c33ea Input: pxa27x_keyboard - fix compile error
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:38:39 -04:00
Andrew Morton
4f179f7160 Input: serio_raw - shut up errorneous warning
drivers/input/serio/serio_raw.c: In function 'serio_raw_read':
drivers/input/serio/serio_raw.c:163: warning: 'c' may be used uninitialized in this function

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:38:31 -04:00
Hans de Goede
72a42f242c Input: atkbd - change mapping for e032 from KEY_WWW to KEY_HOMEPAGE
WWW/Homepage key on Microsoft-compatible keyboards generates KEY_WWW
when connected via PS/2 port but KEY_HOMEPAGE when connected via USB.
This patch changes mapping in atkbd to match one in HID driver.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Acked-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:18 -04:00
Ondrej Zary
df561fcd44 Input: usbtouchscreen - add support for IRTOUCHSYSTEMS touchscreens
This patch adds support for IRTOUCHSYSTEMS (or UNITOP) infrared touchscreens.

The touchscreen sends data in 8-byte packets.
BYTE 0 - unknown meaning, seen only one value: 0x54
BYTE 1 - unknown meaning, 3 lowest bits indicate touch state
        values seen: 0x81, 0x82 or 0x83
        bit 0 = set if the screen is touched and was not touched before (touch
        bit 1 = set if the screen is touched and was touched (dragging)
        bit 2 = set if the touch was ended (release)
BYTES 2 and 3 - X position, high-order-byte first, range = 0 to 0x0FFF
BYTES 4 and 5 - Y position, high-order-byte first, range = 0 to 0x0FFF
BYTE 6 - unknown meaning, seen only one value: 0xFF
BYTE 7 - unknown meaning, seen only one value: 0x00

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:18 -04:00
Dmitry Torokhov
ae91d10aab Input: xpad - fix report for dpad and inverted Y and RY axes on xbox 360
Make the driver report Y/RY up as positive value and down as negative. Also
make DPAD mapping the same as classic xpad.

Reported-by: Brian Magnuson <bdmagnuson@gmail.com>
Tested-by: Jan Kratochvil <honza@jikos.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:18 -04:00
Adrian Bunk
6426b333a7 Input: xpad - make xpad_play_effect() static
xpad_play_effect() does not need to be global.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:18 -04:00
Jan Kratochvil
2e8335a629 Input: xpad - fix check for succesful usb_buffer_alloc
Signed-off-by: Jan Kratochvil <honza@jikos.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:18 -04:00
Andi Drebes
5ec1f7f3e4 Input: grip-mp - use ARRAY_SIZE
Signed-off-by: Andi Drebes <lists-receive@programmierforen.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:18 -04:00
Ping Cheng
7ecfbfd3d0 Input: wacom - add support for the new Bamboo tablets
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Hans-Christian Egtvedt
5f5655023f Input: add gpio-mouse driver
Adds support for simulating a mouse using GPIO lines. The driver
needs an appropriate platform device to be created by architecture
code.

The driver has been tested on AT32AP7000 microprocessor using the
ATSTK1000 development board.

Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Dmitry Torokhov
9657d75c5f Input: convert from class devices to standard devices
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Dmitry Torokhov
d63219a101 Input: wistron - add support for querying/changing keymap
Implement getkeycode and setkeycode methods for the device so
EVIOCGKEYCODE and EVIOCSKEYCODE ioctls will work.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Dmitry Torokhov
c2554c9142 Input: wistron - convert to use input-polldev
Switch to using input-polldev skeleton instead of implementing
polling loop by itself.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Eric Piel
389679d8fa Input: wistron - add LED support
Add support to wistron_btns for leds that come with the multimedia keys.
Mail and wifi leds are supported, on laptops which have them.

Depending on the laptop, wifi subsystem may control just the led, or both
the led and the wifi card. Wifi led interface is activated only for the
former type of laptops, as the latter type is already managed. Leds are
controled by the interface in /sys/class/leds.

Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Eric Piel
a4da16d383 Input: wriston - reduce polling frequency
Reduces the polling frequency from 10 Hz to 2 Hz, which should be less a burden
for laptops wrt energy saving. As it is multimedia keys, 500ms (maximum) of
latency should be still fine for the user. In order to keep fluent the feeling
when the user is pressing several keys in a raw (such as changing the volume),
the frequency is increased for a short duration after a key is pressed.

Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Rene van Paassen
5035522d1a Input: aiptek - update driver version
Update credits and version number to 2.3

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Rene van Paassen
1e7b3faed1 Input: aiptek - rework the function key code
Function keys (also called macro keys) code corrected. Using a
lastMacro variable to keep track of key currently pressed. This
ensures proper resetting when dragging the pen in the drawing
area or to another key. Also suppress sending pressure reports
when over the macro key area.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Rene van Paassen
0112db36ef Input: aiptek - tolerate newlines in sysfs files
Now echo "some value" > /sys/......./somefile is also acceptable.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:17 -04:00
Rene van Paassen
b3b6cf1d47 Input: aiptek - correct the tool switching code
Now the old tool is remembered, and reset when a new tool is
selected via the sysfs files.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Rene van Paassen
da9fda434c Input: aiptek - use only absolute misc reports
To get an on - off reporting for proximity, absolute misc reports are
used. The mixture of absolute and relative reports is awkward

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Rene van Paassen
6125a40035 Input: aiptek - put sensible warnings in probe
Added warnings to the points where the tablet probe may fail

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Rene van Paassen
1a54f49e89 Input: aiptek - use set_bit instead of bitwise or
Have to use set_bit since some bit values are over 32, and bitwise or
won't work on these. To be safe for the future too, use set_bit for all
input dev capabilities

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Mark Vytlacil
0038cae0ff Input: aiptek - fix relative mode parsing
Corrections to relative mode, was looking at wrong byte

Signed-off-by: Mark Vytlacil <mrv@wi.rr.com>
Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Rene van Paassen
ce0982edae Input: aiptek - fixed mouse button defines
Mouse button defines tested the wrong bits, now fixed

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Rene van Paassen
fe981f2340 Input: aiptek - correct the proximity and validity checks
Calculation of proximity bit and of data valid bits were reversed for
stylus reports.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Rene van Paassen
2fe574167b Input: aiptek - correct documentation on reports
Small fix that corrects the documentation on the report byte
format produced by the mouse

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Dmitry Torokhov
33936fa603 Input: aiptek - use array to list all buttons
When setting up input device use an array to list all the buttons
instead of setting every bit separately.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Dmitry Torokhov
37767b66ed Input: aiptek - kill aiptek_convert_from_2s_complement()
There is no reason to do that, just tell the compiler that
we are dealing with signed values in buffer, that's it.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:16 -04:00
Dmitry Torokhov
cd438a58c8 Input: aiptek - use maps in attributes
Use maps to convert for strings to internal constants and vice versa
in aiptek's sysfs attribute methods instead of open-coding it. This
results in smaller code that is also easier to maintain.

[Rene: fix a typo - stylys instead of stylus]

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Dmitry Torokhov
02fb6c385c Input: aiptek - do not check for NULL in attribute methods
It makes no sense to check for NULL in attribute methods -
we do usb_set_intfdata before creating attributes and once
attributes have been removed we are guaranteed to not be
called.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Dmitry Torokhov
b087e1f3ee Input: aiptek - use attribute group
Use attribute group to simplify error handling and reduce code.

[Rene: add missing NULL to properly terminate aiptek_attributes]

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Dmitry Torokhov
5c659c62f9 Input: aiptek - remove vendor and product attributes from sysfs
They are already exported by input core; there is no need to do it twice.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Dmitry Torokhov
9b40ed088b Input: aiptek - do not try to export associated event device
Do not try to export via sysfs associated event device - it does not
work when evdev is a module that is loaded after aiptek; also it pokes
too deply into input core internals.

Userspace should rely on udev to set up permanent device name for
the tablet.

Signed-off-by: Rene van Paassen <rene.vanpaassen@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Aristeu Rozanski
aea6a46122 Input: psmouse - add support for Cortron PS/2 Trackballs
Cortron PS/2 Trackballs (700-0001A) report the 4th button using the 4th
bit of the first packet (yes, it breaks the standard PS/2 protocol).
This patch adds an extra protocol to generate BTN_SIDE based on the 4th
bit. There's no way to detect those trackballs using any kind of special
sequence, thus the protocol must be activated explicitely by writing
into 'protocol' sysfs attribute:

	echo -n "cortps" > /sys/devices/platform/i8042/serio1/protocol

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Jan Kratochvil
e01a06e8df Input: xpad - add Xbox360 gamepad rumble support
Implementation is using force feedback support for memoryless devices.

Signed-off-by: Jan Kratochvil <honza@jikos.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Jan Kratochvil
c7d9f7eb30 Input: xpad - add support for Xbox 360 gamepad
Xbox 360 gamepad is slightly different then the previous model so it has
its own version of process_packet method. Detection of this new device
relies on USB_DEVICE_INTERFACE_PROTOCOL macro. This device got vendor
specific subclass so it can't be matched with USB_INTERFACE_INFO and
we need only one interface protocol from four availaible. It means
USB_DEVICE can't be used either.

Added xpad360_btn structure with additional buttons for x360 gamepad.
Added xtype into xpad_device structure to distinguish between different
types of xbox devices.

Signed-off-by: Jan Kratochvil <honza@jikos.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10 00:35:15 -04:00
Linus Torvalds
cab8e5c444 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: document some of keycodes
  Input: add a new EV_SW SW_RADIO event, for radio switches on laptops
  Input: serio - take drv_mutex in serio_cleanup()
  Input: atkbd - use printk_ratelimit for spurious ACK messages
  Input: atkbd - throttle LED switching
  Input: i8042 - add HP Pavilion ZT1000 to the MUX blacklist
2007-07-05 15:55:37 -07:00
Dmitry Torokhov
33143ea1a3 Input: serio - take drv_mutex in serio_cleanup()
We need to take serio->drv_mutex in serio_cleanup() to prevent the
function from being called while driver is in the middle of attaching
to a serio port. Such situation can happen with i8042 and atkbd drivers
if user rapidly presses Ctrl-Alt-Del during system startup, and leads
to kernel oops.

Reported-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-29 01:06:35 -04:00
Qi Yong
9f7a60d6e4 Input: atkbd - use printk_ratelimit for spurious ACK messages
Signed-off-by: Qi Yong <qiyong@mail.fc-cn.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-28 00:47:10 -04:00
Dmitry Torokhov
da4249c99f Input: atkbd - throttle LED switching
On some boxes keyboard controllers are too slow to withstand
continuous flow of requests to turn keyboard LEDs on and off
and start losing some keypresses or even all of them.

Delay executing of LED switching request if we had another one
within 50 ms thus easing load on the controller.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-28 00:46:56 -04:00
Dmitry Torokhov
9d9d50bb2e Input: i8042 - add HP Pavilion ZT1000 to the MUX blacklist
This should get rid of "atkbd.c: Suprious NAK on isa0060/serio0"
messages caused by broken MUX implementation. The box does not
have external PS/2 ports and, according to documentation,
automatically disables touchpad when an external mouse is plugged
into a port replicator, so MUX mode would not work anyway.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-28 00:44:27 -04:00
Andi Kleen
0e52d3281f x86_64: Quieten Atari keyboard warnings in Kconfig
Not directly related to x86, but I got tired of seeing these warnings on every
kconfig update when building on a non m68k box:

drivers/input/keyboard/Kconfig:170:warning: 'select' used by config symbol 'KEYBOARD_ATARI' refers to undefined symbol 'ATARI_KBD_CORE'
drivers/input/mouse/Kconfig:182:warning: 'select' used by config symbol 'MOUSE_ATARI' refers to undefined symbol 'ATARI_KBD_CORE'

I moved the definition of ATARI_KBD_CORE into drivers/input/keyboard/Kconfig
so it's always seen by Kconfig.

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-20 14:27:26 -07:00
Linus Torvalds
eedab661a5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: move input-polldev to drivers/input
  Input: i8042 - add ULI EV4873 to noloop list
  Input: i8042 - add ASUS P65UP5 to the noloop list
  Input: usbtouchscreen - fix fallout caused by move from drivers/usb
2007-06-13 14:09:39 -07:00
Dmitry Torokhov
893e7c2db0 Input: move input-polldev to drivers/input
To work around deficiences in Kconfig that allows to "select"
a symbol without automatically selecting all dependencies for
that symbol move input-polldev from drivers/input/misc to
drivers/input thus removing extra dependency on CONFIG_INPUT_MISC.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-13 01:49:58 -04:00
Dmitry Torokhov
8c4df74e02 Input: i8042 - add ULI EV4873 to noloop list
The box does not implement AUX LOOP command properly and so we
can't test for AUX IRQ delivery so blacklist it via DMI and
assume that AUX port is present.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-12 00:33:32 -04:00
Dmitry Torokhov
90245c17d3 Input: i8042 - add ASUS P65UP5 to the noloop list
This board does not raise AUX IRQ in response to AUX LOOP command
which interferes with our test for proper AUX IRQ wiring. Put it
in the blacklist and assume mouse is present.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-12 00:33:27 -04:00
Ondrej Zary
c6f8d7066d Input: usbtouchscreen - fix fallout caused by move from drivers/usb
During the move from drivers/usb/input into drivers/input/touchscreen
Kconfig variables were shuffled a bit to use a new namespace
(CONFIG_TOUCHSCREEN) while usbtouchscreen was still using old ones.

Also noticed by Robert P. J. Day <rpjday@mindspring.com>

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-12 00:33:13 -04:00