Commit Graph

90 Commits

Author SHA1 Message Date
Dmitry Torokhov
908cf4b925 Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into next 2008-07-21 00:55:14 -04:00
Matthew Garrett
92c4989092 Input: add switch for dock events
Add a SW_DOCK switch to input.h.  ACPI docks currently send their docking
status as a uevent, but not all docks are ACPI or correspond to a device.
In that case, it makes more sense to simply generate an input event on
docking or undocking.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-07-19 00:52:43 -04:00
Mark Brown
5ec461d083 Input: add microphone insert switch definition
Add a new switch type to the input API for reporting microphone
insertion. This will be used by the ALSA jack reporting API.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-07-19 00:52:36 -04:00
Bastien Nocera
4bbff7e408 Input: add KEY_MEDIA_REPEAT definition
This patch adds the Repeat key to the input layer. The usage
in the HUT is 0xBC (listed under "15.7 Transport Controls").

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-06-30 09:25:12 -04:00
Dmitry Torokhov
15439dd37f Merge branch 'for-linus' into next
Conflicts:

	drivers/input/mouse/appletouch.c
2008-06-17 12:02:44 -04:00
Dmitry Torokhov
f6d65610df Input: atkbd - use ushort instead of uchar keymap
Since some of the keycodes defined in input.h have values greater
than 255 we should use unsigned shorts in keymaps.

Tested-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-06-02 00:39:45 -04:00
Henrique de Moraes Holschuh
5adad01339 Input: rename SW_RADIO to SW_RFKILL_ALL
The SW_RADIO code for EV_SW events has a name that is not descriptive
enough of its intended function, and could induce someone to think
KEY_RADIO is its EV_KEY counterpart, which is false.

Rename it to SW_RFKILL_ALL, and document what this event is for.  Keep
the old name around, to avoid userspace ABI breaks.

The SW_RFKILL_ALL event is meant to be used by rfkill master switches.  It
is not bound to a particular radio switch type, and usually applies to all
types.  It is semantically tied to master rfkill switches that enable or
disable every radio in a system.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-05-30 10:40:46 -04:00
Joe Perches
253b00f1e6 Input: remove unused defines
Remove unused to_dev, to_handler, to_handle from include/linux/input.h
Move to_handle_h from include/linux/input.h to drivers/char/keyboard.c

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-05-16 14:51:47 -04:00
Dmitry Torokhov
3797fec171 Input: remove private member from input_dev structure
Everyone should be using input_{get|set}_drvdata() by now.
Alias them to dev_{get|set}_drvdata() and remove ->private.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-04-02 00:41:00 -04:00
Dmitry Torokhov
a7097ff89c Input: make sure input interfaces pin parent input devices
Recent driver core change causes references to parent devices being
dropped early, at device_del() time, as opposed to when all children
are freed. This causes oops in evdev with grabbed devices. Take the
reference to the parent input device ourselves to ensure that it
stays around long enough.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-04-01 00:22:53 -04:00
Linus Torvalds
6e5565f949 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: (34 commits)
  Input: i8042 - non-x86 build fix
  Input: pxa27x_keypad - also enable on PXA3xx
  Input: pxa27x_keypad - add debounce_interval to the keypad platform data
  Input: pxa27x_keypad - use device resources for I/O memory mapping and IRQ
  Input: pxa27x_keypad - enable rotary encoders and direct keys
  Input: pxa27x_keypad - introduce pxa27x_keypad_config()
  Input: pxa27x_keypad - introduce driver structure and use KEY() to define matrix keys
  Input: pxa27x_keypad - remove pin configuration from the driver
  Input: pxa27x_keypad - rename the driver (was pxa27x_keyboard)
  Input: constify function pointer tables (seq_operations)
  Input: i8042 - add Fujitsu-Siemens Amilo Pro 2010 to nomux list
  Input: i8042 - enable DMI quirks on x86-64
  Input: i8042 - add Dritek quirk for Acer Aspire 9110
  Input: add input event to APM event bridge
  Input: mousedev - use BIT_MASK instead of BIT
  Input: remove duplicate includes
  Input: remove cdev from input_dev structure
  Input: remove duplicated headers in drivers/char/keyboard.c
  Input: i8042 - add Dritek keyboard extension quirk
  Input: add Tosa keyboard driver
  ...
2008-02-07 12:57:44 -08:00
Iñaky Pérez-González
303d9bf6bb rfkill: add the WiMAX radio type
Teach rfkill about wimax radios.

Had to define a KEY_WIMAX as a 'key for disabling only wimax radios',
as other radio technologies have. This makes sense as hardware has
specific keys for disabling specific radios.

The RFKILL enabling part is, otherwise, a copy and paste of any other
radio technology.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 19:26:46 -08:00
Dmitry Torokhov
0c1efd3653 Input: remove cdev from input_dev structure
Cdev field was obsolete and provided only for backward compatibility
since conversion of input core from class devices to regular devices.
It is time to remove it.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-21 01:11:08 -05:00
Dmitry Torokhov
f4f37c8ec7 Input: Add proper locking when changing device's keymap
Take dev->event_lock to make sure that we don't race with input_event() and
also force key up event when removing a key from keymap table.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-21 01:11:06 -05:00
Aristeu Rozanski
35baef2afb Input: adds the context menu key (HUT GenDesc 0x84)
Signed-off-by: Aristeu Rozanski <aris@ruivo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-11-27 00:47:04 -05:00
Aristeu Rozanski
c23f1f9c40 Input: add definitions for frame forward and frame back keys
Signed-off-by: Aristeu Rozanski <aris@ruivo.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-11-27 00:46:57 -05:00
Carlos Corbacho
f7852be649 Input: Add Euro and Dollar key codes
Most newer Acer laptops (from 2005 onwards) now ship with an extra Dollar
and Euro key either side of the 'Up' arrow. These cannot be mapped in the
traditional way, since they are not combination keys.

Signed-off-by: Carlos Corbacho <cathectic@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-10-27 23:42:32 -04:00
Jiri Slaby
7b19ada2ed get rid of input BIT* duplicate defines
get rid of input BIT* duplicate defines

use newly global defined macros for input layer. Also remove includes of
input.h from non-input sources only for BIT macro definiton. Define the
macro temporarily in local manner, all those local definitons will be
removed further in this patchset (to not break bisecting).
BIT macro will be globally defined (1<<x)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: <dtor@mail.ru>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Cc: <lenb@kernel.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: <perex@suse.cz>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <vernux@us.ibm.com>
Cc: <malattia@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00
Randy Dunlap
8f731f7d83 kernel-api docbook: fix content problems
Fix kernel-api docbook contents problems.

docproc: linux-2.6.23-git13/include/asm-x86/unaligned_32.h: No such file or directory
Warning(linux-2.6.23-git13//include/linux/list.h:482): bad line: 			of list entry
Warning(linux-2.6.23-git13//mm/filemap.c:864): No description found for parameter 'ra'
Warning(linux-2.6.23-git13//block/ll_rw_blk.c:3760): No description found for parameter 'req'
Warning(linux-2.6.23-git13//include/linux/input.h:1077): No description found for parameter 'private'
Warning(linux-2.6.23-git13//include/linux/input.h:1077): No description found for parameter 'cdev'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: WU Fengguang <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:35 -07:00
Linus Torvalds
f2e1d89f9b 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: (40 commits)
  Input: use full RCU API
  Input: remove tsdev interface
  Input: add support for Blackfin BF54x Keypad controller
  Input: appletouch - another fix for idle reset logic
  HWMON: hdaps - switch to using input-polldev
  Input: add support for SEGA Dreamcast keyboard
  Input: omap-keyboard - don't pretend we support changing keymap
  Input: lifebook - fix X and Y axis range
  Input: usbtouchscreen - add support for GeneralTouch devices
  Input: fix open count handling in input interfaces
  Input: keyboard - add CapsShift lock
  Input: adbhid - produce all CapsLock key events
  Input: ALPS - add signature for ThinkPad R61
  Input: jornada720_kbd - send MSC_SCAN events
  Input: add support for the HP Jornada 7xx (710/720/728) touchscreen
  Input: add support for HP Jornada 7xx onboard keyboard
  Input: add support for HP Jornada onboard keyboard (HP6XX)
  Input: ucb1400_ts - use schedule_timeout_uninterruptible
  Input: xpad - fix dependancy on LEDS class
  Input: auto-select INPUT for MAC_EMUMOUSEBTN option
  ...

Resolved conflicts manually in drivers/hwmon/applesmc.c: converting from
a class device to a device and converting to use input-polldev created a
few apparently trivial clashes..
2007-10-15 13:41:39 -07:00
Khelben Blackstaff
e2bca0749c Input: add KEY_LOGOFF
HUT 1.12 defines Logoff usage 0x19c in Consumer page. There are
keyboards out there emitting this usage code (for example Microsoft
Wireless Laser Keyboard 6000). Add this key so that HID code could
map usages to it.

Signed-off-by: Khelben Blackstaff <eye.of.the.8eholder@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-10-14 13:40:02 +02:00
Jiri Kosina
4dc21a8005 Input: add KEY_SPELLCHECK
HUT 1.12 defines Spell Check usage 0x1ab in Consumer page. There are
keyboards out there emitting this usage code (for example Microsoft
Natural Ergonomic Keyboard 4000). Add this key so that HID code could
map usages to it.

Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-10-14 13:40:00 +02:00
Dmitry Torokhov
b981d8b3f5 Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	drivers/macintosh/adbhid.c
2007-10-12 21:27:47 -04:00
Ivo van Doorn
e0665486b7 [RFKILL]: Add support for ultrawideband
This patch will add support for UWB keys to rfkill,
support for this has been requested by Inaky.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:23 -07:00
Linus Torvalds
532df780a2 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: usbtouchscreen - correctly set 'phys'
  Input: i8042 - add HP Pavilion DV4270ca to the MUX blacklist
  Input: i8042 - fix modpost warning
  Input: add more Braille keycodes
2007-09-12 07:57:00 -07:00
Samuel Thibault
9e3d3d07de Input: add more Braille keycodes
Some braille keyboards have 10 dots, so extend the Input braille keys
definitions.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-09-04 23:16:04 -04:00
Dmitry Torokhov
8006479c9b Input: implement proper locking in input core
Also add some kerneldoc documentation to input.h

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-08-30 00:22:11 -04:00
Yu Luming
a7ecd1ea91 ACPI: video: Add keycode for ACPI video driver hotkey events.
Signed-off-by: Luming Yu <luming.yu@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-23 23:05:55 -04:00
Dmitry Torokhov
501cc54c4d Input: mark some functions __must_check
Mark input_register_device() and input_register_handler() functions
as __must_check so authors of new drivers add error handling right
away.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-18 01:20:58 -04:00
Dmitry Torokhov
5517853712 Input: document intended meaning of KEY_SWITCHVIDEOMODE
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-18 00:38:45 -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
4e4eda866e Input: document some of keycodes
Document some of keycodes, based on USB HUT 1.12 and current mapping
in HID driver.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-29 01:10:54 -04:00
Henrique de Moraes Holschuh
c77da17803 Input: add a new EV_SW SW_RADIO event, for radio switches on laptops
Many laptops have rf-kill physical switches that are not keys, but slider
or rocker switches.  Often (like in all ThinkPads with a radio kill slider
switch), they have both a slider/rocker switch and a hot key.

Trying to kludge a real switch to act like a key is not a very smart thing
to do if you can help it, and it gets specially bad when you are going to
have both in the same machine.  So, we do the right thing and add an input
EV_SW event for radio kill switches.

The EV_SW SW_RADIO event is defined with positive logic, i.e. when the
switch is active, the radios are to be enabled.  When the switch is
inactive, the radios are to be disabled.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-06-29 01:08:49 -04:00
Linus Torvalds
15700770ef Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (38 commits)
  kconfig: fix mconf segmentation fault
  kbuild: enable use of code from a different dir
  kconfig: error out if recursive dependencies are found
  kbuild: scripts/basic/fixdep segfault on pathological string-o-death
  kconfig: correct minor typo in Kconfig warning message.
  kconfig: fix path to modules.txt in Kconfig help
  usr/Kconfig: fix typo
  kernel-doc: alphabetically-sorted entries in index.html of 'htmldocs'
  kbuild: be more explicit on missing .config file
  kbuild: clarify the creation of the LOCALVERSION_AUTO string.
  kbuild: propagate errors from find in scripts/gen_initramfs_list.sh
  kconfig: refer to qt3 if we cannot find qt libraries
  kbuild: handle compressed cpio initramfs-es
  kbuild: ignore section mismatch warning for references from .paravirtprobe to .init.text
  kbuild: remove stale comment in modpost.c
  kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE
  kbuild: fix make mrproper for Documentation/DocBook/man
  kbuild: remove kconfig binaries during make mrproper
  kconfig/menuconfig: do not hardcode '.config'
  kbuild: override build timestamp & version
  ...
2007-05-06 13:21:57 -07:00
Linus Torvalds
a3d52136ee Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: (65 commits)
  Input: gpio_keys - add support for switches (EV_SW)
  Input: cobalt_btns - convert to use polldev library
  Input: add skeleton for simple polled devices
  Input: update some documentation
  Input: wistron - fix typo in keymap for Acer TM610
  Input: add input_set_capability() helper
  Input: i8042 - add Fujitsu touchscreen/touchpad PNP IDs
  Input: i8042 - add Panasonic CF-29 to nomux list
  Input: lifebook - split into 2 devices
  Input: lifebook - add signature of Panasonic CF-29
  Input: lifebook - activate 6-byte protocol on select models
  Input: lifebook - work properly on Panasonic CF-18
  Input: cobalt buttons - separate device and driver registration
  Input: ati_remote - make button repeat sensitivity configurable
  Input: pxa27x - do not use deprecated SA_INTERRUPT flag
  Input: ucb1400 - make delays configurable
  Input: misc devices - switch to using input_dev->dev.parent
  Input: joysticks - switch to using input_dev->dev.parent
  Input: touchscreens - switch to using input_dev->dev.parent
  Input: mice - switch to using input_dev->dev.parent
  ...

Fixed up conflicts with core device model removal of "struct subsystem" manually.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04 18:16:12 -07:00
Michael Schmitz
c04cb856e2 m68k: Atari keyboard and mouse support.
Atari keyboard and mouse support.
(reformating and Kconfig fixes by Roman Zippel)

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04 17:59:05 -07:00
Sam Ravnborg
dc24f0e708 kbuild: remove dependency on input.h from file2alias
Almost all definitions used by file2alias was already
present in mod_devicetable.h.
Added the last definition and killed the input.h usage.

The errornous include was pointed out
by: Jan Engelhardt <jengelh@linux01.gwdg.de>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Deepak Saxena <dsaxena@plexity.net>
2007-05-02 20:58:08 +02:00
Dmitry Torokhov
534565f254 Input: add input_set_capability() helper
Add input_set_capability() helper used to indicate that an input
device supports a certain event without need to manipulate bitmaps
directly.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-04-25 00:53:18 -04:00
Dmitry Torokhov
88a447a030 Input: prepare to switching to struct device
In preparation to switching to struct device and class device
going away provide an alias to allow drivers that create devices
to use either input_dev->cdev.dev or input_dev->dev.parent to
put them into sysfs tree. The former will go away once conversion
to struct device is complete.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-04-12 01:34:47 -04:00
Dmitry Torokhov
3abccf3608 Input: add input_{get|set}_drvdata() helpers
Add helpers to set up and access driver-specific data in input
device structure. Once conversion to struct driver is complete
we will drop input_dev->private and will use dev_get_drvdata()
and dev_set_drvdata().

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-04-12 01:33:51 -04:00
Eric Piel
6480e2a275 Input: wistron - add acerhk laptop database
Acerhk supports already a lot of laptops. Lets import its database so
that everyone can benefit of the work of Olaf Tauber. Only the "tm_new"
laptops were imported. "tm_old" laptops could be possible but requires
more testing and probably only few laptops are still alive. "dritek"
laptops should probably be imported into a different driver. Also compress
the keymaps by fitting each entry on an int. Most of the dmi matching was
written based on google searches, so it's rather prone to errors. That's
why I'm asking people to confirm it works.

Support to generate switch input events was added as some laptops indicate
lid open/close through this interface.

This adds the following hardware:
Acer TravelMate 370
Acer TravelMate 380
Acer TravelMate C300
Acer TravelMate C100
Acer TravelMate C110
Acer TravelMate 250
Acer TravelMate 350
Acer TravelMate 620
Acer TravelMate 630
Acer TravelMate 220
Acer TravelMate 230
Acer TravelMate 260
Acer TravelMate 280
Acer TravelMate 360
Acer TravelMate 2100
Acer TravelMate 2410
Acer Aspire 1500
Acer Aspire 1600
Acer Aspire 3020
Acer Aspire 5020
Medion MD 2900
Medion MD 40100
Medion MD 95400
Medion MD 96500
Fujitsu Siemens Amilo 7820

Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-04-12 01:32:34 -04:00
Dmitry Torokhov
5b2a08262a Input: rework handle creation code
- consolidate code for binding handlers to a device
 - return error codes from handlers connect() methods back to input
   core and log failures

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-04-12 01:29:46 -04:00
Marvin Raaijmakers
c8e4c77277 Input: add getkeycode and setkeycode methods
Allow drivers to implement their own get and set keycode methods. This
will allow drivers to change their keymaps without allocating huge
tables covering entire range of possible scancodes.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-03-14 22:50:42 -04:00
Florian Festi
1c1e40b5ad input/hid: Supporting more keys from the HUT Consumer Page
On USB keyboards lots of hot/internet keys are not working. This patch
adds support for a number of keys from the USB HID Usage Table
(http://www.usb.org/developers/devclass_docs/Hut1_12.pdf).

It also adds several new key codes. Most of them are used on real world
keyboards I know. I added some others (KEY_+ EDITOR, GRAPHICSEDITOR, DATABASE,
NEWS, VOICEMAIL, VIDEOPHONE) to avoid "holes".

I also added KEY_ZOOMRESET as it is possible to have a inet keyboard and a
remote control  in parallel and it makes sense to have them behave differently.

Signed-off-by: Florian Festi <ffesti@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2006-12-14 13:37:24 +01:00
Randy Dunlap
e4477d2d1b Input: add to kernel-api docbook
Add input subsystem to kernel-api docbook.
Enhance some function and parameter comments.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-24 00:43:09 -05:00
David Howells
7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Lennart Poettering
90da115145 Input: add KEY_BLUETOOTH and KEY_WLAN definitions
Some laptops have separate "rfkill" buttons for disabling/enabling
Bluetooth and WLAN.

Signed-off-by: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-19 01:59:55 -04:00
Michael Hanselmann
9a87fdded5 Input: add new BUS_VIRTUAL bus type
BUS_VIRTUAL can be used when creating virtual devices using uinput driver.

Note that when uinput is used to drive a real piece of hardware "real" bus
type (such as BUS_USB, BUS_BLUETOOTH) should be specified.

Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-19 01:59:49 -04:00
Dmitry Torokhov
4263cf0fac Input: make input_register_handler() return error codes
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-14 01:32:39 -04:00
Dmitry Torokhov
68c2a1607c Input: remove cruft that was needed for transition to sysfs
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-14 01:32:28 -04:00