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path: root/drivers/char/keyboard.c
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* [PATCH] Fix SAK_work workqueue initialization.Eric W. Biederman2007-02-13
| | | | | | | | | | | | | | | | | | | | | | | Somewhere in the rewrite of the work queues my cleanup of SAK handling got broken. Maybe I didn't retest it properly or possibly the API was changing so fast I missed something. Regardless currently triggering a SAK now generates an ugly BUG_ON and kills the kernel. Thanks to Alexey Dobriyan <adobriyan@openvz.org> for spotting this. This modifies the use of SAK_work to initialize it when the data structure it resides in is initialized, and to simply call schedule_work when we need to generate a SAK. I update both data structures that have a SAK_work member for consistency. All of the old PREPARE_WORK calls that are now gone. If we call schedule_work again before it has processed it has generated the first SAK it will simply ignore the duplicate schedule_work request. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] vt: refactor console SAK processingEric W. Biederman2007-02-11
| | | | | | | | | | | | | | | | | | | | This does several things. - It moves looking up of the current foreground console into process context where we can safely take the semaphore that protects this operation. - It uses the new flavor of work queue processing. - This generates a factor of do_SAK, __do_SAK that runs immediately. - This calls __do_SAK with the console semaphore held ensuring nothing else happens to the console while we process the SAK operation. - With the console SAK processing moved into process context this patch removes the xchg operations that I used to attempt to attomically update struct pid, because of the strange locking used in the SAK processing. With SAK using the normal console semaphore nothing special is needed. Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Input: drivers/char/keyboard.c - small cleanup in k_cur()Brandon Philips2006-11-04
| | | | | | | | To save a char pointer in the final assembly change to alternate string form. Signed-off-by: Brandon Philips <brandon@ifup.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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)
* Merge branch 'for-linus' of ↵Linus Torvalds2006-10-02
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (35 commits) Input: wistron - add support for Acer TravelMate 2424NWXCi Input: wistron - fix setting up special buttons Input: add KEY_BLUETOOTH and KEY_WLAN definitions Input: add new BUS_VIRTUAL bus type Input: add driver for stowaway serial keyboards Input: make input_register_handler() return error codes Input: remove cruft that was needed for transition to sysfs Input: fix input module refcounting Input: constify input core Input: libps2 - rearrange exports Input: atkbd - support Microsoft Natural Elite Pro keyboards Input: i8042 - disable MUX mode on Toshiba Equium A110 Input: i8042 - get rid of polling timer Input: send key up events at disconnect Input: constify psmouse driver Input: i8042 - add Amoi to the MUX blacklist Input: logips2pp - add sugnature 56 (Cordless MouseMan Wheel), cleanup Input: add driver for Touchwin serial touchscreens Input: add driver for Touchright serial touchscreens Input: add driver for Penmount serial touchscreens ...
| * Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Dmitry Torokhov2006-09-19
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| * | Input: make input_register_handler() return error codesDmitry Torokhov2006-09-14
| | | | | | | | | | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| * | Input: constify input coreDmitry Torokhov2006-09-14
| | | | | | | | | | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* | | [PATCH] vt: rework the console spawning variablesEric W. Biederman2006-10-02
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is such a rare path it took me a while to figure out how to test this after soring out the locking. This patch does several things. - The variables used are moved into a structure and declared in vt_kern.h - A spinlock is added so we don't have SMP races updating the values. - Instead of raw pid_t value a struct_pid is used to guard against pid wrap around issues, if the daemon to spawn a new console dies. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Input: keyboard - change to use kzallocDmitry Torokhov2006-08-04
|/ | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: keyboard - simplify emulate_raw() implementationDmitry Torokhov2006-07-19
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: keyboard - remove static variable and clean up initializationDmitry Torokhov2006-07-19
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: introduce input_inject_event() functionDmitry Torokhov2006-07-06
| | | | | | | | | | Create input_inject_event() function which is to be used by input handlers as opposed to input_event() which is reserved for drivers implementing input devices. The difference is that if device is "grabbed" by some process input_inject_event() will ignore events unless sent from the handle that is currently owns the device. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: add start() method to input handlersDmitry Torokhov2006-07-06
| | | | | | | | | The new start() method is called immediately after connect() and also when "grabbed" device is released by its owner. This will allow input handlers to re-synchronize state of once-grabbed device with the rest of devices. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds2006-06-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: Input: iforce - remove some pointless casts Input: psmouse - add support for Intellimouse 4.0 Input: atkbd - fix HANGEUL/HANJA keys Input: fix misspelling of Hangeul key Input: via-pmu - add input device support Input: rearrange exports Input: fix formatting to better follow CodingStyle Input: reset name, phys and uniq when unregistering Input: return correct size when reading modalias attribute Input: change my e-mail address in MAINTAINERS file Input: fix potential overflows in driver/input/keyboard Input: fix potential overflows in driver/input/touchscreen Input: fix potential overflows in driver/input/joystick Input: fix potential overflows in driver/input/mouse Input: fix accuracy of fixp-arith.h Input: iforce - use ENOSPC instead of ENOMEM Input: constify drivers/char/keyboard.c
| * Input: atkbd - fix HANGEUL/HANJA keysDmitry Torokhov2006-06-26
| | | | | | | | | | | | | | | | Make atkbd report HANGEUL/HANJA keys by default and use correct scan codes for these keys (they were swapped). Also make sure their scancodes reported as EV_MSC/MSC_SCAN events. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| * Input: fix misspelling of Hangeul keyJerome Pinot2006-06-26
| | | | | | | | | | | | | | | | | | | | Fix a mispelling of the korean alphabet name in the input subsystem. See http://en.wikipedia.org/wiki/Hangeul#Names for more details. KEY_HANGUEL left to not break people Signed-off-by: Jerome Pinot <ngc891@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| * Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Dmitry Torokhov2006-06-26
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| * | Input: constify drivers/char/keyboard.cAndreas Mohr2006-06-05
| | | | | | | | | | | | | | | | | | Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* | | [PATCH] fix magic sysrq on strange keyboardsFredrik Roubert2006-06-26
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | Magic sysrq fails to work on many keyboards, particulary most of notebook keyboards. This patch fixes it. The idea is quite simple: Discard the SysRq break code if Alt is still being held down. This way the broken keyboard can send the break code (or the user with a normal keyboard can release the SysRq key) and the kernel waits until the next key is pressed or the Alt key is released. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] kernel/sys.c: cleanupsAdrian Bunk2006-06-25
|/ | | | | | | | | | | | | | - proper prototypes for the following functions: - ctrl_alt_del() (in include/linux/reboot.h) - getrusage() (in include/linux/resource.h) - make the following needlessly global functions static: - kernel_restart_prepare() - kernel_kexec() [akpm@osdl.org: compile fix] Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Input: allow using several chords for brailleSamuel Thibault2006-04-26
| | | | | | | | For coping with bad keyboards, permit to type a braille pattern by pressing several chords. By default, only one chord is needed. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: add support for Braille devicesSamuel Thibault2006-04-02
| | | | | | | | | | - Add KEY_BRL_* input keys and K_BRL_* keycodes; - Add emulation of how braille keyboards usually combine braille dots to the console keyboard driver; - Add handling of unicode U+28xy diacritics. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* [SPARC]: introduce a SPARC Kconfig symbolAdrian Bunk2005-12-23
| | | | | | | | | | Introduce a Kconfig symbol SPARC that is defined on both the sparc and sparc64 architectures. This symbol makes some dependencies more readable. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* Input: clean up whitespace and formatting in drivers/char/keyboard.cDmitry Torokhov2005-09-10
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Manual merge with LinusDmitry Torokhov2005-09-09
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| * [PATCH] timer initialization cleanup: DEFINE_TIMERIngo Molnar2005-09-09
| | | | | | | | | | | | | | | | | | | | Clean up timer initialization by introducing DEFINE_TIMER a'la DEFINE_SPINLOCK. Build and boot-tested on x86. A similar patch has been been in the -RT tree for some time. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Input: fix checking whether new keycode fits size-wiseIan Campbell2005-09-04
|/ | | | | | | | When dev->keycodesize == sizeof(int) the old code produces incorrect result. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: check keycodesize when adjusting keymapsVojtech Pavlik2005-07-24
| | | | | | | | When changing key mappings we need to make sure that the new keycode value can be stored in dev->keycodesize bytes. Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* [PATCH] make some things staticAdrian Bunk2005-05-05
| | | | | | | | | | This patch makes some needlessly global identifiers static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Arjan van de Ven <arjanv@infradead.org> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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