path: root/drivers/input/serio/serio.c
AgeCommit message (Collapse)Author
2007-06-29Input: serio - take drv_mutex in serio_cleanup()Dmitry Torokhov
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>
2007-04-27Input: serio - do not touch bus's rwsemDmitry Torokhov
The subsystem rwsem is not used by the driver core at all, so there is no point in trying to access it. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-18Input: i8042 - let serio bus suspend portsDmitry Torokhov
Let serio subsystem take care of suspending the ports; concentrate on suspending/resuming the controller itself. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-02-07SERIO: add the sysfs driver name to all modulesGreg Kroah-Hartman
This adds the module name to all SERIO drivers, if they are built into the kernel or not. It will show up in /sys/modules/MODULE_NAME/drivers/ Cc: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-08Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Dmitry Torokhov
Conflicts: drivers/usb/input/hid.h
2006-12-07[PATCH] Add include/linux/freezer.h and move definitions from sched.hNigel Cunningham
Move process freezing functions from include/linux/sched.h to freezer.h, so that modifications to the freezer or the kernel configuration don't require recompiling just about everything. [akpm@osdl.org: fix ueagle driver] Signed-off-by: Nigel Cunningham <nigel@suspend2.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-23Input: serio - make serio_register_driver() return errorsDmitry Torokhov
Perform actual driver registration right in serio_register_driver() instead of offloading it to kseriod and return proper error code to callers if driver registration fails. Note that driver <-> port matching is still done by kseriod to speed up boot process since probing for PS/2 mice and keyboards is pretty slow. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-17Input: serio - remove serio_unregister_port_delayed()Dmitry Torokhov
Now that i8042 reserves IRQs early there are no more users of this function and it should be removed. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-02Input: serio - rearrange serio_bus initializationMarton Nemeth
Initialize serio_bus structure at compile time instead of at runtime in serio_init(). Signed-off-by: Marton Nemeth <nm127@freemail.hu> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-10-12Input: serio core - handle errors returned by device_bind_driver()Dmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-10-11Input: serio - add lockdep annotationsJiri Kosina
Signed-off-by: Jiri Kosina <jikos@jikos.cz> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
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)
2006-07-19Input: serio/gameport - check whether driver core calls succeededRandy Dunlap
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-03-14Input: serio - fix memory leakAdrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-02-19Input: initialize serio and gameport at subsystem levelDmitry Torokhov
Serio and gameport cores do not depend on other drivers and are used by code living outside of drivers/input/{gameport|serio}. Registering them at subsystem level guarantees that they are fully initialized before anyone tries to use them. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-02-19Input: serio - semaphore to mutex conversionArjan van de Ven
The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-01-13[PATCH] Add serio bus_type probe and remove methodsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04[PATCH] driver core: replace "hotplug" by "uevent"Kay Sievers
Leave the overloaded "hotplug" word to susbsystems which are handling real devices. The driver core does not "plug" anything, it just exports the state to userspace and generates events. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-20Input: make serio and gameport more swsusp friendlyDmitry Torokhov
kseriod and kgameportd used to process all pending events before checking for freeze condition. This may cause swsusp to time out while stopping tasks when resuming. Switch to process events one by one to check freeze status more often. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-06-30Input: serio - add modalias attribute and environment variable toDmitry Torokhov
simplify hotplug scripts. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-06-27Commit the manual part of the input layer merge.Linus Torvalds
git did actually warn me about the fact that I hadn't actually done an "update-cache" on these two files, but the warning was at the bottom of a list of all the files that _did_ change in the merge, so I never noticed. My bad.
2005-06-25[PATCH] Cleanup patch for process freezingChristoph Lameter
1. Establish a simple API for process freezing defined in linux/include/sched.h: frozen(process) Check for frozen process freezing(process) Check if a process is being frozen freeze(process) Tell a process to freeze (go to refrigerator) thaw_process(process) Restart process frozen_process(process) Process is frozen now 2. Remove all references to PF_FREEZE and PF_FROZEN from all kernel sources except sched.h 3. Fix numerous locations where try_to_freeze is manually done by a driver 4. Remove the argument that is no longer necessary from two function calls. 5. Some whitespace cleanup 6. Clear potential race in refrigerator (provides an open window of PF_FREEZE cleared before setting PF_FROZEN, recalc_sigpending does not check PF_FROZEN). This patch does not address the problem of freeze_processes() violating the rule that a task may only modify its own flags by setting PF_FREEZE. This is not clean in an SMP environment. freeze(process) is therefore not SMP safe! Signed-off-by: Christoph Lameter <christoph@lameter.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-20[PATCH] Driver Core: drivers/i2c/chips/w83781d.c - ↵Yani Ioannou
drivers/s390/block/dcssblk.c: update device attribute callbacks Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-05-17[PATCH] serio 'id' attributesDmitry Torokhov
move serio port's id attributes into separate subdirectory: ..devices/serioX/id_type -> ..devices/serioX/id/type ..devices/serioX/id_proto -> ..devices/serioX/id/proto Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Cc: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-17[PATCH] serio resume fixDmitry Torokhov
serio - do not attempt to immediately disconnect port if resume failed, let kseriod take care of it. Otherwise we may attempt to unregister associated input devices which will generate hotplug events which are not handled well during swsusp. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Cc: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds
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!