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path: root/drivers/input/mouse/trackpoint.c
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* Input: trackpoint - Optimize trackpoint init to use power-on resetShawn Nematbakhsh2013-04-191-86/+163
| | | | | | | | | | | | | | The trackpoint driver sets various parameter default values, all of which happen to be power-on defaults (Source: IBM TrackPoint Engineering Specification, Version 4.0. Also confirmed by empirical data). By sending the power-on reset command to reset all parameters to power-on state, we can skip the lengthy process of programming all parameters. In testing, ~2.5 secs of time writing parameters was reduced to .35 seconds waiting for power-on reset to complete. Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: trackpoint - use psmouse_fmt() for messagesJJ Ding2012-04-101-6/+8
| | | | | | | Use psmouse_*() macros introduced in commit b5d21704361ee. Signed-off-by: JJ Ding <dgdunix@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: convert obsolete strict_strtox to kstrtoxJJ Ding2011-11-091-5/+12
| | | | | | | | | | | With commit 67d0a0754455f89ef3946946159d8ec9e45ce33a we mark strict_strtox as obsolete. Convert all remaining such uses in drivers/input/. Also change long to appropriate types, and return error conditions from kstrtox separately, as Dmitry sugguests. Signed-off-by: JJ Ding <dgdunix@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: return -ENOMEM in select drivers when memory allocation failsDavidlohr Bueso2010-10-131-1/+1
| | | | | | | Instead of using -1 let's start using proper error codes. Signed-off-by: Davidlohr Bueso <dave@gnu.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* Input: psmouse - rework setting of BTN_MIDDLE capabilityDmitry Torokhov2009-11-201-5/+8
| | | | | | | | | | Do not start protocol detection assuming that middle mouse is present, instead let individual protocols explicitly set this capability. This fixes issue with Synaptics touchpads pretending that they have middle button when hardware clearly reports otherwise. Reported-and-tested-by: Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: psmouse - use boolean typeDmitry Torokhov2009-09-101-1/+1
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: convert drivers to use strict_strtoul()Joe Rouvier2008-09-101-6/+2
| | | | | | | strict_strtoul() allows newline character at the end of the the input string and therefore is more user-friendly. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: drop redundant includes of moduleparam.hJulia Lawall2008-01-211-1/+0
| | | | | | | | Drop #include <linux/moduleparam.h> in files that also include linux/module.h, since module.h includes moduleparam.h already. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: trackpoint - handle sysfs errorsJeff Garzik2006-11-021-2/+10
| | | | | | | Also use kzalloc instead of kcalloc since we are allocating single object. Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: trackpoint - activate protocol when resumingDmitry Torokhov2006-08-041-18/+34
| | | | | | | Trackpoint driver was not sending the magic knock sequence upon resume causing incorrect device behavior after resuming from disk. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: trackpoint - enable devices connected to external portDmitry Torokhov2006-02-151-6/+14
| | | | Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: rework psmouse attributes to reduce module sizeDmitry Torokhov2005-09-041-88/+95
| | | | | | | | | Rearrange attribute code to use generic show and set handlers instead of replicating them for every attribute; switch to using attribute_group instead of creating all attributes manually. All this saves about 4K. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* Input: psmouse - add support for IBM TrackPoint devices.Stephen Evanchik2005-08-081-0/+297
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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