path: root/drivers/hid/hid-ntrig.c
AgeCommit message (Collapse)Author
2010-09-08HID: ntrig: identify firmware versionRafi Rubin
This adds firmware version polling to the end of probe and reports the version both in the raw form and proccessed to match the formatting used by N-Trig. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-08-30HID: ntrig: a bit of whitespace cleanupRafi Rubin
Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-06-21HID: ntrig: add support for new firwmare versionsmicki
Signed-off-by: Micki Balanga <micki@n-trig.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-11HID: ntrig: add filtering module parametersRafi Rubin
Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-11HID: ntrig: add sysfs access to filter parametersRafi Rubin
This should make it a little more convenient to tweak the filtering parameters on the fly. Also unlike load-time parameters, this provides independent tuning for each device conntected. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-11HID: ntrig: add sensitivity and responsiveness supportRafi Rubin
The old rejection size thresholds were too high for the 12" devices. Larger surfaces like the Dell Studio17 exacerbated the problem since contact size is reported on the same logical scale, making a contact look smaller to the larger screen. Since we have observed erroneous ghost events from these devices we still need to filter the incoming stream. The prior size threshold filter is still in place, though with defaults set to leave it off. This patch adds the two new classes of filters, those that reject live frames before activation, and those that reject empty frames until deactivation. These filters are expressed in terms of a simple state machine for clarity (I hope). The activation filter has two components, slack and size, events are discarded until either is satisfied. Slack is defined as the number of seemingly good contacts to read before accepting the stream as valid (if the threshold is reached in the middle of a frame the remainder of that frame is still discarded). The deactivation filter discards empty frames until hitting a deactivate slack. This time measured in frames. N-Trig devices emit 5-8 (observed so far) empty frames at the end of multitouch activity. Ignoring the first few enables us to safely and gracefully handle erroneous empty frames, thus preventing a change in the tool state which would otherwise result in things like broken lines or dragged objects being dropped in bad places. Also, now that devices with different logical densities have been observed, the aforementioned sizes are scaled from physical to logical scales once those scales are identified. Hopefully this should mean that a given threshold value means the same thing across differing devices. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-03HID: ntrig: Remove unused macro, TripleTap and QuadTapRafi Rubin
Removing the higher number taps. Their usage was incorrect and even if correct they should not be used for a touch screen. _MT_ events should be used to communicate multiple fingers. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-05-03HID: ntrig: TipSwitch for single touch mode touch.Rafi Rubin
Include TipSwitch in the touch detection decision for some single touch firmwares. Confidence and InRange are high for all finger events including those used to indicate the finger is no longer in contact with the sensor. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-04-13HID: ntrig: Emit TOUCH with DOUBLETAP for single touchRafi Rubin
I squelched TipSwitch in a recent patch which resulted in the loss of Touch events for single touch firmwares. This patch just puts Touch back in for single touch, and bundles it with DoubleTap (like the multitouch code). The two events are used to convey the same message to different drivers. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-04-07HID: ntrig: explain firmware quirkJiri Kosina
Commit 6549981bc54777c ("HID: fix N-trig touch panel with recent firmware") adds a quirk that is needed for devices with more recent firmware so that they become operational. As it's not directly obvious from the code why is it needed, a comment is worthwile. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-04-06HID: fix N-trig touch panel with recent firmwareStephane Chatty
Added an init message that avoids device freeze with recent firmware. Signed-off-by: Stephane Chatty <chatty@enac.fr> Tested-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
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>
2010-03-10HID: ntrig: fix touch eventsRafi Rubin
This reinstates the lost unpressing of BTN_TOUCH. To prevent undesireably touch toggles this also deals with tip switch events. Added a trap to prevent going out of bounds for hidinputs with empty reports. Clear bits of unused buttons which result in misidentification. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-16HID: hid-ntrig: Single touch mode tapRafi Rubin
Add DOUBLETAP to events emitted when in single touch only mode. Users with a single touch firmware report not seeing the DOUBLETAP events; this is a side effect of dropping old mapping for confidence. The confidence mapping may be fine for singletouch mode but causes problems in multitouch mode. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-16HID: hid-ntrig: multitouch cleanup and fixRafi Rubin
This cleans up the identification of multitouch groups and enables the end of group sync. Taps are now explicitly handled to adjust for the changes in the event stream in multitouch mode. Added triple and quad tap for the benefit of tools that recognize different tap types but do not have full multi touch support. This cleans up the behavior particularly for the latest firmware, which didn't work particularly well with the older version of the driver. In this form, when multitouch is active, both mt and st events will come out of the "N-Trig MultiTouch" device. And when its not st events will come out of "N-Trig Touchscreen". Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-16HID: n-trig: remove unnecessary tool switchingRafi Rubin
With the pen and touch split apart, we no longer need to inject additional tool switching events. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-16HID: hid-ntrig add multi input quirk and clean upRafi Rubin
Added a quirk to enable distinct input devices. The digitizer utilizes three inputs to represent pen, multitouch and a normal touch screen. With the Pen partitioned, it behaves well and does not need special handling. Also, I set names to the input devices to clarify the functions of the various inputs. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-07-23HID: adding __init/__exit macros to module init/exit functionsPeter Huewe
Trivial patch which adds the __init and __exit macros to the module_init / module_exit functions of several HID drivers from drivers/hid/ Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-07-23HID: ntrig tool separation and pen usagesRafi Rubin
When both touch and pen are active send a tool announcement before sending any status changes so that event users may differentiate which tool is changing. Restored three usage codes used by the pen. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Acked-by: Stephane Chatty <chatty@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-05-20HID: Multitouch support for the N-Trig touchscreenStephane Chatty
Adds support for multitouch interaction on the N-Trig touchscreen, using the new ABS_MT_* input constants. Single touch support works as previously. This code was tested against two versions of the N- Trig firmware: one that supports dual pen/finger single touch, and one that supports finger multitouch but no pen at all. Copyright notices that looked wrong were removed, as it seems that there is only code written in 2009 by Rafin Rubin and Stephane Chatty in this file. Signed-off-by: Stephane Chatty <chatty@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-30HID: remove compat stuffJiri Slaby
This removal was scheduled and there is no problem with later distros to adapt for the new bus, thanks to aliases. module-init-tools map files are deprecated nowadays, so that the patch which introduced hid ones into the m-i-t won't be accepted and hence there is no reason for leaving compat stuff in. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-01-04HID: add n-trig digitizer supportRafi Rubin
Added quirks for the N-Trig digitizer. Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu> Signed-off-by: Jiri Kosina <jkosina@suse.cz>