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path: root/drivers/input/mouse/appletouch.c
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2014-03-30Input: appletouch - fix jumps when additional fingers are detectedClinton Sprain
Addresses issues related to when a second finger enters or leaves the field, causing the cursor to jump or the page to scroll unexpectedly; now, we discard any movement change that happens at the exact moment we detect a change in the number of fingers touching the trackpad. This doesn't completely resolve the issue but does greatly mitigate it. Signed-off-by: Clinton Sprain <clintonsprain@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-03-30Input: appletouch - implement sensor data smoothingClinton Sprain
Use smoothed version of sensor array data to calculate movement and add weight to prior values when calculating average. This gives more granular and more predictable movement. Signed-off-by: Clinton Sprain <clintonsprain@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-03-28Input: appletouch - dial back fuzz settingClinton Sprain
Let's dial back the default fuzz setting for most devices using this driver, based on values from user feedback from forums and bug reports. Signed-off-by: Clinton Sprain <clintonsprain@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-01-06Input: delete non-required instances of include <linux/init.h>Paul Gortmaker
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-05-04USB: input: appletouch: fix up compiler warningGreg Kroah-Hartman
My last patch fixing up the dev_* messages caused a compiler warning accidentally for an unused variable. Fix this up, as it was my fault. Cc: Alessandro Rubini <rubini@ipvvis.unipv.it> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-04USB: input: appletouch.c: fix up dev_* messagesGreg Kroah-Hartman
Previously I had made the struct device point to the input device, but after talking with Dmitry, he said that the USB device would make more sense for this driver to point to. So converted it to use that instead. CC: Alessandro Rubini <rubini@ipvvis.unipv.it> CC: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-01USB: appletouch.c: remove dbg() usageGreg Kroah-Hartman
dbg() was a very old USB-specific macro that should no longer be used. This patch removes it from being used in the driver and uses dev_dbg() instead. CC: Alessandro Rubini <rubini@ipvvis.unipv.it> CC: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-01USB: input: appletouch.c: fix up dev_err() usageGreg Kroah-Hartman
We should always reference the input device for dev_err(), not the USB device. Fix up the places where I got this wrong. Reported-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> CC: Alessandro Rubini <rubini@ipvvis.unipv.it> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-25USB: appletouch.c: remove err() usageGreg Kroah-Hartman
err() was a very old USB-specific macro that I thought had gone away. This patch removes it from being used in the driver and uses dev_err() instead. CC: Alessandro Rubini <rubini@ipvvis.unipv.it> CC: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-11-18USB: convert drivers/input/* to use module_usb_driver()Greg Kroah-Hartman
This converts the drivers in drivers/input/* to use the module_usb_driver() macro which makes the code smaller and a bit simpler. Added bonus is that it removes some unneeded kernel log messages about drivers loading and/or unloading. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Ville Syrjala <syrjala@sci.fi> Cc: Henk Vergonet <Henk.Vergonet@gmail.com> Cc: Alessandro Rubini <rubini@ipvvis.unipv.it> Cc: Henrik Rydberg <rydberg@euromail.se> Cc: "Magnus Hörlin" <magnus@alefors.se> Cc: Chris Moeller <kode54@gmail.c> Cc: Christoph Fritz <chf.fritz@googlemail.com> Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Edwin van Vliet <edwin@cheatah.nl> Cc: Ping Cheng <pingc@wacom.com> Cc: Eduard Hasenleithner <eduard@hasenleithner.at> Cc: Alexander Strakh <strakh@ispras.ru> Cc: Glenn Sommer <gsommer@datanordisk.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-31Input: appletouch - remove extra KERN_DEBUG use from dprintkJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-08-09Revert "Input: appletouch - fix integer overflow issue"Benjamin Herrenschmidt
This reverts commit 04b4b88cca0ebe3813b4b6f014fb6a0db380b137. While the original problem only caused a slight disturbance on the edge of the touchpad, the commit above to "fix" it completely breaks operation on some other models such as mine. We'll sort this out separately, revert the patch for now. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-05-20USB: rename usb_buffer_alloc() and usb_buffer_free() usersDaniel Mack
For more clearance what the functions actually do, usb_buffer_alloc() is renamed to usb_alloc_coherent() usb_buffer_free() is renamed to usb_free_coherent() They should only be used in code which really needs DMA coherency. All call sites have been changed accordingly, except for staging drivers. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Pedro Ribeiro <pedrib@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-11Input: appletouch - fix integer overflow issueVadim Zaliva
When reading data from Geyser 2 touchpads used on post Oct 2005 Apple PowerBooks the driver was casting X and Y coordinates values to 'signed char'. Testing on one of such PowerBooks I have noticed that touchpad always generates positive values, but some of them are greater that 127, and thus, when cast to 'signed char' being interpreted as a negative. Such bigger values have been observed infrequently, closer to the edges of a touchpad, so the problem was not very visible. Nevertheless, the patch would potentially improve touchpad driver accuracy. Signed-off-by: Vadim Zaliva <lord@crocodile.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-03Input: appletouch - improve finger detectionJeremy Huddleston
The appletouch driver is prone to reporting multiple fingers when only one is pressing. The appletouch driver queries an array of pressure sensors and counts local maxima in pressure to determine the number of fingers. It just does this on the raw values, so a data stream like: 0 100 250 300 299 300 250 100 0 actually registers as 2 fingers. This patch updates the logic to ignore small dips in pressure that are less than the threshold. Signed-off-by: Jeremy Huddleston <jeremyhu@freedesktop.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28Input: appletouch - fix DMA to/from stack bufferBob Copeland
CONFIG_DMA_API_DEBUG spotted an instance of appletouch using an array on the stack as a DMA buffer for certain hardware. Change it to use a kmalloc()ed buffer instead. Signed-off-by: Bob Copeland <me@bobcopeland.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-10-29Input: appletouch - driver refactoringStelian Pop
The appletouch driver has grown up from supporting only a couple of touchpads into supporting many touchpads, which can have different number of sensors, different aspect ratios etc. This patch cleans up the current driver code and makes it easy to support the features of each different touchpad. As a side effect, this patch also modifies the 'Y' multiplication factor of the 'geyser3' and 'geyser4' touchpads (found on Core Duo and Core2 Duo MacBook and MacBook Pro laptops) in order to make the touchpad output match the aspect ratio of the touchpad (Y factor changed from 43 to 64). [dtor@mail.ru: make atp_info constant] Signed-off-by: Stelian Pop <stelian@popies.net> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-08-08Input: appletouch - handle geyser 3/4 status bitsSven Anders
Implement support for status bits on Geyser 3/4. Signed-off-by: Sven Anders <anders@anduras.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-08-08Input: appletouch - prepare for geyser 3/4 handlingSven Anders
Split complete function into separate functions for GEYSER1/2 and GEYSER 3/4. Signed-off-by: Sven Anders <anders@anduras.de> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-06-17Merge branch 'for-linus' into nextDmitry Torokhov
Conflicts: drivers/input/mouse/appletouch.c
2008-06-17Input: appletouch - implement reset-resume logicOliver Neukum
On some boxes the touchpad needs to be reinitialized after resume to make it function again. This fixes bugzilla #10825. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-05-16Input: appletouch - simplify touchpad type detectionSven Anders
This patch simplifies type detection and removes unnecessary code. Signed-off-by: Sven Anders <anders@anduras.de> [jberg: don't typedef, checkpatch clean, remove useless comments, ...] Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-05-16Input: appletouch - miscellaneous code cleanupsJohannes Berg
This patch does some code cleanups in appletouch: * useless comment removal * make almost checkpatch clean * make sparse clean Signed-off-by: Sven Anders <anders@anduras.de> [jberg: most of the changes including removing much of the original patch] Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-05-16Input: replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-04-02Input: appletouch - add product IDs for the 4th generation MacBooksTobias Mueller
Signed-off-by: Tobias Mueller <Tobias_Mueller@twam.info> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-11-01Input: appletouch - idle reset logic broke older FountainsDmitry Torokhov
Fountains do not support change mode request and therefore should be excluded from idle reset attempts. Also: - do not re-submit URB when we decide that touchpad needs to be reinicialized - do not repeat size detection when reinitializing the touchpad - Add missing KERN_* prefixes to messages Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Johannes Berg <johannes@sipsolutions.net>
2007-10-22Input: appletouch - apply idle reset logic to all touchpadsAnton Ekblad
Not only Geyser 3 but also Geyser 1 need to be reset after they become idle to stop them from needlessly waking up the kernel. Do idle reset on all touchpads, regardless of their version - if we see 10 empty packets the touchpad needs to be reset; good touchpads should not send empty packets anyway. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-10-13Input: appletouch - another fix for idle reset logicSoeren Sonnenburg
Make sure we reset idlecount when we get a good (non-empty) packet. Signed-off-by: Soeren Sonnenburg <kernel@nn7.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-09-25Input: appletouch - fix idle reset logicThomas Rohwer
Idle count should only be incremented when touchpad button is not pressed, otherwise reset may happen at a wrong time and touchpad will never report button release event. Signed-off-by: Thomas Rohwer <trohwer@tng.de> Acked-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-20Input: appletouch - improve powersaving for Geyser3 devicesSoeren Sonnenburg
The appletouch geyser3 devices found in the Intel Macs (and possibly some later PPC ones?) send a constant stream of packets after the first touch. This results in the kernel waking up around once every couple of milliseconds to process them, making it almost impossible to spend any significant amount of time in C3 state on a dynamic HZ kernel. Sending the mode initialization code makes the device shut up until it's touched again. This patch does so after receiving 10 packets with no interesting content. Signed-off-by: Soeren Sonnenburg <kernel@nn7.de> Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-05-08Input: move USB mice under drivers/input/mouseDmitry Torokhov
This will allow concentrating all input devices in one place in {menu|x|q}config. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
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