| 8ff21f44fa70d363477b63646847f8d08c0e20a2 |
|
25-Aug-2014 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Input: fix used slots detection breakage
Commit f8ec894945e7d205ce62be59e55e72c4304e4739 allowed external callers
use slot dropping logic, unfortunately it also broke external users of
input_mt_is_used() as we stopped incrementing frame count unless input
device was set up to automatically drop unused slots.
Fixes: f8ec894945e7d ("Input: MT - make slot cleanup callable outside
mt_sync_frame()")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=83081
Reported-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
| f8ec894945e7d205ce62be59e55e72c4304e4739 |
|
26-Jul-2014 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - make slot cleanup callable outside mt_sync_frame()
Some semi-mt drivers use the slots in a manual way, but may still
want to call parts of the frame synchronization logic. This patch
makes input_mt_drop_unused callable from those drivers.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
| a0ef6a348a47bdb3896c468608f9cd19c1c26949 |
|
08-Apr-2013 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - handle semi-mt devices in core
Most semi-mt drivers use the slots in a manual way, but really only
need to treat the finger count manually. With this patch, a semi-mt
driver may use the input-mt core for everything else.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
| 352ce2b0575f195c8e6452a9802e6c186b39409a |
|
16-Feb-2013 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - do not apply filtering on emulated events
The pointer emulation events are derived from contact values that
have already been filtered, so send the emulated events as is.
Reported-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
| 29807d1e24b7cd696442d2f600057230f084b3c7 |
|
14-Nov-2012 |
Benjamin Tissoires <benjamin.tissoires@gmail.com> |
Input: mt: add input_mt_is_used
This patch extracts the test (slot->frame == mt->frame) so that it can
be used in third party drivers.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
| 40a812044a11a8fd32202cd22bb76329dd188094 |
|
08-Nov-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - document new 'flags' argument of input_mt_init_slots()
Fixes new kernel-doc warning in input-mt.c:
Warning(drivers/input/input-mt.c:38): No description found for parameter
'flags'
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
| 5161870f51acd74442375a6693c0586996d01f44 |
|
25-Oct-2012 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Input: fix sparse warning in multitouch code
This fixes the following sparse warning:
drivers/input/input-mt.c:193:18: warning: Using plain integer as NULL pointer
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
| 22739293402966db7ca3eb0148632d986fe30465 |
|
15-Sep-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - Allow legacy pressure computation
Some drivers like to report ABS_PRESSURE in a special way.
Allow this when ABS_MT_PRESSURE is not defined.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 17a465a7f2d6ce31738a3a76591afeab165f185a |
|
01-Sep-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - Get slot by key
Some devices use an internal key for tracking which cannot be directly
mapped to slots. This patch provides a key-to-slot mapping, which can
be used by drivers of such devices.
Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 7c1a87897c75139dec258eb03e1a24fb73385b73 |
|
12-Aug-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - Add in-kernel tracking
With the INPUT_MT_TRACK flag set, the function input_mt_assign_slots()
can be used to match a new set of contacts against the currently used
slots. The algorithm used is based on Lagrange relaxation, and performs
very well in practice; slower than mtdev for a few corner cases, but
faster in most commonly occuring cases.
Tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 55e49089f4589908eb688742d2d7eff33b74ac78 |
|
22-Aug-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - Handle frame synchronization in core
Most MT drivers perform the same actions on frame synchronization.
Some actions, like dropping unseen contacts, are also unnecessarily
complex. Collect common frame synchronization tasks in a new function,
input_mt_sync_frame(). Depending on the flags set, it drops unseen
contacts and performs pointer emulation.
With init flags and frame synchronization in place, most MT drivers
can be simplified. First out are the bcm5974 and hid-multitouch
drivers, following this patch.
Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Tested-by: Ping Cheng <pingc@wacom.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| b4adbbefc2099476a4f1020041c99f52cf3cd67d |
|
11-Aug-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: MT - Add flags to input_mt_init_slots()
Preparing to move more repeated code into the mt core, add a flags
argument to the input_mt_slots_init() function.
Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Tested-by: Ping Cheng <pingc@wacom.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 7c75bf99271139ca7cb2d0cca3be11f1f7c59efd |
|
01-Sep-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: Improve the events-per-packet estimate
The events-per-packet estimate has so far been used by MT devices
only. This patch adjusts the packet buffer size to also accomodate the
KEY and MSC events. Keyboards normally send one or two keys at a
time. MT devices normally send a number of button keys along with the
MT information. The buffer size chosen here covers those cases, and
matches the default buffer size in evdev. Since the input estimate is
now preferred, remove the special input-mt estimate.
Reviewed-and-tested-by: Ping Cheng <pingc@wacom.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 8d18fba282120a4a8e4416d1202522ffae8cad58 |
|
15-Sep-2012 |
Henrik Rydberg <rydberg@euromail.se> |
Input: Break out MT data
Move all MT-related things to a separate place. This saves some
bytes for non-mt input devices, and prepares for new MT features.
Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Tested-by: Ping Cheng <pingc@wacom.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 27c347d64f5e4a7e141f6bdb85bbf59e0f1dcde6 |
|
04-Jun-2012 |
Sachin Kamat <sachin.kamat@linaro.org> |
Input: MT - fix null pointer warning
Fixes the following sparse warning:
drivers/input/input-mt.c:138:40: warning: Using plain integer as NULL pointer
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 15d0580f20f5d3f997e3823bfe39daa3d521a99d |
|
25-Oct-2011 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
drivers/input: add export.h to symbol exporting files.
These files are not modules but are exporting symbols and/or
making use of THIS_MODULE macro.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
|
| d5051272fc4860e056e34c92080369a1b63c9378 |
|
24-Aug-2011 |
Daniel Kurtz <djkurtz@chromium.org> |
Input: add BTN_TOOL_QUINTTAP for reporting 5 fingers on touchpad
"4-finger scroll" is a gesture supported by some applications and
operating systems.
"Resting thumb" is when a clickpad user rests a finger (e.g., a
thumb), in a "click zone" (typically the bottom of the touchpad) in
anticipation of click+move=select gestures.
Thus, "4-finger scroll + resting thumb" is a 5-finger gesture.
To allow userspace to detect this gesture, we send BTN_TOOL_QUINTTAP.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
|
| c5f4dec1ceb6ab773bbbefbe64a7c990c7d6b17f |
|
15-Dec-2010 |
Henrik Rydberg <rydberg@euromail.se> |
input: mt: Move tracking and pointer emulation to input-mt
The drivers using the type B protocol all report tracking information
the same way. The contact id is semantically equivalent to
ABS_MT_SLOT, and the handling of ABS_MT_TRACKING_ID only complicates
the driver. The situation can be improved upon by providing a common
pointer emulation code, thereby removing the need for the tracking id
in the driver. This patch moves all tracking event handling over to
the input core, simplifying both the existing drivers and the ones
currently in preparation.
Acked-by: Ping Cheng <pingc@wacom.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 8cde81001626c4c60b26ef2eb5fc522885ed9fd0 |
|
27-Nov-2010 |
Henrik Rydberg <rydberg@euromail.se> |
input: mt: Collect slots initialization code
The MT slots devices all follow the same initialization pattern
of creating slots and hinting about buffer size. Let drivers call
an initialization function instead, and make sure it can be called
repeatedly without side effects.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|
| 47c78e891323513e9909729b44033e2c6649e2b7 |
|
27-Nov-2010 |
Henrik Rydberg <rydberg@euromail.se> |
input: mt: Break out slots handling
In preparation for common code to handle a larger set of MT slots
devices, move the slots handling over to a separate file.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
|