linux-toradex.git/drivers/input/mouse/synaptics.c, branch T30_LinuxImageV2.0Beta2_20130626

Input: synaptics - fix touchpad not working after S2R on Vostro V13

2012-01-11T17:28:04+00:00

commit 8521478f67e95ada4e87970c7b41e504c724b2cf upstream.

Synaptics touchpads on several Dell laptops, particularly Vostro V13
systems, may not respond properly to PS/2 commands and queries immediately
after resuming from suspend to RAM. This leads to unresponsive touchpad
after suspend/resume cycle.

Adding a 1-second delay after resetting the device allows touchpad to
finish initializing (calibrating?) and start reacting properly.

Reported-by: Daniel Manrique 
Tested-by: Daniel Manrique 
Signed-off-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman 

Change-Id: I8246905d452b12e1ce535705c746c3ff66660e09
Reviewed-on: http://git-master/r/74172
Reviewed-by: Varun Wadekar 
Tested-by: Varun Wadekar

Input: synaptics - set minimum coordinates as reported by firmware

2011-07-09T19:33:35+00:00

Newer Synaptics firmware allows to query minimum coordinates reported by
the device, let's use this data.

Acked-by: Chase Douglas 
Acked-by: Henrik Rydberg 
Signed-off-by: Dmitry Torokhov

Input: synaptics - process button bits in AGM packets

2011-07-07T06:01:17+00:00

AGM packets contain valid button bits, too.
This patch refactors packet processing to parse button bits in AGM packets.
However, they aren't actually used or reported.

The point is to more completely process AGM packets,
and prepare for future patches that may actually use AGM packet button bits.

Signed-off-by: Daniel Kurtz 
Acked-by: Chase Douglas 
Signed-off-by: Dmitry Torokhov

Input: synaptics - rename set_slot to be more descriptive

2011-07-07T06:01:13+00:00

Signed-off-by: Daniel Kurtz 
Acked-by: Chase Douglas 
Signed-off-by: Dmitry Torokhov

Input: synaptics - fuzz position for touchpad with reduced filtering

2011-07-07T06:01:09+00:00

Synaptics touchpads indicate via a capability bit when they perform reduced
filtering on position data. In such a case, use a non-zero fuzz value.
Fuzz = 8 was chosen empirically by observing the raw position data
reported by a clickpad indicating it had reduced filtering.

Signed-off-by: Daniel Kurtz 
Acked-by: Chase Douglas 
Signed-off-by: Dmitry Torokhov

Input: synaptics - set resolution for MT_POSITION_X/Y axes

2011-07-07T06:01:00+00:00

Set resolution for MT_POSITION_X and MT_POSITION_Y to match ABS_X and
ABS_Y, respectively.

Signed-off-by: Daniel Kurtz 
Acked-by: Chase Douglas 
Signed-off-by: Dmitry Torokhov

Input: synaptics - fix crash in synaptics_module_init()

2011-03-31T07:04:52+00:00

'struct dmi_system_id' arrays must always have a terminator to keep
dmi_check_system() from looking at data (and possibly crashing) it
isn't supposed to look at.

The issue went unnoticed until ef8313bb1a22e7d2125d9d758aa8a81f1de91d81,
but was introduced about a year earlier with
7705d548cbe33f18ea7713b9a07aa11047aaeca4 (which also similarly changed
lifebook.c, but the problem there got eliminated shortly afterwards).

The first hunk therefore is a stable candidate back to 2.6.33, while
the full change is needed only on 2.6.38.

Signed-off-by: Jan Beulich 
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov

Input: synaptics - retry failed resets when reconnecting

2011-01-29T06:32:07+00:00

On some machines, like Dell Studio XPS 16 (1640), touchpad fails to
respond to the standard query after first reset but may start
responding later, so let's repeat reset sequence several (3) times.

Signed-off-by: Alexandre Peixoto Ferreira 
Signed-off-by: Dmitry Torokhov

Input: synaptics - fix reconnect logic on MT devices

2011-01-29T06:32:03+00:00

synaptics_set_advanced_gesture_mode() affect capabilities bits we should
perform comparison after calling this function, otherwise they will never
match and we will be forced to perform full reconnect.

Signed-off-by: Alexandre Peixoto Ferreira 
Signed-off-by: Dmitry Torokhov

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt into next

2010-12-28T01:33:20+00:00