linux.git/drivers/input/mouse/psmouse-base.c, branch v3.18-rc2

Merge branch 'next' into for-linus

2014-10-03T18:24:46+00:00

Prepare first round of input updates for 3.18.

Input: psmouse - add support for detecting FocalTech PS/2 touchpads

2014-09-15T21:30:46+00:00

The Asus X450 and X550 laptops use a PS/2 touchpad from a new
manufacturer called FocalTech:

https://bugzilla.kernel.org/show_bug.cgi?id=77391
https://bugzilla.redhat.com/show_bug.cgi?id=1110011

The protocol for these devices is not known at this time, but even
without knowing the protocol they need some special handling. They get
upset by some of our other PS/2 device probing, and once upset generate
random mouse events making things unusable even with an external mouse.

This patch adds detection of these devices based on their pnp ids, and
when they are detected, treats them as a bare ps/2 mouse. Doing things
this way they at least work in their ps/2 mouse emulation mode.

Signed-off-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov

Input: psmouse - add psmouse_matches_pnp_id helper function

2014-09-13T00:30:44+00:00

The matches_pnp_id function from the synaptics driver is useful for other
drivers too. Make it a generic psmouse helper function.

Signed-off-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov

Input: add missing POINTER / DIRECT properties to a bunch of drivers

2014-09-08T21:58:12+00:00

I've not done a full audit of all mouse drivers, I noticed these ones were
missing the POINTER property while working on the POINTING_STICK property.

Signed-off-by: Hans de Goede 
Signed-off-by: Dmitry Torokhov

Input: add support for Cypress PS/2 Trackpads

2013-01-17T08:27:34+00:00

This driver, submitted on behalf of Cypress Semiconductor Corporation and
additional contributors, provides support for the Cypress PS/2 Trackpad.

Original code contributed by Dudley Du (Cypress Semiconductor Corporation),
modified by Kamal Mostafa and Kyle Fazzari.

BugLink: http://launchpad.net/bugs/978807

Signed-off-by: Dudley Du 
Signed-off-by: Kamal Mostafa 
Signed-off-by: Kyle Fazzari 
Signed-off-by: Mario Limonciello 
Signed-off-by: Tim Gardner 
Acked-by: Herton Krzesinski 
Reviewed-by: Henrik Rydberg 
Reviewed-by: Dudley Du 
Signed-off-by: Dmitry Torokhov

Merge commit 'v3.3-rc6' into next

2012-03-09T18:55:17+00:00

Input: psmouse - allow drivers to use psmouse_{de,}activate

2012-02-24T08:55:28+00:00

Other drivers duplicate this code; no sense in having it be private
to psmouse-base.

Signed-off-by: Andres Salomon 
Signed-off-by: Dmitry Torokhov

module_param: make bool parameters really bool (drivers & misc)

2012-01-12T23:02:20+00:00

module_param(bool) used to counter-intuitively take an int.  In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

It's time to remove the int/unsigned int option.  For this version
it'll simply give a warning, but it'll break next kernel version.

Acked-by: Mauro Carvalho Chehab 
Signed-off-by: Rusty Russell

Input: psmouse - make sure we do not use stale methods

2011-12-30T23:26:36+00:00

Several protocol initialization routines can fail after they set up
psmouse methods, such as reconnect and disconnect. This may lead to
these stale methods used with different protocol that they were
intended to be used for and may cause unpredictavle behavior and/or
crashes.

Make sure we start with a clean slate before executing each and every
protocol detection and/or initialization routine.

Reported-by: Paul Fox 
Acked-by: Tai-hwa Liang 
Acked-by: Paul Fox 
Signed-off-by: Dmitry Torokhov

Input: synaptics - add support for Relative mode

2011-11-10T05:23:31+00:00

Currently, the synaptics driver puts the device into Absolute mode.
As explained in the synaptics documentation section 3.2, in this mode,
the device sends a continuous stream of packets at the maximum rate
to the host when the user's fingers are near or on the pad or
pressing buttons, and continues streaming for 1 second afterwards.
These packets are even sent when there is no new information to report,
even when they are duplicates of the previous packet.

For embedded systems this is a bit much - it results in a huge
and uninterrupted stream of interrupts at high rate.

This patch adds support for Relative mode, which can be selected as
a new psmouse protocol. In this mode, the device does not send duplicate
packets and acts like a standard PS/2 mouse. However, synaptics-specific
functionality is still available, such as the ability to set the packet
rate, and rather than disabling gestures and taps at the hardware level
unconditionally, a 'synaptics_disable_gesture' sysfs attribute has
been added to allow control of this functionality.

This solves a long standing OLPC issue: synaptics hardware enables
tap to click by default (even in the default relative mode), but we
have found this to be inappropriate for young children and first
time computer users. Enabling the synaptics driver disables tap-to-click,
but we have previously been unable to use this because it also enables
Absolute mode, which is too "spammy" for our desires and actually
overloads our EC with its continuous stream of packets. Now we can enable
the synaptics driver, disabling tap to click while retaining the less
noisy Relative mode.

Signed-off-by: Daniel Drake 
Signed-off-by: Dmitry Torokhov