Revert "Input: Add driver for PixArt PS/2 touchpad"

This reverts commit 740ff03d7238214a318cdcfd96dec51832b053d2 because
current PixArt detection is too greedy and claims devices that are
not PixArt

Revert "Input: Add driver for PixArt PS/2 touchpad"

This reverts commit 740ff03d7238214a318cdcfd96dec51832b053d2 because
current PixArt detection is too greedy and claims devices that are
not PixArt.

Reported-by: Benjamin Tissoires <[email protected]>
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2314756
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: Add driver for PixArt PS/2 touchpad

This patch introduces a driver for the PixArt PS/2 touchpad, which
supports both clickpad and touchpad types.

At the same time, we extended the single dat

Input: Add driver for PixArt PS/2 touchpad

This patch introduces a driver for the PixArt PS/2 touchpad, which
supports both clickpad and touchpad types.

At the same time, we extended the single data packet length to 16,
because according to the current PixArt hardware and FW design, we need
11 bytes/15 bytes to represent the complete three-finger/four-finger data.

Co-developed-by: Jon Xie <[email protected]>
Signed-off-by: Jon Xie <[email protected]>
Co-developed-by: Jay Lee <[email protected]>
Signed-off-by: Jay Lee <[email protected]>
Signed-off-by: Binbin Zhou <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: navpoint - remove driver

This driver does not use the SPI core as it should, instead tampering
with the SSP registers manually. Refactoring the driver is almost
certainly not worth it as the

Input: navpoint - remove driver

This driver does not use the SPI core as it should, instead tampering
with the SSP registers manually. Refactoring the driver is almost
certainly not worth it as the hardware seems to have been designed for
and used only in the HP iPAQ hx4700 removed more than a year ago in
d6df7df7ae5a ("ARM: pxa: remove unused board files"), so let's remove
it.

Signed-off-by: Duje Mihanović <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>

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input: remove pxa930_trkball driver

The pxa930 SoC support is getting removed, and no upstream
board ever provided the trkball device that this driver
relies on.

Cc: Dmitry Torokhov <dmitry.torokho

input: remove pxa930_trkball driver

The pxa930 SoC support is getting removed, and no upstream
board ever provided the trkball device that this driver
relies on.

Cc: Dmitry Torokhov <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: [email protected]
Acked-by: Robert Jarzmik <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

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License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.

For non */uapi/* files that summary was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139

and resulted in the first patch in this series.

If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930

and resulted in the second patch in this series.

- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:

SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1

and that resulted in the third patch in this series.

- when the two scanners agreed on the detected license(s), that became
the concluded license(s).

- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.

- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).

- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.

- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct

This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Philippe Ombredanne <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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Input: psmouse - add support for SMBus companions

This provides glue between PS/2 devices that enumerate the RMI4 devices
and Elan touchpads to the RMI4 (or Elan) SMBus driver.

The SMBus devices ke

Input: psmouse - add support for SMBus companions

This provides glue between PS/2 devices that enumerate the RMI4 devices
and Elan touchpads to the RMI4 (or Elan) SMBus driver.

The SMBus devices keep their PS/2 connection alive. If the initialization
process goes too far (psmouse_activate called), the device disconnects
from the I2C bus and stays on the PS/2 bus, that is why we explicitly
disable PS/2 device reporting (by calling psmouse_deactivate) before
trying to register SMBus companion device.

The HID over I2C devices are enumerated through the ACPI DSDT, and
their PS/2 device also exports the InterTouch bit in the extended
capability 0x0C. However, the firmware keeps its I2C connection open
even after going further in the PS/2 initialization. We don't need
to take extra precautions with those device, especially because they
block their PS/2 communication when HID over I2C is used.

Signed-off-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: byd - add BYD PS/2 touchpad driver

Driver for the BYD BTP10463 touchpad, found in PC Specialist `Lafite'
laptops. This patch sends the magic command sequence which causes the
touchpad to stre

Input: byd - add BYD PS/2 touchpad driver

Driver for the BYD BTP10463 touchpad, found in PC Specialist `Lafite'
laptops. This patch sends the magic command sequence which causes the
touchpad to stream intellimouse-style packets.

Gestures are detected inside the touchpad, and exposed as special
values in the Z component of each packet - absolute coordinates are
not supported, even in the Windows driver. At present, this supports
two-finger vertical and horizontal scrolling, and provides the
framework to expose the other gestures it can recognize.

Signed-off-by: Chris Diamand <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: cyapa - add gen6 device module support

Based on the cyapa core, add support for basic functionality of the gen6
trackpad devices. The driver can automatically determine what protocol
(gen3, g

Input: cyapa - add gen6 device module support

Based on the cyapa core, add support for basic functionality of the gen6
trackpad devices. The driver can automatically determine what protocol
(gen3, gen5, or gen6) should be used with the attached trackpad device.

Signed-off-by: Dudley Du <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add vmmouse driver

VMMouse enables low-latency mouse-cursor-movements for VMWare and QEMU
guests. By removing the guest cursor and using the host as a guest cursor
the cursor movement appear

Input: add vmmouse driver

VMMouse enables low-latency mouse-cursor-movements for VMWare and QEMU
guests. By removing the guest cursor and using the host as a guest cursor
the cursor movement appears instant although in reality there is some lag.
To be able to do this, the host's view of the cursor position must exactly
match the guest's view and an absolute pointer device is needed. Enter the
VMMouse. While the VMMouse driver has historically been an Xorg user-space
driver, implementing it as a kernel imput driver enables rootless Xorg and
new compositing display servers for VMware guests.

Signed-off-by: Thomas Hellstrom <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: cyapa - add gen5 trackpad device basic functions support

This change adds support for Gen5 Cypress trackpads. The driver detects
generation of the device at probe time and automatically selec

Input: cyapa - add gen5 trackpad device basic functions support

This change adds support for Gen5 Cypress trackpads. The driver detects
generation of the device at probe time and automatically selects
appropriate protocol.

Signed-off-by: Dudley Du <[email protected]>
Tested-by: Jeremiah Mahler <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: cyapa - re-design driver to support multi-trackpad in one driver

In order to support multiple different chipsets and communication protocols
trackpad devices in one cyapa driver, the new cyap

Input: cyapa - re-design driver to support multi-trackpad in one driver

In order to support multiple different chipsets and communication protocols
trackpad devices in one cyapa driver, the new cyapa driver is re-designed
with one cyapa driver core and multiple device specific functions component.
The cyapa driver core is contained in this patch, it supplies basic functions
that working with kernel and input subsystem, and also supplies the interfaces
that the specific devices' component can connect and work together with as
one driver.

Signed-off-by: Dudley Du <[email protected]>
Tested-by: Jeremiah Mahler <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add driver for Elan I2C/SMbus touchpad

This driver supports Elan I2C/SMbus touchpads found in some laptops and
also in many Chromebooks.

Signed-off-by: Duson Lin <[email protected]>
Review

Input: add driver for Elan I2C/SMbus touchpad

This driver supports Elan I2C/SMbus touchpads found in some laptops and
also in many Chromebooks.

Signed-off-by: Duson Lin <[email protected]>
Reviewed-by: Benson Leung <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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

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

https://bugzilla.kernel.org/show_bug

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

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 <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add driver for Cypress APA I2C Trackpad

This patch introduces a driver for Cypress All Points Addressable
I2C Trackpad, including the ones in 2012 Samsung Chromebooks.

This device is compati

Input: add driver for Cypress APA I2C Trackpad

This patch introduces a driver for Cypress All Points Addressable
I2C Trackpad, including the ones in 2012 Samsung Chromebooks.

This device is compatible with MT protocol type B, providing identifiable
contacts.

Signed-off-by: Dudley Du <[email protected]>
Signed-off-by: Daniel Kurtz <[email protected]>
Signed-off-by: Benson Leung <[email protected]>
Reviewed-by: Henrik Rydberg <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add support for Cypress PS/2 Trackpads

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

Orig

Input: add support for Cypress PS/2 Trackpads

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 <[email protected]>
Signed-off-by: Kamal Mostafa <[email protected]>
Signed-off-by: Kyle Fazzari <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Tim Gardner <[email protected]>
Acked-by: Herton Krzesinski <[email protected]>
Reviewed-by: Henrik Rydberg <[email protected]>
Reviewed-by: Dudley Du <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: Add Synaptics NavPoint (PXA27x SSP/SPI) driver

This driver adds support for the Synaptics NavPoint touchpad connected
to a PXA27x SSP port in SPI slave mode. The device emulates a mouse;
a ta

Input: Add Synaptics NavPoint (PXA27x SSP/SPI) driver

This driver adds support for the Synaptics NavPoint touchpad connected
to a PXA27x SSP port in SPI slave mode. The device emulates a mouse;
a tap or tap-and-a-half drag gesture emulates the left mouse button.
For example, use the xf86-input-evdev driver for an X pointing device.

Signed-off-by: Paul Parsons <[email protected]>
Tested-by: Philipp Zabel <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add Synaptics USB device driver

This patch adds a driver for Synaptics USB touchpad or pointing stick
devices. These USB devices emulate an USB mouse by default, so one can
also use the usbhi

Input: add Synaptics USB device driver

This patch adds a driver for Synaptics USB touchpad or pointing stick
devices. These USB devices emulate an USB mouse by default, so one can
also use the usbhid driver. However, in combination with special user
space drivers this kernel driver allows one to customize the behaviour
of the device.

An extended version of this driver with support for the cPad background
display can be found at
<http://jan-steinhoff.de/linux/synaptics-usb.html>.

Signed-off-by: Jan Steinhoff <[email protected]>
Acked-by: Jiri Kosina <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add new driver for Sentelic Finger Sensing Pad

This is the driver for Sentelic Finger Sensing Pad which can be found
on MSI WIND Netbook.

Signed-off-by: Tai-hwa Liang <[email protected]>
S

Input: add new driver for Sentelic Finger Sensing Pad

This is the driver for Sentelic Finger Sensing Pad which can be found
on MSI WIND Netbook.

Signed-off-by: Tai-hwa Liang <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: combine hil_kbd and hil_ptr drivers

hil_kbd and hil_ptr look like twins so it makes sense to combine them
into a single driver.

[[email protected]: add MODULE_ALIAS() entry for mouse]
Tested-by:

Input: combine hil_kbd and hil_ptr drivers

hil_kbd and hil_ptr look like twins so it makes sense to combine them
into a single driver.

[[email protected]: add MODULE_ALIAS() entry for mouse]
Tested-by: Helge Deller <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add driver for Synaptics I2C touchpad

This driver supports Synaptics I2C touchpad controller on eXeda
mobile device. Unfortunaltely it only works in relative mode and
thus is not comaptible w

Input: add driver for Synaptics I2C touchpad

This driver supports Synaptics I2C touchpad controller on eXeda
mobile device. Unfortunaltely it only works in relative mode and
thus is not comaptible with Xorg Synaptics driver.

Signed-off-by: Igor Grinberg <[email protected]>
Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add support for the Maple mouse on the SEGA Dreamcast

Signed-off-by: Adrian McMenamin <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
Signed-off-by: Dmitry Torokhov <d

Input: add support for the Maple mouse on the SEGA Dreamcast

Signed-off-by: Adrian McMenamin <[email protected]>
Acked-by: Mike Frysinger <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: add support for trackball on pxa930 and pxa935

Signed-off-by: Yong Yao <[email protected]>
Signed-off-by: Eric Miao <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

Input: psmouse - add support for Elantech touchpads

This is version 5 of the driver. Relative mode support has been
dropped (users wishing to use touchpad in relative mode can use
standard PS/2 prot

Input: psmouse - add support for Elantech touchpads

This is version 5 of the driver. Relative mode support has been
dropped (users wishing to use touchpad in relative mode can use
standard PS/2 protocol emulation done in hardware). The driver
supports both original version of Elantech protocol and the newer
one used by touchpads installed in EeePC.

Signed-off-by: Arjan Opmeer <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: psmouse - add OLPC touchpad driver

This adds support for OLPC's touchpad. It has lots of neat features,
none of which are enabled because the hardware is too buggy. Instead,
we use it like

Input: psmouse - add OLPC touchpad driver

This adds support for OLPC's touchpad. It has lots of neat features,
none of which are enabled because the hardware is too buggy. Instead,
we use it like a normal touchpad, but with a number of workarounds in
place to deal with the frequent hardware spasms. Humidity changes,
sweat, tinfoil underwear, plugging in AC, drinks, evil felines.. All
tend to cause the touchpad to freak out.

Signed-off-by: Andres Salomon <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: bcm5974 - add driver for Macbook Air and Pro Penryn touchpads

This driver adds support for the multitouch trackpad on the new
Apple Macbook Air and Macbook Pro Penryn laptops. It replaces the

Input: bcm5974 - add driver for Macbook Air and Pro Penryn touchpads

This driver adds support for the multitouch trackpad on the new
Apple Macbook Air and Macbook Pro Penryn laptops. It replaces the
appletouch driver on those computers, and integrates well with the
synaptics driver of the Xorg system.

[[email protected]: various cleanups]
Signed-off-by: Henrik Rydberg <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>

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