Another Lifebook machine that needs the same quirk as other similar
models to make the driver working.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=883192
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This reverts commit e51e3849: we
actually do want the device to work in extended W mode, as this is the
mode that allows us receiving multiple contact information.

Cc: stable@vger.kernel.org

Signed-off-by: NDuson Lin <dusonlin@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

In order to support more projects in the future, we expand the
maximum product_id value form 0xFF to 0xFFFF.

Signed-off by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The 0x03 is valid 3000 serial ic type too.
Signed-off-by: NDuson Lin <dusonlin@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The Asus X456UA has an ELAN1000 touchpad with IAP version 0xe.  This is
unknown to elan_get_fwinfo() so driver probe fails and I am left with an
unusable touchpad.

However, the fwinfo is not required for general driver usage, it is only
needed if the user decides to upload new firmware.

Adjust the driver so that we do not abort probe when we encounter
unexpected IAP version, but rather warn user that firmware update feature
of the driver will not work.
Signed-off-by: NDaniel Drake <drake@endlessm.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This ACPI ID present in the DSDT of the ASUS E202SA laptop.
Signed-off-by: NJoão Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

When driver is in IAP mode ic_type query may return 0xff. However
iap_version will always be valid, so let's use it to determine parameters
of the firmware that the controller is supposed to accept.
Signed-off-by: NDuson Lin <dusonlin@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Search for "vaildpage_count" and replace with "validpage_count".
Signed-off-by: NBenson Leung <bleung@chromium.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

There are trackpoint devices that fail to respond to the PS2 command
PSMOUSE_CMD_GETID if immediately queried after the parent device is
deactivated. Add a small delay for the hardware to get in a sane state
before sending any PS2 commands.

One example of such a system is:
Lenovo ThinkPad X120e, model 30515QG
synaptics: Touchpad model: 1, fw: 8.0, id: 0x1e2b1, caps: 0xd001a3/0x940300/0x121c00, board id: 1811, fw id: 797391
Signed-off-by: NStefan Assmann <sassmann@kpanic.de>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Bit 2 of the mode byte has dual meaning: it can disable reporting of
gestures when touchpad works in Relative mode or normal Absolute mode,
or it can enable so called Extended W-Mode when touchpad uses enhanced
Absolute mode (W-mode). The extended W-Mode confuses our driver and
causes missing button presses on some Thinkpads (x250, T450s), so let's
make sure we do not enable it.

Also, according to the spec W mode "... bit is defined only in Absolute
mode on pads whose capExtended capability bit is set. In Relative mode and
in TouchPads without this capability, the bit is reserved and should be
left at 0.", so let's make sure we respect this requirement as well.
Reported-by: NNick Bowler <nbowler@draconx.ca>
Suggested-by: NGabor Balla <gaborwho@gmail.com>
Tested-by: NGabor Balla <gaborwho@gmail.com>
Tested-by: NNick Bowler <nbowler@draconx.ca>
Cc: stable@vger.kernel.org
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Enable ELAN0100 touchpad driver, found on a Asus X205TA laptop, to
gai 2,3 fingers tap and 2 fingers scroll.
Signed-off-by: NMichele Curti <michele.curti@gmail.com>
Reviewed-by: NDuson Lin <dusonlin@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

I have a static checker that complains when we check for an upper bound
but don't have a corresponding check for a lower bound.  With this code,
the upper bound check seems not really required, so it is not a bug to
leave the lower bound check out as well.  But let's silence the warning
by making these variables unsigned.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

It takes a bit of time to go through controller power up sequence and
initialization. To not stall the overall boot progress let's probe the
controller asynchronously, given that userspace is usually prepared for
hot-plugging of input devices and thus does not rely on particular
ordering.
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

It is no need to check the packet[0] for sanity check when doing
elantech_packet_check_v4() function for fw_version = 0x470f01 touchpad.

Signed-off by: Duson Lin <dusonlin@emc.com.tw>
Reviewed-by: NUlrik De Bie <ulrik.debie-os@e2big.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is
not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer
functionality only, can still be compiled if GPIOLIB is not enabled.

Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where
appropriate.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

It turns out that only Dell laptops have the separate button bits for
v2 dualpoint sticks and that commit 92bac83d ("Input: alps - non
interleaved V2 dualpoint has separate stick button bits") causes
regressions on Toshiba laptops.

This commit adds a check for Dell laptops to the code for handling these
extra button bits, fixing this regression.

This patch has been tested on a Dell Latitude D620 to make sure that it
does not reintroduce the original problem.
Reported-and-tested-by: NDouglas Christman <douglaschristman@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Avoid the driver generate warning message when the cyapa driver working
with the old Gen5 trackpad device which does not support the proximity
function.  Those old Gen5 trackpad device all have the platform version
less than 2.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add device tree support for  Cypress trackpad devices.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

We need to power up the chip before we can initialize it.

On systems that delegate task of powering up regulators to firmware we
assume that we'll be simply given a dummy regulator.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add support for the MacBookPro12,1 model. This patch needs to be
applied together with the accompanied HID patch, as usual.
Tested-by: NJohn Horan <knasher@gmail.com>
Tested-by: NJochen Radmacher <jradmacher@gmx.de>
Tested-by: NYang Hongyang <burnef@gmail.com>
Tested-by: NYen-Chin, Lee <coldnew.tw@gmail.com>
Tested-by: NGeorge Hilios <ghilios@gmail.com>
Tested-by: NJanez Urevc <janez@janezurevc.name>
Signed-off-by: NHenrik Rydberg <rydberg@bitmath.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

With the advent of the Macbook Pro 12, we see a new generation of
trackpads, capable of force sensoring and haptic feedback.

This patch prepares for the new device by adding configuration data
for the code paths that would otherwise look different.
Tested-by: NJohn Horan <knasher@gmail.com>
Tested-by: NJochen Radmacher <jradmacher@gmx.de>
Tested-by: NYang Hongyang <burnef@gmail.com>
Tested-by: NYen-Chin, Lee <coldnew.tw@gmail.com>
Tested-by: NGeorge Hilios <ghilios@gmail.com>
Tested-by: NJanez Urevc <janez@janezurevc.name>
Signed-off-by: NHenrik Rydberg <rydberg@bitmath.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Make extended capabilities obtained through $10 query also available in
touchpad identification.
Signed-off-by: NJiri Kosina <jkosina@suse.com>
Reviewed-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Add CYTP0002 to the list of ACPI HIDs recognized by the driver.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Fix the the runtime suspend power management not working issue when system
starts up and before user touches the trackpad device.
TEST=test on Chromebook.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Gen5 and Gen6 trackpad devices are able to detect and report object
proximity data/events, add this function support in the cyapa driver
through the ABS_DISTANCE event.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

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: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Change 'gen5' to 'pip' for all macros, variables and functions that are
shared between gen5 and gen6 modules to make naming more clear and
readable.

Also fix a few spelling errors.
Signed-off-by: NDudley Du <dudl@cypress.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

ELAN0600 seems to work just fine in mouse emulation mode through i2c-hid,
but to have full raw touch support we need to register it in elan_i2c.ko
Reported-and-tested-by: NAlessio Treglia <alessio@debian.org>
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: NJiri Kosina <jkosina@suse.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

i2c_driver does not need to set an owner because i2c_register_driver()
will set it.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

All Elantech touchpads pre-v4 with dynamic resolution queries have a fixed
resolution of 800dpi -> 31.49 units/mm. Set this statically, so userspace
does not have to guess.
Signed-off-by: NPeter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NDavid Herrmann <dh.herrmann@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This reverts commit 63c4fda3 as it
causes issues with detecting 3-finger taps.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100481
Cc: stable@vger.kernel.org
Acked-by: NBenjamin Tissoires <benjamin.tissoires@redhat.com>

The firmware only reports hover condition while the very first contact is
approaching the surface; the hover is not reported for the subsequent
contacts. Therefore we should not be using ABS_MT_DISTANCE to report hover
but rather its single-touch counterpart ABS_DISTANCE.
Signed-off-by: NDuson Lin <dusonlin@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Previously the elan_i2c touchpad driver would simply request the firmware
"/lib/firmware/elan_i2c.bin", which does not work well if there are
multiple such devices in the system.

Let's append the "product ID" (by using the same function as the sysfs
interface for consistency) to the filename.  This results in filenames of
the form "/lib/firmware/elan_i2c_72.0.bin", allowing you to support
multiple elan_i2c touchpads on the same device by simply naming each
device's FW with its corresponding product ID.  This way when you trigger a
fw update the driver will load the correct binary.
Signed-off-by: NCharlie Mooney <charliemooney@chromium.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

In order to support multiple IC types for i2c/smbus protocol, add get ic
type command and use this data when checking firmware page count and
signature address.
Signed-off-by: NDuson Lin <dusonlin@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1223051#c2

Cc: stable@vger.kernel.org
Tested-by: tommy.gagnes@gmail.com
Signed-off-by: NPeter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

On some v7 devices (e.g. Lenovo-E550) the deltas reported are typically
only in the 0-1 range dividing this by 2 results in a range of 0-0.

And even for v7 devices where this does not lead to making the trackstick
entirely unusable, it makes it twice as slow as before we added v7 support
and were using the ps/2 mouse emulation of the dual point setup.

If some kind of generic slowdown is actually necessary for some devices,
then that belongs in userspace, not in the kernel.

Cc: stable@vger.kernel.org
Reported-and-tested-by: NRico Moorman <rico.moorman@gmail.com>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NBenjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

This adds new icbody type to the list recognized by Elantech PS/2 driver.

Cc: stable@vger.kernel.org
Signed-off-by: NSam Hung <sam.hung@emc.com.tw>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Focaltech touchpads report finger width in packet[5] of absolute packet.
Range for width in raw format is 0x10 - 0x70. Second half-byte is always 0.
0xff is reported, when a large contact area is detected.
This can be handled in userspace.
Signed-off-by: NDmitry Tunin <hanipouspilot@gmail.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Make the check to skip the rate check more lax, so that it applies
to all hw_version 4 models.

This fixes the touchpad not being detected properly on Asus PU551LA
laptops.

Cc: stable@vger.kernel.org
Reported-and-tested-by: NDavid Zafra Gómez <dezeta@klo.es>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>