Commit Graph

254 Commits

Author SHA1 Message Date
Éric Piel
276c429b5d Input: elantech - discard the first 2 positions on some firmwares
commit 7f29f17b57 upstream.

According to the Dell/Ubuntu driver, what was previously observed as
"jumpy cursor" corresponds to the hardware sending incorrect data for
the first two reports of a one touch finger. So let's use the same
workaround as in the other driver. Also, detect another firmware
version with the same behaviour, as in the other driver.

Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
[bwh: Adjust for 2.6.32]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:08 -07:00
Dmitry Torokhov
1747aac65b Input: elantech - relax signature checks
commit a083632eaf upstream.

Apparently there are Elantech touchpads that report non-zero in the 2nd byte
of their signature. Adjust the detection routine so that if 2nd byte is
zero and 3rd byte contains value that is not a valid report rate, we still
assume that signature is valid.

Tested-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
[bwh: Adjust context for 2.6.32]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:07 -07:00
Dmitry Torokhov
8bac623e5b Input: elantech - use all 3 bytes when checking version
commit 504e8beed1 upstream.

Apparently all 3 bytes returned by ETP_FW_VERSION_QUERY are significant
and should be taken into account when matching hardware version/features.

Tested-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:06 -07:00
Florian Ragwitz
6883f58088 Input: elantech - ignore high bits in the position coordinates
commit e938fbfd4a upstream.

In older versions of the elantech hardware/firmware those bits always
were unset, so it didn't actually matter, but newer versions seem to
use those high bits for something else, screwing up the coordinates
we report to the input layer for those devices.

Signed-off-by: Florian Ragwitz <rafl@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:06 -07:00
Florian Ragwitz
c96981dd21 Input: elantech - allow forcing Elantech protocol
commit f81bc788ff upstream.

Apparently hardware vendors now ship elantech touchpads with different version
magic. This options allows for them to be tested easier with the current driver
in order to add their magic to the whitelist later.

Signed-off-by: Florian Ragwitz <rafl@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:06 -07:00
Florian Ragwitz
971c6dfbbf Input: elantech - fix firmware version check
commit 225c61aad3 upstream.

The check determining whether device should use 4- or 6-byte packets
was trying to compare firmware with 2.48, but was failing on majors
greater than 2. The new check ensures that versions like 4.1 are
checked properly.

Signed-off-by: Florian Ragwitz <rafl@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:05 -07:00
Dmitry Torokhov
40ebeb0d12 Input: elantech - do not advertise relative events
commit c7a1f3ccfc upstream.

Elantech touchpads work in absolute mode and do not generate relative
events so they should not be advertising them.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:05 -07:00
Takashi Iwai
450aae0824 Input: Add support of Synaptics Clickpad device
commit 5f57d67da8 upstream.

The new type of touchpads can be detected via a new query command
0x0c. The clickpad flags are in cap[0]:4 and cap[1]:0 bits.

When the device is detected, the driver now reports only the left
button as the supported buttons so that X11 driver can detect that
the device is Clickpad. A Clickpad device gives the button events
only as the middle button. The kernel driver morphs to the left
button. The real handling of Clickpad is done rather in X driver
side.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-09 15:55:04 -07:00
Edgar (gimli) Hucek
1e81d74b8b input: bcm5974: Add support for MacBookAir3
commit 6021afcf19 upstream.

This patch adds support for the MacBookAir3,1 and MacBookAir3,2
models.

[rydberg@euromail.se: touchpad range calibration]
Signed-off-by: Edgar (gimli) Hucek <gimli@dark-green.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-02-17 15:36:59 -08:00
Dmitry Torokhov
04a08885c3 Input: psmouse - reset all types of mice before reconnecting
commit ef110b24e2 upstream.

Synaptics hardware requires resetting device after suspend to ram
in order for the device to be operational. The reset lives in
synaptics-specific reconnect handler, but it is not being invoked
if synaptics support is disabled and the device is handled as a
standard PS/2 device (bare or IntelliMouse protocol).

Let's add reset into generic reconnect handler as well.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-07-05 11:11:16 -07:00
Thomas Bächler
e2d83be64e Input: alps - add support for the touchpad on Toshiba Tecra A11-11L
commit eb8bff85c5 upstream.

Signed-off-by: Thomas Bächler <thomas@archlinux.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-01 15:58:06 -07:00
Sebastian Kapfer
04daa51ee4 Input: ALPS - add interleaved protocol support (Dell E6x00 series)
commit 1d9f26262a upstream

Properly handle version of the protocol where standard PS/2 packets
from trackpoint are stuffed into middle (byte 3-6) of the standard
ALPS packets when both the touchpad and trackpoint are used together.

The patch is based on work done by Matthew Chapman and additional
research done by David Kubicek and Erik Osterholm:

	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/296610

Many thanks to David Kubicek for his efforts in researching fine points
of this new version of the protocol, especially interaction between pad
and stick in these models.

Cc: Andy Isaacson <adi@hexapodia.org>
Signed-off-by: Sebastian Kapfer <sebastian_kapfer@gmx.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-28 15:00:43 -08:00
Tai-hwa Liang
2196ca4e67 Input: pmouse - move Sentelic probe down the list
commit 4a18b3ab6e upstream.

Sentelic probes confuse IBM trackpoints so they stop responding to
TP_READ_ID command. See:

	http://bugzilla.kernel.org/show_bug.cgi?id=14970

Let's move FSP detection lower so it is probed after trackpoint and
others, just before we strat probing for Intellimouse Explorer.

Signed-off-by: Tai-hwa Liang <avatar@sentelic.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-22 15:18:28 -08:00
Abner Holsinger
b1e69aae77 Input: lifebook - fix settings for CF-72
Panasonic CF-72 uses 6-byte protocol and does not need to be tied
to a particular port.

Signed-off-by: Abner Holsinger <9zabner@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-11-16 22:27:12 -08:00
Jiri Kosina
0698989d77 Input: psmouse - fix breakage introduced by b7802c5c1e
Commit b7802c5c1e ("Input: psmouse - use boolean type") caused the
synaptics_hardware variable to be completely useless, as it is
constantly set to 'true' throughout the whole psmouse_extensions().
This was caused by the following hunk in the commit in question

	-       int synaptics_hardware = 0;
	+       bool synaptics_hardware = true;

which is wrong and causes driver to issue extra reset when falling
back to bare PS/2 protocol.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-11-16 22:26:16 -08:00
Takashi Iwai
3d4c3aa938 Input: psmouse - remove unneeded '\n' from psmouse.proto parameter
The get parameter function should return a string without a life-feed.
Otherwise you'll see additional empty line in sysfs parameters file.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-11-12 23:31:58 -08:00
Dmitry Torokhov
4f7802d032 Input: logips2pp - model 73 is actually TrackMan FX
Reported-and-tested-by: Harald Dunkel <harald.dunkel@t-online.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-10-18 00:03:54 -07:00
Dmitry Torokhov
5f5eeff4c9 Input: synaptics - add another Protege M300 to rate blacklist
Apparently some of Toshiba Protege M300 identify themselves as
"Portable PC" in DMI so we need to add that to the DMI table as
well. We need DMI data so we can automatically lower Synaptics
reporting rate from 80 to 40 pps to avoid over-taxing their
keyboard controllers.

Tested-by: Rod Davison <roddavison@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-10-12 21:36:52 -07:00
Dmitry Torokhov
30b37131aa Input: synaptics_i2c - switch to using __cancel_delayed_work()
cancel_delayed_work() may spin and therefore should not be used in
interrupt contexts.

Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-09-17 23:24:01 -07:00
Dmitry Torokhov
181d683d75 Input: libps2 - additional locking for i8042 ports
The serio ports on i8042 are not completely isolated; while we provide
enough locking to ensure proper serialization when accessing control
and data registers AUX and KBD ports can still have an effect on each
other on PS/2 protocol level. The most prominent effect is that
issuing a command for the device connected to one port may cause
abort of the command currently executing by the device connected to
another port.

Since i8042 nor serio subsystem are not aware of the details of the
PS/2 protocol (length of the commands and their replies and so on) the
locking should be done on libps2 level by adding special handling when
we see that we are dealing with serio port on i8042.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-09-17 23:23:45 -07:00
Henrik Rydberg
9de48cc300 Input: bcm5974 - silence uninitialized variables warnings
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-09-13 09:13:38 -07:00
Dmitry Torokhov
b7802c5c1e Input: psmouse - use boolean type
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-09-10 22:11:38 -07:00
Tai-hwa Liang
fc69f4a6af 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 <avatar@sentelic.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-08-19 21:46:09 -07:00
Dmitry Torokhov
3b72094409 Input: psmouse - allow defining read-only attributes
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-08-19 21:14:20 -07:00
Dmitry Torokhov
fa71c605c2 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.

[deller@gmx.de: add MODULE_ALIAS() entry for mouse]
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-08-09 13:27:27 -07:00
Dmitry Torokhov
dd0d5443da Input: serio - don't use serio->write() directly
We have a nice wrapper for that.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-08-05 00:43:43 -07:00
Paul Fox
c46dd1eb9a Input: hgpk - forced recalibration for the OLPC touchpad
The OLPC XO laptop incorporates a combination touchpad/tablet device
which unfortunately requires frequent recalibration.  The driver will
force this automatically when various suspicious behaviors are
observed, and the user can recalibrate manually (with a special
keyboard sequence). There's currently no way, however, for an external
program to cause recalibration. We can not use the reconnect
capability which is already available in /sys because full reset of
the touchpad takes 1.1 - 1.2 secons which is too long.

This patch creates a new node in /sys which, when written with '1',
will force a touchpad recalibration; no other writes (or reads)
of this node are supported.

Signed-off-by: Paul Fox <pgf@laptop.org>
Acked-by: Andres Salomon <dilinger@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-08-05 00:34:32 -07:00
Saeed Bishara
eeafa5ef6d Input: gpio_mouse - use standard driver registration method
This patch is needed when the gpio's became available only at late
stages, for example, when using i2c gpio expander.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-07-07 22:47:14 -07:00
Mike Rapoport
eef3e4cab7 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 <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-19 22:56:45 -07:00
Tero Saarni
ec20a022aa Input: synaptics - add support for reporting x/y resolution
Synaptics uses anisotropic coordinate system.  On some wide touchpads
vertical resolution can be twice as high as horizontal which causes
unequal sensitivity on x/y directions.  Add support for reading the
resolution with EVIOCGABS ioctl.

Signed-off-by: Tero Saarni <tero.saarni@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-19 22:55:17 -07:00
Ulrich Dangel
d7ed5d883c Input: ALPS - handle touchpoints buttons correctly
When pressing any button belonging to the touchpoint, the generated
click events don't belong to the touchpoint but to the touchpad.
This patch fixes this behaviour, the events will be sent via the
correct device, so scrolling with touchpoint is possible.

Signed-off-by: Ulrich Dangel <uli@spamt.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-11 02:09:45 -07:00
Jeremy Huddleston
05e882f890 Input: appletouch - improve finger detection
The appletouch driver is prone to reporting multiple fingers when only
one is pressing.  The appletouch driver queries an array of pressure
sensors and counts local maxima in pressure to determine the number of
fingers.  It just does this on the raw values, so a data stream like:

0 100 250 300 299 300 250 100 0

actually registers as 2 fingers.

This patch updates the logic to ignore small dips in pressure that are
less than the threshold.

Signed-off-by: Jeremy Huddleston <jeremyhu@freedesktop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-03 07:37:54 -07:00
Zephaniah E. Hull
535650fd70 Input: psmouse - ESD workaround fix for OLPC XO touchpad
It appears that when the XO touchpad unit resets from ESD, it sends AA
AA instead of AA 00, the psmouse-base code handles the case of AA 00 by
triggering a serio reconnect for the port, causing a full reprobe of
the device.

Testing with OFW shows that this is likely to solve the problem, so
the attached patch simply expands the existing test to also catch AA AA.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Deepak Saxena <dsaxena@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-05-15 19:24:18 -07:00
Dmitry Torokhov
9b771ac442 Input: lifebook - don't send incomplete events
When we get a relative packet from trackpoint (when we deal with
touchscreen/trackpoint combo) we should not send events for the device
corresponding to touchscreen as it confuses evtouch driver (it looks
like it keeps previously reported absolute coordinates and the cursor
stays in the same place).

Reported-by: Marcin Drewka <laimoriel@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-05-08 18:31:49 -07:00
Dmitry Torokhov
af27a69aab Input: ALPS - Dell Latitude D630/D800 have DualPoint
Dell Latitude D630/D800 have DualPoint (touchpad plus trackpoint)
instead of a simple touchpad and a pass-through port for external
PS/2 mouse.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2009-05-08 18:31:21 -07:00
Linus Torvalds
8c0c3f7ff0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: document the multi-touch (MT) protocol
  Input: add detailed multi-touch finger data report protocol
  Input: allow certain EV_ABS events to bypass all filtering
  Input: bcm5974 - add documentation for the driver
  Input: bcm5974 - augment debug information
  Input: bcm5974 - Add support for the Macbook 5 (Unibody)
  Input: bcm5974 - add quad-finger tapping
  Input: bcm5974 - prepare for a new trackpad header type
  Input: appletouch - fix DMA to/from stack buffer
  Input: wacom - fix TabletPC touch bug
  Input: lifebook - add DMI entry for Fujitsu B-2130
  Input: ALPS - add signature for Toshiba Satellite Pro M10
  Input: elantech - make sure touchpad is really in absolute mode
  Input: elantech - provide a workaround for jumpy cursor on firmware 2.34
  Input: ucb1400 - use disable_irq_nosync() in irq handler
  Input: tsc2007 - use disable_irq_nosync() in irq handler
  Input: sa1111ps2 - use disable_irq_nosync() in irq handlers
  Input: omap-keypad - use disable_irq_nosync() in irq handler
2009-05-02 16:35:45 -07:00
Henrik Rydberg
5340219317 Input: bcm5974 - augment debug information
Add more button and finger data to the debug output.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:36:01 -07:00
Henrik Rydberg
158e928741 Input: bcm5974 - Add support for the Macbook 5 (Unibody)
This patch adds support for the new unibody Macbook, with physically
integrated button and trackpad. Since the integrated button changes
the logic for touch-and-click, a device capability bit mask is now
reported in input_id.version, which can be picked up by user space
via a EVIOCGID call.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Tested-by: David M. Lary <dmlary@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:35:52 -07:00
Henrik Rydberg
6916d97f6e Input: bcm5974 - add quad-finger tapping
The integrated button on the new unibody Macbooks presents a need to
report explicit four-finger actions. Evidently, the finger pressing
the button is also touching the trackpad, so in order to fully support
three-finger actions, the driver must be able to report four-finger
actions. This patch adds a new button, BTN_TOOL_QUADTAP, which
achieves this.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:35:12 -07:00
Henrik Rydberg
9894cf0ff5 Input: bcm5974 - prepare for a new trackpad header type
The new unibody Macbooks are equipped with an integrated button and
trackpad. The package header of the trackpad interface has changed to
also contain information about the integrated button.  This patch
performs the necessary preparations to allow for the new package
header.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:35:03 -07:00
Bob Copeland
0385c5ee3c Input: appletouch - fix DMA to/from stack buffer
CONFIG_DMA_API_DEBUG spotted an instance of appletouch using
an array on the stack as a DMA buffer for certain hardware.
Change it to use a kmalloc()ed buffer instead.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-28 09:34:13 -07:00
Adrian McMenamin
6b3480855a maple: input: fix up maple mouse driver
The maple mouse driver currently in mainline is broken:

bash-3.1# modprobe maplemouse
[   56.886378] input: Dreamcast Mouse as /devices/virtual/input/input3
[   56.918379] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[   56.930543] pc = c003304e
[   56.934973] *pde = 00000000
[   56.944948] Oops: 0000 [#1]
[   56.947867] Modules linked in: maplemouse(+)
[   56.952353]
[   56.953921] Pid : 1157, Comm: \0x09\0x09modprobe
[   56.958021] CPU : 0        \0x09\0x09Not tainted  (2.6.30-rc2-00130-g3e98f9f #1)
[   56.958052]
[   56.966567] PC is at dc_mouse_open+0xe/0x40 [maplemouse]
[   56.972125] PR is at input_open_device+0x8a/0xc0
[   56.976944] PC  : c003304e SP  : 8c88bdcc SR  : 40008100 TEA : c0033834
[   56.983854] R0  : 000006c4 R1  : 00000000 R2  : 40008101 R3  : 00000000
[   56.990744] R4  : 8c8db800 R5  : c0033080 R6  : 00000005 R7  : 00000200
[   56.997635] R8  : 8c8db800 R9  : 8c8dbe3c R10 : 00000000 R11 : 8c98881c
[   57.004525] R12 : 8c8dbe64 R13 : 8ca50140 R14 : 8c88bdd4
[   57.010063] MACH: 00000497 MACL: 00000348 GBR : 29674440 PR  : 8c1b4d0a
[   57.016939]
...

Here is a fix for this, keeping an open and close, so reducing
the load on the system when the mouse is not in use, and also properly
referencing the maple device buffer following the recent update.

Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-27 09:22:31 +09:00
Dmitry Torokhov
6b9ff696ba Input: lifebook - add DMI entry for Fujitsu B-2130
Although we already have entry for ZEPHYR the match is done
on product name whereas B-2130 BIOS has it in board name.

Reported-by: Yuriy Zhuravlev <stalkerg@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-24 15:18:22 -07:00
Dmitry Torokhov
b75d17285b Input: ALPS - add signature for Toshiba Satellite Pro M10
This toshiba has a touchpad with trackpoint and 2 sets of left
and right buttons (above and below touchpad).

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-23 19:36:03 -07:00
Arjan Opmeer
b2546df69b Input: elantech - make sure touchpad is really in absolute mode
There exist laptops with Elantech touchpads where switching to absolute mode
does not happen, although writing the configuration register succeeds
without error. Reading back the register afterwards reveils that the
absolute mode bit is not set as if masked out by the touchpad firmware.

Always read back register 0x10, make sure that for hardware version 1 the
absolute mode bit is actually set and fail otherwise. This prevents the case
where the touchpad is claimed by the Elantech driver but is nonetheless not
working.

Signed-off-by: Arjan Opmeer <arjan@opmeer.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-18 19:11:59 -07:00
Arjan Opmeer
3f8c0df43d Input: elantech - provide a workaround for jumpy cursor on firmware 2.34
It seems that Elantech touchpad firmware version 2.34 on the Hercules eCAFÉ
suffers from a problem where bogus coordinates get reported at the beginning
of a touch action. This causes the mouse cursor or the scrolled page to
jump.

Included patch provides a workaround that discards mouse packets that are
likely to contain bogus coordinates. The workaround is activated when we
detect touchpad with fimware version 2.34.

Signed-off-by: Arjan Opmeer <arjan@opmeer.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-18 19:11:51 -07:00
Dmitry Torokhov
0c387ec88a Merge branch 'next' into for-linus 2009-04-16 08:51:52 -07:00
Ilpo Järvinen
9a03fbe802 Input: pc110pad - remove unused variable dev
dev is leftover from b0ee0d3eb3
(Input: pc110pad - use no_pci_devices()).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-04-15 09:04:03 -07:00
Dmitry Torokhov
ba28f22e7c Merge branch 'next' into for-linus 2009-04-08 00:00:33 -07:00
Linus Torvalds
811158b147 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)
  trivial: Update my email address
  trivial: NULL noise: drivers/mtd/tests/mtd_*test.c
  trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h
  trivial: Fix misspelling of "Celsius".
  trivial: remove unused variable 'path' in alloc_file()
  trivial: fix a pdlfush -> pdflush typo in comment
  trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL
  trivial: wusb: Storage class should be before const qualifier
  trivial: drivers/char/bsr.c: Storage class should be before const qualifier
  trivial: h8300: Storage class should be before const qualifier
  trivial: fix where cgroup documentation is not correctly referred to
  trivial: Give the right path in Documentation example
  trivial: MTD: remove EOL from MODULE_DESCRIPTION
  trivial: Fix typo in bio_split()'s documentation
  trivial: PWM: fix of #endif comment
  trivial: fix typos/grammar errors in Kconfig texts
  trivial: Fix misspelling of firmware
  trivial: cgroups: documentation typo and spelling corrections
  trivial: Update contact info for Jochen Hein
  trivial: fix typo "resgister" -> "register"
  ...
2009-04-03 15:24:35 -07:00