Commit Graph

370 Commits

Author SHA1 Message Date
Andrew Drake
c331eb580a Input: bcm5974 - Add support for newer MacBookPro8,2
New MacBook Pro devices reporting product name MacBookPro8,2 come with
newer/higher resolution touchpads than others with the same product
name with USB ID 05ac:0252. This patch adds support for these devices.

Signed-off-by: Andrew Drake <adrake@adrake.org>
Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-16 23:31:43 -07:00
Joshua V. Dillon
db0b34b074 Input: bcm5974 - add support for touchpads found in MacBookAir4,2
Added USB device IDs for MacBookAir4,2 trackpad. Device constants were
copied from the MacBookAir3,2 constants. The 4,2 device specification is
reportedly unchanged from the 3,2 predecessor and seems to work well.

Signed-off-by: Joshua V Dillon <jvdillon@gmail.com>
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-08-08 23:55:03 -07:00
Randy Dunlap
ab3d0abe2e Input: psmouse - hgpk.c needs module.h
hgpk.c uses interfaces from linux/module.h, so it should include that file.
This fixes build errors.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-30 12:03:26 -07:00
Dmitry Torokhov
3c6b50141e Input: synaptics - fix reporting of min coordinates
We were testing wrong bit in the extended capability query.

Reported-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-25 01:38:21 -07:00
Axel Lin
fea2021c76 Input: lifebook - make dmi callback functions return 1
We only care about if there is a successful match from the table (or
no match at all), so let's make dmi_check_system return immediately
instead of iterating thorough the whole table.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-13 00:08:15 -07:00
Dmitry Torokhov
a66413fbc3 Input: synaptics - set minimum coordinates as reported by firmware
Newer Synaptics firmware allows to query minimum coordinates reported by
the device, let's use this data.

Acked-by: Chase Douglas <chase.douglas@canonical.com>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-09 12:33:35 -07:00
Daniel Kurtz
28d5fd860f Input: synaptics - process button bits in AGM packets
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 <djkurtz@chromium.org>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-06 23:01:17 -07:00
Daniel Kurtz
bea9f0ff26 Input: synaptics - rename set_slot to be more descriptive
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-06 23:01:13 -07:00
Daniel Kurtz
a9f0b79edf Input: synaptics - fuzz position for touchpad with reduced filtering
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 <djkurtz@chromium.org>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-06 23:01:09 -07:00
Daniel Kurtz
8be3c650f5 Input: synaptics - set resolution for MT_POSITION_X/Y axes
Set resolution for MT_POSITION_X and MT_POSITION_Y to match ABS_X and
ABS_Y, respectively.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-07-06 23:01:00 -07:00
Hans-Christian Egtvedt
7c40952295 Input: update author email for gpio_mouse, at32psif, and atmel-wm97xx
This patch updates the email address of the gpio_mouse, at32psif, and
atmel-wm97xx drivers supported by me to an email account I will use on a more
regular basis in the future.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-06-29 00:26:02 -07:00
Jesper Juhl
5993548725 Input: remove unneeded version.h includes
It was pointed out by 'make versioncheck' that some includes of
linux/version.h are not needed in drivers/input/.
This patch removes them.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-06-27 12:42:54 -07:00
Linus Torvalds
4637f40f20 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: (40 commits)
  Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander
  Input: tsc2007 - add X, Y and Z fuzz factors to platform data
  Input: tsc2007 - add poll_period parameter to platform data
  Input: tsc2007 - add poll_delay parameter to platform data
  Input: tsc2007 - add max_rt parameter to platform data
  Input: tsc2007 - debounce pressure measurement
  Input: ad714x - fix captouch wheel option algorithm
  Input: ad714x - allow platform code to specify irqflags
  Input: ad714x - fix threshold and completion interrupt masks
  Input: ad714x - fix up input configuration
  Input: elantech - remove support for proprietary X driver
  Input: elantech - report multitouch with proper ABS_MT messages
  Input: elantech - export pressure and width when supported
  Input: elantech - describe further the protocol
  Input: atmel_tsadcc - correct call to input_free_device
  Input: add driver FSL MPR121 capacitive touch sensor
  Input: remove useless synchronize_rcu() calls
  Input: ads7846 - fix gpio_pendown configuration
  Input: ads7846 - add possibility to use external vref on ads7846
  Input: rotary-encoder - add support for half-period encoders
  ...
2011-05-24 11:58:49 -07:00
Geert Uytterhoeven
659e6ed55f input/atari: Fix mouse movement and button mapping
Up and down movements were reversed, left and right buttons were swapped.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-05-19 18:19:12 +02:00
Michael Schmitz
186f200a95 input/atari: Fix atarimouse init
Atarimouse fails to load as a module (with ENODEV), due to a brown paper
bag bug, misinterpreting the semantics of atari_keyb_init().

[geert] Propagate the return value of atari_keyb_init() everywhere

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-05-19 18:19:11 +02:00
Michael Schmitz
7786908c3c input/atari: Use the correct mouse interrupt hook
The Atari keyboard driver calls atari_mouse_interrupt_hook if it's set, not
atari_input_mouse_interrupt_hook. Fix below.

[geert] Killed off atari_mouse_interrupt_hook completely, after fixing another
incorrect assignment in atarimouse.c.

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-05-19 18:19:11 +02:00
Éric Piel
9cb6cfae4e Input: elantech - remove support for proprietary X driver
Apparently somewhere someone had a proprietary X driver. To get the
multitouch info, it uses some hack on the normal API instead of using
the multitouch protocol. Now that the multitouch info is transmitted
correctly it makes not much sense to keep it. Especially because it's
impossible to find this proprietary X driver anywhere, so the number of
users must be very low.

Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16 22:48:43 -07:00
Éric Piel
89eec4d71e Input: elantech - report multitouch with proper ABS_MT messages
Multitouch info was reported only via a old protocol used by the
proprietary X driver from elantech. Let's report the multitouch info
also following the official MT protocol. It's semi-mt because the device
only reports the lowest/highest coordinates.

This was done following the multi-touch-protocol.txt documentation, and
inspired by the bcm5974 and elantech implementations. Testing was light
as there is not many applications using this protocol yet, but the X
synaptics driver didn't complain and the X multitouch driver behaved
correctly.

Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16 22:48:39 -07:00
Éric Piel
f941c705f6 Input: elantech - export pressure and width when supported
Using the info of the Dell/Ubuntu driver, described in the protocol
document, report both width and pressure when pressing 1 and 3
fingers, for the versions of the touchpad which support it.

Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-16 22:48:36 -07:00
Linus Torvalds
42933bac11 Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6
* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6:
  Fix common misspellings
2011-04-07 11:14:49 -07:00
Lucas De Marchi
25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Jan Beulich
708748670c Input: synaptics - fix crash in synaptics_module_init()
'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 ef8313bb1a,
but was introduced about a year earlier with
7705d548cb (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 <jbeulich@novell.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-31 00:04:52 -07:00
Dmitry Torokhov
97eb3f2435 Merge branch 'next' into for-linus 2011-03-18 23:38:50 -07:00
Andy Botting
47340bd9fe Input: bcm5974 - add support for MacBookPro8
This patch add multitouch support for the MacBookPro8,1 and
MacBookPro8,2 models.

Cc: stable@kernel.org
Signed-off-by: Andy Botting <andy@andybotting.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-03-12 20:37:30 -08:00
Henrik Rydberg
5063511539 Input: bcm5974 - Report button also for zero fingers
With the current code, pressing the integrated button with an
isolating tool does not result in any button report. Fixed
with this this patch.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-27 01:48:30 -08:00
Dmitry Torokhov
9bb794ae05 Input: synaptics - document 0x0c query
Since Synaptics technical writers department is a bit slow releasing updated
Synaptics interface guide, let's add some new bits (with their blessing)
to the code so that they don't get lost.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-23 08:53:01 -08:00
Mark Brown
87b2c7df32 Input: synaptics_i2c - convert to dev_pm_ops
There is a general move to convert drivers to dev_pm_ops rather than bus
specific PM ops in order to facilitate core development. Do this converison
for synaptics-i2c.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-21 01:02:32 -08:00
Linus Torvalds
1ca05b7fc2 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: synaptics - retry failed resets when reconnecting
  Input: synaptics - fix reconnect logic on MT devices
  Input: tegra-kbc - fix keymap entry for LeftMeta key
  Input: tegra-kbc - fix build error
2011-01-31 13:02:34 +10:00
Alexandre Peixoto Ferreira
c63fe0a41f Input: synaptics - retry failed resets when reconnecting
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 <alexandref75@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-01-28 22:32:07 -08:00
Alexandre Peixoto Ferreira
baddf58963 Input: synaptics - fix reconnect logic on MT devices
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 <alexandref75@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-01-28 22:32:03 -08:00
David Rientjes
6a108a14fa kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.

This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel.  A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).

Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David Woodhouse <david.woodhouse@intel.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Greg KH <gregkh@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robin Holt <holt@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-20 17:02:05 -08:00
Linus Torvalds
facc7a96d4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (34 commits)
  HID: roccat: Update sysfs attribute doc
  HID: roccat: don't use #pragma pack
  HID: roccat: Add support for Roccat Kone[+] v2
  HID: roccat: reduce number of functions in kone and pyra drivers
  HID: roccat: declare meaning of pack pragma usage in driver headers
  HID: roccat: use class for char device for sysfs attribute creation
  sysfs: Introducing binary attributes for struct class
  HID: hidraw: add compatibility ioctl() for 32-bit applications.
  HID: hid-picolcd: Fix memory leak in picolcd_debug_out_report()
  HID: picolcd: fix misuse of logical operation in place of bitop
  HID: usbhid: base runtime PM on modern API
  HID: replace offsets values with their corresponding BTN_* defines
  HID: hid-mosart: support suspend/resume
  HID: hid-mosart: ignore buttons report
  HID: hid-picolcd: don't use flush_scheduled_work()
  HID: simplify an index check in hid_lookup_collection
  HID: Hoist assigns from ifs
  HID: Remove superfluous __inline__
  HID: Use vzalloc for vmalloc/memset(,0...)
  HID: Add and use hid_<level>: dev_<level> equivalents
  ...
2011-01-10 08:15:37 -08:00
Dmitry Torokhov
554738da71 Merge branch 'next' into for-linus
Conflicts:
	include/linux/input.h
2011-01-06 22:34:59 -08:00
Dmitry Torokhov
5c461b913a Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt into next 2010-12-27 17:33:20 -08:00
Andres Salomon
ef8313bb1a Input: psmouse - disable the synaptics extension on OLPC machines
OLPC has switched to a Synaptics touchpad.  It turns out that it's
pretty useless in absolute mode.  This patch looks for an OLPC
system (via DMI tables), and refuses to init Synaptics mode in
that scenario (falling back to relative mode).

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-12-23 01:21:23 -08:00
Andres Salomon
7ee99161a4 Input: psmouse - fix up Synaptics comment
Minor comment fixup for typos and grammar. Noticed while adding a
separate workaround.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-12-23 01:21:11 -08:00
Henrik Rydberg
4f56ce929c Input: synaptics - ignore bogus mt packet
In multitouch mode, at least one device (fw: 7.4 id: 0x1c0b1) sometimes
sends a final main packet with x == 1. Since the normal values are above
1472, this is clearly bogus. At the same time, a two-finger touch is
signaled, even though only one finger was on the pad to begin with. This
patch ignores the packet altogether, removing the problem.

Acked-by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2010-12-22 11:15:28 +01:00
Henrik Rydberg
fec6e5252b Input: synaptics - add multi-finger and semi-mt support
The Synaptics 2.7 series of touchpads support a mode for reporting two
sets of X/Y/Pressure data (advanced gesture mode). By default, these
devices report only single finger data, depriving userspace of the
nowadays ubiquitous two-finger scroll gesture.

Enabling advanced gesture mode also enables the multi-finger report,
although the device does not claim that capability. Up to three
fingers can be reported this way.

While two or three fingers are touching, the normal packet is
prepended by a reduced finger packet of lower resolution. From the two
packets (which do not represent the actual fingers), the bounding
rectangle of the individual contacts can be extracted.  This
information is sufficient to perform scaling gestures and a limited
form of rotation gesture. The behavior has been coined semi-mt
capability, and is signaled to userspace via the INPUT_PROP_SEMI_MT
device property.

Work to decode the advanced gesture packet: Takashi Iwai.
Cleanup and testing of the original patch: Chase Douglas.
Minor cleanup and testing: Chris Bagwell.
Finalization and semi-mt support: Henrik Rydberg.

Reported-by: Tobyn Bertram
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2010-12-21 18:11:25 +01:00
Henrik Rydberg
c14890a8e5 Input: synaptics - report clickpad property
With the new input property interface, it is possible to report the
special quirks of a device using ioctl/sysfs. This patch sets up the
device as a pointer, and reports the clickpad functionality via the
INPUT_PROP_BUTTONPAD property.

Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2010-12-21 18:09:19 +01:00
Jiri Kosina
2ade0c1d9d Merge branch 'master' into upstream 2010-12-10 15:19:18 +01:00
Yan Li
3bfa321e66 Input: synaptics - fix handling of 2-button ClickPads
Lenovo S10-3t's ClickPad is a 2-button ClickPad that reports BTN_LEFT
and BTN_RIGHT as normal touchpad, unlike the 1-button ClickPad used in
HP mini 210 that reports solely BTN_MIDDLE.

In 0xc0-cap response, the 1-button ClickPad has the 20-bit set while
2-button ClickPad has the 8-bit set.

This patch makes the kernel only handle 1-button ClickPad specially,
and treat 2-button ClickPad in the same fashion as regular touchpads.

This fixes kernel bug #18122 and MeeGo bug #4807.

Signed-off-by: Yan Li <yan.i.li@intel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-30 23:59:41 -08:00
Edgar (gimli) Hucek
6021afcf19 input: bcm5974: Add support for MacBookAir3
This patch adds support for the MacBookAir3,1 and MacBookAir3,2
models.

[rydberg@euromail.se: touchpad range calibration]
Cc: stable@kernel.org
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>
2010-11-15 14:18:36 +01:00
Paul Fox
20a4c261ad Input: hgpk - fix powersave mode
Recent testing of this codepath showed that it wasn't working,
perhaps due to changes within the input layer. This fixes it.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-15 01:33:59 -08:00
Daniel Drake
34caed2082 Input: hgpk - recalibration tweaks
Disable the recalibration guard where new recalibrations are triggered
if we detect a packet too soon after calibrating - we found that this
results in erroneous recalibrations, and if the recalibration failed
then the rest of our badness-detection code will request another.

Add a module option disabling all of the recalibration code, in case
an OLPC deployment thinks all of the workarounds we have are doing
more damage than good and wants to experiment with them all disabled.

Based on work by Paul Fox.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-15 01:33:51 -08:00
Daniel Drake
67f56bb0f4 Input: hgpk - detect simple mode overflows
Based on work by Paul Fox.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-15 01:33:47 -08:00
Daniel Drake
a309cdc778 Input: hgpk - extend jumpiness detection
In addition to forcing recalibrations upon detection of cursor jumps (and
performing them quicker than before), detect and discard errant 'jump'
packets caused by a firmware bug, which are then repeated with each one
being approximately half the delta of the one previously (as if it is
averaging out)

Based on original work by Paul Fox.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-11 22:21:24 -08:00
Daniel Drake
c0dc834265 Input: hgpk - rework spew detection
The old implementation of spew detection simply tracked the overall
position delta of the cursor over every 100 packets. We found that
this causes occasional false positives in spew detection, and also
that the conditions of the spewy packets are perhaps more fixed than
we once thought.

Rework the spew detection to look for packets of specific small
delta, and only recalibrating if the overall movement delta stays
within expected bounds.

Also discard duplicate packets in the advanced mode, which appear
to be very common. If we don't, the spew detection kicks in far
too early. If we get a large spew of duplicates, request a
recalibration straight up.

Based on earlier work by Paul Fox.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-11 22:21:19 -08:00
Daniel Drake
ca94ec4354 Input: hgpk - support GlideSensor and PenTablet modes
Add a "hgpk_mode" sysfs attribute that allows selection between 3 options:
Mouse (the existing option), GlideSensor and PenTablet.

GlideSensor is an enhanced protocol for the regular touchpad mode that
additionally reports pressure and uses absolute coordinates. We suspect
that it may be more reliable than mouse mode in some environments.

PenTablet mode puts the touchpad into resistive mode, you must then use
a stylus as an input. We suspect this is the most reliable way to drive
the touchpad.

The GlideSensor and PenTablet devices expose themselves with the
intention of being combined with the synaptics X11 input driver.

Based on earlier work by Paul Fox.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-11 22:21:15 -08:00
Linus Torvalds
09d692e6ff 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: appletouch - remove extra KERN_DEBUG use from dprintk
  Input: bu21013_ts - fix null dereference in error handling
  Input: ad7879 - prevent invalid finger data reports
2010-10-31 21:02:39 -04:00
Joe Perches
d745b5326d Input: appletouch - remove extra KERN_DEBUG use from dprintk
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-10-31 07:16:00 -07:00