This adds support for hanwang Art Master HD 5012 electromagnetic tablet.
Signed-off-by: NXing Wei <weixing@hanwang.com.cn>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Currently HID layer only allows to remap keycodes for known usages,
and responds with -EINVAL when user tries to map new usage code.
This precludes us form relying on udev/keymap for establishing correct
mappings and forces us to write dummy HID drivers responsible only for
setting up keymaps.

Let's allow remapping not only usages that have been set up as keys
(usage->type == EV_KEY) but also yet-unmapped usages (usage->type == 0).
Acked-by: NJarod Wilson <jarod@redhat.com>
Acked-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Switch the code to use new style of getkeycode and setkeycode
methods to allow retrieving and setting keycodes not only by
their scancodes but also by index.
Acked-by: NVille Syrjälä <syrjala@sci.fi>
Tested-by: NJarod Wilson <jarod@wilsonet.com>
Tested-by: NVille Syrjälä <syrjala@sci.fi>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Nobody uses it anymore.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Memory pointed to by the pointer should not change.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Nobody uses it anymore.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Memory pointed to by these fields is not supposed to change.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Commit ea486e68 changed kseriod thread
to become not freezable so we do not need this include anymore.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add necessary events so that Hanwang Art Master III tablet can be handled
by the stock xf86-input-wacom driver.
Signed-off-by: NXing Wei <weixing@hanwang.com.cn>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This adds support for Pen on Bamboo Pen and Bamboo Pen&Touch devices.
Touchpad is handled by previous Bamboo Touch logic.
Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

This is in preparation of pen support in same irq handler.
Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Bamboo P&T need to use second form of usb_set_report() to
ask to report tablet data.

With previous addition of Bamboo Touch, BTN_TOOL_TRIPLETAP is now used
for both TABLETPC2FG and BAMBOO_PT types.  So reduced check to
match type=TABLETPC2FG.

This change shows redundant check for !TABLETPC2FG in else statement.
Signed-off-by: NChris Bagwell <chris@cnpbagwell.com>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Switch HID code to use new style of getkeycode and setkeycode
methods to allow retrieving and setting keycodes not only by
their scancodes but also by index.
Acked-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Switch the code to use new style of getkeycode and setkeycode
methods to allow retrieving and setting keycodes not only by
their scancodes but also by index.
Acked-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Switch sparse keymap library to use new style of getkeycode and
setkeycode methods to allow retrieving and setting keycodes not
only by their scancodes but also by index.
Acked-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Several devices use a high number of bits for scancodes. One important
group is the Remote Controllers. Some new protocols like RC-6 define a
scancode space of 64 bits.

The current EVIO[CS]GKEYCODE ioctls allow replace the scancode/keycode
translation tables, but it is limited to up to 32 bits for scancode.

Also, if userspace wants to clean the existing table, replacing it by
a new one, it needs to run a loop calling the ioctls over the entire
sparse scancode space.

To solve those problems, this patch extends the ioctls to allow drivers
handle scancodes up to 32 bytes long (the length could be extended in
the future should such need arise) and allow userspace to query and set
scancode to keycode mappings not only by scancode but also by index.

Compatibility code were also added to handle the old format of
EVIO[CS]GKEYCODE ioctls.

Folded fixes by:
- Dan Carpenter: locking fixes for the original implementation
- Jarod Wilson: fix crash when setting keycode and wiring up get/set
                handlers in original implementation.
- Dmitry Torokhov: rework to consolidate old and new scancode handling,
                   provide options to act either by index or scancode.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NJarod Wilson <jarod@redhat.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Without this the jitter on the touchscreen makes it hard to use for
most GUI toolkits.

Signed-off-by: James Ketrenos<jketreno@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The Bamboo Touch reports a sub-screen resolution of 480x320.  The
signal-to-noise ratio is only about 100, so filtering is needed in
order to reduce the jitter to a usable level. However, the low
resolution leads to round-off errors in the EWMA filter, resulting in
extremely jerky pointer motion. This patch explicitly sets a higher
resolution for those devices, and tells this to the completion handler
via a low-resolution quirk.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for the Bamboo Touch trackpad, and make it work with
both the Synaptics X Driver and the Multitouch X Driver. The device
uses MT slots internally, so the choice of protocol is a given.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Collect device-specific code into a single function, and use quirks to
flag specific behavior instead.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The Bamboo devices have multiple interfaces which need to be setup
separately. Use the HID parsing mechanism to achieve that.
Signed-off-by: NPing Cheng <pinglinux@gmail.com>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The signal-to-noise ratio varies between devices, but currently all
devices are treated the same way. Add fuzz parameters to the feature
struct, allowing for tailored treatment of devices.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Acked-by: NPing Cheng <pingc@wacom.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Conflicts:
	drivers/input/touchscreen/Makefile

Add the PowerOn (PonKey) button support to detect power on/off events.
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NSundar R Iyer <sundar.iyer@stericsson.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add logic to wm97xx_read_aux_adc() to retry reading the adc if the
sample failed.  This could occur if the previous sample was still in
the return register or the sample timed-out.  Also avoid a pathologic
failure mode by disabling the digitizer and returning -EBUSY after 5
retries.
Signed-off-by: NEric Millbrandt <emillbrandt@dekaresearch.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Use platform_device_del() instead of platform_device_unregister() in error
handling path.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: NLiam Girdwood <lrg@slimlogic.co.uk>
Acked-by: NMark Brown <broonie@opensoruce.wolfsonmicro.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: NWolfram Sang <w.sang@pengutronix.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

It is forbidden to call input_free_device() after input_unregister_device().
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Once device is registered we should call input_unregister_device()
instead of input_free_device().
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

We call platform_get_drvdata() in tps6507x_ts_remove(),
thus we should call platform_set_drvdata() in tps6507x_ts_probe().
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Use input_free_device() to free devices that have not been registered.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Add support for Art Master III tablet of BeiJing HanwangTechnology Co, Ltd.
Signed-off-by: NXing Wei <weixing@hanwang.com.cn>
Acked-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The driver is in reasonable shape now so let's move it out of staging.
Acked-by: NAlan Cox <alan@linux.intel.com>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Use 8 bit update commands instead of a 16 bit unaligned read/write
pair which fails after the first few calls; the voodoo in the original
doesn't seem to be required with this mechanism.
Tested-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NAndy Ross <andy.ross@windriver.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

The touch screen driver tries to find a range of free channels (which
are an array of bytes), by scanning for the "end of used channel" marker.
However it tries to be WAAAAY too smart and does 32 bit logic on 8 bit
quantities, and in the process completely gets it wrong
(repeatedly read the same register instead of incrementing in the loop,
assuming that if any of the 4 bytes in the 32 byte quantity is free,
all four are free, returning the channel number divided by 4 rather than
the actual first free channel number)

On the setting side, the same mistakes are made by and large; changed
this to just use the byte SCU write functions....

With these fixes we go from a completely non detected touchscreen to
something that appears to completely get detected.
(after also fixing the ordering issue that Jacobs patch should solve)
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

AC: Reworked to merge with upstream input device work from Dmitry et al.
Signed-off-by: NAlek Du <alek.du@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Changes:

 - switch to use threaded IRQ
 - more __devinit/__devexit annotations
 - rely on input core to remove jitter from events
 - global pointer removed
 - NEC/MAXIM/Freescale handling factored out
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>