linux-toradex.git/drivers/input/tablet/wacom_wac.h, branch v3.0.10

Input: wacom - report resolution for pen devices

2011-03-27T05:31:06+00:00

Touch resolution is reported to the userland by retrieving the value
from the HID descriptor. But pen resolution is not since it can not
be retrieved. The current Wacom X driver has a resolution table.
To centralize the source of these values, the resolution entries are
added in the wacom_features struct for x and y coordinates respectively.
The values are then reported to the userland.

Signed-off-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov

Input: wacom - support one finger touch the touchscreen way

2011-03-13T04:37:20+00:00

There are two types of 1FGT devices supported in wacom_wac.c.
Changing them to follow the existing touchscreen format, i.e.,
only report BTN_TOUCH as a valid tool type.

Touch data will be ignored if pen is in proximity. This requires
a touch up event sent if touch was down when pen comes in. The
touch up event should be sent before any pen events are emitted.
Otherwise, two pointers would race for the cursor.

However, we can not send a touch up inside wacom_tpc_pen since
pen and touch are on different logical port. That is why we
have to check if touch is up before sending pen events.

Reviewed-by: Henrik Rydberg 
Reviewed-by: Chris Bagwell 
Signed-off-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov

Input: wacom - do not send 2FGT Tablet PC events in TAP format

2011-03-13T04:37:12+00:00

2FGT Tablet PC touch events were processed in _TAP_ format. Remove
them so we can change to _MT_ format.

Signed-off-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov

input: mt: Move tracking and pointer emulation to input-mt

2010-12-16T09:41:38+00:00

The drivers using the type B protocol all report tracking information
the same way. The contact id is semantically equivalent to
ABS_MT_SLOT, and the handling of ABS_MT_TRACKING_ID only complicates
the driver. The situation can be improved upon by providing a common
pointer emulation code, thereby removing the need for the tracking id
in the driver.  This patch moves all tracking event handling over to
the input core, simplifying both the existing drivers and the ones
currently in preparation.

Acked-by: Ping Cheng 
Acked-by: Jiri Kosina 
Signed-off-by: Henrik Rydberg

Input: wacom - add a quirk for low resolution Bamboo devices

2010-09-05T19:58:22+00:00

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: Henrik Rydberg 
Acked-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov

Input: wacom - add support for the Bamboo Touch trackpad

2010-09-05T19:58:17+00:00

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: Henrik Rydberg 
Acked-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov

Input: wacom - collect device quirks into single function

2010-09-05T19:58:12+00:00

Collect device-specific code into a single function, and use quirks to
flag specific behavior instead.

Signed-off-by: Henrik Rydberg 
Acked-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov

Input: wacom - parse the Bamboo device family

2010-09-05T19:58:03+00:00

The Bamboo devices have multiple interfaces which need to be setup
separately. Use the HID parsing mechanism to achieve that.

Signed-off-by: Ping Cheng 
Signed-off-by: Henrik Rydberg 
Signed-off-by: Dmitry Torokhov

Input: wacom - add fuzz parameters to features

2010-09-05T19:57:58+00:00

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: Henrik Rydberg 
Acked-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov

Input: wacom - add support for DTU2231 and DTU1631

2010-06-28T08:12:26+00:00

Add support for the two new devices: DTU2231 and DTU1631.

Signed-off-by: Ping Cheng 
Signed-off-by: Dmitry Torokhov