linux-toradex.git/drivers/input/touchscreen/wacom_w8001.c, branch v4.19

Input: wacom_w8001 - constify serio_device_id

2017-08-19T00:15:41+00:00

serio_device_id are not supposed to change at runtime. All functions
working with serio_device_id provided by  work with
const serio_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav 
Signed-off-by: Dmitry Torokhov

Input: wacom_w8001 - handle errors from input_mt_init_slots()

2016-07-19T18:42:44+00:00

input_mt_init_slots() may fail and we should be handling failures properly.

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

Input: wacom_w8001 - resolution wasn't set for ABS_MT_POSITION_X/Y

2016-07-19T18:42:42+00:00

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

Revert "Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE"

2016-07-14T16:33:41+00:00

This reverts commit 5f7e5445a2de848c66d2d80ba5479197e8287c33 because
removal of input_mt_report_slot_state() means we no longer generate
tracking IDs for the reported contacts.

Cc: stable@vger.kernel.org
Acked-by: Peter Hutterer 
Acked-by: Ping Cheng

Input: wacom_w8001 - ignore invalid pen data packets

2016-06-23T20:38:45+00:00

ThinkPad X60 Tablet PC (pen only device) sometime posts
packets that are larger than W8001_PKTLEN_TPCPEN.

Reported-by: Chris J Arges 
Tested-by: Chris J Arges 
Signed-off-by: Ping Cheng 
Reviewed-by: Peter Hutterer 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov

Input: wacom_w8001 - w8001_MAX_LENGTH should be 13

2016-06-23T18:22:36+00:00

Somehow the patch that added two-finger touch support forgot to update
W8001_MAX_LENGTH from 11 to 13.

Signed-off-by: Ping Cheng 
Reviewed-by: Peter Hutterer 
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov

Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE

2016-01-11T08:12:53+00:00

As of e0361b70175 ("Input: wacom_w8001 - split the touch and pen devices
into two devices") the touch events aren't multiplexed over the same device
anymore, the use of ABS_MT_TOOL_TYPE is superfluous. And even before then
it only ever sent MT_TOOL_TYPE_FINGER anyway.

Signed-off-by: Peter Hutterer 
Signed-off-by: Dmitry Torokhov

Input: wacom_w8001 - split the touch and pen devices into two devices

2015-12-03T23:58:52+00:00

These devices have a pen device and a touch device through the same serial
protocol, split it up into two separate devices like we do for USB Wacom
tablets too.

Userspace already matches on the device name so we can't drop it
completely. Compose the same basename based on capabilities and append the
tool type, leading to a name like "Wacom Serial Penabled 2FG Touchscreen
Pen".

Note that this drops BTN_TOOL_FINGER, it is not needed once the tools
are split out (and a touch device with BTN_TOOL_FINGER is interpreted
as touchpad by most of userspace).

Signed-off-by: Peter Hutterer 
Acked-by: Benjamin Tissoires 
Signed-off-by: Dmitry Torokhov

Input: wacom_w8001 - split pen and touch initialization up

2015-12-03T23:58:52+00:00

This is preparation work for splitting it up for two event nodes.

Signed-off-by: Peter Hutterer 
Acked-by: Benjamin Tissoires 
Signed-off-by: Dmitry Torokhov

Input: wacom_w8001 - handle touch error case correctly

2015-12-03T23:58:51+00:00

If a device failed at the pen setup and gets a zero reply from the touch
device, we need to return an error. Otherwise we have a device with
nothing but a name and the EV_KEY and EV_ABS bits.

Signed-off-by: Peter Hutterer 
Acked-by: Benjamin Tissoires 
Signed-off-by: Dmitry Torokhov