kernel/linux.git/drivers/input/touchscreen/sur40.c, branch v4.17.1

media: add video control handlers using V4L2 control framework

2018-02-14T18:29:55+00:00

This patch registers four standard control handlers using the corresponding V4L2 framework. Signed-off-by: Florian Echtler [hans.verkuil@cisco.com: lower-cased 0x0F and 0xF0] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: add panel register access functions

2018-02-14T18:29:14+00:00

These functions provide write access to the internal LCD panel registers which also control the sensor. They can be used to disable the preprocessor, set the illumination brightness, and adjust gain/contrast (which are stored together in one register internally called "vsvideo"). Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: add default settings and module parameters for video controls

2018-02-14T18:28:45+00:00

This patch adds parameter definitions and module parameters for the four userspace controls that the SUR40 can currently provide. Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: add missing blob structure field for tag id

2018-02-14T18:27:52+00:00

The SUR40 can recognize specific printed patterns directly in hardware; this information (i.e. the pattern id) is present but currently unused in the blob structure. Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

Input: sur40 - skip all blobs that are not touches

2017-07-12T21:20:28+00:00

The SUR40 labels all reported blobs as touch, token, or generic blob. Previously, all blobs were reported as touch regardless of type, causing lots of false positives. Present patch fixes this. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Dmitry Torokhov

Input: sur40 - silence unnecessary noisy debug output

2017-07-12T21:20:15+00:00

This information is unneccessary, even as debug output. Leave commented out as documentation of the packet ID quirk. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Dmitry Torokhov

Input: sur40 - add additional reverse-engineered information

2017-07-12T21:19:58+00:00

Due to recent reverse engineering efforts, a lot more information is now available about the internals of the SUR40. We document this in the kernel driver for future use. Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Dmitry Torokhov

Input: sur40 - fix bad endianness handling in sur40_poll

2017-04-05T15:52:36+00:00

sparse says: sur40.c:372:40: warning: restricted __le32 degrades to integer the header's data is __le32 so we need to convert it before comparing. Signed-off-by: Martin Kepplinger Signed-off-by: Dmitry Torokhov

Input: sur40 - validate number of endpoints before using them

2017-03-16T20:56:54+00:00

Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer or accessing memory that lie beyond the end of the endpoint array should a malicious device lack the expected endpoints. Fixes: bdb5c57f209c ("Input: add sur40 driver for Samsung SUR40... ") Signed-off-by: Johan Hovold Cc: stable@vger.kernel.org # 3.13 Signed-off-by: Dmitry Torokhov

[media] sur40: properly report a single frame rate of 60 FPS

2016-08-24T13:07:06+00:00

The device hardware is always running at 60 FPS, so report this both via PARM_IOCTL and ENUM_FRAMEINTERVALS. [hans.verkuil@cisco.com: fix suspect indent checkpatch warning] [mchehab@s-opensource.com: fix a trivial merge conflict] Signed-off-by: Martin Kaltenbrunner Signed-off-by: Florian Echtler Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab