CVS commit: src/sys/dev/pckbport

["Brett Lymn" <blymn%netbsd.org@localhost>]

Module Name:    src
Committed By:   blymn
Date:           Thu Oct 21 04:49:28 UTC 2021

Modified Files:
        src/sys/dev/pckbport: synaptics.c synapticsvar.h

Log Message:
Significant update to the synaptics touchpad driver.

* Accumulate packets for primary, secondary, finger count packets
  before handing off to pms_synaptics_process_packet.  This means
  that both primary and, possibly, secondary finger locations will
  be processed at the same time.  Previously the processing each
  packet as it arrived.

* Fix the secondary finger position reporting, there was an off by
  one in the shifts when decoding which effectively halved the
  reported position.

* For a clickpad, make the emulated button region "dead" so that finger
  movements in this region are ignored.  This makes it easier to click
  a button without accidentally repositioning the cursor.  There is a
  sysctl variable "button_region_movement_enable" that will allow
  these finger movements to be reported if this is desirable.

* Reset the finger ballistics when the number of fingers changes.  This
  stops the annoying position jumps when a second finger touch is added
  to or removed from the touchpad.

* Add a level argument to the DPRINTF macro so one can choose their
  level of debug spam via the debug sysctl variable.


To generate a diff of this commit:
cvs rdiff -u -r1.72 -r1.73 src/sys/dev/pckbport/synaptics.c
cvs rdiff -u -r1.11 -r1.12 src/sys/dev/pckbport/synapticsvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.