1088099 - Make PiTFT touch events more reliable

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: General, defect)

Description

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

There are a few issues I noticed in light testing

 - the mouse cursor is being drawn during touches, which probably means the driver is incorrectly sending hover_move events

 - we don't seem to be getting absolute event coordinates ... if I tap at (x,y), the position of the cursor depends on my past history of relevant movement.  This weird for both touch *and* mouse devices.

 - sometimes the events seem to stop working.  I couldn't find an easy way to reproduce that

 - it's really really hard to generate tap and touchmove events.  Possibly related to something above.

Comment 1

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Note: when this is fixed, I think we'll run into the next problem that gaia doesn't have "software" UI for the power button and home button.  That means to use those you'd need to keep a keyboard plugged in, which is kind of weird.

Gaia UI folks will probably have an opinion on the best way to add those, if they're currently absent.

Comment 2

[Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)]

software home button can be turned on in Settings -> Developer -> Software home button.

Comment 3

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Perfect, thanks :).

Comment 4

[Gerard Braad]

The touch events are not correct for me at all as the piTFT is using a portrait orientation, while touch events are read as landscape?

Comment 5

[cyril.rocheteau]

PiTFT  seems to be reliable with these two changes :
1) A kernel patch from Notro to prevent touchscreen freeze
more on https://github.com/notro/fbtft/issues/82

2) Calibration by adding an Input Device Configuration for PiTFT.
Push stmpe-ts.idc file in /system/usr/idc/
This file  declare driver device for touchscreen, and set max x/y  as report by driver in debug mode

See attachments

Comment 6

[cyril.rocheteau]

Attachment: Notro patch to prevent touchscreen freeze

Comment 7

[cyril.rocheteau]

Attachment: stmpe-ts.idc

Comment 8

[André Fiedler]

Maybe related: https://bugzilla.mozilla.org/show_bug.cgi?id=1155675

Comment 9

[BMO Automation]

Firefox OS is not being worked on