[okl4-developer] Touchscreen on S3C2440

[Rémy Gottschalk]

Hi all,

I decided to leave the flash problem for later and try to resurrect this 
  good old ig_touch.

For now i managed to get it compiling again. I used the drivers doc, the 
  serial server and s3c2410 uart drivers, and all the lcd and og fb 
stuff as example.

So s3c2410_touch and vtouch compile (although I destructed some of the 
working part for now). However if i forcefully call do_input_work() i 
got some encouraging debug output corresponding to the real state of the 
touchscreen (ie : pen up / pen down).

My current issue to continue my rescue/update mission is that I can't 
confirm if it generate any interruption at all. What I am sure of is 
that device_interrupt_impl() is never called nor interrupt/async_handler 
in vtouch are.

Since I don't really know the expected flow I feel like blindly placing 
traps :). For example I try in vain to see if the irq I am expecting was 
passing through s3c2410_do_irq() in /platform/s3c2410/pistachio/interrupt.cc

So could you inform me a little about the normal interruption flow. 
Especially the lowest point in order to confirm whether my device is 
correctly configured and generating interruptions or not.

Thanks.

PS. Could you also tell me if ig_touch was ever functional :)

-- 
Remy Gottschalk - rgottschalk at linagora.com
Ingénieur informatique embarquée
Groupe LINAGORA - http://www.linagora.com
Tél.: +33(0)1 58 18 68 28 - Fax : +33(0)1 58 18 68 29