> https://groups.google.com/forum/#!topic/linux-sunxi/l5jhSY8PDFA
> This thread does seem to suggest there is (some) CEC hardware...​
> Also some code here ;
> https://groups.google.com/forum/#!msg/linux-sunxi/cNbMiwzgGJ0/tK-KvXkn-pQJ
> Not sure if you missed it or i'm blind, just ignore if nonsense ;)
I saw this code and my implementation use it as a reference how to use HDMI-CEC
register. Unfortunately this implementation is unfinished and AFAIK is
using very ineffective busy-wait loop.
CEC hardware in A10 is very very simple and basically is just mapping of
CEC line state to register in memory. It isn't similar to other CEC cores
that can transmit/receive whole messages on its own.
Thats why we need to use bit banging in kernel to use it at all.

Regards, Jarek

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