On Mon, Oct 17, 2016 at 3:07 PM, Jarosław Nieć <zuljin...@gmail.com> wrote:
>> This thread does seem to suggest there is (some) CEC hardware...
>> Also some code here ;
>> 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.
I believe there is a bitbanging I2C implementation already in the
kernel. Might make a good place to start from.
> Regards, Jarek
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