Atheros DFS radar detection

Adrian Chadd adrian at freebsd.org
Wed Aug 29 16:38:25 UTC 2012


On 28 August 2012 21:32, Wright, Brett
<Brett.Wright at cooperindustries.com> wrote:

>> Of course, it'd be really great if someone signed up for working on a
>> BSD licenced radar pattern detector.. :)
>
> So what would be needed to get something based on the GPL licensed (i.e.
> madwifi) pattern detector across to BSD license. The rules and
> legalities of this make my head spin! Any suggestions?

I'd honestly suggest just starting again, based on both the madwifi
and the Linux ath9k DFS pattern matching module.

The basic pattern matching technique isn't that hard. Dealing with
false positives is the tricky bit.

If someone does this, I'll even push to get the FFT data available
(AR9130 and later, sorry!) so you can do accurate chirp detection.
I'll even go through the carrier codebases and find all of the HAL DFS
work arounds and commit them to the tree.

Thanks,


Adrian


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