K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2013-06-05T00:45:19.499683Z
K 7
svn:log
V 612
Implement a bit of a hack to store the AR9285/AR9485 RX LNA configuration in
the RX antenna field.

The AR9285/AR9485 use an LNA mixer to determine how to combine the signals
from the two antennas.  This is encoded in the RSSI fields (ctl/ext) for
chain 2.  So, let's use that here.

This maps RX antennas 0->3 to the RX mixer configuration used to
receive a frame.  There's more that can be done but this is good enough
to diagnose if the hardware is doing "odd" things like trying to
receive frames on LNA2 (ie, antenna 2 or "alt" antenna) when there's
only one antenna connected.

Tested:

* AR9285, STA mode

END