A test snapshot is avilable at:

http://people.freebsd.org/~sam/ath_hal-20060425.tgz

This version differs from what's in cvs mainly in that there are builds 
for new target platforms.  In particular I've done builds for all the 
Atheros SoC's.  Otherwise I believe I fixed the sparc builds. The alpha 
build is still untested and should be assumed broken until someone says 
otherwise.

This code should be a drop-in replacement for what's in cvs but be sure 
to rebuild both the driver and rate control module as there are ABI 
changes.  Please test and report regressions.

     Sam

PS. Sorry for the freebsd.org url :)