K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2012-09-13T07:22:40.759233Z
K 7
svn:log
V 834
Introduce an AR5416 flavour of the IFS and mac usec/timing configuration
used when running the chips in half/quarter rate.

This sets up some default parameters which are then overridden by the
driver (which manually configures things like slot timing at interface
start time.)

Although this is a copy-and-modify from the AR5212 HAL, I did peek
at the reference HAL and the ath9k driver to see what they did.
Ath9k in particular doesn't hard-code this - instead, their version
of ar5416InitUserSettings() does all of the relevant math.

TODO:

* do the math, not hard code things!
* fix the mac clock calculation for the AR9287; since it runs the
  MAC clock at a higher rate, requiring all the duration calculations
  to change;
* Do a whole lot more validation for half/quarter rates.

Obtained from:	Qualcomm Atheros, Linux ath9k

END