K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2012-07-23T03:52:18.296915Z
K 7
svn:log
V 416
Begin separating out the TX DMA setup in preparation for TX EDMA support.

* Introduce TX DMA setup/teardown methods, mirroring what's done in
  the RX path.

  Although the TX DMA descriptor is setup via ath_desc_alloc() /
  ath_desc_free(), there TX status descriptor ring will be allocated
  in this path.

* Remove some of the TX EDMA capability probing from the RX path and
  push it into the new TX EDMA path.

END