module.
* If sc->sc_dodfs is set to 1 by the ath_dfs_radar_enable(),
set the relevant rx filter bit to begin receiving radar PHY
errors. The HAL code already knows how to set the relevant
error mask register to enable radar events.
* Add a missing call to ath_dfs_radar_enable() after ath_hal_reset()
* change ath_dfs_process_phyerr() to take a const char *buf for now,
rather than a descriptor. This way it can get access to the packet
buffer contents.
This is in no way a complete DFS/radar detection implementation!
It merely creates an abstracted interface which allows for future
development of the DFS radar detection code.
Note: Net80211 already handles the bulk of the DFS machinery,
all we need to do here is figure out that a radar event has occured
and inform it as such. It then drives the DFS state engine for us.
The "null" DFS radar detection module is included by default;
it doesn't require a device line.
This commit:
* Adds a simple abstracted layer for radar detection state -
sys/dev/ath/ath_dfs/;
* Implements a null DFS module which doesn't do anything;
(ie, implements the exact behaviour at the moment);
* Adds hooks to the ath driver to process received radar events
and gives the DFS module a chance to determine whether
a radar has been detected.
Obtained from: Atheros
