kern/170904: ath driver: configure related parameters when radar detection (DFS) is enabled

[Brett Wright]

>Number:         170904
>Category:       kern
>Synopsis:       ath driver: configure related parameters when radar detection (DFS) is enabled
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 23 02:10:01 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Brett Wright
>Release:        Head
>Organization:
>Environment:
>Description:
When enabling DFS Radar Detection in ath() driver, it makes sense to also make several other configuration changes to promote usability of radar detection:

- Disable the fast diversity stuff (ar5212 HAL)
- Disable ANI operation (ar5212 HAL)

Also a couple of other additional functions would be very helpful:

- A HAL method to fetch the default radar parameters for the chip
- Modify dfs_null to fetch the default radar parameters and disable fast diversity.
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
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