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Re: [PATCH 0/4] Fix the way ANI is being disabled for ar9100 and ar9340

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Hi,

2011/11/21 Mohammed Shafi <shafi.wireless@xxxxxxxxx>:

>>  Question: there are common.disable_ani (and corresponding debugfs file) and config.enable_ani in ath9k code. config.enable_ani sets if ANI is supported and common.disable_ani is meant to disable calibration. This is confusing on a sense that disable_ani completely disables all calibration code including short/long calibration and ANI, not ANI alone. Would it make sense to rename disable_ani to disable_calib and enable_ani to ani_supported?
>
> I understand short and long calibration of ANI, not the complete calibration :)
> disable_ani is to stop/start ANI anytime via ath9k debugfs entry.
> please let me know if you have further queries

  I'm new to this code so I hope you'll forgive me if my question
sounds stupidly.
  There is 'ath_ani_calibrate' which basically does three things
(apart from timer management boilerplate):
   -- calls ath9k_hw_calibrate to perform 'long calibration'
   -- calls ath9k_hw_calibrate to perform 'short calibration'
   -- calls ath9k_hw_ani_monitor to get ANI statistics (?)
  So there seem to be three major parts of ANI: long calibration,
short calibration, and third thing which I find hard to name correctly
so I'll refer to it as 'ANI-ANI'.

  From your response I understand that 'short calibration' and 'long
calibration' generally considered to be part of think called ANI.
Considering this name 'disable_ani' in a sense that it disables
'ath_ani_calibrate' as a whole looks ok.
  But config.enable_ani is used to control if 'ANI-ANI' gets executed
(and this was somewhat true before my patch).
  So, having two variables which 'negated' names is confusing by
itself, i.e. enable_ani vs disable_ani. But more confusing is the fact
that they actually control different things and have different
meaning, so disable_ani != (!enable_ani).

  I do understand that my 'ANI-ANI' probably has proper name and I
think that 'enable_ani' should probably be renamed using this proper
name.

  I'd really appreciate if you could let me know where my
understanding is incorrect.
  Thanks!

-- 
Truthfully yours,
Martynov Nikolay.
Email: mar.kolya@xxxxxxxxx
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