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Commit ff360416 authored by Vasanthakumar Thiagarajan's avatar Vasanthakumar Thiagarajan Committed by John W. Linville
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ath9k: Fix bug in retrieving average beacon rssi 



Currently the beacon rssi that LPF gives is divided and rounded
up by ATH_RSSI_EP_MULTIPLIER twice. This will leave the incorrect rssi
in ANI. Having correct rssi in ANI fixes the connection stability at
< 30dB rssi range. This patch removes the unncessary computation of average
rssi over already valid average rssi. Also removes the redundant macros to
find average rssi.

Signed-off-by: default avatarVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 035d0243

drivers/net/wireless/ath/ath9k/ani.h

+1 −6
Original line number Diff line number Diff line
@@ -18,15 +18,10 @@ 
#define ANI_H



#define HAL_PROCESS_ANI           0x00000001

#define ATH9K_RSSI_EP_MULTIPLIER  (1<<7)



#define DO_ANI(ah) (((ah)->proc_phyerr & HAL_PROCESS_ANI))



#define HAL_EP_RND(x, mul)						\

	((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))

#define BEACON_RSSI(ahp)					\

	HAL_EP_RND(ahp->stats.ast_nodestats.ns_avgbrssi,	\

		   ATH9K_RSSI_EP_MULTIPLIER)

#define BEACON_RSSI(ahp) (ahp->stats.ast_nodestats.ns_avgbrssi)



#define ATH9K_ANI_OFDM_TRIG_HIGH          500

#define ATH9K_ANI_OFDM_TRIG_LOW           200