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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: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -18,15 +18,10 @@
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#define ANI_H
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#define HAL_PROCESS_ANI 0x00000001
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#define ATH9K_RSSI_EP_MULTIPLIER (1<<7)
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#define DO_ANI(ah) (((ah)->proc_phyerr & HAL_PROCESS_ANI))
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#define HAL_EP_RND(x, mul) \
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((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
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#define BEACON_RSSI(ahp) \
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HAL_EP_RND(ahp->stats.ast_nodestats.ns_avgbrssi, \
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ATH9K_RSSI_EP_MULTIPLIER)
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#define BEACON_RSSI(ahp) (ahp->stats.ast_nodestats.ns_avgbrssi)
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#define ATH9K_ANI_OFDM_TRIG_HIGH 500
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#define ATH9K_ANI_OFDM_TRIG_LOW 200
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