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| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2018-04-16 13:56:17 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-04-24 20:33:02 +0300 |
| commit | b305a6ab02475f52ef604b36e4cecd3bf4aa5eb7 (patch) | |
| tree | 6cc4efa47af1e17075cfd80e131fef7ba5cd5d81 /drivers/net/wireless/mediatek/mt7601u/mt7601u.h | |
| parent | b9e5d4feb4fc0ec0823e5da3bdea1c01d38f448e (diff) | |
| download | talos-obmc-linux-b305a6ab02475f52ef604b36e4cecd3bf4aa5eb7.tar.gz talos-obmc-linux-b305a6ab02475f52ef604b36e4cecd3bf4aa5eb7.zip | |
mt7601u: use EWMA to calculate avg_rssi
avr_rssi is not calculated correctly as we do not divide result
by 256 (mt76 sum avg_rssi1 and avg_rssi2 and divide by 512).
However dividing by 256 will make avg_rssi almost the same as
last rssi value - not really an average. So use EWMA to calculate
avg_rssi. I've chosen weight_rcp=4 to convergence quicker on signal
strength changes.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt7601u/mt7601u.h')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt7601u/mt7601u.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt7601u/mt7601u.h b/drivers/net/wireless/mediatek/mt7601u/mt7601u.h index 9233744451a9..db317d8c1652 100644 --- a/drivers/net/wireless/mediatek/mt7601u/mt7601u.h +++ b/drivers/net/wireless/mediatek/mt7601u/mt7601u.h @@ -23,6 +23,7 @@ #include <linux/completion.h> #include <net/mac80211.h> #include <linux/debugfs.h> +#include <linux/average.h> #include "regs.h" @@ -138,6 +139,8 @@ enum { MT7601U_STATE_MORE_STATS, }; +DECLARE_EWMA(rssi, 10, 4); + /** * struct mt7601u_dev - adapter structure * @lock: protects @wcid->tx_rate. @@ -220,7 +223,7 @@ struct mt7601u_dev { s8 bcn_freq_off; u8 bcn_phy_mode; - int avg_rssi; /* starts at 0 and converges */ + struct ewma_rssi avg_rssi; u8 agc_save; |
