Commit 039d5d4d authored by Bryan O'Donoghue's avatar Bryan O'Donoghue Committed by Kalle Valo
Browse files

wcn36xx: Implement get_snr() 



The wcn36xx BD phy descriptor returns both Received Signal Strength
Information (RSSI) and Signal To Noise Ratio (SNR) with each delivered BD.

The macro to extract this data is a simple-one liner, easily imported from
prima driver. This data will be useful to us when implementing
mac80211-ops->get_survey().

Signed-off-by: default avatarBryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: default avatarLoic Poulain <loic.poulain@linaro.org>
Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220115001646.3981501-2-bryan.odonoghue@linaro.org
parent 6bae9de6

drivers/net/wireless/ath/wcn36xx/txrx.c

+5 −0
Original line number Diff line number Diff line
@@ -23,6 +23,11 @@ static inline int get_rssi0(struct wcn36xx_rx_bd *bd) 
	return 100 - ((bd->phy_stat0 >> 24) & 0xff);

}



static inline int get_snr(struct wcn36xx_rx_bd *bd)

{

	return ((bd->phy_stat1 >> 24) & 0xff);

}



struct wcn36xx_rate {

	u16 bitrate;

	u16 mcs_or_legacy_index;