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wcn36xx: Implement get_snr()

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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: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220115001646.3981501-2-bryan.odonoghue@linaro.org
This commit is contained in:
Bryan O'Donoghue 2022-01-15 00:16:43 +00:00 • committed by Kalle Valo
parent 6bae9de622
commit 039d5d4db4
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/ath/wcn36xx/txrx.c
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@ -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;