diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2022-01-15 00:16:45 +0000 |
|---|---|---|
| committer | Kalle Valo <quic_kvalo@quicinc.com> | 2022-01-19 10:49:16 +0200 |
| commit | 29696e0aa413b9d56558731aae3806d7cff48d36 (patch) | |
| tree | 523f207fafa368aed6f3aad4166a06d3d44e8063 /drivers/net/wireless/ath/wcn36xx/txrx.c | |
| parent | d6f2746691cb10e484f15ab9e44e2cc2ccf9bd86 (diff) | |
wcn36xx: Track SNR and RSSI for each RX frame
The BDs for each RX frame contain both the RSSI and SNR for the received
frame. If we track and store this information it can be useful to us in
get_survey() and potentially elsewhere.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220115001646.3981501-4-bryan.odonoghue@linaro.org
Diffstat (limited to 'drivers/net/wireless/ath/wcn36xx/txrx.c')
| -rw-r--r-- | drivers/net/wireless/ath/wcn36xx/txrx.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c index 425d388b4a4d..c04983718d02 100644 --- a/drivers/net/wireless/ath/wcn36xx/txrx.c +++ b/drivers/net/wireless/ath/wcn36xx/txrx.c @@ -271,6 +271,34 @@ static void __skb_queue_purge_irq(struct sk_buff_head *list) dev_kfree_skb_irq(skb); } +static void wcn36xx_update_survey(struct wcn36xx *wcn, int rssi, int snr, + int band, int freq) +{ + static struct ieee80211_channel *channel; + struct ieee80211_supported_band *sband; + int idx; + int i; + + idx = 0; + if (band == NL80211_BAND_5GHZ) + idx = wcn->hw->wiphy->bands[NL80211_BAND_2GHZ]->n_channels; + + sband = wcn->hw->wiphy->bands[band]; + channel = sband->channels; + + for (i = 0; i < sband->n_channels; i++, channel++) { + if (channel->center_freq == freq) { + idx += i; + break; + } + } + + spin_lock(&wcn->survey_lock); + wcn->chan_survey[idx].rssi = rssi; + wcn->chan_survey[idx].snr = snr; + spin_unlock(&wcn->survey_lock); +} + int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) { struct ieee80211_rx_status status; @@ -348,6 +376,9 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) status.freq = WCN36XX_CENTER_FREQ(wcn); } + wcn36xx_update_survey(wcn, status.signal, get_snr(bd), + status.band, status.freq); + if (bd->rate_id < ARRAY_SIZE(wcn36xx_rate_table)) { rate = &wcn36xx_rate_table[bd->rate_id]; status.encoding = rate->encoding; |