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ath9k: add support for reporting per-chain signal strength

Forráskód böngészése 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau
2013-12-14 18:03:36 +01:00
committed by John W. Linville
szülő f40c460827
commit e45e91d881
6 fájl változott, egészen pontosan 46 új sor hozzáadva és 35 régi sor törölve
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25
drivers/net/wireless/ath/ath9k/recv.c
Fájl megtekintése

@@ -906,6 +906,7 @@ static void ath9k_process_rssi(struct ath_common *common,
struct ath_hw *ah = common->ah;
int last_rssi;
int rssi = rx_stats->rs_rssi;
int i, j;
/*
* RSSI is not available for subframes in an A-MPDU.
@@ -924,6 +925,20 @@ static void ath9k_process_rssi(struct ath_common *common,
return;
}
for (i = 0, j = 0; i < ARRAY_SIZE(rx_stats->rs_rssi_ctl); i++) {
s8 rssi;
if (!(ah->rxchainmask & BIT(i)))
continue;
rssi = rx_stats->rs_rssi_ctl[i];
if (rssi != ATH9K_RSSI_BAD) {
rxs->chains |= BIT(j);
rxs->chain_signal[j] = ah->noise + rssi;
}
j++;
}
/*
* Update Beacon RSSI, this is used by ANI.
*/
@@ -1073,14 +1088,14 @@ static int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
fft_sample_40.channel_type = chan_type;
if (chan_type == NL80211_CHAN_HT40PLUS) {
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ext0);
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]);
fft_sample_40.lower_noise = ah->noise;
fft_sample_40.upper_noise = ext_nf;
} else {
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ext0);
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]);
upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
fft_sample_40.lower_noise = ext_nf;
fft_sample_40.upper_noise = ah->noise;
@@ -1116,7 +1131,7 @@ static int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
fft_sample_20.tlv.length = __cpu_to_be16(length);
fft_sample_20.freq = __cpu_to_be16(freq);
fft_sample_20.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
fft_sample_20.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]);
fft_sample_20.noise = ah->noise;
mag_info = ((struct ath_ht20_mag_info *)radar_info) - 1;