You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
2.4 KiB
77 lines
2.4 KiB
![]()
10 years ago
|
From: Zefir Kurtisi <zefir.kurtisi@neratec.com>
|
||
|
Date: Tue, 10 Mar 2015 17:49:30 +0100
|
||
|
Subject: [PATCH] ath9k: add DFS support for extension channel
|
||
|
|
||
|
In HT40 modes, pulse events on primary and extension
|
||
|
channel are processed individually. If valid, a pulse
|
||
|
event will be fed into the detector
|
||
|
* for primary frequency, or
|
||
|
* for extension frequency (+/-20MHz based on HT40-mode)
|
||
|
* or both
|
||
|
|
||
|
With that, a 40MHz radar will result in two individual
|
||
|
radar events.
|
||
|
|
||
|
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
|
||
|
---
|
||
|
|
||
|
--- a/drivers/net/wireless/ath/ath9k/dfs.c
|
||
|
+++ b/drivers/net/wireless/ath/ath9k/dfs.c
|
||
|
@@ -126,8 +126,19 @@ ath9k_postprocess_radar_event(struct ath
|
||
|
DFS_STAT_INC(sc, pulses_detected);
|
||
|
return true;
|
||
|
}
|
||
|
-#undef PRI_CH_RADAR_FOUND
|
||
|
-#undef EXT_CH_RADAR_FOUND
|
||
|
+
|
||
|
+static void
|
||
|
+ath9k_dfs_process_radar_pulse(struct ath_softc *sc, struct pulse_event *pe)
|
||
|
+{
|
||
|
+ struct dfs_pattern_detector *pd = sc->dfs_detector;
|
||
|
+ DFS_STAT_INC(sc, pulses_processed);
|
||
|
+ if (pd == NULL)
|
||
|
+ return;
|
||
|
+ if (!pd->add_pulse(pd, pe))
|
||
|
+ return;
|
||
|
+ DFS_STAT_INC(sc, radar_detected);
|
||
|
+ ieee80211_radar_detected(sc->hw);
|
||
|
+}
|
||
|
|
||
|
/*
|
||
|
* DFS: check PHY-error for radar pulse and feed the detector
|
||
|
@@ -176,18 +187,21 @@ void ath9k_dfs_process_phyerr(struct ath
|
||
|
ard.pulse_length_pri = vdata_end[-3];
|
||
|
pe.freq = ah->curchan->channel;
|
||
|
pe.ts = mactime;
|
||
|
- if (ath9k_postprocess_radar_event(sc, &ard, &pe)) {
|
||
|
- struct dfs_pattern_detector *pd = sc->dfs_detector;
|
||
|
- ath_dbg(common, DFS,
|
||
|
- "ath9k_dfs_process_phyerr: channel=%d, ts=%llu, "
|
||
|
- "width=%d, rssi=%d, delta_ts=%llu\n",
|
||
|
- pe.freq, pe.ts, pe.width, pe.rssi,
|
||
|
- pe.ts - sc->dfs_prev_pulse_ts);
|
||
|
- sc->dfs_prev_pulse_ts = pe.ts;
|
||
|
- DFS_STAT_INC(sc, pulses_processed);
|
||
|
- if (pd != NULL && pd->add_pulse(pd, &pe)) {
|
||
|
- DFS_STAT_INC(sc, radar_detected);
|
||
|
- ieee80211_radar_detected(sc->hw);
|
||
|
- }
|
||
|
+ if (!ath9k_postprocess_radar_event(sc, &ard, &pe))
|
||
|
+ return;
|
||
|
+
|
||
|
+ ath_dbg(common, DFS,
|
||
|
+ "ath9k_dfs_process_phyerr: type=%d, freq=%d, ts=%llu, "
|
||
|
+ "width=%d, rssi=%d, delta_ts=%llu\n",
|
||
|
+ ard.pulse_bw_info, pe.freq, pe.ts, pe.width, pe.rssi,
|
||
|
+ pe.ts - sc->dfs_prev_pulse_ts);
|
||
|
+ sc->dfs_prev_pulse_ts = pe.ts;
|
||
|
+ if (ard.pulse_bw_info & PRI_CH_RADAR_FOUND)
|
||
|
+ ath9k_dfs_process_radar_pulse(sc, &pe);
|
||
|
+ if (ard.pulse_bw_info & EXT_CH_RADAR_FOUND) {
|
||
|
+ pe.freq += IS_CHAN_HT40PLUS(ah->curchan) ? 20 : -20;
|
||
|
+ ath9k_dfs_process_radar_pulse(sc, &pe);
|
||
|
}
|
||
|
}
|
||
|
+#undef PRI_CH_RADAR_FOUND
|
||
|
+#undef EXT_CH_RADAR_FOUND
|