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authorRajkumar Manoharan <rmanohar@qti.qualcomm.com>2014-06-11 16:18:05 +0530
committerJohn W. Linville <linville@tuxdriver.com>2014-06-19 15:49:19 -0400
commitea6ff2de5c56f6b0c08717f6cc47281b52504e81 (patch)
treee7428391d5f4cbbdc310a073001bc2ad772b8c17 /drivers/net/wireless/ath
parent748299f27b21c23ba963df4768abb2344fe6e9a7 (diff)
ath9k: Store current offchannel duration
Update current offchannel duration during scan or roc request. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c28
2 files changed, 20 insertions, 9 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index b657115d1eb7..6487c4769af4 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -385,6 +385,7 @@ struct ath_offchannel {
struct ieee80211_channel *roc_chan;
struct ieee80211_vif *roc_vif;
int roc_duration;
+ int duration;
};
#define ath_for_each_chanctx(_sc, _ctx) \
for (ctx = &sc->chanctx[0]; \
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 2393af058afe..0ba496d400d0 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2171,6 +2171,17 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
clear_bit(ATH_OP_SCANNING, &common->op_flags);
}
+static int ath_scan_channel_duration(struct ath_softc *sc,
+ struct ieee80211_channel *chan)
+{
+ struct cfg80211_scan_request *req = sc->offchannel.scan_req;
+
+ if (!req->n_ssids || (chan->flags & IEEE80211_CHAN_NO_IR))
+ return (HZ / 9); /* ~110 ms */
+
+ return (HZ / 16); /* ~60 ms */
+}
+
static void
ath_scan_next_channel(struct ath_softc *sc)
{
@@ -2185,6 +2196,7 @@ ath_scan_next_channel(struct ath_softc *sc)
}
chan = req->channels[sc->offchannel.scan_idx++];
+ sc->offchannel.duration = ath_scan_channel_duration(sc, chan);
sc->offchannel.state = ATH_OFFCHANNEL_PROBE_SEND;
ath_chanctx_offchan_switch(sc, chan);
}
@@ -2200,6 +2212,7 @@ static void ath_offchannel_next(struct ath_softc *sc)
} else if (sc->offchannel.roc_vif) {
vif = sc->offchannel.roc_vif;
sc->offchannel.chan.txpower = vif->bss_conf.txpower;
+ sc->offchannel.duration = sc->offchannel.roc_duration;
sc->offchannel.state = ATH_OFFCHANNEL_ROC_START;
ath_chanctx_offchan_switch(sc, sc->offchannel.roc_chan);
} else {
@@ -2275,20 +2288,17 @@ error:
static void ath_scan_channel_start(struct ath_softc *sc)
{
struct cfg80211_scan_request *req = sc->offchannel.scan_req;
- int i, dwell;
-
- if ((sc->cur_chan->chandef.chan->flags & IEEE80211_CHAN_NO_IR) ||
- !req->n_ssids) {
- dwell = HZ / 9; /* ~110 ms */
- } else {
- dwell = HZ / 16; /* ~60 ms */
+ int i;
+ if (!(sc->cur_chan->chandef.chan->flags & IEEE80211_CHAN_NO_IR) &&
+ req->n_ssids) {
for (i = 0; i < req->n_ssids; i++)
ath_scan_send_probe(sc, &req->ssids[i]);
+
}
sc->offchannel.state = ATH_OFFCHANNEL_PROBE_WAIT;
- mod_timer(&sc->offchannel.timer, jiffies + dwell);
+ mod_timer(&sc->offchannel.timer, jiffies + sc->offchannel.duration);
}
void ath_offchannel_channel_change(struct ath_softc *sc)
@@ -2316,7 +2326,7 @@ void ath_offchannel_channel_change(struct ath_softc *sc)
sc->offchannel.state = ATH_OFFCHANNEL_ROC_WAIT;
mod_timer(&sc->offchannel.timer, jiffies +
- msecs_to_jiffies(sc->offchannel.roc_duration));
+ msecs_to_jiffies(sc->offchannel.duration));
ieee80211_ready_on_channel(sc->hw);
break;
case ATH_OFFCHANNEL_ROC_DONE: