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ath9k: implement tx_last_beacon() to allow mac80211 to respond to probe requests in ad-hoc mode without creating too much spam

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SVN-Revision: 26923
This commit is contained in:
Felix Fietkau 2011-05-17 11:14:15 +00:00
parent 4deecea26b
commit 888bee4ef2
1 changed files with 106 additions and 0 deletions
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106
package/mac80211/patches/572-ath9k_tx_last_beacon.patch Normal file
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@ -0,0 +1,106 @@
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -397,6 +397,9 @@ struct ath_beacon {
struct ath_descdma bdma;
struct ath_txq *cabq;
struct list_head bbuf;
+
+ bool tx_processed;
+ bool tx_last;
};
void ath_beacon_tasklet(unsigned long data);
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -18,6 +18,12 @@
#define FUDGE 2
+static void ath9k_reset_beacon_status(struct ath_softc *sc)
+{
+ sc->beacon.tx_processed = false;
+ sc->beacon.tx_last = false;
+}
+
/*
* This function will modify certain transmit queue properties depending on
* the operating mode of the station (AP or AdHoc). Parameters are AIFS
@@ -72,6 +78,8 @@ static void ath_beacon_setup(struct ath_
struct ieee80211_supported_band *sband;
u8 rate = 0;
+ ath9k_reset_beacon_status(sc);
+
ds = bf->bf_desc;
flags = ATH9K_TXDESC_NOACK;
@@ -134,6 +142,8 @@ static struct ath_buf *ath_beacon_genera
struct ieee80211_tx_info *info;
int cabq_depth;
+ ath9k_reset_beacon_status(sc);
+
avp = (void *)vif->drv_priv;
cabq = sc->beacon.cabq;
@@ -644,6 +654,8 @@ static void ath_beacon_config_adhoc(stru
struct ath_common *common = ath9k_hw_common(ah);
u32 tsf, delta, intval, nexttbtt;
+ ath9k_reset_beacon_status(sc);
+
tsf = ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE);
intval = TU_TO_USEC(conf->beacon_interval & ATH9K_BEACON_PERIOD);
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2314,6 +2314,43 @@ static bool ath9k_tx_frames_pending(stru
return false;
}
+int ath9k_tx_last_beacon(struct ieee80211_hw *hw)
+{
+ struct ath_softc *sc = hw->priv;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ieee80211_vif *vif;
+ struct ath_vif *avp;
+ struct ath_buf *bf;
+ struct ath_tx_status ts;
+ int status;
+
+ if (ah->opmode != NL80211_IFTYPE_ADHOC)
+ return 0;
+
+ vif = sc->beacon.bslot[0];
+ if (!vif)
+ return 0;
+
+ avp = (void *)vif->drv_priv;
+ if (!avp->is_bslot_active)
+ return 0;
+
+ if (!sc->beacon.tx_processed) {
+ bf = avp->av_bcbuf;
+ if (!bf || !bf->bf_mpdu)
+ return 0;
+
+ status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts);
+ if (status == -EINPROGRESS)
+ return 0;
+
+ sc->beacon.tx_processed = true;
+ sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_FILT);
+ }
+
+ return sc->beacon.tx_last;
+}
+
struct ieee80211_ops ath9k_ops = {
.tx = ath9k_tx,
.start = ath9k_start,
@@ -2338,4 +2375,5 @@ struct ieee80211_ops ath9k_ops = {
.set_coverage_class = ath9k_set_coverage_class,
.flush = ath9k_flush,
.tx_frames_pending = ath9k_tx_frames_pending,
+ .tx_last_beacon = ath9k_tx_last_beacon,
};