ath9k: implement tx_last_beacon() to allow mac80211 to respond to probe requests...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26923 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mac80211/patches/572-ath9k_tx_last_beacon.patch b/package/mac80211/patches/572-ath9k_tx_last_beacon.patch
new file mode 100644 (file)
index 0000000..4f4c3b8
--- /dev/null
+++ b/package/mac80211/patches/572-ath9k_tx_last_beacon.patch
@@ -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,
+ };