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Tue, 30 Nov 2010 17:47:32 +0530 From: Rajkumar Manoharan To: CC: , Rajkumar Manoharan Subject: [PATCH 2/3 v3] ath9k: Add change_interface callback Date: Tue, 30 Nov 2010 17:47:32 +0530 Message-ID: <1291119452-12355-1-git-send-email-rmanoharan@atheros.com> X-Mailer: git-send-email 1.7.3.2 MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Tue, 30 Nov 2010 12:18:09 +0000 (UTC) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index eabde4d..73d5d43 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1428,13 +1428,79 @@ out: return ret; } +static void ath9k_reclaim_beacon(struct ath_softc *sc, + struct ieee80211_vif *vif) +{ + struct ath_vif *avp = (void *)vif->drv_priv; + + /* Disable SWBA interrupt */ + sc->sc_ah->imask &= ~ATH9K_INT_SWBA; + ath9k_ps_wakeup(sc); + ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); + ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); + tasklet_kill(&sc->bcon_tasklet); + ath9k_ps_restore(sc); + + ath_beacon_return(sc, avp); + sc->sc_flags &= ~SC_OP_BEACONS; + + if (sc->nbcnvifs > 0) { + /* Re-enable beaconing */ + sc->sc_ah->imask |= ATH9K_INT_SWBA; + ath9k_ps_wakeup(sc); + ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); + ath9k_ps_restore(sc); + } +} + +static int ath9k_change_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + enum nl80211_iftype new_type, + bool p2p) +{ + struct ath_wiphy *aphy = hw->priv; + struct ath_softc *sc = aphy->sc; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + + ath_print(common, ATH_DBG_CONFIG, "Change Interface\n"); + mutex_lock(&sc->mutex); + + switch (new_type) { + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_ADHOC: + if (sc->nbcnvifs >= ATH_BCBUF) { + ath_print(common, ATH_DBG_FATAL, + "No beacon slot available\n"); + return -ENOBUFS; + } + break; + case NL80211_IFTYPE_STATION: + /* Stop ANI */ + sc->sc_flags &= ~SC_OP_ANI_RUN; + del_timer_sync(&common->ani.timer); + if ((vif->type == NL80211_IFTYPE_AP) || + (vif->type == NL80211_IFTYPE_ADHOC)) + ath9k_reclaim_beacon(sc, vif); + break; + default: + ath_print(common, ATH_DBG_FATAL, + "Interface type %d not yet supported\n", vif->type); + mutex_unlock(&sc->mutex); + return -ENOTSUPP; + } + vif->type = new_type; + vif->p2p = p2p; + + mutex_unlock(&sc->mutex); + return 0; +} + static void ath9k_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct ath_wiphy *aphy = hw->priv; struct ath_softc *sc = aphy->sc; struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_vif *avp = (void *)vif->drv_priv; ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); @@ -1447,26 +1513,8 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, /* Reclaim beacon resources */ if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || - (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { - /* Disable SWBA interrupt */ - sc->sc_ah->imask &= ~ATH9K_INT_SWBA; - ath9k_ps_wakeup(sc); - ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); - ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); - ath9k_ps_restore(sc); - tasklet_kill(&sc->bcon_tasklet); - } - - ath_beacon_return(sc, avp); - sc->sc_flags &= ~SC_OP_BEACONS; - - if (sc->nbcnvifs) { - /* Re-enable SWBA interrupt */ - sc->sc_ah->imask |= ATH9K_INT_SWBA; - ath9k_ps_wakeup(sc); - ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); - ath9k_ps_restore(sc); - } + (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) + ath9k_reclaim_beacon(sc, vif); sc->nvifs--; @@ -2115,6 +2163,7 @@ struct ieee80211_ops ath9k_ops = { .start = ath9k_start, .stop = ath9k_stop, .add_interface = ath9k_add_interface, + .change_interface = ath9k_change_interface, .remove_interface = ath9k_remove_interface, .config = ath9k_config, .configure_filter = ath9k_configure_filter,