From 6036c2845650d26a15b44498f8fb8f8f4518847a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 11 Jun 2014 16:18:09 +0530 Subject: [PATCH] ath9k: Implement mgd_prepare_tx Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 3 ++ drivers/net/wireless/ath/ath9k/channel.c | 50 ++++++++++++++++++++---- drivers/net/wireless/ath/ath9k/main.c | 1 + 3 files changed, 46 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index a4646a076099..7947909918bd 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -357,6 +357,7 @@ enum ath_chanctx_state { ATH_CHANCTX_STATE_WAIT_FOR_BEACON, ATH_CHANCTX_STATE_WAIT_FOR_TIMER, ATH_CHANCTX_STATE_SWITCH, + ATH_CHANCTX_STATE_FORCE_ACTIVE, }; struct ath_chanctx_sched { @@ -397,6 +398,8 @@ struct ath_offchannel { ctx++) void ath9k_fill_chanctx_ops(void); +void ath9k_chanctx_force_active(struct ieee80211_hw *hw, + struct ieee80211_vif *vif); static inline struct ath_chanctx * ath_chanctx_get(struct ieee80211_chanctx_conf *ctx) { diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c index 6ea806cc68fe..8d56b7961d7b 100644 --- a/drivers/net/wireless/ath/ath9k/channel.c +++ b/drivers/net/wireless/ath/ath9k/channel.c @@ -223,25 +223,20 @@ static bool ath_chanctx_defer_switch(struct ath_softc *sc) return true; } -void ath_chanctx_work(struct work_struct *work) +static void ath_chanctx_set_next(struct ath_softc *sc, bool force) { - struct ath_softc *sc = container_of(work, struct ath_softc, - chanctx_work); struct timespec ts; bool measure_time = false; bool send_ps = false; - mutex_lock(&sc->mutex); spin_lock_bh(&sc->chan_lock); if (!sc->next_chan) { spin_unlock_bh(&sc->chan_lock); - mutex_unlock(&sc->mutex); return; } - if (ath_chanctx_defer_switch(sc)) { + if (!force && ath_chanctx_defer_switch(sc)) { spin_unlock_bh(&sc->chan_lock); - mutex_unlock(&sc->mutex); return; } @@ -269,8 +264,9 @@ void ath_chanctx_work(struct work_struct *work) sc->cur_chan = sc->next_chan; sc->cur_chan->stopped = false; sc->next_chan = NULL; - sc->sched.state = ATH_CHANCTX_STATE_IDLE; sc->sched.offchannel_duration = 0; + if (sc->sched.state != ATH_CHANCTX_STATE_FORCE_ACTIVE) + sc->sched.state = ATH_CHANCTX_STATE_IDLE; spin_unlock_bh(&sc->chan_lock); @@ -286,6 +282,14 @@ void ath_chanctx_work(struct work_struct *work) ath_chanctx_send_ps_frame(sc, false); ath_offchannel_channel_change(sc); +} + +void ath_chanctx_work(struct work_struct *work) +{ + struct ath_softc *sc = container_of(work, struct ath_softc, + chanctx_work); + mutex_lock(&sc->mutex); + ath_chanctx_set_next(sc, false); mutex_unlock(&sc->mutex); } @@ -320,6 +324,36 @@ void ath_chanctx_init(struct ath_softc *sc) } +void ath9k_chanctx_force_active(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct ath_softc *sc = hw->priv; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_vif *avp = (struct ath_vif *) vif->drv_priv; + bool changed = false; + + if (!test_bit(ATH_OP_MULTI_CHANNEL, &common->op_flags)) + return; + + if (!avp->chanctx) + return; + + mutex_lock(&sc->mutex); + + spin_lock_bh(&sc->chan_lock); + if (sc->next_chan || (sc->cur_chan != avp->chanctx)) { + sc->next_chan = avp->chanctx; + changed = true; + } + sc->sched.state = ATH_CHANCTX_STATE_FORCE_ACTIVE; + spin_unlock_bh(&sc->chan_lock); + + if (changed) + ath_chanctx_set_next(sc, true); + + mutex_unlock(&sc->mutex); +} + void ath_chanctx_switch(struct ath_softc *sc, struct ath_chanctx *ctx, struct cfg80211_chan_def *chandef) { diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 0ba496d400d0..b8975f0700bf 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2553,6 +2553,7 @@ void ath9k_fill_chanctx_ops(void) ath9k_ops.change_chanctx = ath9k_change_chanctx; ath9k_ops.assign_vif_chanctx = ath9k_assign_vif_chanctx; ath9k_ops.unassign_vif_chanctx = ath9k_unassign_vif_chanctx; + ath9k_ops.mgd_prepare_tx = ath9k_chanctx_force_active; } struct ieee80211_ops ath9k_ops = { -- 2.20.1