From dfcbb3e8f4992b9f618cbe03a0ce90f704135ebf Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Fri, 22 Aug 2014 20:39:26 +0530 Subject: [PATCH] ath9k: Move channel operations to channel.c This reduces clutter in main.c Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 3 + drivers/net/wireless/ath/ath9k/channel.c | 202 +++++++++++++++++++++++++++++++ drivers/net/wireless/ath/ath9k/main.c | 202 ------------------------------- 3 files changed, 205 insertions(+), 202 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 7fc13a8..17b198e 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -432,6 +432,9 @@ struct ath_chanctx *ath_chanctx_get_oper_chan(struct ath_softc *sc, void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif, enum ath_chanctx_event ev); void ath_chanctx_timer(unsigned long data); +void ath_offchannel_next(struct ath_softc *sc); +void ath_scan_complete(struct ath_softc *sc, bool abort); +void ath_roc_complete(struct ath_softc *sc, bool abort); int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan); int ath_startrecv(struct ath_softc *sc); diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c index ba214eb..0ce9e40 100644 --- a/drivers/net/wireless/ath/ath9k/channel.c +++ b/drivers/net/wireless/ath/ath9k/channel.c @@ -683,3 +683,205 @@ void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif, spin_unlock_bh(&sc->chan_lock); } + +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) +{ + struct cfg80211_scan_request *req = sc->offchannel.scan_req; + struct ieee80211_channel *chan; + + if (sc->offchannel.scan_idx >= req->n_channels) { + sc->offchannel.state = ATH_OFFCHANNEL_IDLE; + ath_chanctx_switch(sc, ath_chanctx_get_oper_chan(sc, false), + NULL); + return; + } + + 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); +} + +void ath_offchannel_next(struct ath_softc *sc) +{ + struct ieee80211_vif *vif; + + if (sc->offchannel.scan_req) { + vif = sc->offchannel.scan_vif; + sc->offchannel.chan.txpower = vif->bss_conf.txpower; + ath_scan_next_channel(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 { + ath_chanctx_switch(sc, ath_chanctx_get_oper_chan(sc, false), + NULL); + sc->offchannel.state = ATH_OFFCHANNEL_IDLE; + if (sc->ps_idle) + ath_cancel_work(sc); + } +} + +void ath_roc_complete(struct ath_softc *sc, bool abort) +{ + sc->offchannel.roc_vif = NULL; + sc->offchannel.roc_chan = NULL; + if (!abort) + ieee80211_remain_on_channel_expired(sc->hw); + ath_offchannel_next(sc); + ath9k_ps_restore(sc); +} + +void ath_scan_complete(struct ath_softc *sc, bool abort) +{ + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + + sc->offchannel.scan_req = NULL; + sc->offchannel.scan_vif = NULL; + sc->offchannel.state = ATH_OFFCHANNEL_IDLE; + ieee80211_scan_completed(sc->hw, abort); + clear_bit(ATH_OP_SCANNING, &common->op_flags); + ath_offchannel_next(sc); + ath9k_ps_restore(sc); +} + +static void ath_scan_send_probe(struct ath_softc *sc, + struct cfg80211_ssid *ssid) +{ + struct cfg80211_scan_request *req = sc->offchannel.scan_req; + struct ieee80211_vif *vif = sc->offchannel.scan_vif; + struct ath_tx_control txctl = {}; + struct sk_buff *skb; + struct ieee80211_tx_info *info; + int band = sc->offchannel.chan.chandef.chan->band; + + skb = ieee80211_probereq_get(sc->hw, vif, + ssid->ssid, ssid->ssid_len, req->ie_len); + if (!skb) + return; + + info = IEEE80211_SKB_CB(skb); + if (req->no_cck) + info->flags |= IEEE80211_TX_CTL_NO_CCK_RATE; + + if (req->ie_len) + memcpy(skb_put(skb, req->ie_len), req->ie, req->ie_len); + + skb_set_queue_mapping(skb, IEEE80211_AC_VO); + + if (!ieee80211_tx_prepare_skb(sc->hw, vif, skb, band, NULL)) + goto error; + + txctl.txq = sc->tx.txq_map[IEEE80211_AC_VO]; + txctl.force_channel = true; + if (ath_tx_start(sc->hw, skb, &txctl)) + goto error; + + return; + +error: + ieee80211_free_txskb(sc->hw, skb); +} + +static void ath_scan_channel_start(struct ath_softc *sc) +{ + struct cfg80211_scan_request *req = sc->offchannel.scan_req; + 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 + sc->offchannel.duration); +} + +void ath_offchannel_channel_change(struct ath_softc *sc) +{ + switch (sc->offchannel.state) { + case ATH_OFFCHANNEL_PROBE_SEND: + if (!sc->offchannel.scan_req) + return; + + if (sc->cur_chan->chandef.chan != + sc->offchannel.chan.chandef.chan) + return; + + ath_scan_channel_start(sc); + break; + case ATH_OFFCHANNEL_IDLE: + if (!sc->offchannel.scan_req) + return; + + ath_scan_complete(sc, false); + break; + case ATH_OFFCHANNEL_ROC_START: + if (sc->cur_chan != &sc->offchannel.chan) + break; + + sc->offchannel.state = ATH_OFFCHANNEL_ROC_WAIT; + mod_timer(&sc->offchannel.timer, jiffies + + msecs_to_jiffies(sc->offchannel.duration)); + ieee80211_ready_on_channel(sc->hw); + break; + case ATH_OFFCHANNEL_ROC_DONE: + ath_roc_complete(sc, false); + break; + default: + break; + } +} + +void ath_offchannel_timer(unsigned long data) +{ + struct ath_softc *sc = (struct ath_softc *)data; + struct ath_chanctx *ctx; + + switch (sc->offchannel.state) { + case ATH_OFFCHANNEL_PROBE_WAIT: + if (!sc->offchannel.scan_req) + return; + + /* get first active channel context */ + ctx = ath_chanctx_get_oper_chan(sc, true); + if (ctx->active) { + sc->offchannel.state = ATH_OFFCHANNEL_SUSPEND; + ath_chanctx_switch(sc, ctx, NULL); + mod_timer(&sc->offchannel.timer, jiffies + HZ / 10); + break; + } + /* fall through */ + case ATH_OFFCHANNEL_SUSPEND: + if (!sc->offchannel.scan_req) + return; + + ath_scan_next_channel(sc); + break; + case ATH_OFFCHANNEL_ROC_START: + case ATH_OFFCHANNEL_ROC_WAIT: + ctx = ath_chanctx_get_oper_chan(sc, false); + sc->offchannel.state = ATH_OFFCHANNEL_ROC_DONE; + ath_chanctx_switch(sc, ctx, NULL); + break; + default: + break; + } +} diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index e6ac8d2..b1d15f3 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2207,208 +2207,6 @@ 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) -{ - struct cfg80211_scan_request *req = sc->offchannel.scan_req; - struct ieee80211_channel *chan; - - if (sc->offchannel.scan_idx >= req->n_channels) { - sc->offchannel.state = ATH_OFFCHANNEL_IDLE; - ath_chanctx_switch(sc, ath_chanctx_get_oper_chan(sc, false), - NULL); - return; - } - - 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); -} - -static void ath_offchannel_next(struct ath_softc *sc) -{ - struct ieee80211_vif *vif; - - if (sc->offchannel.scan_req) { - vif = sc->offchannel.scan_vif; - sc->offchannel.chan.txpower = vif->bss_conf.txpower; - ath_scan_next_channel(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 { - ath_chanctx_switch(sc, ath_chanctx_get_oper_chan(sc, false), - NULL); - sc->offchannel.state = ATH_OFFCHANNEL_IDLE; - if (sc->ps_idle) - ath_cancel_work(sc); - } -} - -static void ath_roc_complete(struct ath_softc *sc, bool abort) -{ - sc->offchannel.roc_vif = NULL; - sc->offchannel.roc_chan = NULL; - if (!abort) - ieee80211_remain_on_channel_expired(sc->hw); - ath_offchannel_next(sc); - ath9k_ps_restore(sc); -} - -static void ath_scan_complete(struct ath_softc *sc, bool abort) -{ - struct ath_common *common = ath9k_hw_common(sc->sc_ah); - - sc->offchannel.scan_req = NULL; - sc->offchannel.scan_vif = NULL; - sc->offchannel.state = ATH_OFFCHANNEL_IDLE; - ieee80211_scan_completed(sc->hw, abort); - clear_bit(ATH_OP_SCANNING, &common->op_flags); - ath_offchannel_next(sc); - ath9k_ps_restore(sc); -} - -static void ath_scan_send_probe(struct ath_softc *sc, - struct cfg80211_ssid *ssid) -{ - struct cfg80211_scan_request *req = sc->offchannel.scan_req; - struct ieee80211_vif *vif = sc->offchannel.scan_vif; - struct ath_tx_control txctl = {}; - struct sk_buff *skb; - struct ieee80211_tx_info *info; - int band = sc->offchannel.chan.chandef.chan->band; - - skb = ieee80211_probereq_get(sc->hw, vif, - ssid->ssid, ssid->ssid_len, req->ie_len); - if (!skb) - return; - - info = IEEE80211_SKB_CB(skb); - if (req->no_cck) - info->flags |= IEEE80211_TX_CTL_NO_CCK_RATE; - - if (req->ie_len) - memcpy(skb_put(skb, req->ie_len), req->ie, req->ie_len); - - skb_set_queue_mapping(skb, IEEE80211_AC_VO); - - if (!ieee80211_tx_prepare_skb(sc->hw, vif, skb, band, NULL)) - goto error; - - txctl.txq = sc->tx.txq_map[IEEE80211_AC_VO]; - txctl.force_channel = true; - if (ath_tx_start(sc->hw, skb, &txctl)) - goto error; - - return; - -error: - ieee80211_free_txskb(sc->hw, skb); -} - -static void ath_scan_channel_start(struct ath_softc *sc) -{ - struct cfg80211_scan_request *req = sc->offchannel.scan_req; - 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 + sc->offchannel.duration); -} - -void ath_offchannel_channel_change(struct ath_softc *sc) -{ - switch (sc->offchannel.state) { - case ATH_OFFCHANNEL_PROBE_SEND: - if (!sc->offchannel.scan_req) - return; - - if (sc->cur_chan->chandef.chan != - sc->offchannel.chan.chandef.chan) - return; - - ath_scan_channel_start(sc); - break; - case ATH_OFFCHANNEL_IDLE: - if (!sc->offchannel.scan_req) - return; - - ath_scan_complete(sc, false); - break; - case ATH_OFFCHANNEL_ROC_START: - if (sc->cur_chan != &sc->offchannel.chan) - break; - - sc->offchannel.state = ATH_OFFCHANNEL_ROC_WAIT; - mod_timer(&sc->offchannel.timer, jiffies + - msecs_to_jiffies(sc->offchannel.duration)); - ieee80211_ready_on_channel(sc->hw); - break; - case ATH_OFFCHANNEL_ROC_DONE: - ath_roc_complete(sc, false); - break; - default: - break; - } -} - -void ath_offchannel_timer(unsigned long data) -{ - struct ath_softc *sc = (struct ath_softc *)data; - struct ath_chanctx *ctx; - - switch (sc->offchannel.state) { - case ATH_OFFCHANNEL_PROBE_WAIT: - if (!sc->offchannel.scan_req) - return; - - /* get first active channel context */ - ctx = ath_chanctx_get_oper_chan(sc, true); - if (ctx->active) { - sc->offchannel.state = ATH_OFFCHANNEL_SUSPEND; - ath_chanctx_switch(sc, ctx, NULL); - mod_timer(&sc->offchannel.timer, jiffies + HZ / 10); - break; - } - /* fall through */ - case ATH_OFFCHANNEL_SUSPEND: - if (!sc->offchannel.scan_req) - return; - - ath_scan_next_channel(sc); - break; - case ATH_OFFCHANNEL_ROC_START: - case ATH_OFFCHANNEL_ROC_WAIT: - ctx = ath_chanctx_get_oper_chan(sc, false); - sc->offchannel.state = ATH_OFFCHANNEL_ROC_DONE; - ath_chanctx_switch(sc, ctx, NULL); - break; - default: - break; - } -} - static int ath9k_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_scan_request *hw_req) { -- 2.7.4