diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/beacon.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/beacon.c | 97 |
1 files changed, 84 insertions, 13 deletions
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index e387f0b..eaf8f05 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -80,7 +80,7 @@ static void ath9k_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif, u8 chainmask = ah->txchainmask; u8 rate = 0; - sband = &common->sbands[common->hw->conf.chandef.chan->band]; + sband = &common->sbands[sc->cur_chandef.chan->band]; rate = sband->bitrates[rateidx].hw_value; if (vif->bss_conf.use_short_preamble) rate |= sband->bitrates[rateidx].hw_value_short; @@ -108,6 +108,55 @@ static void ath9k_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif, ath9k_hw_set_txdesc(ah, bf->bf_desc, &info); } +static void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp, + struct sk_buff *skb) +{ + static const u8 noa_ie_hdr[] = { + WLAN_EID_VENDOR_SPECIFIC, /* type */ + 0, /* length */ + 0x50, 0x6f, 0x9a, /* WFA OUI */ + 0x09, /* P2P subtype */ + 0x0c, /* Notice of Absence */ + 0x00, /* LSB of little-endian len */ + 0x00, /* MSB of little-endian len */ + }; + + struct ieee80211_p2p_noa_attr *noa; + int noa_len, noa_desc, i = 0; + u8 *hdr; + + if (!avp->offchannel_duration && !avp->periodic_noa_duration) + return; + + noa_desc = !!avp->offchannel_duration + !!avp->periodic_noa_duration; + noa_len = 2 + sizeof(struct ieee80211_p2p_noa_desc) * noa_desc; + + hdr = skb_put(skb, sizeof(noa_ie_hdr)); + memcpy(hdr, noa_ie_hdr, sizeof(noa_ie_hdr)); + hdr[1] = sizeof(noa_ie_hdr) + noa_len - 2; + hdr[7] = noa_len; + + noa = (void *) skb_put(skb, noa_len); + memset(noa, 0, noa_len); + + noa->index = avp->noa_index; + if (avp->periodic_noa_duration) { + u32 interval = TU_TO_USEC(sc->cur_chan->beacon.beacon_interval); + + noa->desc[i].count = 255; + noa->desc[i].start_time = cpu_to_le32(avp->periodic_noa_start); + noa->desc[i].duration = cpu_to_le32(avp->periodic_noa_duration); + noa->desc[i].interval = cpu_to_le32(interval); + i++; + } + + if (avp->offchannel_duration) { + noa->desc[i].count = 1; + noa->desc[i].start_time = cpu_to_le32(avp->offchannel_start); + noa->desc[i].duration = cpu_to_le32(avp->offchannel_duration); + } +} + static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { @@ -155,6 +204,9 @@ static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw, hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); } + if (vif->p2p) + ath9k_beacon_add_noa(sc, avp, skb); + bf->bf_buf_addr = dma_map_single(sc->dev, skb->data, skb->len, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(sc->dev, bf->bf_buf_addr))) { @@ -249,7 +301,7 @@ void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif) static int ath9k_beacon_choose_slot(struct ath_softc *sc) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf; + struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon; u16 intval; u32 tsftu; u64 tsf; @@ -277,8 +329,8 @@ static int ath9k_beacon_choose_slot(struct ath_softc *sc) static void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf; struct ath_vif *avp = (void *)vif->drv_priv; + struct ath_beacon_config *cur_conf = &avp->chanctx->beacon; u32 tsfadjust; if (avp->av_bslot == 0) @@ -374,12 +426,19 @@ void ath9k_beacon_tasklet(unsigned long data) vif = sc->beacon.bslot[slot]; /* EDMA devices check that in the tx completion function. */ - if (!edma && ath9k_csa_is_finished(sc, vif)) - return; + if (!edma) { + if (sc->sched.beacon_pending) + ath_chanctx_event(sc, NULL, + ATH_CHANCTX_EVENT_BEACON_SENT); + + if (ath9k_csa_is_finished(sc, vif)) + return; + } if (!vif || !vif->bss_conf.enable_beacon) return; + ath_chanctx_event(sc, vif, ATH_CHANCTX_EVENT_BEACON_PREPARE); bf = ath9k_beacon_generate(sc->hw, vif); if (sc->beacon.bmisscnt != 0) { @@ -500,7 +559,6 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_vif *avp = (void *)vif->drv_priv; if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) { if ((vif->type != NL80211_IFTYPE_AP) || @@ -514,7 +572,7 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc, if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) { if ((vif->type == NL80211_IFTYPE_STATION) && test_bit(ATH_OP_BEACONS, &common->op_flags) && - !avp->primary_sta_vif) { + vif != sc->cur_chan->primary_sta) { ath_dbg(common, CONFIG, "Beacon already configured for a station interface\n"); return false; @@ -525,10 +583,11 @@ static bool ath9k_allow_beacon_config(struct ath_softc *sc, } static void ath9k_cache_beacon_config(struct ath_softc *sc, + struct ath_chanctx *ctx, struct ieee80211_bss_conf *bss_conf) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf; + struct ath_beacon_config *cur_conf = &ctx->beacon; ath_dbg(common, BEACON, "Caching beacon data for BSS: %pM\n", bss_conf->bssid); @@ -564,20 +623,29 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif, u32 changed) { struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; - struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); + struct ath_vif *avp = (void *)vif->drv_priv; + struct ath_chanctx *ctx = avp->chanctx; + struct ath_beacon_config *cur_conf; unsigned long flags; bool skip_beacon = false; + if (!ctx) + return; + + cur_conf = &avp->chanctx->beacon; if (vif->type == NL80211_IFTYPE_AP) ath9k_set_tsfadjust(sc, vif); if (!ath9k_allow_beacon_config(sc, vif)) return; - if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION) { - ath9k_cache_beacon_config(sc, bss_conf); + if (vif->type == NL80211_IFTYPE_STATION) { + ath9k_cache_beacon_config(sc, ctx, bss_conf); + if (ctx != sc->cur_chan) + return; + ath9k_set_beacon(sc); set_bit(ATH_OP_BEACONS, &common->op_flags); return; @@ -593,10 +661,13 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif, cur_conf->enable_beacon = false; } else if (bss_conf->enable_beacon) { cur_conf->enable_beacon = true; - ath9k_cache_beacon_config(sc, bss_conf); + ath9k_cache_beacon_config(sc, ctx, bss_conf); } } + if (ctx != sc->cur_chan) + return; + /* * Configure the HW beacon registers only when we have a valid * beacon interval. @@ -631,7 +702,7 @@ void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif, void ath9k_set_beacon(struct ath_softc *sc) { struct ath_common *common = ath9k_hw_common(sc->sc_ah); - struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf; + struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon; switch (sc->sc_ah->opmode) { case NL80211_IFTYPE_AP: |