Return-path: Received: from nbd.name ([46.4.11.11]:46014 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756435Ab1EQTKG (ORCPT ); Tue, 17 May 2011 15:10:06 -0400 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, lrodriguez@atheros.com, rmanoharan@atheros.com Subject: [PATCH v2] ath9k: implement .tx_last_beacon() Date: Tue, 17 May 2011 21:09:54 +0200 Message-Id: <1305659394-61466-1-git-send-email-nbd@openwrt.org> (sfid-20110517_211010_528470_EA12B456) Sender: linux-wireless-owner@vger.kernel.org List-ID: Signed-off-by: Felix Fietkau --- drivers/net/wireless/ath/ath9k/ath9k.h | 3 ++ drivers/net/wireless/ath/ath9k/beacon.c | 12 +++++++++ drivers/net/wireless/ath/ath9k/main.c | 40 +++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 03b37d7..d6e7825 100644 --- 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); diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 0199af0..e8756c5 100644 --- 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_softc *sc, struct ath_vif *avp, 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_generate(struct ieee80211_hw *hw, 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(struct ath_softc *sc, 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); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 17ebdf1..473aff5 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2332,6 +2332,45 @@ static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw) 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; + + 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) { + tasklet_disable(&sc->bcon_tasklet); + + bf = avp->av_bcbuf; + if (!bf || !bf->bf_mpdu) + goto skip; + + status = ath9k_hw_txprocdesc(ah, bf->bf_desc, &ts); + if (status == -EINPROGRESS) + goto skip; + + sc->beacon.tx_processed = true; + sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK); + +skip: + tasklet_enable(&sc->bcon_tasklet); + } + + return sc->beacon.tx_last; +} + struct ieee80211_ops ath9k_ops = { .tx = ath9k_tx, .start = ath9k_start, @@ -2356,4 +2395,5 @@ 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, }; -- 1.7.3.2