Return-path: Received: from nbd.name ([46.4.11.11]:42325 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752071Ab1BHV0g (ORCPT ); Tue, 8 Feb 2011 16:26:36 -0500 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: j@w1.fi, lrodriguez@atheros.com, m.sujith@gmail.com, Felix Fietkau Subject: [RFC 1/2] mac80211: add a function for setting the TIM bit for a specific station Date: Tue, 8 Feb 2011 22:26:11 +0100 Message-Id: <1297200372-79404-1-git-send-email-nbd@openwrt.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: When a driver wants to buffer some frames internally without feeding them back to mac80211, this allows it to still wake up the station Signed-off-by: Felix Fietkau --- include/net/mac80211.h | 14 ++++++++++++++ net/mac80211/sta_info.c | 8 ++++++++ 2 files changed, 22 insertions(+), 0 deletions(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 8fcd169..9a0babe 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -2194,6 +2194,20 @@ static inline int ieee80211_sta_ps_transition_ni(struct ieee80211_sta *sta, #define IEEE80211_TX_STATUS_HEADROOM 13 /** + * ieee80211_sta_set_tim - set the TIM bit for a sleeping station + * + * If a driver buffers frames for a powersave station instead of passing + * them back to mac80211 for retransmission, the station needs to be told + * to wake up using the TIM bitmap in the beacon. + * + * This function sets the station's TIM bit - it will be cleared automatically + * either when the station wakes up (and mac80211 has flushed out its + * buffered frames), or if all remaining buffered frames in mac80211 have + * timed out. + */ +void ieee80211_sta_set_tim(struct ieee80211_sta *sta); + +/** * ieee80211_tx_status - transmit status callback * * Call this function for all transmitted frames after they have been diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 5a11078..3458091 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -991,3 +991,11 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, ieee80211_queue_work(hw, &sta->drv_unblock_wk); } EXPORT_SYMBOL(ieee80211_sta_block_awake); + +void ieee80211_sta_set_tim(struct ieee80211_sta *pubsta) +{ + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + + sta_info_set_tim_bit(sta); +} +EXPORT_SYMBOL(ieee80211_sta_set_tim); -- 1.7.3.2