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e7f0d7cf47
This turns ieee80211_node_pwrsave(), ieee80211_sta_pwrsave() and ieee80211_recv_pspoll() into methods. The intent is to let drivers override these and tie into the power save management pathway. For ath(4), this is the beginning of forcing a node software queue to stop and start as needed, as well as supporting "leaking" single frames from the software queue to the hardware. Right now, ieee80211_recv_pspoll() will attempt to transmit a single frame to the hardware (whether it be a data frame on the power-save queue or a NULL data frame) but the driver may have hardware/software queued frames queued up. This initial work is an attempt at providing the hooks required to implement correct behaviour. Allowing ieee80211_node_pwrsave() to be overridden allows the ath(4) driver to pause and unpause the entire software queue for a given node. It doesn't make sense to transmit anything whilst the node is asleep. Please note that there are other corner cases to correctly handle - specifically, setting the MORE data bit correctly on frames to a station, as well as keeping the TIM updated. Those particular issues can be addressed later.
42 lines
1.7 KiB
C
42 lines
1.7 KiB
C
/*-
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* Copyright (c) 2007-2008 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NET80211_IEEE80211_HOSTAP_H_
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#define _NET80211_IEEE80211_HOSTAP_H_
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/*
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* Hostap implementation definitions.
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*/
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void ieee80211_hostap_attach(struct ieee80211com *);
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void ieee80211_hostap_detach(struct ieee80211com *);
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/*
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* This method can be overridden
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*/
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void ieee80211_recv_pspoll(struct ieee80211_node *, struct mbuf *);
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#endif /* !_NET80211_IEEE80211_HOSTAP_H_ */
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