2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #ifndef _NET80211_IEEE80211_POWER_H_
30 #define _NET80211_IEEE80211_POWER_H_
34 struct ieee80211_node;
38 * Power save packet queues. There are two queues, one
39 * for frames coming from the net80211 layer and the other
40 * for frames that come from the driver. Frames from the
41 * driver are expected to have M_ENCAP marked to indicate
42 * they have already been encapsulated and are treated as
43 * higher priority: they are sent first when flushing the
44 * queue on a power save state change or in response to a
47 * Note that frames sent from the high priority queue are
48 * fed directly to the driver without going through
49 * ieee80211_start again; drivers that send up encap'd
50 * frames are required to handle them when they come back.
52 struct ieee80211_psq {
53 ieee80211_psq_lock_t psq_lock;
57 struct ieee80211_psq_head {
61 } psq_head[2]; /* 2 priorities */
64 void ieee80211_psq_init(struct ieee80211_psq *, const char *);
65 void ieee80211_psq_cleanup(struct ieee80211_psq *);
67 void ieee80211_power_attach(struct ieee80211com *);
68 void ieee80211_power_detach(struct ieee80211com *);
69 void ieee80211_power_vattach(struct ieee80211vap *);
70 void ieee80211_power_vdetach(struct ieee80211vap *);
71 void ieee80211_power_latevattach(struct ieee80211vap *);
73 struct mbuf *ieee80211_node_psq_dequeue(struct ieee80211_node *ni, int *qlen);
74 int ieee80211_node_psq_drain(struct ieee80211_node *);
75 int ieee80211_node_psq_age(struct ieee80211_node *);
78 * Don't call these directly from the stack; they are vap methods
79 * that should be overridden.
81 int ieee80211_pwrsave(struct ieee80211_node *, struct mbuf *);
82 void ieee80211_node_pwrsave(struct ieee80211_node *, int enable);
83 void ieee80211_sta_pwrsave(struct ieee80211vap *, int enable);
84 void ieee80211_sta_tim_notify(struct ieee80211vap *vap, int set);
85 void ieee80211_sta_ps_timer_check(struct ieee80211vap *vap);
87 /* XXX what's this? */
88 void ieee80211_power_poll(struct ieee80211com *);
89 #endif /* _NET80211_IEEE80211_POWER_H_ */