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32176cfd RP |
1 | /*- |
2 | * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * | |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
15 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
16 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
17 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
20 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
21 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 | * | |
085ff963 | 25 | * $FreeBSD$ |
32176cfd RP |
26 | */ |
27 | #ifndef _NET80211_IEEE80211_POWER_H_ | |
28 | #define _NET80211_IEEE80211_POWER_H_ | |
29 | ||
30 | struct ieee80211com; | |
31 | struct ieee80211vap; | |
32 | struct ieee80211_node; | |
33 | struct mbuf; | |
34 | ||
35 | /* | |
36 | * Power save packet queues. There are two queues, one | |
37 | * for frames coming from the net80211 layer and the other | |
38 | * for frames that come from the driver. Frames from the | |
39 | * driver are expected to have M_ENCAP marked to indicate | |
40 | * they have already been encapsulated and are treated as | |
41 | * higher priority: they are sent first when flushing the | |
42 | * queue on a power save state change or in response to a | |
43 | * ps-poll frame. | |
44 | * | |
45 | * Note that frames sent from the high priority queue are | |
46 | * fed directly to the driver without going through | |
47 | * ieee80211_start again; drivers that send up encap'd | |
48 | * frames are required to handle them when they come back. | |
49 | */ | |
50 | struct ieee80211_psq { | |
085ff963 | 51 | ieee80211_psq_lock_t psq_lock; |
32176cfd RP |
52 | int psq_len; |
53 | int psq_maxlen; | |
54 | int psq_drops; | |
55 | struct ieee80211_psq_head { | |
56 | struct mbuf *head; | |
57 | struct mbuf *tail; | |
58 | int len; | |
59 | } psq_head[2]; /* 2 priorities */ | |
60 | }; | |
61 | ||
62 | void ieee80211_psq_init(struct ieee80211_psq *, const char *); | |
63 | void ieee80211_psq_cleanup(struct ieee80211_psq *); | |
64 | ||
65 | void ieee80211_power_attach(struct ieee80211com *); | |
66 | void ieee80211_power_detach(struct ieee80211com *); | |
67 | void ieee80211_power_vattach(struct ieee80211vap *); | |
68 | void ieee80211_power_vdetach(struct ieee80211vap *); | |
69 | void ieee80211_power_latevattach(struct ieee80211vap *); | |
70 | ||
71 | struct mbuf *ieee80211_node_psq_dequeue(struct ieee80211_node *ni, int *qlen); | |
72 | int ieee80211_node_psq_drain(struct ieee80211_node *); | |
73 | int ieee80211_node_psq_age(struct ieee80211_node *); | |
085ff963 MD |
74 | |
75 | /* | |
76 | * Don't call these directly from the stack; they are vap methods | |
77 | * that should be overridden. | |
78 | */ | |
32176cfd RP |
79 | int ieee80211_pwrsave(struct ieee80211_node *, struct mbuf *); |
80 | void ieee80211_node_pwrsave(struct ieee80211_node *, int enable); | |
81 | void ieee80211_sta_pwrsave(struct ieee80211vap *, int enable); | |
d98a0bcf MD |
82 | void ieee80211_sta_tim_notify(struct ieee80211vap *vap, int set); |
83 | void ieee80211_sta_ps_timer_check(struct ieee80211vap *vap); | |
32176cfd | 84 | |
d98a0bcf | 85 | /* XXX what's this? */ |
32176cfd RP |
86 | void ieee80211_power_poll(struct ieee80211com *); |
87 | #endif /* _NET80211_IEEE80211_POWER_H_ */ |