1 /*-
2 * Copyright (c) 2007-2008 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 *
25 * $FreeBSD: src/sys/net80211/ieee80211_dfs.h,v 1.1 2008/04/20 20:35:43 sam Exp $
26 */
27 #ifndef _NET80211_IEEE80211_DFS_H_
28 #define _NET80211_IEEE80211_DFS_H_
29
30 /*
31 * 802.11h/DFS definitions.
32 */
33
34 struct ieee80211_dfs_state {
35 int nol_event[IEEE80211_CHAN_MAX+1];
36 struct callout nol_timer; /* NOL list processing */
37 struct callout cac_timer; /* CAC timer */
38 struct timeval lastevent; /* time of last radar event */
39 int cureps; /* current events/second */
40 const struct ieee80211_channel *lastchan;/* chan w/ last radar event */
41 struct ieee80211_channel *newchan; /* chan selected next */
42 };
43
44 void ieee80211_dfs_attach(struct ieee80211com *);
45 void ieee80211_dfs_detach(struct ieee80211com *);
46
47 void ieee80211_dfs_reset(struct ieee80211com *);
48
49 void ieee80211_dfs_cac_start(struct ieee80211vap *);
50 void ieee80211_dfs_cac_stop(struct ieee80211vap *);
51 void ieee80211_dfs_cac_clear(struct ieee80211com *,
52 const struct ieee80211_channel *);
53
54 void ieee80211_dfs_notify_radar(struct ieee80211com *,
55 struct ieee80211_channel *);
56 struct ieee80211_channel *ieee80211_dfs_pickchannel(struct ieee80211com *);
57 #endif /* _NET80211_IEEE80211_DFS_H_ */
58
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