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: head/sys/net80211/ieee80211_dfs.h 186107 2008-12-15 01:26:33Z sam $ 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]; 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