Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_dfs.h
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2007-2008 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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. 15 * 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. 26 * 27 * $FreeBSD: releng/12.0/sys/net80211/ieee80211_dfs.h 326272 2017-11-27 15:23:17Z pfg $ 28 */ 29 #ifndef _NET80211_IEEE80211_DFS_H_ 30 #define _NET80211_IEEE80211_DFS_H_ 31 32 /* 33 * 802.11h/DFS definitions. 34 */ 35 36 typedef enum { 37 DFS_DBG_NONE = 0, 38 DFS_DBG_NONOL = 1, 39 DFS_DBG_NOCSANOL = 2 40 } dfs_debug_t; 41 42 struct ieee80211_dfs_state { 43 int nol_event[IEEE80211_CHAN_MAX]; 44 struct callout nol_timer; /* NOL list processing */ 45 struct callout cac_timer; /* CAC timer */ 46 struct timeval lastevent; /* time of last radar event */ 47 int cureps; /* current events/second */ 48 const struct ieee80211_channel *lastchan;/* chan w/ last radar event */ 49 struct ieee80211_channel *newchan; /* chan selected next */ 50 }; 51 52 void ieee80211_dfs_attach(struct ieee80211com *); 53 void ieee80211_dfs_detach(struct ieee80211com *); 54 55 void ieee80211_dfs_reset(struct ieee80211com *); 56 57 void ieee80211_dfs_cac_start(struct ieee80211vap *); 58 void ieee80211_dfs_cac_stop(struct ieee80211vap *); 59 void ieee80211_dfs_cac_clear(struct ieee80211com *, 60 const struct ieee80211_channel *); 61 62 void ieee80211_dfs_notify_radar(struct ieee80211com *, 63 struct ieee80211_channel *); 64 struct ieee80211_channel *ieee80211_dfs_pickchannel(struct ieee80211com *); 65 #endif /* _NET80211_IEEE80211_DFS_H_ */
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