FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_channel.h

     /*      $NetBSD: ieee80211_channel.h,v 1.1 2004/07/16 02:56:50 dyoung Exp $     */
     /*-
      * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * Alternatively, this software may be distributed under the terms of the
     * GNU General Public License ("GPL") version 2 as published by the Free
     * Software Foundation.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    #ifndef _NET80211_IEEE80211_CHANNEL_H_
    #define _NET80211_IEEE80211_CHANNEL_H_
    
    /*
     * net80211 channel definitions.
     */
    
    /*
     * Channels are specified by frequency and attributes.
     */
    struct ieee80211_channel {
            u_int16_t       ic_freq;        /* setting in Mhz */
            u_int16_t       ic_flags;       /* see below */
    };
    
    /* bits 0-3 are for private use by drivers */
    /* channel attributes */
    #define IEEE80211_CHAN_TURBO    0x0010  /* Turbo channel */
    #define IEEE80211_CHAN_CCK      0x0020  /* CCK channel */
    #define IEEE80211_CHAN_OFDM     0x0040  /* OFDM channel */
    #define IEEE80211_CHAN_2GHZ     0x0080  /* 2 GHz spectrum channel. */
    #define IEEE80211_CHAN_5GHZ     0x0100  /* 5 GHz spectrum channel */
    #define IEEE80211_CHAN_PASSIVE  0x0200  /* Only passive scan allowed */
    #define IEEE80211_CHAN_DYN      0x0400  /* Dynamic CCK-OFDM channel */
    #define IEEE80211_CHAN_GFSK     0x0800  /* GFSK channel (FHSS PHY) */
    
    /*
     * Useful combinations of channel characteristics.
     */
    #define IEEE80211_CHAN_FHSS \
            (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
    #define IEEE80211_CHAN_A \
            (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
    #define IEEE80211_CHAN_B \
            (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
    #define IEEE80211_CHAN_PUREG \
            (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
    #define IEEE80211_CHAN_G \
            (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
    #define IEEE80211_CHAN_T \
            (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
    
    #define IEEE80211_IS_CHAN_FHSS(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
    #define IEEE80211_IS_CHAN_A(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
    #define IEEE80211_IS_CHAN_B(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
    #define IEEE80211_IS_CHAN_PUREG(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
    #define IEEE80211_IS_CHAN_G(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
    #define IEEE80211_IS_CHAN_T(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_T) == IEEE80211_CHAN_T)
    
    #define IEEE80211_IS_CHAN_2GHZ(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
    #define IEEE80211_IS_CHAN_5GHZ(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
    #define IEEE80211_IS_CHAN_OFDM(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0)
    #define IEEE80211_IS_CHAN_CCK(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0)
    #define IEEE80211_IS_CHAN_GFSK(_c) \
            (((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
    
    #endif /* _NET80211_IEEE80211_CHANNEL_H_ */

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