FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_ratectl.c

     /*-
      * Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org>
      * 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.
     *
     * 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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/8.1/sys/net80211/ieee80211_ratectl.c 207912 2010-05-11 11:08:15Z rpaulo $");
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/systm.h>
    #include <sys/socket.h>
    
    #include <net/if.h>
    #include <net/if_media.h>
    
    #include <net80211/ieee80211_var.h>
    #include <net80211/ieee80211_ratectl.h>
    
    static const struct ieee80211_ratectl *ratectls[IEEE80211_RATECTL_MAX];
    
    MALLOC_DEFINE(M_80211_RATECTL, "80211ratectl", "802.11 rate control");
    
    void
    ieee80211_ratectl_register(int type, const struct ieee80211_ratectl *ratectl)
    {
            if (type >= IEEE80211_RATECTL_MAX)
                    return;
            ratectls[type] = ratectl;
    }
    
    void
    ieee80211_ratectl_unregister(int type)
    {
            if (type >= IEEE80211_RATECTL_MAX)
                    return;
            ratectls[type] = NULL;
    }
    
    void
    ieee80211_ratectl_set(struct ieee80211vap *vap, int type)
    {
            if (type >= IEEE80211_RATECTL_MAX)
                    return;
            vap->iv_rate = ratectls[type];
    }

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