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

     /*-
      * 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.
     *
     * $FreeBSD: releng/8.1/sys/net80211/ieee80211_ratectl.h 207912 2010-05-11 11:08:15Z rpaulo $
     */
    
    enum ieee80211_ratealgs {
            IEEE80211_RATECTL_AMRR          = 0,
            IEEE80211_RATECTL_RSSADAPT      = 1,
            IEEE80211_RATECTL_ONOE          = 2,
            IEEE80211_RATECTL_SAMPLE        = 3,
            IEEE80211_RATECTL_MAX
    };
    
    #define IEEE80211_RATECTL_TX_SUCCESS    1
    #define IEEE80211_RATECTL_TX_FAILURE    0
    
    struct ieee80211_ratectl {
            const char *ir_name;
            int     (*ir_attach)(const struct ieee80211vap *);
            void    (*ir_detach)(const struct ieee80211vap *);
            void    (*ir_init)(struct ieee80211vap *);
            void    (*ir_deinit)(struct ieee80211vap *);
            void    (*ir_node_init)(struct ieee80211_node *);
            void    (*ir_node_deinit)(struct ieee80211_node *);
            int     (*ir_rate)(struct ieee80211_node *, void *, uint32_t);
            void    (*ir_tx_complete)(const struct ieee80211vap *,
                                      const struct ieee80211_node *, int,
                                      void *, void *);
            void    (*ir_tx_update)(const struct ieee80211vap *,
                                    const struct ieee80211_node *,
                                    void *, void *, void *);
            void    (*ir_setinterval)(const struct ieee80211vap *, int);
    };
    
    void    ieee80211_ratectl_register(int, const struct ieee80211_ratectl *);
    void    ieee80211_ratectl_unregister(int);
    void    ieee80211_ratectl_set(struct ieee80211vap *, int);
    
    MALLOC_DECLARE(M_80211_RATECTL);
    
    static void __inline
    ieee80211_ratectl_init(struct ieee80211vap *vap)
    {
            vap->iv_rate->ir_init(vap);
    }
    
    static void __inline
    ieee80211_ratectl_deinit(struct ieee80211vap *vap)
    {
            vap->iv_rate->ir_deinit(vap);
    }
    
    static void __inline
    ieee80211_ratectl_node_init(struct ieee80211_node *ni)
    {
            const struct ieee80211vap *vap = ni->ni_vap;
    
            vap->iv_rate->ir_node_init(ni);
    }
    
    static void __inline
    ieee80211_ratectl_node_deinit(struct ieee80211_node *ni)
    {
            const struct ieee80211vap *vap = ni->ni_vap;
    
            if (ni->ni_rctls == NULL)       /* ratectl not setup */
                    return;
            vap->iv_rate->ir_node_deinit(ni);
    }
    
    static int __inline
    ieee80211_ratectl_rate(struct ieee80211_node *ni, void *arg, uint32_t iarg)
    {
            const struct ieee80211vap *vap = ni->ni_vap;
    
            if (ni->ni_rctls == NULL)       /* ratectl not setup */
                    return 0;
           return vap->iv_rate->ir_rate(ni, arg, iarg);
   }
   
   static void __inline
   ieee80211_ratectl_tx_complete(const struct ieee80211vap *vap,
       const struct ieee80211_node *ni, int status, void *arg1, void *arg2)
   {
           if (ni->ni_rctls == NULL)       /* ratectl not setup */
                   return;
           vap->iv_rate->ir_tx_complete(vap, ni, status, arg1, arg2);
   }
   
   static void __inline
   ieee80211_ratectl_tx_update(const struct ieee80211vap *vap,
       const struct ieee80211_node *ni, void *arg1, void *arg2, void *arg3)
   {
           if (vap->iv_rate->ir_tx_update == NULL)
                   return;
           if (ni->ni_rctls == NULL)       /* ratectl not setup */
                   return;
           vap->iv_rate->ir_tx_update(vap, ni, arg1, arg2, arg3);
   }
   
   static void __inline
   ieee80211_ratectl_setinterval(const struct ieee80211vap *vap, int msecs)
   {
           if (vap->iv_rate->ir_setinterval == NULL)
                   return;
           vap->iv_rate->ir_setinterval(vap, msecs);
   }

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