sys/netproto/802_11/ieee80211_ratectl.h

   1 /*-
   2  * Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org>
   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_ratectl.h 206398 2010-04-08 13:34:08Z rpaulo $
  26  * $DragonFly$
  27  */
  28
  29 enum ieee80211_ratealgs {
  30         IEEE80211_RATECTL_AMRR          = 0,
  31         IEEE80211_RATECTL_RSSADAPT      = 1,
  32         IEEE80211_RATECTL_ONOE          = 2,
  33         IEEE80211_RATECTL_SAMPLE        = 3,
  34         IEEE80211_RATECTL_MAX
  35 };
  36
  37 #define IEEE80211_RATECTL_TX_SUCCESS    0
  38 #define IEEE80211_RATECTL_TX_FAILURE    1
  39
  40 struct ieee80211_ratectl {
  41         const char *ir_name;
  42         int     (*ir_attach)(const struct ieee80211vap *);
  43         void    (*ir_detach)(const struct ieee80211vap *);
  44         void    (*ir_init)(struct ieee80211vap *);
  45         void    (*ir_deinit)(struct ieee80211vap *);
  46         void    (*ir_node_init)(struct ieee80211_node *);
  47         void    (*ir_node_deinit)(struct ieee80211_node *);
  48         int     (*ir_rate)(struct ieee80211_node *, void *, uint32_t);
  49         void    (*ir_tx_complete)(const struct ieee80211vap *,
  50                                   const struct ieee80211_node *, int,
  51                                   void *, void *);
  52         void    (*ir_tx_update)(const struct ieee80211vap *,
  53                                 const struct ieee80211_node *,
  54                                 void *, void *, void *);
  55         void    (*ir_setinterval)(const struct ieee80211vap *, int);
  56 };
  57
  58 void    ieee80211_ratectl_register(int, const struct ieee80211_ratectl *);
  59 void    ieee80211_ratectl_unregister(int);
  60 void    ieee80211_ratectl_set(struct ieee80211vap *, int);
  61
  62 MALLOC_DECLARE(M_80211_RATECTL);
  63
  64 static void __inline
  65 ieee80211_ratectl_init(struct ieee80211vap *vap)
  66 {
  67         vap->iv_rate->ir_init(vap);
  68 }
  69
  70 static void __inline
  71 ieee80211_ratectl_deinit(struct ieee80211vap *vap)
  72 {
  73         vap->iv_rate->ir_deinit(vap);
  74 }
  75
  76 static void __inline
  77 ieee80211_ratectl_node_init(struct ieee80211_node *ni)
  78 {
  79         const struct ieee80211vap *vap = ni->ni_vap;
  80
  81         vap->iv_rate->ir_node_init(ni);
  82 }
  83
  84 static void __inline
  85 ieee80211_ratectl_node_deinit(struct ieee80211_node *ni)
  86 {
  87         const struct ieee80211vap *vap = ni->ni_vap;
  88
  89         if (ni->ni_rctls == NULL)       /* ratectl not setup */
  90                 return;
  91         vap->iv_rate->ir_node_deinit(ni);
  92 }
  93
  94 static int __inline
  95 ieee80211_ratectl_rate(struct ieee80211_node *ni, void *arg, uint32_t iarg)
  96 {
  97         const struct ieee80211vap *vap = ni->ni_vap;
  98
  99         if (ni->ni_rctls == NULL)       /* ratectl not setup */
 100                 return 0;
 101         return vap->iv_rate->ir_rate(ni, arg, iarg);
 102 }
 103
 104 static void __inline
 105 ieee80211_ratectl_tx_complete(const struct ieee80211vap *vap,
 106     const struct ieee80211_node *ni, int status, void *arg1, void *arg2)
 107 {
 108         if (ni->ni_rctls == NULL)       /* ratectl not setup */
 109                 return;
 110         vap->iv_rate->ir_tx_complete(vap, ni, status, arg1, arg2);
 111 }
 112
 113 static void __inline
 114 ieee80211_ratectl_tx_update(const struct ieee80211vap *vap,
 115     const struct ieee80211_node *ni, void *arg1, void *arg2, void *arg3)
 116 {
 117         if (vap->iv_rate->ir_tx_update == NULL)
 118                 return;
 119         if (ni->ni_rctls == NULL)       /* ratectl not setup */
 120                 return;
 121         vap->iv_rate->ir_tx_update(vap, ni, arg1, arg2, arg3);
 122 }
 123
 124 static void __inline
 125 ieee80211_ratectl_setinterval(const struct ieee80211vap *vap, int msecs)
 126 {
 127         if (vap->iv_rate->ir_setinterval == NULL)
 128                 return;
 129         vap->iv_rate->ir_setinterval(vap, msecs);
 130 }