LXR linux/net/mac80211/rate.h

   1/*
   2 * Copyright 2002-2005, Instant802 Networks, Inc.
   3 * Copyright 2005, Devicescape Software, Inc.
   4 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2 as
   8 * published by the Free Software Foundation.
   9 */
  10
  11#ifndef IEEE80211_RATE_H
  12#define IEEE80211_RATE_H
  13
  14#include <linux/netdevice.h>
  15#include <linux/skbuff.h>
  16#include <linux/types.h>
  17#include <net/mac80211.h>
  18#include "ieee80211_i.h"
  19#include "sta_info.h"
  20#include "driver-ops.h"
  21
  22struct rate_control_ref {
  23        const struct rate_control_ops *ops;
  24        void *priv;
  25};
  26
  27void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
  28                           struct sta_info *sta,
  29                           struct ieee80211_tx_rate_control *txrc);
  30
  31void rate_control_tx_status(struct ieee80211_local *local,
  32                            struct ieee80211_supported_band *sband,
  33                            struct ieee80211_tx_status *st);
  34
  35void rate_control_rate_init(struct sta_info *sta);
  36void rate_control_rate_update(struct ieee80211_local *local,
  37                                    struct ieee80211_supported_band *sband,
  38                                    struct sta_info *sta, u32 changed);
  39
  40static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
  41                                           struct sta_info *sta, gfp_t gfp)
  42{
  43        spin_lock_init(&sta->rate_ctrl_lock);
  44        return ref->ops->alloc_sta(ref->priv, &sta->sta, gfp);
  45}
  46
  47static inline void rate_control_free_sta(struct sta_info *sta)
  48{
  49        struct rate_control_ref *ref = sta->rate_ctrl;
  50        struct ieee80211_sta *ista = &sta->sta;
  51        void *priv_sta = sta->rate_ctrl_priv;
  52
  53        ref->ops->free_sta(ref->priv, ista, priv_sta);
  54}
  55
  56static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
  57{
  58#ifdef CONFIG_MAC80211_DEBUGFS
  59        struct rate_control_ref *ref = sta->rate_ctrl;
  60        if (ref && sta->debugfs_dir && ref->ops->add_sta_debugfs)
  61                ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
  62                                          sta->debugfs_dir);
  63#endif
  64}
  65
  66static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
  67{
  68#ifdef CONFIG_MAC80211_DEBUGFS
  69        struct rate_control_ref *ref = sta->rate_ctrl;
  70        if (ref && ref->ops->remove_sta_debugfs)
  71                ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
  72#endif
  73}
  74
  75void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata);
  76
  77/* Get a reference to the rate control algorithm. If `name' is NULL, get the
  78 * first available algorithm. */
  79int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
  80                                 const char *name);
  81void rate_control_deinitialize(struct ieee80211_local *local);
  82
  83
  84/* Rate control algorithms */
  85#ifdef CONFIG_MAC80211_RC_MINSTREL
  86int rc80211_minstrel_init(void);
  87void rc80211_minstrel_exit(void);
  88#else
  89static inline int rc80211_minstrel_init(void)
  90{
  91        return 0;
  92}
  93static inline void rc80211_minstrel_exit(void)
  94{
  95}
  96#endif
  97
  98#ifdef CONFIG_MAC80211_RC_MINSTREL_HT
  99int rc80211_minstrel_ht_init(void);
 100void rc80211_minstrel_ht_exit(void);
 101#else
 102static inline int rc80211_minstrel_ht_init(void)
 103{
 104        return 0;
 105}
 106static inline void rc80211_minstrel_ht_exit(void)
 107{
 108}
 109#endif
 110
 111
 112#endif /* IEEE80211_RATE_H */
 113