LXR linux/net/mac80211/rate.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright 2002-2005, Instant802 Networks, Inc.
   4 * Copyright 2005, Devicescape Software, Inc.
   5 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
   6 */
   7
   8#ifndef IEEE80211_RATE_H
   9#define IEEE80211_RATE_H
  10
  11#include <linux/netdevice.h>
  12#include <linux/skbuff.h>
  13#include <linux/types.h>
  14#include <net/mac80211.h>
  15#include "ieee80211_i.h"
  16#include "sta_info.h"
  17#include "driver-ops.h"
  18
  19struct rate_control_ref {
  20        const struct rate_control_ops *ops;
  21        void *priv;
  22};
  23
  24void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
  25                           struct sta_info *sta,
  26                           struct ieee80211_tx_rate_control *txrc);
  27
  28void rate_control_tx_status(struct ieee80211_local *local,
  29                            struct ieee80211_supported_band *sband,
  30                            struct ieee80211_tx_status *st);
  31
  32void rate_control_rate_init(struct sta_info *sta);
  33void rate_control_rate_update(struct ieee80211_local *local,
  34                                    struct ieee80211_supported_band *sband,
  35                                    struct sta_info *sta, u32 changed);
  36
  37static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
  38                                           struct sta_info *sta, gfp_t gfp)
  39{
  40        spin_lock_init(&sta->rate_ctrl_lock);
  41        return ref->ops->alloc_sta(ref->priv, &sta->sta, gfp);
  42}
  43
  44static inline void rate_control_free_sta(struct sta_info *sta)
  45{
  46        struct rate_control_ref *ref = sta->rate_ctrl;
  47        struct ieee80211_sta *ista = &sta->sta;
  48        void *priv_sta = sta->rate_ctrl_priv;
  49
  50        ref->ops->free_sta(ref->priv, ista, priv_sta);
  51}
  52
  53static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
  54{
  55#ifdef CONFIG_MAC80211_DEBUGFS
  56        struct rate_control_ref *ref = sta->rate_ctrl;
  57        if (ref && sta->debugfs_dir && ref->ops->add_sta_debugfs)
  58                ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
  59                                          sta->debugfs_dir);
  60#endif
  61}
  62
  63void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata);
  64
  65/* Get a reference to the rate control algorithm. If `name' is NULL, get the
  66 * first available algorithm. */
  67int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
  68                                 const char *name);
  69void rate_control_deinitialize(struct ieee80211_local *local);
  70
  71
  72/* Rate control algorithms */
  73#ifdef CONFIG_MAC80211_RC_MINSTREL
  74int rc80211_minstrel_init(void);
  75void rc80211_minstrel_exit(void);
  76#else
  77static inline int rc80211_minstrel_init(void)
  78{
  79        return 0;
  80}
  81static inline void rc80211_minstrel_exit(void)
  82{
  83}
  84#endif
  85
  86
  87#endif /* IEEE80211_RATE_H */
  88