2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
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.
11 #ifndef IEEE80211_RATE_H
12 #define IEEE80211_RATE_H
14 #include <linux/netdevice.h>
15 #include <linux/skbuff.h>
16 #include <linux/types.h>
17 #include <linux/kref.h>
18 #include <net/mac80211.h>
19 #include "ieee80211_i.h"
22 struct rate_control_ref {
23 struct ieee80211_local *local;
24 struct rate_control_ops *ops;
29 /* Get a reference to the rate control algorithm. If `name' is NULL, get the
30 * first available algorithm. */
31 struct rate_control_ref *rate_control_alloc(const char *name,
32 struct ieee80211_local *local);
33 void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
35 struct ieee80211_tx_rate_control *txrc);
36 struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
37 void rate_control_put(struct rate_control_ref *ref);
39 static inline void rate_control_tx_status(struct ieee80211_local *local,
40 struct ieee80211_supported_band *sband,
44 struct rate_control_ref *ref = local->rate_ctrl;
45 struct ieee80211_sta *ista = &sta->sta;
46 void *priv_sta = sta->rate_ctrl_priv;
48 ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
52 static inline void rate_control_rate_init(struct sta_info *sta)
54 struct ieee80211_local *local = sta->sdata->local;
55 struct rate_control_ref *ref = sta->rate_ctrl;
56 struct ieee80211_sta *ista = &sta->sta;
57 void *priv_sta = sta->rate_ctrl_priv;
58 struct ieee80211_supported_band *sband;
60 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
62 ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
65 static inline void rate_control_rate_update(struct ieee80211_local *local,
66 struct ieee80211_supported_band *sband,
67 struct sta_info *sta, u32 changed)
69 struct rate_control_ref *ref = local->rate_ctrl;
70 struct ieee80211_sta *ista = &sta->sta;
71 void *priv_sta = sta->rate_ctrl_priv;
73 if (ref->ops->rate_update)
74 ref->ops->rate_update(ref->priv, sband, ista,
78 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
79 struct ieee80211_sta *sta,
82 return ref->ops->alloc_sta(ref->priv, sta, gfp);
85 static inline void rate_control_free_sta(struct sta_info *sta)
87 struct rate_control_ref *ref = sta->rate_ctrl;
88 struct ieee80211_sta *ista = &sta->sta;
89 void *priv_sta = sta->rate_ctrl_priv;
91 ref->ops->free_sta(ref->priv, ista, priv_sta);
94 static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
96 #ifdef CONFIG_MAC80211_DEBUGFS
97 struct rate_control_ref *ref = sta->rate_ctrl;
98 if (sta->debugfs.dir && ref->ops->add_sta_debugfs)
99 ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
104 static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
106 #ifdef CONFIG_MAC80211_DEBUGFS
107 struct rate_control_ref *ref = sta->rate_ctrl;
108 if (ref->ops->remove_sta_debugfs)
109 ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
113 /* functions for rate control related to a device */
114 int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
116 void rate_control_deinitialize(struct ieee80211_local *local);
119 /* Rate control algorithms */
120 #ifdef CONFIG_MAC80211_RC_PID
121 extern int rc80211_pid_init(void);
122 extern void rc80211_pid_exit(void);
124 static inline int rc80211_pid_init(void)
128 static inline void rc80211_pid_exit(void)
133 #ifdef CONFIG_MAC80211_RC_MINSTREL
134 extern int rc80211_minstrel_init(void);
135 extern void rc80211_minstrel_exit(void);
137 static inline int rc80211_minstrel_init(void)
141 static inline void rc80211_minstrel_exit(void)
147 #endif /* IEEE80211_RATE_H */