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f0706e82 JB |
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> | |
d0709a65 | 17 | #include <linux/kref.h> |
f0706e82 JB |
18 | #include <net/mac80211.h> |
19 | #include "ieee80211_i.h" | |
20 | #include "sta_info.h" | |
21 | ||
f0706e82 | 22 | struct rate_control_ref { |
4b7679a5 | 23 | struct ieee80211_local *local; |
f0706e82 JB |
24 | struct rate_control_ops *ops; |
25 | void *priv; | |
26 | struct kref kref; | |
27 | }; | |
28 | ||
4b7679a5 | 29 | void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, |
e6a9854b JB |
30 | struct sta_info *sta, |
31 | struct ieee80211_tx_rate_control *txrc); | |
f0706e82 JB |
32 | struct rate_control_ref *rate_control_get(struct rate_control_ref *ref); |
33 | void rate_control_put(struct rate_control_ref *ref); | |
34 | ||
4b7679a5 JB |
35 | static inline void rate_control_tx_status(struct ieee80211_local *local, |
36 | struct ieee80211_supported_band *sband, | |
37 | struct sta_info *sta, | |
e039fa4a | 38 | struct sk_buff *skb) |
f0706e82 JB |
39 | { |
40 | struct rate_control_ref *ref = local->rate_ctrl; | |
4b7679a5 JB |
41 | struct ieee80211_sta *ista = &sta->sta; |
42 | void *priv_sta = sta->rate_ctrl_priv; | |
3c384053 V |
43 | |
44 | if (!ref) | |
45 | return; | |
46 | ||
37eb0b16 | 47 | ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb); |
f0706e82 JB |
48 | } |
49 | ||
50 | ||
4b7679a5 | 51 | static inline void rate_control_rate_init(struct sta_info *sta) |
f0706e82 | 52 | { |
4b7679a5 | 53 | struct ieee80211_local *local = sta->sdata->local; |
f0706e82 | 54 | struct rate_control_ref *ref = sta->rate_ctrl; |
4b7679a5 JB |
55 | struct ieee80211_sta *ista = &sta->sta; |
56 | void *priv_sta = sta->rate_ctrl_priv; | |
57 | struct ieee80211_supported_band *sband; | |
58 | ||
af65cd96 JB |
59 | if (!ref) |
60 | return; | |
61 | ||
4b7679a5 JB |
62 | sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; |
63 | ||
64 | ref->ops->rate_init(ref->priv, sband, ista, priv_sta); | |
f0706e82 JB |
65 | } |
66 | ||
81cb7623 S |
67 | static inline void rate_control_rate_update(struct ieee80211_local *local, |
68 | struct ieee80211_supported_band *sband, | |
4fa00437 S |
69 | struct sta_info *sta, u32 changed, |
70 | enum nl80211_channel_type oper_chan_type) | |
81cb7623 S |
71 | { |
72 | struct rate_control_ref *ref = local->rate_ctrl; | |
73 | struct ieee80211_sta *ista = &sta->sta; | |
74 | void *priv_sta = sta->rate_ctrl_priv; | |
75 | ||
af65cd96 | 76 | if (ref && ref->ops->rate_update) |
81cb7623 | 77 | ref->ops->rate_update(ref->priv, sband, ista, |
4fa00437 | 78 | priv_sta, changed, oper_chan_type); |
81cb7623 | 79 | } |
f0706e82 | 80 | |
f0706e82 | 81 | static inline void *rate_control_alloc_sta(struct rate_control_ref *ref, |
4b7679a5 | 82 | struct ieee80211_sta *sta, |
f0706e82 JB |
83 | gfp_t gfp) |
84 | { | |
4b7679a5 | 85 | return ref->ops->alloc_sta(ref->priv, sta, gfp); |
f0706e82 JB |
86 | } |
87 | ||
4b7679a5 | 88 | static inline void rate_control_free_sta(struct sta_info *sta) |
f0706e82 | 89 | { |
4b7679a5 JB |
90 | struct rate_control_ref *ref = sta->rate_ctrl; |
91 | struct ieee80211_sta *ista = &sta->sta; | |
92 | void *priv_sta = sta->rate_ctrl_priv; | |
93 | ||
94 | ref->ops->free_sta(ref->priv, ista, priv_sta); | |
f0706e82 JB |
95 | } |
96 | ||
e9f207f0 JB |
97 | static inline void rate_control_add_sta_debugfs(struct sta_info *sta) |
98 | { | |
99 | #ifdef CONFIG_MAC80211_DEBUGFS | |
100 | struct rate_control_ref *ref = sta->rate_ctrl; | |
af65cd96 | 101 | if (ref && sta->debugfs.dir && ref->ops->add_sta_debugfs) |
e9f207f0 JB |
102 | ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv, |
103 | sta->debugfs.dir); | |
104 | #endif | |
105 | } | |
106 | ||
107 | static inline void rate_control_remove_sta_debugfs(struct sta_info *sta) | |
108 | { | |
109 | #ifdef CONFIG_MAC80211_DEBUGFS | |
110 | struct rate_control_ref *ref = sta->rate_ctrl; | |
af65cd96 | 111 | if (ref && ref->ops->remove_sta_debugfs) |
e9f207f0 JB |
112 | ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv); |
113 | #endif | |
114 | } | |
115 | ||
209c671d AS |
116 | /* Get a reference to the rate control algorithm. If `name' is NULL, get the |
117 | * first available algorithm. */ | |
ff688089 JB |
118 | int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, |
119 | const char *name); | |
120 | void rate_control_deinitialize(struct ieee80211_local *local); | |
121 | ||
4b475898 JB |
122 | |
123 | /* Rate control algorithms */ | |
e5f5e733 | 124 | #ifdef CONFIG_MAC80211_RC_PID |
4b475898 JB |
125 | extern int rc80211_pid_init(void); |
126 | extern void rc80211_pid_exit(void); | |
127 | #else | |
128 | static inline int rc80211_pid_init(void) | |
129 | { | |
130 | return 0; | |
131 | } | |
132 | static inline void rc80211_pid_exit(void) | |
133 | { | |
134 | } | |
135 | #endif | |
136 | ||
cccf129f FF |
137 | #ifdef CONFIG_MAC80211_RC_MINSTREL |
138 | extern int rc80211_minstrel_init(void); | |
139 | extern void rc80211_minstrel_exit(void); | |
140 | #else | |
141 | static inline int rc80211_minstrel_init(void) | |
142 | { | |
143 | return 0; | |
144 | } | |
145 | static inline void rc80211_minstrel_exit(void) | |
146 | { | |
147 | } | |
148 | #endif | |
149 | ||
ec8aa669 FF |
150 | #ifdef CONFIG_MAC80211_RC_MINSTREL_HT |
151 | extern int rc80211_minstrel_ht_init(void); | |
152 | extern void rc80211_minstrel_ht_exit(void); | |
153 | #else | |
154 | static inline int rc80211_minstrel_ht_init(void) | |
155 | { | |
156 | return 0; | |
157 | } | |
158 | static inline void rc80211_minstrel_ht_exit(void) | |
159 | { | |
160 | } | |
161 | #endif | |
162 | ||
cccf129f | 163 | |
f0706e82 | 164 | #endif /* IEEE80211_RATE_H */ |