Commit | Line | Data |
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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> | |
17 | #include <net/mac80211.h> | |
18 | #include "ieee80211_i.h" | |
19 | #include "sta_info.h" | |
8f727ef3 | 20 | #include "driver-ops.h" |
f0706e82 | 21 | |
f0706e82 | 22 | struct rate_control_ref { |
4b7679a5 | 23 | struct ieee80211_local *local; |
631ad703 | 24 | const struct rate_control_ops *ops; |
f0706e82 | 25 | void *priv; |
f0706e82 JB |
26 | }; |
27 | ||
4b7679a5 | 28 | void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, |
e6a9854b JB |
29 | struct sta_info *sta, |
30 | struct ieee80211_tx_rate_control *txrc); | |
f0706e82 | 31 | |
4b7679a5 JB |
32 | static inline void rate_control_tx_status(struct ieee80211_local *local, |
33 | struct ieee80211_supported_band *sband, | |
34 | struct sta_info *sta, | |
e039fa4a | 35 | struct sk_buff *skb) |
f0706e82 JB |
36 | { |
37 | struct rate_control_ref *ref = local->rate_ctrl; | |
4b7679a5 JB |
38 | struct ieee80211_sta *ista = &sta->sta; |
39 | void *priv_sta = sta->rate_ctrl_priv; | |
f684565e | 40 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
3c384053 | 41 | |
2cfc6fc5 | 42 | if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) |
3c384053 V |
43 | return; |
44 | ||
35c347ac | 45 | spin_lock_bh(&sta->rate_ctrl_lock); |
f684565e FF |
46 | if (ref->ops->tx_status) |
47 | ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb); | |
48 | else | |
49 | ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info); | |
35c347ac | 50 | spin_unlock_bh(&sta->rate_ctrl_lock); |
f0706e82 JB |
51 | } |
52 | ||
f027c2ac FF |
53 | static inline void |
54 | rate_control_tx_status_noskb(struct ieee80211_local *local, | |
55 | struct ieee80211_supported_band *sband, | |
56 | struct sta_info *sta, | |
57 | struct ieee80211_tx_info *info) | |
58 | { | |
59 | struct rate_control_ref *ref = local->rate_ctrl; | |
60 | struct ieee80211_sta *ista = &sta->sta; | |
61 | void *priv_sta = sta->rate_ctrl_priv; | |
62 | ||
63 | if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) | |
64 | return; | |
65 | ||
66 | if (WARN_ON_ONCE(!ref->ops->tx_status_noskb)) | |
67 | return; | |
68 | ||
35c347ac | 69 | spin_lock_bh(&sta->rate_ctrl_lock); |
f027c2ac | 70 | ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info); |
35c347ac | 71 | spin_unlock_bh(&sta->rate_ctrl_lock); |
f027c2ac | 72 | } |
f0706e82 | 73 | |
eb6d9293 DV |
74 | void rate_control_rate_init(struct sta_info *sta); |
75 | void rate_control_rate_update(struct ieee80211_local *local, | |
81cb7623 | 76 | struct ieee80211_supported_band *sband, |
eb6d9293 | 77 | struct sta_info *sta, u32 changed); |
f0706e82 | 78 | |
f0706e82 | 79 | static inline void *rate_control_alloc_sta(struct rate_control_ref *ref, |
35c347ac | 80 | struct sta_info *sta, gfp_t gfp) |
f0706e82 | 81 | { |
35c347ac JB |
82 | spin_lock_init(&sta->rate_ctrl_lock); |
83 | return ref->ops->alloc_sta(ref->priv, &sta->sta, gfp); | |
f0706e82 JB |
84 | } |
85 | ||
4b7679a5 | 86 | static inline void rate_control_free_sta(struct sta_info *sta) |
f0706e82 | 87 | { |
4b7679a5 JB |
88 | struct rate_control_ref *ref = sta->rate_ctrl; |
89 | struct ieee80211_sta *ista = &sta->sta; | |
90 | void *priv_sta = sta->rate_ctrl_priv; | |
91 | ||
92 | ref->ops->free_sta(ref->priv, ista, priv_sta); | |
f0706e82 JB |
93 | } |
94 | ||
e9f207f0 JB |
95 | static inline void rate_control_add_sta_debugfs(struct sta_info *sta) |
96 | { | |
97 | #ifdef CONFIG_MAC80211_DEBUGFS | |
98 | struct rate_control_ref *ref = sta->rate_ctrl; | |
af65cd96 | 99 | if (ref && sta->debugfs.dir && ref->ops->add_sta_debugfs) |
e9f207f0 JB |
100 | ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv, |
101 | sta->debugfs.dir); | |
102 | #endif | |
103 | } | |
104 | ||
105 | static inline void rate_control_remove_sta_debugfs(struct sta_info *sta) | |
106 | { | |
107 | #ifdef CONFIG_MAC80211_DEBUGFS | |
108 | struct rate_control_ref *ref = sta->rate_ctrl; | |
af65cd96 | 109 | if (ref && ref->ops->remove_sta_debugfs) |
e9f207f0 JB |
110 | ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv); |
111 | #endif | |
112 | } | |
113 | ||
209c671d AS |
114 | /* Get a reference to the rate control algorithm. If `name' is NULL, get the |
115 | * first available algorithm. */ | |
ff688089 JB |
116 | int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, |
117 | const char *name); | |
118 | void rate_control_deinitialize(struct ieee80211_local *local); | |
119 | ||
4b475898 JB |
120 | |
121 | /* Rate control algorithms */ | |
cccf129f | 122 | #ifdef CONFIG_MAC80211_RC_MINSTREL |
c1b1203d JP |
123 | int rc80211_minstrel_init(void); |
124 | void rc80211_minstrel_exit(void); | |
cccf129f FF |
125 | #else |
126 | static inline int rc80211_minstrel_init(void) | |
127 | { | |
128 | return 0; | |
129 | } | |
130 | static inline void rc80211_minstrel_exit(void) | |
131 | { | |
132 | } | |
133 | #endif | |
134 | ||
ec8aa669 | 135 | #ifdef CONFIG_MAC80211_RC_MINSTREL_HT |
c1b1203d JP |
136 | int rc80211_minstrel_ht_init(void); |
137 | void rc80211_minstrel_ht_exit(void); | |
ec8aa669 FF |
138 | #else |
139 | static inline int rc80211_minstrel_ht_init(void) | |
140 | { | |
141 | return 0; | |
142 | } | |
143 | static inline void rc80211_minstrel_ht_exit(void) | |
144 | { | |
145 | } | |
146 | #endif | |
147 | ||
cccf129f | 148 | |
f0706e82 | 149 | #endif /* IEEE80211_RATE_H */ |