Merge tag 'driver-core-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-microblaze.git] / 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
19 struct rate_control_ref {
20         const struct rate_control_ops *ops;
21         void *priv;
22 };
23
24 void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
25                            struct sta_info *sta,
26                            struct ieee80211_tx_rate_control *txrc);
27
28 void rate_control_tx_status(struct ieee80211_local *local,
29                             struct ieee80211_supported_band *sband,
30                             struct ieee80211_tx_status *st);
31
32 void rate_control_rate_init(struct sta_info *sta);
33 void rate_control_rate_update(struct ieee80211_local *local,
34                                     struct ieee80211_supported_band *sband,
35                                     struct sta_info *sta, u32 changed);
36
37 static 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
44 static 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
53 static 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
63 void 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. */
67 int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
68                                  const char *name);
69 void rate_control_deinitialize(struct ieee80211_local *local);
70
71
72 /* Rate control algorithms */
73 #ifdef CONFIG_MAC80211_RC_MINSTREL
74 int rc80211_minstrel_init(void);
75 void rc80211_minstrel_exit(void);
76 #else
77 static inline int rc80211_minstrel_init(void)
78 {
79         return 0;
80 }
81 static inline void rc80211_minstrel_exit(void)
82 {
83 }
84 #endif
85
86
87 #endif /* IEEE80211_RATE_H */