1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright 2002-2005, Instant802 Networks, Inc.
4*4882a593Smuzhiyun * Copyright 2005, Devicescape Software, Inc.
5*4882a593Smuzhiyun * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #ifndef IEEE80211_RATE_H
9*4882a593Smuzhiyun #define IEEE80211_RATE_H
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/netdevice.h>
12*4882a593Smuzhiyun #include <linux/skbuff.h>
13*4882a593Smuzhiyun #include <linux/types.h>
14*4882a593Smuzhiyun #include <net/mac80211.h>
15*4882a593Smuzhiyun #include "ieee80211_i.h"
16*4882a593Smuzhiyun #include "sta_info.h"
17*4882a593Smuzhiyun #include "driver-ops.h"
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun struct rate_control_ref {
20*4882a593Smuzhiyun const struct rate_control_ops *ops;
21*4882a593Smuzhiyun void *priv;
22*4882a593Smuzhiyun };
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
25*4882a593Smuzhiyun struct sta_info *sta,
26*4882a593Smuzhiyun struct ieee80211_tx_rate_control *txrc);
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun void rate_control_tx_status(struct ieee80211_local *local,
29*4882a593Smuzhiyun struct ieee80211_supported_band *sband,
30*4882a593Smuzhiyun struct ieee80211_tx_status *st);
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun void rate_control_rate_init(struct sta_info *sta);
33*4882a593Smuzhiyun void rate_control_rate_update(struct ieee80211_local *local,
34*4882a593Smuzhiyun struct ieee80211_supported_band *sband,
35*4882a593Smuzhiyun struct sta_info *sta, u32 changed);
36*4882a593Smuzhiyun
rate_control_alloc_sta(struct rate_control_ref * ref,struct sta_info * sta,gfp_t gfp)37*4882a593Smuzhiyun static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
38*4882a593Smuzhiyun struct sta_info *sta, gfp_t gfp)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun spin_lock_init(&sta->rate_ctrl_lock);
41*4882a593Smuzhiyun return ref->ops->alloc_sta(ref->priv, &sta->sta, gfp);
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
rate_control_free_sta(struct sta_info * sta)44*4882a593Smuzhiyun static inline void rate_control_free_sta(struct sta_info *sta)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun struct rate_control_ref *ref = sta->rate_ctrl;
47*4882a593Smuzhiyun struct ieee80211_sta *ista = &sta->sta;
48*4882a593Smuzhiyun void *priv_sta = sta->rate_ctrl_priv;
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun ref->ops->free_sta(ref->priv, ista, priv_sta);
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
rate_control_add_sta_debugfs(struct sta_info * sta)53*4882a593Smuzhiyun static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
54*4882a593Smuzhiyun {
55*4882a593Smuzhiyun #ifdef CONFIG_MAC80211_DEBUGFS
56*4882a593Smuzhiyun struct rate_control_ref *ref = sta->rate_ctrl;
57*4882a593Smuzhiyun if (ref && sta->debugfs_dir && ref->ops->add_sta_debugfs)
58*4882a593Smuzhiyun ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
59*4882a593Smuzhiyun sta->debugfs_dir);
60*4882a593Smuzhiyun #endif
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun extern const struct file_operations rcname_ops;
64*4882a593Smuzhiyun
rate_control_add_debugfs(struct ieee80211_local * local)65*4882a593Smuzhiyun static inline void rate_control_add_debugfs(struct ieee80211_local *local)
66*4882a593Smuzhiyun {
67*4882a593Smuzhiyun #ifdef CONFIG_MAC80211_DEBUGFS
68*4882a593Smuzhiyun struct dentry *debugfsdir;
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun if (!local->rate_ctrl)
71*4882a593Smuzhiyun return;
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun if (!local->rate_ctrl->ops->add_debugfs)
74*4882a593Smuzhiyun return;
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun debugfsdir = debugfs_create_dir("rc", local->hw.wiphy->debugfsdir);
77*4882a593Smuzhiyun local->debugfs.rcdir = debugfsdir;
78*4882a593Smuzhiyun debugfs_create_file("name", 0400, debugfsdir,
79*4882a593Smuzhiyun local->rate_ctrl, &rcname_ops);
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun local->rate_ctrl->ops->add_debugfs(&local->hw, local->rate_ctrl->priv,
82*4882a593Smuzhiyun debugfsdir);
83*4882a593Smuzhiyun #endif
84*4882a593Smuzhiyun }
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata);
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun /* Get a reference to the rate control algorithm. If `name' is NULL, get the
89*4882a593Smuzhiyun * first available algorithm. */
90*4882a593Smuzhiyun int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
91*4882a593Smuzhiyun const char *name);
92*4882a593Smuzhiyun void rate_control_deinitialize(struct ieee80211_local *local);
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun /* Rate control algorithms */
96*4882a593Smuzhiyun #ifdef CONFIG_MAC80211_RC_MINSTREL
97*4882a593Smuzhiyun int rc80211_minstrel_init(void);
98*4882a593Smuzhiyun void rc80211_minstrel_exit(void);
99*4882a593Smuzhiyun #else
rc80211_minstrel_init(void)100*4882a593Smuzhiyun static inline int rc80211_minstrel_init(void)
101*4882a593Smuzhiyun {
102*4882a593Smuzhiyun return 0;
103*4882a593Smuzhiyun }
rc80211_minstrel_exit(void)104*4882a593Smuzhiyun static inline void rc80211_minstrel_exit(void)
105*4882a593Smuzhiyun {
106*4882a593Smuzhiyun }
107*4882a593Smuzhiyun #endif
108*4882a593Smuzhiyun
109*4882a593Smuzhiyun
110*4882a593Smuzhiyun #endif /* IEEE80211_RATE_H */
111