![Johannes Berg](/assets/img/avatar_default.png)
This patch renames all mac80211 files (except ieee80211_i.h) to get rid of the useless ieee80211_ prefix. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
190 lines
5.2 KiB
C
190 lines
5.2 KiB
C
/*
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* Copyright 2002-2005, Instant802 Networks, Inc.
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* Copyright 2005, Devicescape Software, Inc.
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* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef IEEE80211_RATE_H
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#define IEEE80211_RATE_H
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/types.h>
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#include <linux/kref.h>
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#include <net/mac80211.h>
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#include "ieee80211_i.h"
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#include "sta_info.h"
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/* TODO: kdoc */
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struct rate_selection {
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/* Selected transmission rate */
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struct ieee80211_rate *rate;
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/* Non-ERP rate to use if mac80211 decides it cannot use an ERP rate */
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struct ieee80211_rate *nonerp;
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/* probe with this rate, or NULL for no probing */
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struct ieee80211_rate *probe;
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};
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struct rate_control_ops {
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struct module *module;
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const char *name;
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void (*tx_status)(void *priv, struct net_device *dev,
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struct sk_buff *skb,
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struct ieee80211_tx_status *status);
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void (*get_rate)(void *priv, struct net_device *dev,
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struct ieee80211_supported_band *band,
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struct sk_buff *skb,
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struct rate_selection *sel);
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void (*rate_init)(void *priv, void *priv_sta,
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struct ieee80211_local *local, struct sta_info *sta);
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void (*clear)(void *priv);
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void *(*alloc)(struct ieee80211_local *local);
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void (*free)(void *priv);
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void *(*alloc_sta)(void *priv, gfp_t gfp);
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void (*free_sta)(void *priv, void *priv_sta);
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int (*add_attrs)(void *priv, struct kobject *kobj);
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void (*remove_attrs)(void *priv, struct kobject *kobj);
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void (*add_sta_debugfs)(void *priv, void *priv_sta,
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struct dentry *dir);
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void (*remove_sta_debugfs)(void *priv, void *priv_sta);
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};
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struct rate_control_ref {
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struct rate_control_ops *ops;
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void *priv;
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struct kref kref;
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};
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int ieee80211_rate_control_register(struct rate_control_ops *ops);
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void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
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/* Get a reference to the rate control algorithm. If `name' is NULL, get the
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* first available algorithm. */
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struct rate_control_ref *rate_control_alloc(const char *name,
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struct ieee80211_local *local);
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void rate_control_get_rate(struct net_device *dev,
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struct ieee80211_supported_band *sband,
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struct sk_buff *skb,
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struct rate_selection *sel);
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struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
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void rate_control_put(struct rate_control_ref *ref);
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static inline void rate_control_tx_status(struct net_device *dev,
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struct sk_buff *skb,
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struct ieee80211_tx_status *status)
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{
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struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
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struct rate_control_ref *ref = local->rate_ctrl;
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ref->ops->tx_status(ref->priv, dev, skb, status);
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}
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static inline void rate_control_rate_init(struct sta_info *sta,
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struct ieee80211_local *local)
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{
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struct rate_control_ref *ref = sta->rate_ctrl;
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ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
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}
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static inline void rate_control_clear(struct ieee80211_local *local)
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{
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struct rate_control_ref *ref = local->rate_ctrl;
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ref->ops->clear(ref->priv);
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}
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static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
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gfp_t gfp)
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{
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return ref->ops->alloc_sta(ref->priv, gfp);
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}
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static inline void rate_control_free_sta(struct rate_control_ref *ref,
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void *priv)
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{
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ref->ops->free_sta(ref->priv, priv);
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}
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static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
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{
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct rate_control_ref *ref = sta->rate_ctrl;
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if (sta->debugfs.dir && ref->ops->add_sta_debugfs)
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ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
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sta->debugfs.dir);
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#endif
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}
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static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
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{
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct rate_control_ref *ref = sta->rate_ctrl;
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if (ref->ops->remove_sta_debugfs)
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ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
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#endif
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}
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static inline int rate_supported(struct sta_info *sta,
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enum ieee80211_band band,
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int index)
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{
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return (sta == NULL || sta->supp_rates[band] & BIT(index));
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}
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static inline int
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rate_lowest_index(struct ieee80211_local *local,
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struct ieee80211_supported_band *sband,
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struct sta_info *sta)
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{
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int i;
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for (i = 0; i < sband->n_bitrates; i++)
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if (rate_supported(sta, sband->band, i))
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return i;
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/* warn when we cannot find a rate. */
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WARN_ON(1);
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return 0;
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}
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static inline struct ieee80211_rate *
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rate_lowest(struct ieee80211_local *local,
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struct ieee80211_supported_band *sband,
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struct sta_info *sta)
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{
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return &sband->bitrates[rate_lowest_index(local, sband, sta)];
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}
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/* functions for rate control related to a device */
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int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
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const char *name);
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void rate_control_deinitialize(struct ieee80211_local *local);
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/* Rate control algorithms */
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#if defined(RC80211_PID_COMPILE) || \
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(defined(CONFIG_MAC80211_RC_PID) && \
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!defined(CONFIG_MAC80211_RC_PID_MODULE))
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extern int rc80211_pid_init(void);
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extern void rc80211_pid_exit(void);
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#else
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static inline int rc80211_pid_init(void)
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{
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return 0;
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}
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static inline void rc80211_pid_exit(void)
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{
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}
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#endif
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#endif /* IEEE80211_RATE_H */
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