129 lines
3.3 KiB
C
129 lines
3.3 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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*
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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 RATE_CONTROL
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#define RATE_CONTROL
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#define RATE_CONTROL_NUM_DOWN 20
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#define RATE_CONTROL_NUM_UP 15
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struct rate_control_extra {
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/* values from rate_control_get_rate() to the caller: */
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struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
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* probing */
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int startidx, endidx, rateidx;
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struct ieee80211_rate *nonerp;
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int nonerp_idx;
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/* parameters from the caller to rate_control_get_rate(): */
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int mgmt_data; /* this is data frame that is used for management
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* (e.g., IEEE 802.1X EAPOL) */
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u16 ethertype;
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};
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struct rate_control_ops {
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const char *name;
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void (*tx_status)(struct net_device *dev, struct sk_buff *skb,
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struct ieee80211_tx_status *status);
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struct ieee80211_rate *
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(*get_rate)(struct net_device *dev, struct sk_buff *skb,
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struct rate_control_extra *extra);
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void (*rate_init)(struct ieee80211_local *local, struct sta_info *sta);
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void (*clear)(void *priv);
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int (*status_sta)(struct ieee80211_local *local,
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struct sta_info *sta, char *buf);
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int (*status_global)(struct ieee80211_local *local, char *buf);
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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);
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void (*free_sta)(void *priv);
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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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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 = dev->priv;
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local->rate_ctrl->tx_status(dev, skb, status);
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}
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static inline struct ieee80211_rate *
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rate_control_get_rate(struct net_device *dev, struct sk_buff *skb,
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struct rate_control_extra *extra)
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{
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struct ieee80211_local *local = dev->priv;
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return local->rate_ctrl->get_rate(dev, skb, extra);
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}
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static inline void rate_control_rate_init(struct ieee80211_local *local,
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struct sta_info *sta)
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{
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local->rate_ctrl->rate_init(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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local->rate_ctrl->clear(local->rate_ctrl_priv);
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}
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static inline int rate_control_status_sta(struct ieee80211_local *local,
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struct sta_info *sta, char *buf)
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{
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return local->rate_ctrl->status_sta(local, sta, buf);
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}
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static inline int rate_control_status_global(struct ieee80211_local *local,
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char *buf)
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{
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return local->rate_ctrl->status_global(local, buf);
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}
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static inline void * rate_control_alloc(struct ieee80211_local *local)
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{
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return local->rate_ctrl->alloc(local);
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}
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static inline void rate_control_free(struct ieee80211_local *local)
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{
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if (local->rate_ctrl == NULL || local->rate_ctrl_priv == NULL)
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return;
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local->rate_ctrl->free(local->rate_ctrl_priv);
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local->rate_ctrl_priv = NULL;
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}
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static inline void * rate_control_alloc_sta(struct ieee80211_local *local)
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{
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return local->rate_ctrl->alloc_sta();
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}
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static inline void rate_control_free_sta(struct ieee80211_local *local,
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void *priv)
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{
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local->rate_ctrl->free_sta(priv);
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}
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#endif /* RATE_CONTROL */
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