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/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef RATE_CONTROL
#define RATE_CONTROL
#define RATE_CONTROL_NUM_DOWN 20
#define RATE_CONTROL_NUM_UP 15
struct rate_control_extra {
/* values from rate_control_get_rate() to the caller: */
struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
* probing */
int startidx, endidx, rateidx;
struct ieee80211_rate *nonerp;
int nonerp_idx;
/* parameters from the caller to rate_control_get_rate(): */
int mgmt_data; /* this is data frame that is used for management
* (e.g., IEEE 802.1X EAPOL) */
u16 ethertype;
};
struct rate_control_ops {
const char *name;
void (*tx_status)(struct net_device *dev, struct sk_buff *skb,
struct ieee80211_tx_status *status);
struct ieee80211_rate *
(*get_rate)(struct net_device *dev, struct sk_buff *skb,
struct rate_control_extra *extra);
void (*rate_init)(struct ieee80211_local *local, struct sta_info *sta);
void (*clear)(void *priv);
int (*status_sta)(struct ieee80211_local *local,
struct sta_info *sta, char *buf);
int (*status_global)(struct ieee80211_local *local, char *buf);
void * (*alloc)(struct ieee80211_local *local);
void (*free)(void *priv);
void * (*alloc_sta)(void);
void (*free_sta)(void *priv);
};
int ieee80211_rate_control_register(struct rate_control_ops *ops);
void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
static inline void rate_control_tx_status(struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status)
{
struct ieee80211_local *local = dev->priv;
local->rate_ctrl->tx_status(dev, skb, status);
}
static inline struct ieee80211_rate *
rate_control_get_rate(struct net_device *dev, struct sk_buff *skb,
struct rate_control_extra *extra)
{
struct ieee80211_local *local = dev->priv;
return local->rate_ctrl->get_rate(dev, skb, extra);
}
static inline void rate_control_rate_init(struct ieee80211_local *local,
struct sta_info *sta)
{
local->rate_ctrl->rate_init(local, sta);
}
static inline void rate_control_clear(struct ieee80211_local *local)
{
local->rate_ctrl->clear(local->rate_ctrl_priv);
}
static inline int rate_control_status_sta(struct ieee80211_local *local,
struct sta_info *sta, char *buf)
{
return local->rate_ctrl->status_sta(local, sta, buf);
}
static inline int rate_control_status_global(struct ieee80211_local *local,
char *buf)
{
return local->rate_ctrl->status_global(local, buf);
}
static inline void * rate_control_alloc(struct ieee80211_local *local)
{
return local->rate_ctrl->alloc(local);
}
static inline void rate_control_free(struct ieee80211_local *local)
{
if (local->rate_ctrl == NULL || local->rate_ctrl_priv == NULL)
return;
local->rate_ctrl->free(local->rate_ctrl_priv);
local->rate_ctrl_priv = NULL;
}
static inline void * rate_control_alloc_sta(struct ieee80211_local *local)
{
return local->rate_ctrl->alloc_sta();
}
static inline void rate_control_free_sta(struct ieee80211_local *local,
void *priv)
{
local->rate_ctrl->free_sta(priv);
}
#endif /* RATE_CONTROL */
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