diff options
Diffstat (limited to 'package/d80211/src/ieee80211_rate.h')
| -rw-r--r-- | package/d80211/src/ieee80211_rate.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/package/d80211/src/ieee80211_rate.h b/package/d80211/src/ieee80211_rate.h new file mode 100644 index 0000000000..04c7465ca0 --- /dev/null +++ b/package/d80211/src/ieee80211_rate.h @@ -0,0 +1,161 @@ +/* + * Copyright 2002-2005, Instant802 Networks, Inc. + * Copyright 2005, Devicescape Software, Inc. + * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> + * + * 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 IEEE80211_RATE_H +#define IEEE80211_RATE_H + +#include <linux/netdevice.h> +#include <linux/skbuff.h> +#include <linux/types.h> +#include <net/d80211.h> +#include "ieee80211_i.h" +#include "sta_info.h" + +#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 { + struct module *module; + const char *name; + void (*tx_status)(void *priv, struct net_device *dev, + struct sk_buff *skb, + struct ieee80211_tx_status *status); + struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev, + struct sk_buff *skb, + struct rate_control_extra *extra); + void (*rate_init)(void *priv, void *priv_sta, + struct ieee80211_local *local, struct sta_info *sta); + void (*clear)(void *priv); + + void *(*alloc)(struct ieee80211_local *local); + void (*free)(void *priv); + void *(*alloc_sta)(void *priv, gfp_t gfp); + void (*free_sta)(void *priv, void *priv_sta); + + int (*add_attrs)(void *priv, struct kobject *kobj); + void (*remove_attrs)(void *priv, struct kobject *kobj); + int (*add_sta_attrs)(void *priv, void *priv_sta, + struct kobject *kobj); + void (*remove_sta_attrs)(void *priv, void *priv_sta, + struct kobject *kobj); +}; + +struct rate_control_ref { + struct rate_control_ops *ops; + void *priv; + struct kref kref; +}; + +int ieee80211_rate_control_register(struct rate_control_ops *ops); +void ieee80211_rate_control_unregister(struct rate_control_ops *ops); + +/* Get a reference to the rate control algorithm. If `name' is NULL, get the + * first available algorithm. */ +struct rate_control_ref *rate_control_alloc(const char *name, + struct ieee80211_local *local); +struct rate_control_ref *rate_control_get(struct rate_control_ref *ref); +void rate_control_put(struct rate_control_ref *ref); + +static inline void rate_control_tx_status(struct ieee80211_local *local, + struct net_device *dev, + struct sk_buff *skb, + struct ieee80211_tx_status *status) +{ + struct rate_control_ref *ref = local->rate_ctrl; + ref->ops->tx_status(ref->priv, dev, skb, status); +} + + +static inline struct ieee80211_rate * +rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev, + struct sk_buff *skb, struct rate_control_extra *extra) +{ + struct rate_control_ref *ref = local->rate_ctrl; + return ref->ops->get_rate(ref->priv, dev, skb, extra); +} + + +static inline void rate_control_rate_init(struct sta_info *sta, + struct ieee80211_local *local) +{ + struct rate_control_ref *ref = sta->rate_ctrl; + ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta); +} + + +static inline void rate_control_clear(struct ieee80211_local *local) +{ + struct rate_control_ref *ref = local->rate_ctrl; + ref->ops->clear(ref->priv); +} + +static inline void *rate_control_alloc_sta(struct rate_control_ref *ref, + gfp_t gfp) +{ + return ref->ops->alloc_sta(ref->priv, gfp); +} + +static inline void rate_control_free_sta(struct rate_control_ref *ref, + void *priv) +{ + ref->ops->free_sta(ref->priv, priv); +} + +static inline int rate_control_add_attrs(struct rate_control_ref *ref, + struct kobject *kobj) +{ + if (ref->ops->add_attrs) + return ref->ops->add_attrs(ref->priv, kobj); + return 0; +} + +static inline void rate_control_remove_attrs(struct rate_control_ref *ref, + struct kobject *kobj) +{ + if (ref->ops->remove_attrs) + ref->ops->remove_attrs(ref->priv, kobj); +} + +static inline int rate_control_add_sta_attrs(struct sta_info *sta, + struct kobject *kobj) +{ + struct rate_control_ref *ref = sta->rate_ctrl; + if (ref->ops->add_sta_attrs) + return ref->ops->add_sta_attrs(ref->priv, sta->rate_ctrl_priv, + kobj); + return 0; +} + +static inline void rate_control_remove_sta_attrs(struct sta_info *sta, + struct kobject *kobj) +{ + struct rate_control_ref *ref = sta->rate_ctrl; + if (ref->ops->remove_sta_attrs) + ref->ops->remove_sta_attrs(ref->priv, sta->rate_ctrl_priv, + kobj); +} + +#endif /* IEEE80211_RATE_H */ |