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net/mac80211/rate.h 2.97 KB
81f7e3824   Eric Lee   Initial Release, ...
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  /*
   * 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/mac80211.h>
  #include "ieee80211_i.h"
  #include "sta_info.h"
  #include "driver-ops.h"
  
  struct rate_control_ref {
  	const struct rate_control_ops *ops;
  	void *priv;
  };
  
  void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
  			   struct sta_info *sta,
  			   struct ieee80211_tx_rate_control *txrc);
  
  void rate_control_tx_status(struct ieee80211_local *local,
  			    struct ieee80211_supported_band *sband,
  			    struct ieee80211_tx_status *st);
  
  void rate_control_rate_init(struct sta_info *sta);
  void rate_control_rate_update(struct ieee80211_local *local,
  				    struct ieee80211_supported_band *sband,
  				    struct sta_info *sta, u32 changed);
  
  static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
  					   struct sta_info *sta, gfp_t gfp)
  {
  	spin_lock_init(&sta->rate_ctrl_lock);
  	return ref->ops->alloc_sta(ref->priv, &sta->sta, gfp);
  }
  
  static inline void rate_control_free_sta(struct sta_info *sta)
  {
  	struct rate_control_ref *ref = sta->rate_ctrl;
  	struct ieee80211_sta *ista = &sta->sta;
  	void *priv_sta = sta->rate_ctrl_priv;
  
  	ref->ops->free_sta(ref->priv, ista, priv_sta);
  }
  
  static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
  {
  #ifdef CONFIG_MAC80211_DEBUGFS
  	struct rate_control_ref *ref = sta->rate_ctrl;
  	if (ref && sta->debugfs_dir && ref->ops->add_sta_debugfs)
  		ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
  					  sta->debugfs_dir);
  #endif
  }
  
  static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
  {
  #ifdef CONFIG_MAC80211_DEBUGFS
  	struct rate_control_ref *ref = sta->rate_ctrl;
  	if (ref && ref->ops->remove_sta_debugfs)
  		ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
  #endif
  }
  
  void ieee80211_check_rate_mask(struct ieee80211_sub_if_data *sdata);
  
  /* Get a reference to the rate control algorithm. If `name' is NULL, get the
   * first available algorithm. */
  int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
  				 const char *name);
  void rate_control_deinitialize(struct ieee80211_local *local);
  
  
  /* Rate control algorithms */
  #ifdef CONFIG_MAC80211_RC_MINSTREL
  int rc80211_minstrel_init(void);
  void rc80211_minstrel_exit(void);
  #else
  static inline int rc80211_minstrel_init(void)
  {
  	return 0;
  }
  static inline void rc80211_minstrel_exit(void)
  {
  }
  #endif
  
  #ifdef CONFIG_MAC80211_RC_MINSTREL_HT
  int rc80211_minstrel_ht_init(void);
  void rc80211_minstrel_ht_exit(void);
  #else
  static inline int rc80211_minstrel_ht_init(void)
  {
  	return 0;
  }
  static inline void rc80211_minstrel_ht_exit(void)
  {
  }
  #endif
  
  
  #endif /* IEEE80211_RATE_H */