[net-next-2.6.git] / net / mac80211 / rate.h

/*
 * 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 <linux/kref.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "sta_info.h"

struct rate_control_ref {
	struct ieee80211_local *local;
	struct rate_control_ops *ops;
	void *priv;
	struct kref kref;
};

void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
			   struct sta_info *sta,
			   struct ieee80211_tx_rate_control *txrc);
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 ieee80211_supported_band *sband,
					  struct sta_info *sta,
					  struct sk_buff *skb)
{
	struct rate_control_ref *ref = local->rate_ctrl;
	struct ieee80211_sta *ista = &sta->sta;
	void *priv_sta = sta->rate_ctrl_priv;

	if (!ref)
		return;

	ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
}


static inline void rate_control_rate_init(struct sta_info *sta)
{
	struct ieee80211_local *local = sta->sdata->local;
	struct rate_control_ref *ref = sta->rate_ctrl;
	struct ieee80211_sta *ista = &sta->sta;
	void *priv_sta = sta->rate_ctrl_priv;
	struct ieee80211_supported_band *sband;

	if (!ref)
		return;

	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];

	ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
}

static inline void rate_control_rate_update(struct ieee80211_local *local,
				    struct ieee80211_supported_band *sband,
				    struct sta_info *sta, u32 changed)
{
	struct rate_control_ref *ref = local->rate_ctrl;
	struct ieee80211_sta *ista = &sta->sta;
	void *priv_sta = sta->rate_ctrl_priv;

	if (ref && ref->ops->rate_update)
		ref->ops->rate_update(ref->priv, sband, ista,
				      priv_sta, changed);
}

static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
					   struct ieee80211_sta *sta,
					   gfp_t gfp)
{
	return ref->ops->alloc_sta(ref->priv, 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
}

/* 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_PID
extern int rc80211_pid_init(void);
extern void rc80211_pid_exit(void);
#else
static inline int rc80211_pid_init(void)
{
	return 0;
}
static inline void rc80211_pid_exit(void)
{
}
#endif

#ifdef CONFIG_MAC80211_RC_MINSTREL
extern int rc80211_minstrel_init(void);
extern void rc80211_minstrel_exit(void);
#else
static inline int rc80211_minstrel_init(void)
{
	return 0;
}
static inline void rc80211_minstrel_exit(void)
{
}
#endif


#endif /* IEEE80211_RATE_H */
Commit	Line	Data
f0706e82 JB	1	/*
	2	* Copyright 2002-2005, Instant802 Networks, Inc.
	3	* Copyright 2005, Devicescape Software, Inc.
	4	* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10
	11	#ifndef IEEE80211_RATE_H
	12	#define IEEE80211_RATE_H
	13
	14	#include <linux/netdevice.h>
	15	#include <linux/skbuff.h>
	16	#include <linux/types.h>
d0709a65	17	#include <linux/kref.h>
f0706e82 JB	18	#include <net/mac80211.h>
	19	#include "ieee80211_i.h"
	20	#include "sta_info.h"
	21
f0706e82	22	struct rate_control_ref {
4b7679a5	23	struct ieee80211_local *local;
f0706e82 JB	24	struct rate_control_ops *ops;
	25	void *priv;
	26	struct kref kref;
	27	};
	28
4b7679a5	29	void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
e6a9854b JB	30	struct sta_info *sta,
e6a9854b JB	31	struct ieee80211_tx_rate_control *txrc);
f0706e82 JB	32	struct rate_control_ref rate_control_get(struct rate_control_ref ref);
	33	void rate_control_put(struct rate_control_ref *ref);
	34
4b7679a5 JB	35	static inline void rate_control_tx_status(struct ieee80211_local *local,
	36	struct ieee80211_supported_band *sband,
	37	struct sta_info *sta,
e039fa4a	38	struct sk_buff *skb)
f0706e82 JB	39	{
f0706e82 JB	40	struct rate_control_ref *ref = local->rate_ctrl;
4b7679a5 JB	41	struct ieee80211_sta *ista = &sta->sta;
4b7679a5 JB	42	void *priv_sta = sta->rate_ctrl_priv;
3c384053 V	43
	44	if (!ref)
	45	return;
	46
37eb0b16	47	ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
f0706e82 JB	48	}
	49
	50
4b7679a5	51	static inline void rate_control_rate_init(struct sta_info *sta)
f0706e82	52	{
4b7679a5	53	struct ieee80211_local *local = sta->sdata->local;
f0706e82	54	struct rate_control_ref *ref = sta->rate_ctrl;
4b7679a5 JB	55	struct ieee80211_sta *ista = &sta->sta;
	56	void *priv_sta = sta->rate_ctrl_priv;
	57	struct ieee80211_supported_band *sband;
	58
af65cd96 JB	59	if (!ref)
	60	return;
	61
4b7679a5 JB	62	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
	63
	64	ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
f0706e82 JB	65	}
f0706e82 JB	66
81cb7623 S	67	static inline void rate_control_rate_update(struct ieee80211_local *local,
	68	struct ieee80211_supported_band *sband,
	69	struct sta_info *sta, u32 changed)
	70	{
	71	struct rate_control_ref *ref = local->rate_ctrl;
	72	struct ieee80211_sta *ista = &sta->sta;
	73	void *priv_sta = sta->rate_ctrl_priv;
	74
af65cd96	75	if (ref && ref->ops->rate_update)
81cb7623 S	76	ref->ops->rate_update(ref->priv, sband, ista,
	77	priv_sta, changed);
	78	}
f0706e82	79
f0706e82	80	static inline void rate_control_alloc_sta(struct rate_control_ref ref,
4b7679a5	81	struct ieee80211_sta *sta,
f0706e82 JB	82	gfp_t gfp)
f0706e82 JB	83	{
4b7679a5	84	return ref->ops->alloc_sta(ref->priv, sta, gfp);
f0706e82 JB	85	}
f0706e82 JB	86
4b7679a5	87	static inline void rate_control_free_sta(struct sta_info *sta)
f0706e82	88	{
4b7679a5 JB	89	struct rate_control_ref *ref = sta->rate_ctrl;
	90	struct ieee80211_sta *ista = &sta->sta;
	91	void *priv_sta = sta->rate_ctrl_priv;
	92
	93	ref->ops->free_sta(ref->priv, ista, priv_sta);
f0706e82 JB	94	}
f0706e82 JB	95
e9f207f0 JB	96	static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
	97	{
	98	#ifdef CONFIG_MAC80211_DEBUGFS
	99	struct rate_control_ref *ref = sta->rate_ctrl;
af65cd96	100	if (ref && sta->debugfs.dir && ref->ops->add_sta_debugfs)
e9f207f0 JB	101	ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
	102	sta->debugfs.dir);
	103	#endif
	104	}
	105
	106	static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
	107	{
	108	#ifdef CONFIG_MAC80211_DEBUGFS
	109	struct rate_control_ref *ref = sta->rate_ctrl;
af65cd96	110	if (ref && ref->ops->remove_sta_debugfs)
e9f207f0 JB	111	ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
	112	#endif
	113	}
	114
209c671d AS	115	/* Get a reference to the rate control algorithm. If `name' is NULL, get the
209c671d AS	116	* first available algorithm. */
ff688089 JB	117	int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
	118	const char *name);
	119	void rate_control_deinitialize(struct ieee80211_local *local);
	120
4b475898 JB	121
4b475898 JB	122	/* Rate control algorithms */
e5f5e733	123	#ifdef CONFIG_MAC80211_RC_PID
4b475898 JB	124	extern int rc80211_pid_init(void);
	125	extern void rc80211_pid_exit(void);
	126	#else
	127	static inline int rc80211_pid_init(void)
	128	{
	129	return 0;
	130	}
	131	static inline void rc80211_pid_exit(void)
	132	{
	133	}
	134	#endif
	135
cccf129f FF	136	#ifdef CONFIG_MAC80211_RC_MINSTREL
	137	extern int rc80211_minstrel_init(void);
	138	extern void rc80211_minstrel_exit(void);
	139	#else
	140	static inline int rc80211_minstrel_init(void)
	141	{
	142	return 0;
	143	}
	144	static inline void rc80211_minstrel_exit(void)
	145	{
	146	}
	147	#endif
	148
	149
f0706e82	150	#endif /* IEEE80211_RATE_H */