2 * Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/param.h>
30 #include <sys/kernel.h>
31 #include <sys/systm.h>
32 #include <sys/socket.h>
35 #include <net/if_media.h>
37 #include <net80211/ieee80211_var.h>
38 #include <net80211/ieee80211_ratectl.h>
40 static const struct ieee80211_ratectl *ratectls[IEEE80211_RATECTL_MAX];
42 static const char *ratectl_modnames[IEEE80211_RATECTL_MAX] = {
43 [IEEE80211_RATECTL_AMRR] = "wlan_amrr",
44 [IEEE80211_RATECTL_RSSADAPT] = "wlan_rssadapt",
45 [IEEE80211_RATECTL_ONOE] = "wlan_onoe",
46 [IEEE80211_RATECTL_SAMPLE] = "wlan_sample",
47 [IEEE80211_RATECTL_NONE] = "wlan_none",
50 MALLOC_DEFINE(M_80211_RATECTL, "80211ratectl", "802.11 rate control");
53 ieee80211_ratectl_register(int type, const struct ieee80211_ratectl *ratectl)
55 if (type >= IEEE80211_RATECTL_MAX)
57 ratectls[type] = ratectl;
61 ieee80211_ratectl_unregister(int type)
63 if (type >= IEEE80211_RATECTL_MAX)
65 ratectls[type] = NULL;
69 ieee80211_ratectl_init(struct ieee80211vap *vap)
71 if (vap->iv_rate == ratectls[IEEE80211_RATECTL_NONE])
72 ieee80211_ratectl_set(vap, IEEE80211_RATECTL_AMRR);
73 vap->iv_rate->ir_init(vap);
77 ieee80211_ratectl_set(struct ieee80211vap *vap, int type)
79 if (type >= IEEE80211_RATECTL_MAX)
81 if (ratectls[type] == NULL) {
82 ieee80211_load_module(ratectl_modnames[type]);
83 if (ratectls[type] == NULL) {
84 IEEE80211_DPRINTF(vap, IEEE80211_MSG_RATECTL,
85 "%s: unable to load algo %u, module %s\n",
86 __func__, type, ratectl_modnames[type]);
87 vap->iv_rate = ratectls[IEEE80211_RATECTL_NONE];
91 vap->iv_rate = ratectls[type];