Current Path : /sys/net80211/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/net80211/ieee80211_ratectl.c |
/*- * Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/net80211/ieee80211_ratectl.c 214894 2010-11-06 18:17:20Z bschmidt $"); #include <sys/param.h> #include <sys/kernel.h> #include <sys/systm.h> #include <sys/socket.h> #include <net/if.h> #include <net/if_media.h> #include <net80211/ieee80211_var.h> #include <net80211/ieee80211_ratectl.h> static const struct ieee80211_ratectl *ratectls[IEEE80211_RATECTL_MAX]; static const char *ratectl_modnames[IEEE80211_RATECTL_MAX] = { [IEEE80211_RATECTL_AMRR] = "wlan_amrr", [IEEE80211_RATECTL_RSSADAPT] = "wlan_rssadapt", [IEEE80211_RATECTL_ONOE] = "wlan_onoe", [IEEE80211_RATECTL_SAMPLE] = "wlan_sample", [IEEE80211_RATECTL_NONE] = "wlan_none", }; MALLOC_DEFINE(M_80211_RATECTL, "80211ratectl", "802.11 rate control"); void ieee80211_ratectl_register(int type, const struct ieee80211_ratectl *ratectl) { if (type >= IEEE80211_RATECTL_MAX) return; ratectls[type] = ratectl; } void ieee80211_ratectl_unregister(int type) { if (type >= IEEE80211_RATECTL_MAX) return; ratectls[type] = NULL; } void ieee80211_ratectl_init(struct ieee80211vap *vap) { if (vap->iv_rate == ratectls[IEEE80211_RATECTL_NONE]) ieee80211_ratectl_set(vap, IEEE80211_RATECTL_AMRR); vap->iv_rate->ir_init(vap); } void ieee80211_ratectl_set(struct ieee80211vap *vap, int type) { if (type >= IEEE80211_RATECTL_MAX) return; if (ratectls[type] == NULL) { ieee80211_load_module(ratectl_modnames[type]); if (ratectls[type] == NULL) { IEEE80211_DPRINTF(vap, IEEE80211_MSG_RATECTL, "%s: unable to load algo %u, module %s\n", __func__, type, ratectl_modnames[type]); vap->iv_rate = ratectls[IEEE80211_RATECTL_NONE]; return; } } vap->iv_rate = ratectls[type]; }