ieee80211_ratectl_none.c revision 215244 
1/*-
2 * Copyright (c) 2010 Bernhard Schmidt <bschmidt@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_ratectl_none.c 215244 2010-11-13 14:59:54Z bschmidt $");
28
29#include "opt_wlan.h"
30
31#include <sys/param.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <sys/socket.h>
35#include <sys/sysctl.h>
36
37#include <net/if.h>
38#include <net/if_media.h>
39
40#ifdef INET
41#include <netinet/in.h>
42#include <netinet/if_ether.h>
43#endif
44
45#include <net80211/ieee80211_var.h>
46#include <net80211/ieee80211_ratectl.h>
47
48static void
49none_init(struct ieee80211vap *vap)
50{
51}
52
53static void
54none_deinit(struct ieee80211vap *vap)
55{
56	free(vap->iv_rs, M_80211_RATECTL);
57}
58
59static void
60none_node_init(struct ieee80211_node *ni)
61{
62	ni->ni_txrate = ni->ni_rates.rs_rates[0] & IEEE80211_RATE_VAL;
63}
64
65static void
66none_node_deinit(struct ieee80211_node *ni)
67{
68}
69
70static int
71none_rate(struct ieee80211_node *ni, void *arg __unused, uint32_t iarg __unused)
72{
73	int rix = 0;
74
75	ni->ni_txrate = ni->ni_rates.rs_rates[rix] & IEEE80211_RATE_VAL;
76	return rix;
77}
78
79static void
80none_tx_complete(const struct ieee80211vap *vap,
81    const struct ieee80211_node *ni, int ok,
82    void *arg1, void *arg2 __unused)
83{
84}
85
86static void
87none_tx_update(const struct ieee80211vap *vap, const struct ieee80211_node *ni,
88    void *arg1, void *arg2, void *arg3)
89{
90}
91
92static void
93none_setinterval(const struct ieee80211vap *vap, int msecs)
94{
95}
96
97/* number of references from net80211 layer */
98static	int nrefs = 0;
99
100static const struct ieee80211_ratectl none = {
101	.ir_name	= "none",
102	.ir_attach	= NULL,
103	.ir_detach	= NULL,
104	.ir_init	= none_init,
105	.ir_deinit	= none_deinit,
106	.ir_node_init	= none_node_init,
107	.ir_node_deinit	= none_node_deinit,
108	.ir_rate	= none_rate,
109	.ir_tx_complete	= none_tx_complete,
110	.ir_tx_update	= none_tx_update,
111	.ir_setinterval	= none_setinterval,
112};
113IEEE80211_RATECTL_MODULE(ratectl_none, 1);
114IEEE80211_RATECTL_ALG(none, IEEE80211_RATECTL_NONE, none);
115