1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2010 Bernhard Schmidt <bschmidt@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 #include "opt_wlan.h"
30
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/malloc.h>
35 #include <sys/module.h>
36 #include <sys/socket.h>
37 #include <sys/sysctl.h>
38
39 #include <net/if.h>
40 #include <net/if_media.h>
41 #include <net/ethernet.h>
42
43 #ifdef INET
44 #include <netinet/in.h>
45 #include <netinet/if_ether.h>
46 #endif
47
48 #include <net80211/ieee80211_var.h>
49 #include <net80211/ieee80211_ratectl.h>
50
51 static void
none_init(struct ieee80211vap * vap)52 none_init(struct ieee80211vap *vap)
53 {
54 }
55
56 static void
none_deinit(struct ieee80211vap * vap)57 none_deinit(struct ieee80211vap *vap)
58 {
59 IEEE80211_FREE(vap->iv_rs, M_80211_RATECTL);
60 }
61
62 static void
none_node_init(struct ieee80211_node * ni)63 none_node_init(struct ieee80211_node *ni)
64 {
65 ieee80211_node_set_txrate_dot11rate(ni,
66 ni->ni_rates.rs_rates[0] & IEEE80211_RATE_VAL);
67 }
68
69 static void
none_node_deinit(struct ieee80211_node * ni)70 none_node_deinit(struct ieee80211_node *ni)
71 {
72 }
73
74 static int
none_rate(struct ieee80211_node * ni,void * arg __unused,uint32_t iarg __unused)75 none_rate(struct ieee80211_node *ni, void *arg __unused, uint32_t iarg __unused)
76 {
77 int rix = 0;
78
79 ieee80211_node_set_txrate_dot11rate(ni,
80 ni->ni_rates.rs_rates[rix] & IEEE80211_RATE_VAL);
81 return rix;
82 }
83
84 static void
none_tx_complete(const struct ieee80211_node * ni,const struct ieee80211_ratectl_tx_status * status)85 none_tx_complete(const struct ieee80211_node *ni,
86 const struct ieee80211_ratectl_tx_status *status)
87 {
88 }
89
90 static void
none_tx_update(struct ieee80211vap * vap,struct ieee80211_ratectl_tx_stats * stats)91 none_tx_update(struct ieee80211vap *vap,
92 struct ieee80211_ratectl_tx_stats *stats)
93 {
94 }
95
96 static void
none_setinterval(const struct ieee80211vap * vap,int msecs)97 none_setinterval(const struct ieee80211vap *vap, int msecs)
98 {
99 }
100
101 /* number of references from net80211 layer */
102 static int nrefs = 0;
103
104 static const struct ieee80211_ratectl none = {
105 .ir_name = "none",
106 .ir_attach = NULL,
107 .ir_detach = NULL,
108 .ir_init = none_init,
109 .ir_deinit = none_deinit,
110 .ir_node_init = none_node_init,
111 .ir_node_deinit = none_node_deinit,
112 .ir_rate = none_rate,
113 .ir_tx_complete = none_tx_complete,
114 .ir_tx_update = none_tx_update,
115 .ir_setinterval = none_setinterval,
116 };
117 IEEE80211_RATECTL_MODULE(ratectl_none, 1);
118 IEEE80211_RATECTL_ALG(none, IEEE80211_RATECTL_NONE, none);
119