wlan - Update wlan from Adrian / FreeBSD
[dragonfly.git] / sys / netproto / 802_11 / ieee80211_superg.h
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1/*-
2 * Copyright (c) 2009 Sam Leffler, Errno Consulting
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 *
085ff963 25 * $FreeBSD$
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26 */
27#ifndef _NET80211_IEEE80211_SUPERG_H_
28#define _NET80211_IEEE80211_SUPERG_H_
29
30/*
31 * Atheros' 802.11 SuperG protocol support.
32 */
33
34/*
35 * Atheros advanced capability information element.
36 */
37struct ieee80211_ath_ie {
38 uint8_t ath_id; /* IEEE80211_ELEMID_VENDOR */
39 uint8_t ath_len; /* length in bytes */
40 uint8_t ath_oui[3]; /* ATH_OUI */
41 uint8_t ath_oui_type; /* ATH_OUI_TYPE */
42 uint8_t ath_oui_subtype; /* ATH_OUI_SUBTYPE */
43 uint8_t ath_version; /* spec revision */
44 uint8_t ath_capability; /* capability info */
45#define ATHEROS_CAP_TURBO_PRIME 0x01 /* dynamic turbo--aka Turbo' */
46#define ATHEROS_CAP_COMPRESSION 0x02 /* data compression */
47#define ATHEROS_CAP_FAST_FRAME 0x04 /* fast (jumbo) frames */
48#define ATHEROS_CAP_XR 0x08 /* Xtended Range support */
49#define ATHEROS_CAP_AR 0x10 /* Advanded Radar support */
50#define ATHEROS_CAP_BURST 0x20 /* Bursting - not negotiated */
51#define ATHEROS_CAP_WME 0x40 /* CWMin tuning */
52#define ATHEROS_CAP_BOOST 0x80 /* use turbo/!turbo mode */
53 uint8_t ath_defkeyix[2];
54} __packed;
55
56#define ATH_OUI_VERSION 0x00
57#define ATH_OUI_SUBTYPE 0x01
58
59#ifdef _KERNEL
60struct ieee80211_stageq {
61 struct mbuf *head; /* frames linked w/ m_nextpkt */
62 struct mbuf *tail; /* last frame in queue */
63 int depth; /* # items on head */
64};
65
66struct ieee80211_superg {
67 /* fast-frames staging q */
68 struct ieee80211_stageq ff_stageq[WME_NUM_AC];
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69};
70
71void ieee80211_superg_attach(struct ieee80211com *);
72void ieee80211_superg_detach(struct ieee80211com *);
73void ieee80211_superg_vattach(struct ieee80211vap *);
74void ieee80211_superg_vdetach(struct ieee80211vap *);
75
76uint8_t *ieee80211_add_ath(uint8_t *, uint8_t, ieee80211_keyix);
77uint8_t *ieee80211_add_athcaps(uint8_t *, const struct ieee80211_node *);
78void ieee80211_parse_ath(struct ieee80211_node *, uint8_t *);
79int ieee80211_parse_athparams(struct ieee80211_node *, uint8_t *,
80 const struct ieee80211_frame *);
81
82void ieee80211_ff_node_init(struct ieee80211_node *);
83void ieee80211_ff_node_cleanup(struct ieee80211_node *);
84
85struct mbuf *ieee80211_ff_check(struct ieee80211_node *, struct mbuf *);
86void ieee80211_ff_age(struct ieee80211com *, struct ieee80211_stageq *,
87 int quanta);
88
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89/*
90 * See ieee80211_ff_age() for a description of the locking
91 * expectation here.
92 */
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93static __inline void
94ieee80211_ff_flush(struct ieee80211com *ic, int ac)
95{
96 struct ieee80211_superg *sg = ic->ic_superg;
97
98 if (sg != NULL && sg->ff_stageq[ac].depth)
99 ieee80211_ff_age(ic, &sg->ff_stageq[ac], 0x7fffffff);
100}
101
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102/*
103 * See ieee80211_ff_age() for a description of the locking
104 * expectation here.
105 */
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106static __inline void
107ieee80211_ff_age_all(struct ieee80211com *ic, int quanta)
108{
109 struct ieee80211_superg *sg = ic->ic_superg;
110
085ff963 111 if (sg != NULL) {
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112 if (sg->ff_stageq[WME_AC_VO].depth)
113 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_VO], quanta);
114 if (sg->ff_stageq[WME_AC_VI].depth)
115 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_VI], quanta);
116 if (sg->ff_stageq[WME_AC_BE].depth)
117 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_BE], quanta);
118 if (sg->ff_stageq[WME_AC_BK].depth)
119 ieee80211_ff_age(ic, &sg->ff_stageq[WME_AC_BK], quanta);
120 }
121}
122
123struct mbuf *ieee80211_ff_encap(struct ieee80211vap *, struct mbuf *,
124 int, struct ieee80211_key *);
125
126struct mbuf *ieee80211_ff_decap(struct ieee80211_node *, struct mbuf *);
127
128static __inline struct mbuf *
129ieee80211_decap_fastframe(struct ieee80211vap *vap, struct ieee80211_node *ni,
130 struct mbuf *m)
131{
132 return IEEE80211_ATH_CAP(vap, ni, IEEE80211_NODE_FF) ?
133 ieee80211_ff_decap(ni, m) : m;
134}
135#endif /* _KERNEL */
136#endif /* _NET80211_IEEE80211_SUPERG_H_ */