2 * Copyright (c) 2007 Sam Leffler, Errno Consulting
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.
27 #ifndef _NET80211_IEEE80211_HT_H_
28 #define _NET80211_IEEE80211_HT_H_
31 * 802.11n protocol implementation definitions.
34 #define IEEE80211_SEND_ACTION(_ni,_cat, _act, _args) \
35 ((*(_ic)->ic_send_action)(_ni, _cat, _act, _args))
37 #define IEEE80211_AGGR_BAWMAX 64 /* max block ack window size */
39 typedef uint16_t ieee80211_seq;
41 struct ieee80211_tx_ampdu {
43 #define IEEE80211_AGGR_IMMEDIATE 0x0001 /* BA policy */
44 #define IEEE80211_AGGR_XCHGPEND 0x0002 /* ADDBA response pending */
45 #define IEEE80211_AGGR_RUNNING 0x0004 /* ADDBA response received */
46 #define IEEE80211_AGGR_SETUP 0x0008 /* deferred state setup */
48 uint8_t txa_token; /* dialog token */
49 int txa_qbytes; /* data queued (bytes) */
50 short txa_qframes; /* data queued (frames) */
51 ieee80211_seq txa_seqstart;
52 ieee80211_seq txa_start;
53 uint16_t txa_wnd; /* BA window size */
54 uint8_t txa_attempts; /* # setup attempts */
55 int txa_lastrequest;/* time of last ADDBA request */
56 struct ifqueue txa_q; /* packet queue */
57 struct callout txa_timer;
60 /* return non-zero if AMPDU tx for the TID is running */
61 #define IEEE80211_AMPDU_RUNNING(tap) \
62 (((tap)->txa_flags & IEEE80211_AGGR_RUNNING) != 0)
64 /* return non-zero if AMPDU tx for the TID is running or started */
65 #define IEEE80211_AMPDU_REQUESTED(tap) \
66 (((tap)->txa_flags & \
67 (IEEE80211_AGGR_RUNNING|IEEE80211_AGGR_XCHGPEND)) != 0)
69 struct ieee80211_rx_ampdu {
71 int rxa_qbytes; /* data queued (bytes) */
72 short rxa_qframes; /* data queued (frames) */
73 ieee80211_seq rxa_seqstart;
74 ieee80211_seq rxa_start; /* start of current BA window */
75 ieee80211_seq rxa_nxt; /* next seq# in BA window */
76 uint16_t rxa_wnd; /* BA window size */
77 struct mbuf *rxa_m[IEEE80211_AGGR_BAWMAX];
80 void ieee80211_ht_attach(struct ieee80211com *);
81 void ieee80211_ht_detach(struct ieee80211com *);
83 void ieee80211_ht_announce(struct ieee80211com *);
85 extern const int ieee80211_htrates[16];
86 const struct ieee80211_htrateset *ieee80211_get_suphtrates(
87 struct ieee80211com *, const struct ieee80211_channel *);
89 struct ieee80211_node;
90 int ieee80211_setup_htrates(struct ieee80211_node *,
91 const uint8_t *htcap, int flags);
92 void ieee80211_setup_basic_htrates(struct ieee80211_node *,
93 const uint8_t *htinfo);
94 struct mbuf *ieee80211_decap_amsdu(struct ieee80211_node *, struct mbuf *);
95 int ieee80211_ampdu_reorder(struct ieee80211_node *, struct mbuf *);
96 void ieee80211_recv_bar(struct ieee80211_node *, struct mbuf *);
97 void ieee80211_ht_node_init(struct ieee80211_node *, const uint8_t *);
98 void ieee80211_ht_node_cleanup(struct ieee80211_node *);
99 void ieee80211_parse_htcap(struct ieee80211_node *, const uint8_t *);
100 void ieee80211_parse_htinfo(struct ieee80211_node *, const uint8_t *);
101 void ieee80211_recv_action(struct ieee80211_node *,
102 const uint8_t *, const uint8_t *);
103 int ieee80211_ampdu_request(struct ieee80211_node *,
104 struct ieee80211_tx_ampdu *);
105 int ieee80211_send_bar(struct ieee80211_node *,
106 const struct ieee80211_tx_ampdu *);
107 int ieee80211_send_action(struct ieee80211_node *,
108 int, int, uint16_t [4]);
109 uint8_t *ieee80211_add_htcap(uint8_t *, struct ieee80211_node *);
110 uint8_t *ieee80211_add_htcap_vendor(uint8_t *, struct ieee80211_node *);
111 uint8_t *ieee80211_add_htinfo(uint8_t *, struct ieee80211_node *);
112 uint8_t *ieee80211_add_htinfo_vendor(uint8_t *, struct ieee80211_node *);
113 struct ieee80211_beacon_offsets;
114 void ieee80211_ht_update_beacon(struct ieee80211com *,
115 struct ieee80211_beacon_offsets *);
116 #endif /* _NET80211_IEEE80211_HT_H_ */