diff options
Diffstat (limited to 'sys/net80211/ieee80211_ht.h')
| -rw-r--r-- | sys/net80211/ieee80211_ht.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/sys/net80211/ieee80211_ht.h b/sys/net80211/ieee80211_ht.h new file mode 100644 index 000000000000..fc87f1f1abaf --- /dev/null +++ b/sys/net80211/ieee80211_ht.h @@ -0,0 +1,113 @@ +/*- + * Copyright (c) 2007 Sam Leffler, Errno Consulting + * 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. + * + * $FreeBSD$ + */ +#ifndef _NET80211_IEEE80211_HT_H_ +#define _NET80211_IEEE80211_HT_H_ + +/* + * 802.11n protocol implementation definitions. + */ + +#define IEEE80211_SEND_ACTION(_ni,_cat, _act, _args) \ + ((*(_ic)->ic_send_action)(_ni, _cat, _act, _args)) + +#define IEEE80211_AGGR_BAWMAX 64 /* max block ack window size */ + +typedef uint16_t ieee80211_seq; + +struct ieee80211_tx_ampdu { + u_short txa_flags; +#define IEEE80211_AGGR_IMMEDIATE 0x0001 /* BA policy */ +#define IEEE80211_AGGR_XCHGPEND 0x0002 /* ADDBA response pending */ +#define IEEE80211_AGGR_RUNNING 0x0004 /* ADDBA response received */ +#define IEEE80211_AGGR_SETUP 0x0008 /* deferred state setup */ + uint8_t txa_ac; + uint8_t txa_token; /* dialog token */ + int txa_qbytes; /* data queued (bytes) */ + short txa_qframes; /* data queued (frames) */ + ieee80211_seq txa_seqstart; + ieee80211_seq txa_start; + uint16_t txa_wnd; /* BA window size */ + uint8_t txa_attempts; /* # setup attempts */ + int txa_lastrequest;/* time of last ADDBA request */ + struct ifqueue txa_q; /* packet queue */ + struct callout txa_timer; +}; + +/* return non-zero if AMPDU tx for the TID is running */ +#define IEEE80211_AMPDU_RUNNING(tap) \ + (((tap)->txa_flags & IEEE80211_AGGR_RUNNING) != 0) + +/* return non-zero if AMPDU tx for the TID is running or started */ +#define IEEE80211_AMPDU_REQUESTED(tap) \ + (((tap)->txa_flags & \ + (IEEE80211_AGGR_RUNNING|IEEE80211_AGGR_XCHGPEND)) != 0) + +struct ieee80211_rx_ampdu { + int rxa_flags; + int rxa_qbytes; /* data queued (bytes) */ + short rxa_qframes; /* data queued (frames) */ + ieee80211_seq rxa_seqstart; + ieee80211_seq rxa_start; /* start of current BA window */ + ieee80211_seq rxa_nxt; /* next seq# in BA window */ + uint16_t rxa_wnd; /* BA window size */ + struct mbuf *rxa_m[IEEE80211_AGGR_BAWMAX]; +}; + +void ieee80211_ht_attach(struct ieee80211com *); +void ieee80211_ht_detach(struct ieee80211com *); + +void ieee80211_ht_announce(struct ieee80211com *); + +extern const int ieee80211_htrates[16]; +const struct ieee80211_htrateset *ieee80211_get_suphtrates( + struct ieee80211com *, const struct ieee80211_channel *); + +struct ieee80211_node; +int ieee80211_setup_htrates(struct ieee80211_node *, + const uint8_t *htcap, int flags); +void ieee80211_setup_basic_htrates(struct ieee80211_node *, + const uint8_t *htinfo); +struct mbuf *ieee80211_decap_amsdu(struct ieee80211_node *, struct mbuf *); +int ieee80211_ampdu_reorder(struct ieee80211_node *, struct mbuf *); +void ieee80211_recv_bar(struct ieee80211_node *, struct mbuf *); +void ieee80211_ht_node_init(struct ieee80211_node *, const uint8_t *); +void ieee80211_ht_node_cleanup(struct ieee80211_node *); +void ieee80211_parse_htcap(struct ieee80211_node *, const uint8_t *); +void ieee80211_parse_htinfo(struct ieee80211_node *, const uint8_t *); +void ieee80211_recv_action(struct ieee80211_node *, + const uint8_t *, const uint8_t *); +int ieee80211_ampdu_request(struct ieee80211_node *, + struct ieee80211_tx_ampdu *); +int ieee80211_send_bar(struct ieee80211_node *, + const struct ieee80211_tx_ampdu *); +int ieee80211_send_action(struct ieee80211_node *, + int, int, uint16_t [4]); +uint8_t *ieee80211_add_htcap(uint8_t *, struct ieee80211_node *); +uint8_t *ieee80211_add_htcap_vendor(uint8_t *, struct ieee80211_node *); +uint8_t *ieee80211_add_htinfo(uint8_t *, struct ieee80211_node *); +uint8_t *ieee80211_add_htinfo_vendor(uint8_t *, struct ieee80211_node *); +#endif /* _NET80211_IEEE80211_HT_H_ */ |