ieee80211_tdma.h revision 190455
113240Sprr/*- 213240Sprr * Copyright (c) 2007-2009 Sam Leffler, Errno Consulting 313240Sprr * Copyright (c) 2007-2009 Intel Corporation 413240Sprr * All rights reserved. 513240Sprr * 613240Sprr * Redistribution and use in source and binary forms, with or without 713240Sprr * modification, are permitted provided that the following conditions 813240Sprr * are met: 913240Sprr * 1. Redistributions of source code must retain the above copyright 1013240Sprr * notice, this list of conditions and the following disclaimer. 1113240Sprr * 2. Redistributions in binary form must reproduce the above copyright 1213240Sprr * notice, this list of conditions and the following disclaimer in the 1313240Sprr * documentation and/or other materials provided with the distribution. 1413240Sprr * 1513240Sprr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1613240Sprr * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1713240Sprr * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1813240Sprr * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 1913240Sprr * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2013240Sprr * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2113240Sprr * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2213240Sprr * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2313240Sprr * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2413240Sprr * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2513240Sprr * 2613240Sprr * $FreeBSD: head/sys/net80211/ieee80211_tdma.h 190455 2009-03-26 21:29:03Z sam $ 2713240Sprr */ 2813240Sprr#ifndef _NET80211_IEEE80211_TDMA_H_ 2913240Sprr#define _NET80211_IEEE80211_TDMA_H_ 3013240Sprr 3113240Sprr/* 3213240Sprr * TDMA-mode implementation definitions. 3313240Sprr */ 3413240Sprr 3513240Sprr#define TDMA_SUBTYPE_PARAM 0x01 3613240Sprr#define TDMA_VERSION_V2 2 3713240Sprr#define TDMA_VERSION TDMA_VERSION_V2 3813240Sprr 3913240Sprr/* NB: we only support 2 right now but protocol handles up to 8 */ 4013240Sprr#define TDMA_MAXSLOTS 2 /* max slots/sta's */ 4113240Sprr 4213240Sprr#define TDMA_PARAM_LEN_V2 sizeof(struct ieee80211_tdma_param) 4313240Sprr 4413240Sprr/* 4513240Sprr * TDMA information element. 4613240Sprr */ 4713240Sprrstruct ieee80211_tdma_param { 4813240Sprr u_int8_t tdma_id; /* IEEE80211_ELEMID_VENDOR */ 4913240Sprr u_int8_t tdma_len; 5013240Sprr u_int8_t tdma_oui[3]; /* TDMA_OUI */ 5113240Sprr u_int8_t tdma_type; /* TDMA_OUI_TYPE */ 5213240Sprr u_int8_t tdma_subtype; /* TDMA_SUBTYPE_PARAM */ 5313240Sprr u_int8_t tdma_version; /* spec revision */ 5413240Sprr u_int8_t tdma_slot; /* station slot # [0..7] */ 5513240Sprr u_int8_t tdma_slotcnt; /* bss slot count [1..8] */ 5613240Sprr u_int16_t tdma_slotlen; /* bss slot len (100us) */ 5713240Sprr u_int8_t tdma_bintval; /* beacon interval (superframes) */ 5813240Sprr u_int8_t tdma_inuse[1]; /* slot occupancy map */ 5913240Sprr u_int8_t tdma_pad[2]; 6013240Sprr u_int8_t tdma_tstamp[8]; /* timestamp from last beacon */ 6113240Sprr} __packed; 6213240Sprr 6313240Sprr#ifdef _KERNEL 6413240Sprr/* 6513240Sprr * Implementation state. 6613240Sprr */ 6713240Sprrstruct ieee80211_tdma_state { 6813240Sprr u_int tdma_slotlen; /* bss slot length (us) */ 6913240Sprr uint8_t tdma_version; /* protocol version to use */ 7013240Sprr uint8_t tdma_slotcnt; /* bss slot count */ 7113240Sprr uint8_t tdma_bintval; /* beacon interval (slots) */ 7213240Sprr uint8_t tdma_slot; /* station slot # */ 7313240Sprr uint8_t tdma_inuse[1]; /* mask of slots in use */ 7413240Sprr uint8_t tdma_active[1]; /* mask of active slots */ 7513240Sprr int tdma_count; /* active/inuse countdown */ 7613240Sprr void *tdma_peer; /* peer station cookie */ 7713240Sprr struct timeval tdma_lastprint; /* time of last rate-limited printf */ 7813240Sprr int tdma_fails; /* fail count for rate-limiting */ 7913240Sprr 8013240Sprr /* parent method pointers */ 8113240Sprr int (*tdma_newstate)(struct ieee80211vap *, enum ieee80211_state, 8213240Sprr int arg); 8313240Sprr void (*tdma_recv_mgmt)(struct ieee80211_node *, 8413240Sprr struct mbuf *, int, int, int, uint32_t); 8513240Sprr void (*tdma_opdetach)(struct ieee80211vap *); 8613240Sprr}; 8713240Sprr 8813240Sprr#define TDMA_UPDATE_SLOT 0x0001 /* tdma_slot changed */ 8913240Sprr#define TDMA_UPDATE_SLOTCNT 0x0002 /* tdma_slotcnt changed */ 9013240Sprr#define TDMA_UPDATE_SLOTLEN 0x0004 /* tdma_slotlen changed */ 9113240Sprr#define TDMA_UPDATE_BINTVAL 0x0008 /* tdma_bintval changed */ 9213240Sprr 9313240Sprrvoid ieee80211_tdma_vattach(struct ieee80211vap *); 9413240Sprr 9513240Sprrint ieee80211_tdma_getslot(struct ieee80211vap *vap); 9613240Sprrvoid ieee80211_parse_tdma(struct ieee80211_node *ni, const uint8_t *ie); 9713240Sprruint8_t *ieee80211_add_tdma(uint8_t *frm, struct ieee80211vap *vap); 9813240Sprrstruct ieee80211_beacon_offsets; 9913240Sprrvoid ieee80211_tdma_update_beacon(struct ieee80211vap *vap, 10013240Sprr struct ieee80211_beacon_offsets *bo); 10113240Sprr#endif /* _KERNEL */ 10213240Sprr#endif /* !_NET80211_IEEE80211_TDMA_H_ */ 10313240Sprr