fe267a5590
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
106 lines
4.0 KiB
C
106 lines
4.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2007-2009 Sam Leffler, Errno Consulting
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* Copyright (c) 2007-2009 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NET80211_IEEE80211_TDMA_H_
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#define _NET80211_IEEE80211_TDMA_H_
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/*
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* TDMA-mode implementation definitions.
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*/
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#define TDMA_SUBTYPE_PARAM 0x01
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#define TDMA_VERSION_V2 2
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#define TDMA_VERSION TDMA_VERSION_V2
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/* NB: we only support 2 right now but protocol handles up to 8 */
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#define TDMA_MAXSLOTS 2 /* max slots/sta's */
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#define TDMA_PARAM_LEN_V2 sizeof(struct ieee80211_tdma_param)
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/*
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* TDMA information element.
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*/
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struct ieee80211_tdma_param {
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u_int8_t tdma_id; /* IEEE80211_ELEMID_VENDOR */
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u_int8_t tdma_len;
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u_int8_t tdma_oui[3]; /* TDMA_OUI */
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u_int8_t tdma_type; /* TDMA_OUI_TYPE */
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u_int8_t tdma_subtype; /* TDMA_SUBTYPE_PARAM */
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u_int8_t tdma_version; /* spec revision */
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u_int8_t tdma_slot; /* station slot # [0..7] */
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u_int8_t tdma_slotcnt; /* bss slot count [1..8] */
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u_int16_t tdma_slotlen; /* bss slot len (100us) */
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u_int8_t tdma_bintval; /* beacon interval (superframes) */
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u_int8_t tdma_inuse[1]; /* slot occupancy map */
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u_int8_t tdma_pad[2];
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u_int8_t tdma_tstamp[8]; /* timestamp from last beacon */
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} __packed;
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#ifdef _KERNEL
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/*
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* Implementation state.
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*/
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struct ieee80211_tdma_state {
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u_int tdma_slotlen; /* bss slot length (us) */
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uint8_t tdma_version; /* protocol version to use */
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uint8_t tdma_slotcnt; /* bss slot count */
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uint8_t tdma_bintval; /* beacon interval (slots) */
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uint8_t tdma_slot; /* station slot # */
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uint8_t tdma_inuse[1]; /* mask of slots in use */
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uint8_t tdma_active[1]; /* mask of active slots */
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int tdma_count; /* active/inuse countdown */
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void *tdma_peer; /* peer station cookie */
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struct timeval tdma_lastprint; /* time of last rate-limited printf */
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int tdma_fails; /* fail count for rate-limiting */
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/* parent method pointers */
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int (*tdma_newstate)(struct ieee80211vap *, enum ieee80211_state,
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int arg);
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void (*tdma_recv_mgmt)(struct ieee80211_node *,
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struct mbuf *, int,
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const struct ieee80211_rx_stats *rxs, int, int);
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void (*tdma_opdetach)(struct ieee80211vap *);
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};
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#define TDMA_UPDATE_SLOT 0x0001 /* tdma_slot changed */
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#define TDMA_UPDATE_SLOTCNT 0x0002 /* tdma_slotcnt changed */
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#define TDMA_UPDATE_SLOTLEN 0x0004 /* tdma_slotlen changed */
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#define TDMA_UPDATE_BINTVAL 0x0008 /* tdma_bintval changed */
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void ieee80211_tdma_vattach(struct ieee80211vap *);
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int ieee80211_tdma_getslot(struct ieee80211vap *vap);
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void ieee80211_parse_tdma(struct ieee80211_node *ni, const uint8_t *ie);
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uint8_t *ieee80211_add_tdma(uint8_t *frm, struct ieee80211vap *vap);
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struct ieee80211_beacon_offsets;
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void ieee80211_tdma_update_beacon(struct ieee80211vap *vap,
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struct ieee80211_beacon_offsets *bo);
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#endif /* _KERNEL */
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#endif /* !_NET80211_IEEE80211_TDMA_H_ */
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