ieee80211_tdma.h revision 189981 
1/*-
2 * Copyright (c) 2007-2009 Sam Leffler, Errno Consulting
3 * Copyright (c) 2007-2009 Intel Corporation
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/net80211/ieee80211_tdma.h 189981 2009-03-18 19:38:39Z sam $
27 */
28#ifndef _NET80211_IEEE80211_TDMA_H_
29#define _NET80211_IEEE80211_TDMA_H_
30
31/*
32 * TDMA-mode implementation definitions.
33 */
34struct ieee80211_tdma_state {
35	u_int	tdma_slotlen;		/* bss slot length (us) */
36	uint8_t	tdma_version;		/* protocol version to use */
37	uint8_t	tdma_slotcnt;		/* bss slot count */
38	uint8_t	tdma_bintval;		/* beacon interval (slots) */
39	uint8_t	tdma_slot;		/* station slot # */
40	uint8_t	tdma_inuse[1];		/* mask of slots in use */
41	uint8_t	tdma_active[1];		/* mask of active slots */
42	int	tdma_count;		/* active/inuse countdown */
43	void	*tdma_peer;		/* peer station cookie */
44	struct timeval tdma_lastprint;	/* time of last rate-limited printf */
45	int	tdma_fails;		/* fail count for rate-limiting */
46
47	/* parent method pointers */
48	int	(*tdma_newstate)(struct ieee80211vap *, enum ieee80211_state,
49		    int arg);
50	void	(*tdma_recv_mgmt)(struct ieee80211_node *,
51		    struct mbuf *, int, int, int, uint32_t);
52	void	(*tdma_opdetach)(struct ieee80211vap *);
53};
54
55#define	TDMA_UPDATE_SLOT	0x0001	/* tdma_slot changed */
56#define	TDMA_UPDATE_SLOTCNT	0x0002	/* tdma_slotcnt changed */
57#define	TDMA_UPDATE_SLOTLEN	0x0004	/* tdma_slotlen changed */
58#define	TDMA_UPDATE_BINTVAL	0x0008	/* tdma_bintval changed */
59
60void	ieee80211_tdma_vattach(struct ieee80211vap *);
61
62int	ieee80211_tdma_getslot(struct ieee80211vap *vap);
63void	ieee80211_parse_tdma(struct ieee80211_node *ni, const uint8_t *ie);
64uint8_t *ieee80211_add_tdma(uint8_t *frm, struct ieee80211vap *vap);
65struct ieee80211_beacon_offsets;
66void	ieee80211_tdma_update_beacon(struct ieee80211vap *vap,
67	    struct ieee80211_beacon_offsets *bo);
68struct ieee80211req;
69int	ieee80211_tdma_ioctl_get80211(struct ieee80211vap *vap,
70	    struct ieee80211req *ireq);
71int	ieee80211_tdma_ioctl_set80211(struct ieee80211vap *vap,
72	    struct ieee80211req *ireq);
73#endif /* !_NET80211_IEEE80211_TDMA_H_ */
74