xref: /freebsd/sys/net80211/ieee80211_tdma.h (revision 39beb93c3f8bdbf72a61fda42300b5ebed7390c8)
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  * $FreeBSD$
27  */
28 #ifndef _NET80211_IEEE80211_TDMA_H_
29 #define _NET80211_IEEE80211_TDMA_H_
30 
31 /*
32  * TDMA-mode implementation definitions.
33  */
34 struct ieee80211_tdma_state {
35 	u_int	tdma_slotlen;		/* bss slot length (us) */
36 	uint8_t	tdma_slotcnt;		/* bss slot count */
37 	uint8_t	tdma_bintval;		/* beacon interval (slots) */
38 	uint8_t	tdma_slot;		/* station slot # */
39 	uint8_t	tdma_inuse[1];		/* mask of slots in use */
40 #define	IEEE80211_TDMA_MAXSLOTS	8
41 	void	*tdma_peer;		/* peer station cookie */
42 	uint8_t	tdma_active[1];		/* mask of active slots */
43 	int	tdma_count;		/* active/inuse countdown */
44 
45 	/* parent method pointers */
46 	int	(*tdma_newstate)(struct ieee80211vap *, enum ieee80211_state,
47 		    int arg);
48 	void	(*tdma_recv_mgmt)(struct ieee80211_node *,
49 		    struct mbuf *, int, int, int, uint32_t);
50 	void	(*tdma_opdetach)(struct ieee80211vap *);
51 };
52 
53 void	ieee80211_tdma_vattach(struct ieee80211vap *);
54 
55 int	ieee80211_tdma_getslot(struct ieee80211vap *vap);
56 void	ieee80211_parse_tdma(struct ieee80211_node *ni, const uint8_t *ie);
57 uint8_t *ieee80211_add_tdma(uint8_t *frm, struct ieee80211vap *vap);
58 struct ieee80211_beacon_offsets;
59 void	ieee80211_tdma_update_beacon(struct ieee80211vap *vap,
60 	    struct ieee80211_beacon_offsets *bo);
61 struct ieee80211req;
62 int	ieee80211_tdma_ioctl_get80211(struct ieee80211vap *vap,
63 	    struct ieee80211req *ireq);
64 int	ieee80211_tdma_ioctl_set80211(struct ieee80211vap *vap,
65 	    struct ieee80211req *ireq);
66 #endif /* !_NET80211_IEEE80211_TDMA_H_ */
67