2012-05-20 02:49:42 +00:00
|
|
|
/*-
|
2017-11-27 14:52:40 +00:00
|
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
|
|
|
*
|
2012-05-20 02:49:42 +00:00
|
|
|
* Copyright (c) 2002-2009 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,
|
|
|
|
|
* without modification.
|
|
|
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
|
|
|
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
|
|
|
|
|
* redistribution must be conditioned upon including a substantially
|
|
|
|
|
* similar Disclaimer requirement for further binary redistribution.
|
|
|
|
|
*
|
|
|
|
|
* NO WARRANTY
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
|
|
|
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
|
|
|
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
|
|
|
|
|
*
|
|
|
|
|
* $FreeBSD$
|
|
|
|
|
*/
|
|
|
|
|
#ifndef __IF_ATH_TDMA_H__
|
|
|
|
|
#define __IF_ATH_TDMA_H__
|
|
|
|
|
|
|
|
|
|
#define TDMA_EP_MULTIPLIER (1<<10) /* pow2 to optimize out * and / */
|
|
|
|
|
#define TDMA_LPF_LEN 6
|
|
|
|
|
#define TDMA_DUMMY_MARKER 0x127
|
|
|
|
|
#define TDMA_EP_MUL(x, mul) ((x) * (mul))
|
|
|
|
|
#define TDMA_IN(x) (TDMA_EP_MUL((x), TDMA_EP_MULTIPLIER))
|
|
|
|
|
#define TDMA_LPF(x, y, len) \
|
|
|
|
|
((x != TDMA_DUMMY_MARKER) ? (((x) * ((len)-1) + (y)) / (len)) : (y))
|
|
|
|
|
#define TDMA_SAMPLE(x, y) do { \
|
|
|
|
|
x = TDMA_LPF((x), TDMA_IN(y), TDMA_LPF_LEN); \
|
|
|
|
|
} while (0)
|
|
|
|
|
#define TDMA_EP_RND(x,mul) \
|
|
|
|
|
((((x)%(mul)) >= ((mul)/2)) ? \
|
|
|
|
|
((x) + ((mul) - 1)) / (mul) : (x)/(mul))
|
|
|
|
|
#define TDMA_AVG(x) TDMA_EP_RND(x, TDMA_EP_MULTIPLIER)
|
|
|
|
|
|
|
|
|
|
extern void ath_tdma_config(struct ath_softc *sc, struct ieee80211vap *vap);
|
|
|
|
|
extern void ath_tdma_update(struct ieee80211_node *ni,
|
|
|
|
|
const struct ieee80211_tdma_param *tdma, int changed);
|
|
|
|
|
extern void ath_tdma_beacon_send(struct ath_softc *sc,
|
|
|
|
|
struct ieee80211vap *vap);
|
|
|
|
|
|
|
|
|
|
#endif
|
