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freebsd-dev/sys/dev/ath/if_athdfs.h

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Flesh out the radar detection related operations for the ath driver. This is in no way a complete DFS/radar detection implementation! It merely creates an abstracted interface which allows for future development of the DFS radar detection code. Note: Net80211 already handles the bulk of the DFS machinery, all we need to do here is figure out that a radar event has occured and inform it as such. It then drives the DFS state engine for us. The "null" DFS radar detection module is included by default; it doesn't require a device line. This commit: * Adds a simple abstracted layer for radar detection state - sys/dev/ath/ath_dfs/; * Implements a null DFS module which doesn't do anything; (ie, implements the exact behaviour at the moment); * Adds hooks to the ath driver to process received radar events and gives the DFS module a chance to determine whether a radar has been detected. Obtained from: Atheros
2011-06-01 20:09:49 +00:00
/*-
* Copyright (c) 2011 Adrian Chadd, Xenion Pty Ltd
* 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_ATHDFS_H__
#define __IF_ATHDFS_H__
extern int ath_dfs_attach(struct ath_softc *sc);
extern int ath_dfs_detach(struct ath_softc *sc);
extern void ath_dfs_radar_enable(struct ath_softc *,
struct ieee80211_channel *chan);
A few changes to make radar detection implementable in a hal_dfs/ module. * If sc->sc_dodfs is set to 1 by the ath_dfs_radar_enable(), set the relevant rx filter bit to begin receiving radar PHY errors. The HAL code already knows how to set the relevant error mask register to enable radar events. * Add a missing call to ath_dfs_radar_enable() after ath_hal_reset() * change ath_dfs_process_phyerr() to take a const char *buf for now, rather than a descriptor. This way it can get access to the packet buffer contents.
2011-06-04 04:14:59 +00:00
extern void ath_dfs_process_phy_err(struct ath_softc *sc, const char *buf,
Flesh out the radar detection related operations for the ath driver. This is in no way a complete DFS/radar detection implementation! It merely creates an abstracted interface which allows for future development of the DFS radar detection code. Note: Net80211 already handles the bulk of the DFS machinery, all we need to do here is figure out that a radar event has occured and inform it as such. It then drives the DFS state engine for us. The "null" DFS radar detection module is included by default; it doesn't require a device line. This commit: * Adds a simple abstracted layer for radar detection state - sys/dev/ath/ath_dfs/; * Implements a null DFS module which doesn't do anything; (ie, implements the exact behaviour at the moment); * Adds hooks to the ath driver to process received radar events and gives the DFS module a chance to determine whether a radar has been detected. Obtained from: Atheros
2011-06-01 20:09:49 +00:00
uint64_t tsf, struct ath_rx_status *rxstat);
extern int ath_dfs_process_radar_event(struct ath_softc *sc,
struct ieee80211_channel *chan);
extern int ath_dfs_tasklet_needed(struct ath_softc *sc,
struct ieee80211_channel *chan);
extern int ath_ioctl_phyerr(struct ath_softc *sc, struct ath_diag *ad);
extern int ath_dfs_get_thresholds(struct ath_softc *sc, HAL_PHYERR_PARAM *param);
#endif /* __IF_ATHDFS_H__ */
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