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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
/*-
sys/dev: further adoption of SPDX licensing ID tags. 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.
2017-11-27 14:52:40 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
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);
Change the prototype so the radar enable can fail.
2012-01-28 21:44:42 +00:00
extern int ath_dfs_radar_enable(struct ath_softc *,
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
struct ieee80211_channel *chan);
Add a method to explicitly disable radar reporting if required.
2013-01-02 01:36:10 +00:00
extern int ath_dfs_radar_disable(struct ath_softc *sc);
Change the ath_dfs_process_phy_err() method to take an mbuf rather than a buffer pointer. For large radar pulses, the AR9130 and later will return a series of FFT results for software processing. These can overflow a single 2KB buffer on longer pulses. This would result in undefined buffer behaviour.
2012-06-24 08:09:06 +00:00
extern void ath_dfs_process_phy_err(struct ath_softc *sc, struct mbuf *m,
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);
Introduce some more DFS related hooks, inspired both by local work and the Atheros reference code. The radar detection code needs to know what the current DFS domain is. Since net80211 doesn't currently know this information, it's extracted from the HAL regulatory domain information. The specifics: * add a new ath_dfs API hook, ath_dfs_init_radar_filters(), which updates the radar filters whenever the regulatory domain changes. * add HAL_DFS_DOMAIN which describes the currently configured DFS domain . * add a new HAL internal variable which tracks the currently configured HAL DFS domain. * add a new HAL capability, HAL_CAP_DFS_DMN, which returns the currently configured HAL DFS domain setting. * update the HAL DFS domain setting whenever the channel setting is updated. Since this isn't currently used by any radar code, these should all be no-ops for existing users. Obtained from: Atheros Submitted by: KBC Networks, sibridge Approved by: re (kib, blanket)
2011-08-08 16:22:42 +00:00
extern int ath_dfs_get_thresholds(struct ath_softc *sc,
HAL_PHYERR_PARAM *param);
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
#endif /* __IF_ATHDFS_H__ */
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