fc627dad3f
With some conditions, the device is able to send/receive frames during
scan operation. So, it is possible to use it implement the "remain on
channel" feature. We just ask for a passive scan (without sending any
probe request) on one channel.
This architecture allows to leverage some interesting features:
- if the device is AP, the device switches channel just after the next
beacon and the beacons are stopped during the off-channel interval.
- if the device is connected, it advertises it is asleep before to
switch channel (so the AP should stop to try to send data)
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231004172843.195332-9-jerome.pouiller@silabs.com
28 lines
886 B
C
28 lines
886 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Scan related functions.
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*
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* Copyright (c) 2017-2020, Silicon Laboratories, Inc.
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* Copyright (c) 2010, ST-Ericsson
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*/
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#ifndef WFX_SCAN_H
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#define WFX_SCAN_H
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#include <net/mac80211.h>
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struct wfx_dev;
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struct wfx_vif;
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void wfx_hw_scan_work(struct work_struct *work);
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int wfx_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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struct ieee80211_scan_request *req);
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void wfx_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
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void wfx_scan_complete(struct wfx_vif *wvif, int nb_chan_done);
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void wfx_remain_on_channel_work(struct work_struct *work);
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int wfx_remain_on_channel(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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struct ieee80211_channel *chan, int duration,
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enum ieee80211_roc_type type);
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int wfx_cancel_remain_on_channel(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
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#endif
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