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nl80211/cfg80211: add radar detection command/event

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Add new NL80211_CMD_RADAR_DETECT, which starts the Channel
Availability Check (CAC). This command will also notify the
usermode about events (CAC finished, CAC aborted, radar
detected, NOP finished).
Once radar detection has started it should continuously
monitor for radars as long as the channel is active.

This patch enables DFS for AP mode in nl80211/cfg80211.

Based on original patch by Victor Goldenshtein <victorg@ti.com>

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
[remove WIPHY_FLAG_HAS_RADAR_DETECT again -- my mistake]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Simon Wunderlich
2013-02-08 18:16:19 +01:00
committed by Johannes Berg
parent 2a0e047ed6
commit 04f39047af
11 changed files with 570 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
net/wireless/trace.h
View File

@ -2051,6 +2051,21 @@ TRACE_EVENT(cfg80211_reg_can_beacon,
WIPHY_PR_ARG, CHAN_DEF_PR_ARG)
);
TRACE_EVENT(cfg80211_chandef_dfs_required,
TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef),
TP_ARGS(wiphy, chandef),
TP_STRUCT__entry(
WIPHY_ENTRY
CHAN_DEF_ENTRY
),
TP_fast_assign(
WIPHY_ASSIGN;
CHAN_DEF_ASSIGN(chandef);
),
TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT,
WIPHY_PR_ARG, CHAN_DEF_PR_ARG)
);
TRACE_EVENT(cfg80211_ch_switch_notify,
TP_PROTO(struct net_device *netdev,
struct cfg80211_chan_def *chandef),
@ -2067,6 +2082,36 @@ TRACE_EVENT(cfg80211_ch_switch_notify,
NETDEV_PR_ARG, CHAN_DEF_PR_ARG)
);
TRACE_EVENT(cfg80211_radar_event,
TP_PROTO(struct wiphy *wiphy, struct cfg80211_chan_def *chandef),
TP_ARGS(wiphy, chandef),
TP_STRUCT__entry(
WIPHY_ENTRY
CHAN_DEF_ENTRY
),
TP_fast_assign(
WIPHY_ASSIGN;
CHAN_DEF_ASSIGN(chandef);
),
TP_printk(WIPHY_PR_FMT ", " CHAN_DEF_PR_FMT,
WIPHY_PR_ARG, CHAN_DEF_PR_ARG)
);
TRACE_EVENT(cfg80211_cac_event,
TP_PROTO(struct net_device *netdev, enum nl80211_radar_event evt),
TP_ARGS(netdev, evt),
TP_STRUCT__entry(
NETDEV_ENTRY
__field(enum nl80211_radar_event, evt)
),
TP_fast_assign(
NETDEV_ASSIGN;
__entry->evt = evt;
),
TP_printk(NETDEV_PR_FMT ", event: %d",
NETDEV_PR_ARG, __entry->evt)
);
DECLARE_EVENT_CLASS(cfg80211_rx_evt,
TP_PROTO(struct net_device *netdev, const u8 *addr),
TP_ARGS(netdev, addr),