diff options
| author | Aditya Kumar Singh <quic_adisi@quicinc.com> | 2023-09-12 08:18:55 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-09-13 14:24:11 +0300 |
| commit | 30ca8b0c4d6c9fb1d76e5894b1e8bf7c6a12224d (patch) | |
| tree | 57dbb16b43551c721c19329cd39b8b253e97f46a /include/net/cfg80211.h | |
| parent | b13b6bbfbb627884f18982600f7b5a5200652531 (diff) | |
| download | linux-30ca8b0c4d6c9fb1d76e5894b1e8bf7c6a12224d.tar.xz | |
wifi: cfg80211: export DFS CAC time and usable state helper functions
cfg80211 has cfg80211_chandef_dfs_usable() function to know whether
at least one channel in the chandef is in usable state or not. Also,
cfg80211_chandef_dfs_cac_time() function is there which tells the CAC
time required for the given chandef.
Make these two functions visible to drivers by exporting their symbol
to global list of kernel symbols.
Lower level drivers can make use of these two functions to be aware
if CAC is required on the given chandef and for how long. For example
drivers which maintains the CAC state internally can make use of these.
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230912051857.2284-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/cfg80211.h')
| -rw-r--r-- | include/net/cfg80211.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 0551a38d6760..a5841a96284d 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1003,6 +1003,30 @@ int cfg80211_chandef_dfs_required(struct wiphy *wiphy, enum nl80211_iftype iftype); /** + * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable and we + * can/need start CAC on such channel + * @wiphy: the wiphy to validate against + * @chandef: the channel definition to check + * + * Return: true if all channels available and at least + * one channel requires CAC (NL80211_DFS_USABLE) + */ +bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy, + const struct cfg80211_chan_def *chandef); + +/** + * cfg80211_chandef_dfs_cac_time - get the DFS CAC time (in ms) for given + * channel definition + * @wiphy: the wiphy to validate against + * @chandef: the channel definition to check + * + * Returns: DFS CAC time (in ms) which applies for this channel definition + */ +unsigned int +cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy, + const struct cfg80211_chan_def *chandef); + +/** * nl80211_send_chandef - sends the channel definition. * @msg: the msg to send channel definition * @chandef: the channel definition to check |