diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2012-12-12 17:59:39 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-02-15 09:41:38 +0100 |
| commit | 50640f169372b9977487a328dedf13a8debedff7 (patch) | |
| tree | 5ee6bf0cc8d936441049e94d48f7773a5fbdd420 /net/wireless/nl80211.c | |
| parent | c7a6ee27abd46247c1c7edfc49fb935138da7875 (diff) | |
nl80211: advertise HT/VHT channel limitations
When drivers or regulatory have limitations on
40, 80 or 160 MHz channels, advertise these to
userspace via nl80211. Also add a new feature
flag to let userspace know this is supported.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index c1e18ccf404..7e40b9e82b4 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -562,6 +562,18 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time)) goto nla_put_failure; } + if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS)) + goto nla_put_failure; + if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS)) + goto nla_put_failure; + if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ)) + goto nla_put_failure; + if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) + goto nla_put_failure; if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, DBM_TO_MBM(chan->max_power))) |