diff options
Diffstat (limited to 'net/wireless/chan.c')
| -rw-r--r-- | net/wireless/chan.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/net/wireless/chan.c b/net/wireless/chan.c index c1999e45a07..167e7cb6008 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -92,3 +92,54 @@ int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev, return rdev->ops->set_monitor_channel(&rdev->wiphy, chan, chantype); } + +void +cfg80211_get_chan_state(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + struct ieee80211_channel **chan, + enum cfg80211_chan_mode *chanmode) +{ + *chan = NULL; + *chanmode = CHAN_MODE_UNDEFINED; + + ASSERT_RDEV_LOCK(rdev); + ASSERT_WDEV_LOCK(wdev); + + if (!netif_running(wdev->netdev)) + return; + + switch (wdev->iftype) { + case NL80211_IFTYPE_ADHOC: + if (wdev->current_bss) { + *chan = wdev->current_bss->pub.channel; + *chanmode = wdev->ibss_fixed + ? CHAN_MODE_SHARED + : CHAN_MODE_EXCLUSIVE; + return; + } + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + if (wdev->current_bss) { + *chan = wdev->current_bss->pub.channel; + *chanmode = CHAN_MODE_SHARED; + return; + } + break; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_MESH_POINT: + *chan = wdev->channel; + *chanmode = CHAN_MODE_SHARED; + return; + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_WDS: + /* these interface types don't really have a channel */ + return; + case NL80211_IFTYPE_UNSPECIFIED: + case NUM_NL80211_IFTYPES: + WARN_ON(1); + } + + return; +} |