diff options
| -rw-r--r-- | include/net/ieee80211.h | 2 | ||||
| -rw-r--r-- | net/ieee80211/ieee80211_geo.c | 16 |
2 files changed, 18 insertions, 0 deletions
diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h index d56b2923d61a..bbd85cd61ed5 100644 --- a/include/net/ieee80211.h +++ b/include/net/ieee80211.h @@ -1291,6 +1291,8 @@ extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee, extern const struct ieee80211_channel *ieee80211_get_channel(struct ieee80211_device *ieee, u8 channel); +extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee, + u8 channel); /* ieee80211_wx.c */ extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee, diff --git a/net/ieee80211/ieee80211_geo.c b/net/ieee80211/ieee80211_geo.c index 305a09de85a5..960ad13f5e9f 100644 --- a/net/ieee80211/ieee80211_geo.c +++ b/net/ieee80211/ieee80211_geo.c @@ -94,6 +94,21 @@ int ieee80211_channel_to_index(struct ieee80211_device *ieee, u8 channel) return -1; } +u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee, u8 channel) +{ + const struct ieee80211_channel * ch; + + /* Driver needs to initialize the geography map before using + * these helper functions */ + if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) + return 0; + + ch = ieee80211_get_channel(ieee, channel); + if (!ch->channel) + return 0; + return ch->freq; +} + u8 ieee80211_freq_to_channel(struct ieee80211_device * ieee, u32 freq) { int i; @@ -174,6 +189,7 @@ EXPORT_SYMBOL(ieee80211_get_channel); EXPORT_SYMBOL(ieee80211_get_channel_flags); EXPORT_SYMBOL(ieee80211_is_valid_channel); EXPORT_SYMBOL(ieee80211_freq_to_channel); +EXPORT_SYMBOL(ieee80211_channel_to_freq); EXPORT_SYMBOL(ieee80211_channel_to_index); EXPORT_SYMBOL(ieee80211_set_geo); EXPORT_SYMBOL(ieee80211_get_geo); |