From f5cdf30618cf855c2043e5c0c131ebb120929864 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 21 Apr 2007 17:56:29 -0500 Subject: [PATCH] ieee80211: add ieee80211_channel_to_freq The routines that interrogate the ieee80211_geo struct are missing a channel to frequency entry. This patch adds it. Signed-off-by: Larry Finger Signed-off-by: John W. Linville --- net/ieee80211/ieee80211_geo.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'net/ieee80211') 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); -- cgit v1.2.2