diff options
| author | Bruno Randolf | 2011-01-17 13:37:28 +0900 |
|---|---|---|
| committer | John W. Linville | 2011-01-21 15:34:17 -0500 |
| commit | 59eb21a6504731fc16db4cf9463065dd61093e08 (patch) | |
| tree | 4a3732d451c85a5949c6d6294db51a56530677d8 /include/net | |
| parent | 60f2d1d506195803fa6e1dcf3972637b740fdd60 (diff) | |
cfg80211: Extend channel to frequency mapping for 802.11j
Extend channel to frequency mapping for 802.11j Japan 4.9GHz band, according to
IEEE802.11 section 17.3.8.3.2 and Annex J. Because there are now overlapping
channel numbers in the 2GHz and 5GHz band we can't map from channel to
frequency without knowing the band. This is no problem as in most contexts we
know the band. In places where we don't know the band (and WEXT compatibility)
we assume the 2GHz band for channels below 14.
This patch does not implement all channel to frequency mappings defined in
802.11, it's just an extension for 802.11j 20MHz channels. 5MHz and 10MHz
channels as well as 802.11y channels have been omitted.
The following drivers have been updated to reflect the API changes:
iwl-3945, iwl-agn, iwmc3200wifi, libertas, mwl8k, rt2x00, wl1251, wl12xx.
The drivers have been compile-tested only.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: Brian Prodoehl <bprodoehl@gmail.com>
Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/cfg80211.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 1322695beb52..679a0494b5f2 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1790,8 +1790,9 @@ static inline void *wdev_priv(struct wireless_dev *wdev) /** * ieee80211_channel_to_frequency - convert channel number to frequency * @chan: channel number + * @band: band, necessary due to channel number overlap */ -extern int ieee80211_channel_to_frequency(int chan); +extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); /** * ieee80211_frequency_to_channel - convert frequency to channel number |