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authorJohannes Berg <johannes.berg@intel.com>2012-11-08 23:14:50 +0100
committerJohannes Berg <johannes.berg@intel.com>2012-11-26 12:42:59 +0100
commit3d9d1d6656a73ea8407734cfb00b81d14ef62d4b (patch)
tree74f8b3b4acd0b91068ebebbfaa00aaef1f7e097e /net/wireless/wext-compat.c
parent683b6d3b31a51956ea540df00abb0b78894924c1 (diff)
downloadlinux-stericsson-3d9d1d6656a73ea8407734cfb00b81d14ef62d4b.tar.gz
nl80211/cfg80211: support VHT channel configuration
Change nl80211 to support specifying a VHT (or HT) using the control channel frequency (as before) and new attributes for the channel width and first and second center frequency. The old channel type is of course still supported for HT. Also change the cfg80211 channel definition struct to support these by adding the relevant fields to it (and removing the _type field.) This also adds new helper functions: - cfg80211_chandef_create to create a channel def struct given the control channel and channel type, - cfg80211_chandef_identical to check if two channel definitions are identical - cfg80211_chandef_compatible to check if the given channel definitions are compatible, and return the wider of the two This isn't entirely complete, but that doesn't matter until we have a driver using it. In particular, it's missing - regulatory checks on the usable bandwidth (if that even makes sense) - regulatory TX power (database can't deal with it) - a proper channel compatibility calculation for the new channel types Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/wext-compat.c')
-rw-r--r--net/wireless/wext-compat.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index da3307f32362..f9680c9cf9b3 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -785,7 +785,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
struct cfg80211_chan_def chandef = {
- ._type = NL80211_CHAN_NO_HT,
+ .width = NL80211_CHAN_WIDTH_20_NOHT,
};
int freq, err;
@@ -800,6 +800,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
return freq;
if (freq == 0)
return -EINVAL;
+ chandef.center_freq1 = freq;
chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
if (!chandef.chan)
return -EINVAL;
@@ -813,6 +814,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
return freq;
if (freq == 0)
return -EINVAL;
+ chandef.center_freq1 = freq;
chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
if (!chandef.chan)
return -EINVAL;