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mac80211: support VHT association

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Determine the VHT channel from the AP's VHT operation IE
(if present) and configure the hardware to that channel
if it is supported. If channel contexts cause a channel
to not be usable, try a smaller bandwidth.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-11-22 14:11:39 +01:00
parent 9f5e8f6efc
commit f2d9d270c1
3 changed files with 313 additions and 72 deletions
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15
include/linux/ieee80211.h
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@@ -1212,6 +1212,21 @@ struct ieee80211_vht_cap {
struct ieee80211_vht_mcs_info supp_mcs;
} __packed;
/**
* enum ieee80211_vht_chanwidth - VHT channel width
* @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
* determine the channel width (20 or 40 MHz)
* @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
* @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
* @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
*/
enum ieee80211_vht_chanwidth {
IEEE80211_VHT_CHANWIDTH_USE_HT = 0,
IEEE80211_VHT_CHANWIDTH_80MHZ = 1,
IEEE80211_VHT_CHANWIDTH_160MHZ = 2,
IEEE80211_VHT_CHANWIDTH_80P80MHZ = 3,
};
/**
* struct ieee80211_vht_operation - VHT operation IE
*