63 lines
1.5 KiB
C
Executable File
63 lines
1.5 KiB
C
Executable File
/*
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* HT-related code for XRadio drivers
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*
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* Copyright (c) 2013
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* Xradio Technology Co., Ltd. <www.xradiotech.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef XRADIO_HT_H_INCLUDED
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#define XRADIO_HT_H_INCLUDED
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#include <net/mac80211.h>
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struct xradio_ht_info {
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struct ieee80211_sta_ht_cap ht_cap;
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enum nl80211_channel_type channel_type;
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u16 operation_mode;
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};
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static inline int xradio_is_ht(const struct xradio_ht_info *ht_info)
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{
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return ht_info->channel_type != NL80211_CHAN_NO_HT;
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}
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#ifdef SUPPORT_HT40
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static inline int xradio_is_2040BSS(const struct xradio_ht_info *ht_info)
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{
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return xradio_is_ht(ht_info) &&
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(ht_info->ht_cap.cap&IEEE80211_HT_CAP_SUP_WIDTH_20_40);
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}
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static inline int xradio_ht_ShortGI(const struct xradio_ht_info *ht_info)
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{
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return xradio_is_ht(ht_info)
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&& (ht_info->ht_cap.cap
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& (IEEE80211_HT_CAP_SGI_20
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| IEEE80211_HT_CAP_SGI_40));
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}
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#endif
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static inline int xradio_ht_greenfield(const struct xradio_ht_info *ht_info)
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{
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int ret = (xradio_is_ht(ht_info) &&
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(ht_info->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
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!(ht_info->operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT));
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return ret;
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}
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static inline int xradio_ht_ampdu_density(const struct xradio_ht_info *ht_info)
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{
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if (!xradio_is_ht(ht_info))
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return 0;
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return ht_info->ht_cap.ampdu_density;
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}
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#endif /* XRADIO_HT_H_INCLUDED */
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