From: Simon Wunderlich Date: Thu, 16 May 2013 11:00:29 +0000 (+0200) Subject: nl80211: add rate flags for 5/10 Mhz channels X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=30e747326378caec9ad13515bc9bde2e41b1fee3;p=linux-beck.git nl80211: add rate flags for 5/10 Mhz channels Signed-off-by: Simon Wunderlich Signed-off-by: Mathias Kretschmer Signed-off-by: Johannes Berg --- diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 316f34bb8e6e..e3a39fc9a296 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -188,6 +188,8 @@ struct ieee80211_channel { * when used with 802.11g (on the 2.4 GHz band); filled by the * core code when registering the wiphy. * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. + * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode + * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode */ enum ieee80211_rate_flags { IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, @@ -195,6 +197,8 @@ enum ieee80211_rate_flags { IEEE80211_RATE_MANDATORY_B = 1<<2, IEEE80211_RATE_MANDATORY_G = 1<<3, IEEE80211_RATE_ERP_G = 1<<4, + IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5, + IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6, }; /** @@ -432,6 +436,30 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy, const struct cfg80211_chan_def *chandef, u32 prohibited_flags); +/** + * ieee80211_chandef_rate_flags - returns rate flags for a channel + * + * In some channel types, not all rates may be used - for example CCK + * rates may not be used in 5/10 MHz channels. + * + * @chandef: channel definition for the channel + * + * Returns: rate flags which apply for this channel + */ +static inline enum ieee80211_rate_flags +ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef) +{ + switch (chandef->width) { + case NL80211_CHAN_WIDTH_5: + return IEEE80211_RATE_SUPPORTS_5MHZ; + case NL80211_CHAN_WIDTH_10: + return IEEE80211_RATE_SUPPORTS_10MHZ; + default: + break; + } + return 0; +} + /** * enum survey_info_flags - survey information flags *