From 420e7fabd9c6d907280ed6b3e40eef425c5d8d8d Mon Sep 17 00:00:00 2001 From: Henning Rogge Date: Thu, 11 Dec 2008 22:04:19 +0100 Subject: nl80211: Add signal strength and bandwith to nl80211station info This patch adds signal strength and transmission bitrate to the station_info of nl80211. Signed-off-by: Henning Rogge Acked-by: Johannes Berg Signed-off-by: John W. Linville --- include/linux/nl80211.h | 31 +++++++++++++++++++++++++++++++ include/net/cfg80211.h | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 71 insertions(+) (limited to 'include') diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index 04d4516f9c7..7501acfcfdc 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -424,6 +424,32 @@ enum nl80211_sta_flags { NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1 }; +/** + * enum nl80211_rate_info - bitrate information + * + * These attribute types are used with %NL80211_STA_INFO_TXRATE + * when getting information about the bitrate of a station. + * + * @__NL80211_RATE_INFO_INVALID: attribute number 0 is reserved + * @NL80211_RATE_INFO_BITRATE: total bitrate (u16, 100kbit/s) + * @NL80211_RATE_INFO_MCS: mcs index for 802.11n (u8) + * @NL80211_RATE_INFO_40_MHZ_WIDTH: 40 Mhz dualchannel bitrate + * @NL80211_RATE_INFO_SHORT_GI: 400ns guard interval + * @NL80211_RATE_INFO_MAX: highest rate_info number currently defined + * @__NL80211_RATE_INFO_AFTER_LAST: internal use + */ +enum nl80211_rate_info { + __NL80211_RATE_INFO_INVALID, + NL80211_RATE_INFO_BITRATE, + NL80211_RATE_INFO_MCS, + NL80211_RATE_INFO_40_MHZ_WIDTH, + NL80211_RATE_INFO_SHORT_GI, + + /* keep last */ + __NL80211_RATE_INFO_AFTER_LAST, + NL80211_RATE_INFO_MAX = __NL80211_RATE_INFO_AFTER_LAST - 1 +}; + /** * enum nl80211_sta_info - station information * @@ -436,6 +462,9 @@ enum nl80211_sta_flags { * @NL80211_STA_INFO_TX_BYTES: total transmitted bytes (u32, to this station) * @__NL80211_STA_INFO_AFTER_LAST: internal * @NL80211_STA_INFO_MAX: highest possible station info attribute + * @NL80211_STA_INFO_SIGNAL: signal strength of last received PPDU (u8, dBm) + * @NL80211_STA_INFO_TX_BITRATE: current unicast tx rate, nested attribute + * containing info as possible, see &enum nl80211_sta_info_txrate. */ enum nl80211_sta_info { __NL80211_STA_INFO_INVALID, @@ -445,6 +474,8 @@ enum nl80211_sta_info { NL80211_STA_INFO_LLID, NL80211_STA_INFO_PLID, NL80211_STA_INFO_PLINK_STATE, + NL80211_STA_INFO_SIGNAL, + NL80211_STA_INFO_TX_BITRATE, /* keep last */ __NL80211_STA_INFO_AFTER_LAST, diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index a0c0bf19496..65e03ac9310 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -169,6 +169,9 @@ struct station_parameters { * @STATION_INFO_LLID: @llid filled * @STATION_INFO_PLID: @plid filled * @STATION_INFO_PLINK_STATE: @plink_state filled + * @STATION_INFO_SIGNAL: @signal filled + * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled + * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) */ enum station_info_flags { STATION_INFO_INACTIVE_TIME = 1<<0, @@ -177,6 +180,39 @@ enum station_info_flags { STATION_INFO_LLID = 1<<3, STATION_INFO_PLID = 1<<4, STATION_INFO_PLINK_STATE = 1<<5, + STATION_INFO_SIGNAL = 1<<6, + STATION_INFO_TX_BITRATE = 1<<7, +}; + +/** + * enum station_info_rate_flags - bitrate info flags + * + * Used by the driver to indicate the specific rate transmission + * type for 802.11n transmissions. + * + * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled + * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission + * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval + */ +enum rate_info_flags { + RATE_INFO_FLAGS_MCS = 1<<0, + RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1, + RATE_INFO_FLAGS_SHORT_GI = 1<<2, +}; + +/** + * struct rate_info - bitrate information + * + * Information about a receiving or transmitting bitrate + * + * @flags: bitflag of flags from &enum rate_info_flags + * @mcs: mcs index if struct describes a 802.11n bitrate + * @legacy: bitrate in 100kbit/s for 802.11abg + */ +struct rate_info { + u8 flags; + u8 mcs; + u16 legacy; }; /** @@ -191,6 +227,8 @@ enum station_info_flags { * @llid: mesh local link id * @plid: mesh peer link id * @plink_state: mesh peer link state + * @signal: signal strength of last received packet in dBm + * @txrate: current unicast bitrate to this station */ struct station_info { u32 filled; @@ -200,6 +238,8 @@ struct station_info { u16 llid; u16 plid; u8 plink_state; + s8 signal; + struct rate_info txrate; }; /** -- cgit v1.2.3-70-g09d2