From 4b1f8a99a2f5c6c25f04fc93272e5b9c18e82b99 Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Tue, 5 Dec 2006 14:42:14 +0800 Subject: [PATCH] [PATCH] ipw2200: Add IEEE80211_RADIOTAP_TSFT for promiscuous mode The ipw2200 BSS firmware passes on the TSF information within ipw_rx_frame, but monitor firmware doesn't. I add back the IEEE80211_RADIOTAP_TSFT flags so that we can get the MAC timestamp if we use the rtap interface. We will see the MAC timestamp equals to zero if we capture the packets with a monitor mode interface. But this is the expected behaviour. Signed-off-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/ipw2200.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index b2e144b7f4..26998b5157 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -7656,7 +7656,8 @@ static void ipw_handle_data_packet_monitor(struct ipw_priv *priv, /* Big bitfield of all the fields we provide in radiotap */ ipw_rt->rt_hdr.it_present = - ((1 << IEEE80211_RADIOTAP_FLAGS) | + ((1 << IEEE80211_RADIOTAP_TSFT) | + (1 << IEEE80211_RADIOTAP_FLAGS) | (1 << IEEE80211_RADIOTAP_RATE) | (1 << IEEE80211_RADIOTAP_CHANNEL) | (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | @@ -7665,10 +7666,14 @@ static void ipw_handle_data_packet_monitor(struct ipw_priv *priv, /* Zero the flags, we'll add to them as we go */ ipw_rt->rt_flags = 0; - ipw_rt->rt_tsf = 0ULL; + ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | + frame->parent_tsf[2] << 16 | + frame->parent_tsf[1] << 8 | + frame->parent_tsf[0]); /* Convert signal to DBM */ ipw_rt->rt_dbmsignal = antsignal; + ipw_rt->rt_dbmnoise = frame->noise; /* Convert the channel data and set the flags */ ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel)); @@ -7868,7 +7873,8 @@ static void ipw_handle_promiscuous_rx(struct ipw_priv *priv, /* Big bitfield of all the fields we provide in radiotap */ ipw_rt->rt_hdr.it_present = - ((1 << IEEE80211_RADIOTAP_FLAGS) | + ((1 << IEEE80211_RADIOTAP_TSFT) | + (1 << IEEE80211_RADIOTAP_FLAGS) | (1 << IEEE80211_RADIOTAP_RATE) | (1 << IEEE80211_RADIOTAP_CHANNEL) | (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | @@ -7877,7 +7883,10 @@ static void ipw_handle_promiscuous_rx(struct ipw_priv *priv, /* Zero the flags, we'll add to them as we go */ ipw_rt->rt_flags = 0; - ipw_rt->rt_tsf = 0ULL; + ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | + frame->parent_tsf[2] << 16 | + frame->parent_tsf[1] << 8 | + frame->parent_tsf[0]); /* Convert to DBM */ ipw_rt->rt_dbmsignal = signal; -- 2.39.5