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authorJohannes Berg <johannes.berg@intel.com>2012-05-10 09:09:10 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-05-16 12:46:38 -0400
commitac55d2fe0576d272c4a98ed9dfb87b1cca29486e (patch)
tree8c3ef0958797ae0fc9a28e9fc9773d4d27bbe7f0 /net/mac80211
parentrt2x00:Add RT539b chipset support (diff)
downloadlinux-dev-ac55d2fe0576d272c4a98ed9dfb87b1cca29486e.tar.xz
linux-dev-ac55d2fe0576d272c4a98ed9dfb87b1cca29486e.zip
mac80211: (selectively) add HT details in radiotap
Add a flag for the HT format (mixed vs. greenfield) to allow drivers to report that on receive. Not all drivers will do that though, so allow drivers to set which radiotap MCS details they report. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/main.c3
-rw-r--r--net/mac80211/rx.c6
2 files changed, 6 insertions, 3 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index b70f7f09da61..f5548e953259 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -596,6 +596,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE;
local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
+ local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
+ IEEE80211_RADIOTAP_MCS_HAVE_GI |
+ IEEE80211_RADIOTAP_MCS_HAVE_BW;
local->user_power_level = -1;
wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index d5ac02fe37ff..489093b08a4a 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -204,14 +204,14 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
if (status->flag & RX_FLAG_HT) {
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
- *pos++ = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
- IEEE80211_RADIOTAP_MCS_HAVE_GI |
- IEEE80211_RADIOTAP_MCS_HAVE_BW;
+ *pos++ = local->hw.radiotap_mcs_details;
*pos = 0;
if (status->flag & RX_FLAG_SHORT_GI)
*pos |= IEEE80211_RADIOTAP_MCS_SGI;
if (status->flag & RX_FLAG_40MHZ)
*pos |= IEEE80211_RADIOTAP_MCS_BW_40;
+ if (status->flag & RX_FLAG_HT_GF)
+ *pos |= IEEE80211_RADIOTAP_MCS_FMT_GF;
pos++;
*pos++ = status->rate_idx;
}