mac80211: add MCS information to radiotap
This adds the MCS information we currently get
from the drivers into radiotap.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index af49f8a..b0be5fb 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -178,6 +178,11 @@
*
* Number of unicast retries a transmitted frame used.
*
+ * IEEE80211_RADIOTAP_MCS u8, u8, u8 unitless
+ *
+ * Contains a bitmap of known fields/flags, the flags, and
+ * the MCS index.
+ *
*/
enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_TSFT = 0,
@@ -199,6 +204,8 @@
IEEE80211_RADIOTAP_RTS_RETRIES = 16,
IEEE80211_RADIOTAP_DATA_RETRIES = 17,
+ IEEE80211_RADIOTAP_MCS = 19,
+
/* valid in every it_present bitmap, even vendor namespaces */
IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29,
IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30,
@@ -245,6 +252,24 @@
#define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */
#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */
+
+/* For IEEE80211_RADIOTAP_MCS */
+#define IEEE80211_RADIOTAP_MCS_HAVE_BW 0x01
+#define IEEE80211_RADIOTAP_MCS_HAVE_MCS 0x02
+#define IEEE80211_RADIOTAP_MCS_HAVE_GI 0x04
+#define IEEE80211_RADIOTAP_MCS_HAVE_FMT 0x08
+#define IEEE80211_RADIOTAP_MCS_HAVE_FEC 0x10
+
+#define IEEE80211_RADIOTAP_MCS_BW_MASK 0x03
+#define IEEE80211_RADIOTAP_MCS_BW_20 0
+#define IEEE80211_RADIOTAP_MCS_BW_40 1
+#define IEEE80211_RADIOTAP_MCS_BW_20L 2
+#define IEEE80211_RADIOTAP_MCS_BW_20U 3
+#define IEEE80211_RADIOTAP_MCS_SGI 0x04
+#define IEEE80211_RADIOTAP_MCS_FMT_GF 0x08
+#define IEEE80211_RADIOTAP_MCS_FEC_LDPC 0x10
+
+
/* Ugly macro to convert literal channel numbers into their mhz equivalents
* There are certianly some conditions that will break this (like feeding it '30')
* but they shouldn't arise since nothing talks on channel 30. */