mac80211: add flags for STBC (Space-Time Block Coding)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 1252ba1fbff5..97b2eae6a22c 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -876,6 +876,7 @@ struct ieee80211_ht_cap {
 #define IEEE80211_HT_CAP_SGI_40                 0x0040
 #define IEEE80211_HT_CAP_TX_STBC                0x0080
 #define IEEE80211_HT_CAP_RX_STBC                0x0300
+#define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 0e2a1a9b2b65..7dc5a6790397 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -275,6 +275,8 @@ struct ieee80211_bss_conf {
  *      MLME command (internal to mac80211 to figure out whether to send TX
  *      status to user space)
  * @IEEE80211_TX_CTL_LDPC: tells the driver to use LDPC for this frame
+ * @IEEE80211_TX_CTL_STBC: Enables Space-Time Block Coding (STBC) for this
+ *      frame and selects the maximum number of streams that it can use.
  */
 enum mac80211_tx_control_flags {
         IEEE80211_TX_CTL_REQ_TX_STATUS          = BIT(0),
@@ -299,6 +301,8 @@ enum mac80211_tx_control_flags {
         IEEE80211_TX_INTFL_HAS_RADIOTAP         = BIT(20),
         IEEE80211_TX_INTFL_NL80211_FRAME_TX     = BIT(21),
         IEEE80211_TX_CTL_LDPC                   = BIT(22),
+        IEEE80211_TX_CTL_STBC                   = BIT(23) | BIT(24),
+#define IEEE80211_TX_CTL_STBC_SHIFT             23
 };
 
 /**