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>

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 1252ba1..97b2eae 100644 (file)
--- 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 0e2a1a9..7dc5a67 100644 (file)
--- 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
 };
 
 /**