mac802154: TX data path

Main TX data path implementation between upper and physical layers.

Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mac802154/mac802154.h b/net/mac802154/mac802154.h
index 980d0a2..4f2d975 100644
--- a/net/mac802154/mac802154.h
+++ b/net/mac802154/mac802154.h
@@ -60,4 +60,9 @@
 
 #define mac802154_to_priv(_hw)	container_of(_hw, struct mac802154_priv, hw)
 
+#define MAC802154_MAX_XMIT_ATTEMPTS	3
+
+netdev_tx_t mac802154_tx(struct mac802154_priv *priv, struct sk_buff *skb,
+			 u8 page, u8 chan);
+
 #endif /* MAC802154_H */