rt2x00: Rework rt73 antenna selection

This patch changes rt73 antenna selection to what I believe is the correct way.
It also fixes a small selection bug that switched the antennas by accident.

Signed-off-by: Mattias Nissler <mattias.nissler@gmx.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/net/wireless/rt2x00/rt73usb.h b/drivers/net/wireless/rt2x00/rt73usb.h
index 13f479c7da0d..b967df27886a 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.h
+++ b/drivers/net/wireless/rt2x00/rt73usb.h
@@ -713,13 +713,19 @@ struct hw_pairwise_ta_entry {
  * R4: RX antenna control
  * FRAME_END: 1 - DPDT, 0 - SPDT (Only valid for 802.11G, RF2527 & RF2529)
  */
-#define BBP_R4_RX_ANTENNA               FIELD8(0x03)
+
+/*
+ * ANTENNA_CONTROL semantics (guessed):
+ * 0x1: Software controlled antenna switching (fixed or SW diversity)
+ * 0x2: Hardware diversity.
+ */
+#define BBP_R4_RX_ANTENNA_CONTROL       FIELD8(0x03)
 #define BBP_R4_RX_FRAME_END             FIELD8(0x20)
 
 /*
  * R77
  */
-#define BBP_R77_TX_ANTENNA              FIELD8(0x03)
+#define BBP_R77_RX_ANTENNA              FIELD8(0x03)
 
 /*
  * RF registers