rt2x00: Add register definition for busy time on secondary channel

Add the register definition CH_BUSY_STA_SEC for reading the busy time
on the secondary channel in HT40 mode. Also update the comments about
channel busy/idle time registers to express the used unit.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index 9bf50a1c48d0..f02ea129680e 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -747,16 +747,21 @@
 #define INT_TIMER_EN_GP_TIMER           FIELD32(0x00000002)
 
 /*
- * CH_IDLE_STA: channel idle time
+ * CH_IDLE_STA: channel idle time (in us)
  */
 #define CH_IDLE_STA                     0x1130
 
 /*
- * CH_BUSY_STA: channel busy time
+ * CH_BUSY_STA: channel busy time on primary channel (in us)
  */
 #define CH_BUSY_STA                     0x1134
 
 /*
+ * CH_BUSY_STA_SEC: channel busy time on secondary channel in HT40 mode (in us)
+ */
+#define CH_BUSY_STA_SEC                 0x1138
+
+/*
  * MAC_STATUS_CFG:
  * BBP_RF_BUSY: When set to 0, BBP and RF are stable.
  *      if 1 or higher one of the 2 registers is busy.