[B43]: Support for turning the radio off from software.

This adds support for turning the radio off in software.
That's useful in environments, where you don't want the RF
to radiate any signals, but don't want to bring the interface down.

Cc: Larry Finger <larry.finger@lwfinger.net>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index 270a2112de2a..a22435ade8ca 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -459,7 +459,6 @@ struct b43_phy {
         u16 radio_ver;          /* Radio version */
         u8 radio_rev;           /* Radio revision */
 
-        bool radio_on;          /* Radio switched on/off */
         bool locked;            /* Only used in b43_phy_{un}lock() */
         bool dyn_tssi_tbl;      /* tssi2dbm is kmalloc()ed. */
 
@@ -468,6 +467,16 @@ struct b43_phy {
         bool aci_wlan_automatic;
         bool aci_hw_rssi;
 
+        /* Radio switched on/off */
+        bool radio_on;
+        struct {
+                /* Values saved when turning the radio off.
+                 * They are needed when turning it on again. */
+                bool valid;
+                u16 rfover;
+                u16 rfoverval;
+        } radio_off_context;
+
         u16 minlowsig[2];
         u16 minlowsigpos[2];