[B43LEGACY]: 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.

This patch is based on a similar patch of b43 by Michael Buesch.

Signed-off-by: Larry Finger <larry.finger@lwfinger.net>
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/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index 34a6277051a1..746de2ff498c 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -411,7 +411,6 @@ struct b43legacy_phy {
         u8 calibrated:1;
         u8 radio_rev;           /* Radio revision */
 
-        bool radio_on;          /* Radio switched on/off */
         bool locked;            /* Only used in b43legacy_phy_{un}lock() */
         bool dyn_tssi_tbl;      /* tssi2dbm is kmalloc()ed. */
 
@@ -420,6 +419,16 @@ struct b43legacy_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];