[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, 16 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 61b94218094b..3e935d0d4b80 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -2660,6 +2660,22 @@ static int b43legacy_dev_config(struct ieee80211_hw *hw,
                 b43legacy_set_beacon_int(dev, conf->beacon_int);
 
 
+        if (!!conf->radio_enabled != phy->radio_on) {
+                if (conf->radio_enabled) {
+                        b43legacy_radio_turn_on(dev);
+                        b43legacyinfo(dev->wl, "Radio turned on by software\n");
+                        if (!dev->radio_hw_enable)
+                                b43legacyinfo(dev->wl, "The hardware RF-kill"
+                                              " button still turns the radio"
+                                              " physically off. Press the"
+                                              " button to turn it on.\n");
+                } else {
+                        b43legacy_radio_turn_off(dev);
+                        b43legacyinfo(dev->wl, "Radio turned off by"
+                                      " software\n");
+                }
+        }
+
         spin_lock_irqsave(&wl->irq_lock, flags);
         b43legacy_interrupt_enable(dev, savedirqs);
         mmiowb();