4 files changed, 61 insertions, 19 deletions

diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index 34a6277051a..746de2ff498 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];
 
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 61b94218094..3e935d0d4b8 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();
diff --git a/drivers/net/wireless/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c
index f9edbd5f300..22a4b3d0186 100644
--- a/drivers/net/wireless/b43legacy/phy.c
+++ b/drivers/net/wireless/b43legacy/phy.c
@@ -462,12 +462,7 @@ static void b43legacy_phy_initb2(struct b43legacy_wldev *dev)
 		val -= 0x0202;
 	}
 	b43legacy_phy_write(dev, 0x03E4, 0x3000);
-	if (phy->channel == 0xFF)
-		b43legacy_radio_selectchannel(dev,
-					B43legacy_RADIO_DEFAULT_CHANNEL_BG,
-					0);
-	else
-		b43legacy_radio_selectchannel(dev, phy->channel, 0);
+	b43legacy_radio_selectchannel(dev, phy->channel, 0);
 	if (phy->radio_ver != 0x2050) {
 		b43legacy_radio_write16(dev, 0x0075, 0x0080);
 		b43legacy_radio_write16(dev, 0x0079, 0x0081);
@@ -516,12 +511,7 @@ static void b43legacy_phy_initb4(struct b43legacy_wldev *dev)
 		val -= 0x0202;
 	}
 	b43legacy_phy_write(dev, 0x03E4, 0x3000);
-	if (phy->channel == 0xFF)
-		b43legacy_radio_selectchannel(dev,
-					B43legacy_RADIO_DEFAULT_CHANNEL_BG,
-					0);
-	else
-		b43legacy_radio_selectchannel(dev, phy->channel, 0);
+	b43legacy_radio_selectchannel(dev, phy->channel, 0);
 	if (phy->radio_ver != 0x2050) {
 		b43legacy_radio_write16(dev, 0x0075, 0x0080);
 		b43legacy_radio_write16(dev, 0x0079, 0x0081);
diff --git a/drivers/net/wireless/b43legacy/radio.c b/drivers/net/wireless/b43legacy/radio.c
index 2a11ee63f40..54067f08282 100644
--- a/drivers/net/wireless/b43legacy/radio.c
+++ b/drivers/net/wireless/b43legacy/radio.c
@@ -1767,6 +1767,17 @@ int b43legacy_radio_selectchannel(struct b43legacy_wldev *dev,
 {
 	struct b43legacy_phy *phy = &dev->phy;
 
+	if (channel == 0xFF) {
+		switch (phy->type) {
+		case B43legacy_PHYTYPE_B:
+		case B43legacy_PHYTYPE_G:
+			channel = B43legacy_RADIO_DEFAULT_CHANNEL_BG;
+			break;
+		default:
+			B43legacy_WARN_ON(1);
+		}
+	}
+
 /* TODO: Check if channel is valid - return -EINVAL if not */
 	if (synthetic_pu_workaround)
 		b43legacy_synth_pu_workaround(dev, channel);
@@ -2070,6 +2081,7 @@ void b43legacy_radio_turn_on(struct b43legacy_wldev *dev)
 {
 	struct b43legacy_phy *phy = &dev->phy;
 	int err;
+	u8 channel;
 
 	might_sleep();
 
@@ -2083,15 +2095,24 @@ void b43legacy_radio_turn_on(struct b43legacy_wldev *dev)
 		b43legacy_phy_write(dev, 0x0015, 0xCC00);
 		b43legacy_phy_write(dev, 0x0015,
 				    (phy->gmode ? 0x00C0 : 0x0000));
+		if (phy->radio_off_context.valid) {
+			/* Restore the RFover values. */
+			b43legacy_phy_write(dev, B43legacy_PHY_RFOVER,
+					    phy->radio_off_context.rfover);
+			b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
+					    phy->radio_off_context.rfoverval);
+			phy->radio_off_context.valid = 0;
+		}
+		channel = phy->channel;
 		err = b43legacy_radio_selectchannel(dev,
 					B43legacy_RADIO_DEFAULT_CHANNEL_BG, 1);
-		B43legacy_WARN_ON(err != 0);
+		err |= b43legacy_radio_selectchannel(dev, channel, 0);
+		B43legacy_WARN_ON(err);
 		break;
 	default:
 		B43legacy_BUG_ON(1);
 	}
 	phy->radio_on = 1;
-	b43legacydbg(dev->wl, "Radio turned on\n");
 	b43legacy_leds_update(dev, 0);
 }
 
@@ -2100,10 +2121,16 @@ void b43legacy_radio_turn_off(struct b43legacy_wldev *dev)
 	struct b43legacy_phy *phy = &dev->phy;
 
 	if (phy->type == B43legacy_PHYTYPE_G && dev->dev->id.revision >= 5) {
-		b43legacy_phy_write(dev, 0x0811, b43legacy_phy_read(dev, 0x0811)
-				    | 0x008C);
-		b43legacy_phy_write(dev, 0x0812, b43legacy_phy_read(dev, 0x0812)
-				    & 0xFF73);
+		u16 rfover, rfoverval;
+
+		rfover = b43legacy_phy_read(dev, B43legacy_PHY_RFOVER);
+		rfoverval = b43legacy_phy_read(dev, B43legacy_PHY_RFOVERVAL);
+		phy->radio_off_context.rfover = rfover;
+		phy->radio_off_context.rfoverval = rfoverval;
+		phy->radio_off_context.valid = 1;
+		b43legacy_phy_write(dev, B43legacy_PHY_RFOVER, rfover | 0x008C);
+		b43legacy_phy_write(dev, B43legacy_PHY_RFOVERVAL,
+				    rfoverval & 0xFF73);
 	} else
 		b43legacy_phy_write(dev, 0x0015, 0xAA00);
 	phy->radio_on = 0;