iwmc3200wifi: rfkill cleanup

The patch cleans up the unused rfkill related structures and flags.
It also adds wext and cfg80211 handlers for txpower auto and off so
that software rfkill could be issued by user space.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwmc3200wifi/cfg80211.c b/drivers/net/wireless/iwmc3200wifi/cfg80211.c
index 0cdd7ef..d0629d4 100644
--- a/drivers/net/wireless/iwmc3200wifi/cfg80211.c
+++ b/drivers/net/wireless/iwmc3200wifi/cfg80211.c
@@ -500,6 +500,28 @@
 	return 0;
 }
 
+static int iwm_cfg80211_set_txpower(struct wiphy *wiphy,
+				    enum tx_power_setting type, int dbm)
+{
+	switch (type) {
+	case TX_POWER_AUTOMATIC:
+		return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int iwm_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)
+{
+	struct iwm_priv *iwm = wiphy_to_iwm(wiphy);
+
+	*dbm = iwm->txpower;
+
+	return 0;
+}
+
 static struct cfg80211_ops iwm_cfg80211_ops = {
 	.change_virtual_intf = iwm_cfg80211_change_iface,
 	.add_key = iwm_cfg80211_add_key,
@@ -510,6 +532,8 @@
 	.set_wiphy_params = iwm_cfg80211_set_wiphy_params,
 	.join_ibss = iwm_cfg80211_join_ibss,
 	.leave_ibss = iwm_cfg80211_leave_ibss,
+	.set_tx_power = iwm_cfg80211_set_txpower,
+	.get_tx_power = iwm_cfg80211_get_txpower,
 };
 
 struct wireless_dev *iwm_wdev_alloc(int sizeof_bus, struct device *dev)