cfg80211: move txpower wext from mac80211

This patch introduces new cfg80211 API to set the TX power
via cfg80211, puts the wext code into cfg80211 and updates
mac80211 to use all that. The -ENETDOWN bits are a hack but
will go away soon.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 78 deletions

diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index a01154e127f0..d2d81b103341 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -306,82 +306,6 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
 	return 0;
 }
 
-static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
-				      struct iw_request_info *info,
-				      union iwreq_data *data, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_channel* chan = local->hw.conf.channel;
-	bool reconf = false;
-	u32 reconf_flags = 0;
-	int new_power_level;
-
-	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
-		return -EINVAL;
-	if (data->txpower.flags & IW_TXPOW_RANGE)
-		return -EINVAL;
-	if (!chan)
-		return -EINVAL;
-
-	/* only change when not disabling */
-	if (!data->txpower.disabled) {
-		if (data->txpower.fixed) {
-			if (data->txpower.value < 0)
-				return -EINVAL;
-			new_power_level = data->txpower.value;
-			/*
-			 * Debatable, but we cannot do a fixed power
-			 * level above the regulatory constraint.
-			 * Use "iwconfig wlan0 txpower 15dBm" instead.
-			 */
-			if (new_power_level > chan->max_power)
-				return -EINVAL;
-		} else {
-			/*
-			 * Automatic power level setting, max being the value
-			 * passed in from userland.
-			 */
-			if (data->txpower.value < 0)
-				new_power_level = -1;
-			else
-				new_power_level = data->txpower.value;
-		}
-
-		reconf = true;
-
-		/*
-		 * ieee80211_hw_config() will limit to the channel's
-		 * max power and possibly power constraint from AP.
-		 */
-		local->user_power_level = new_power_level;
-	}
-
-	if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
-		local->hw.conf.radio_enabled = !(data->txpower.disabled);
-		reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
-		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
-	}
-
-	if (reconf || reconf_flags)
-		ieee80211_hw_config(local, reconf_flags);
-
-	return 0;
-}
-
-static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
-				   struct iw_request_info *info,
-				   union iwreq_data *data, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	data->txpower.fixed = 1;
-	data->txpower.disabled = !(local->hw.conf.radio_enabled);
-	data->txpower.value = local->hw.conf.power_level;
-	data->txpower.flags = IW_TXPOW_DBM;
-
-	return 0;
-}
-
 static int ieee80211_ioctl_siwpower(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_param *wrq,
@@ -658,8 +582,8 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) cfg80211_wext_giwrts,		/* SIOCGIWRTS */
 	(iw_handler) cfg80211_wext_siwfrag,		/* SIOCSIWFRAG */
 	(iw_handler) cfg80211_wext_giwfrag,		/* SIOCGIWFRAG */
-	(iw_handler) ieee80211_ioctl_siwtxpower,	/* SIOCSIWTXPOW */
-	(iw_handler) ieee80211_ioctl_giwtxpower,	/* SIOCGIWTXPOW */
+	(iw_handler) cfg80211_wext_siwtxpower,		/* SIOCSIWTXPOW */
+	(iw_handler) cfg80211_wext_giwtxpower,		/* SIOCGIWTXPOW */
 	(iw_handler) cfg80211_wext_siwretry,		/* SIOCSIWRETRY */
 	(iw_handler) cfg80211_wext_giwretry,		/* SIOCGIWRETRY */
 	(iw_handler) cfg80211_wext_siwencode,		/* SIOCSIWENCODE */