[MAC80211]: Add SIOCGIWTXPOWER routine

The wireless extensions ioctl's implemented in mac80211 do not include
SIOCGIWTXPOWER. This patch adds the necessary code.

Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 1fde214faecb..0e88564e524a 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -798,6 +798,20 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
         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_siwrts(struct net_device *dev,
                                   struct iw_request_info *info,
                                   struct iw_param *rts, char *extra)
@@ -1587,7 +1601,7 @@ static const iw_handler ieee80211_handler[] =
         (iw_handler) ieee80211_ioctl_siwfrag,           /* SIOCSIWFRAG */
         (iw_handler) ieee80211_ioctl_giwfrag,           /* SIOCGIWFRAG */
         (iw_handler) NULL,                              /* SIOCSIWTXPOW */
-        (iw_handler) NULL,                              /* SIOCGIWTXPOW */
+        (iw_handler) ieee80211_ioctl_giwtxpower,        /* SIOCGIWTXPOW */
         (iw_handler) ieee80211_ioctl_siwretry,          /* SIOCSIWRETRY */
         (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
         (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */