carl9170: allow users to lower output power level
This patch implements a simple way of reducing the
output power of the device by a configurable upper
limit.
Requested-by: Harshal Chhaya <harshal@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index 6ee7c55..8d2523b 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -853,11 +853,6 @@
goto out;
}
- if (changed & IEEE80211_CONF_CHANGE_POWER) {
- /* TODO */
- err = 0;
- }
-
if (changed & IEEE80211_CONF_CHANGE_SMPS) {
/* TODO */
err = 0;
@@ -891,6 +886,12 @@
goto out;
}
+ if (changed & IEEE80211_CONF_CHANGE_POWER) {
+ err = carl9170_set_mac_tpc(ar, ar->hw->conf.channel);
+ if (err)
+ goto out;
+ }
+
out:
mutex_unlock(&ar->mutex);
return err;