b43: add support for setting the beacon listen interval

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 76cae3154ab3..5d4173ee55bc 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3930,6 +3930,12 @@ static int b43_switch_band(struct b43_wldev *dev,
         return 0;
 }
 
+static void b43_set_beacon_listen_interval(struct b43_wldev *dev, u16 interval)
+{
+        interval = min_t(u16, interval, (u16)0xFF);
+        b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BCN_LI, interval);
+}
+
 /* Write the short and long frame retry limit values. */
 static void b43_set_retry_limits(struct b43_wldev *dev,
                                  unsigned int short_retry,
@@ -3958,6 +3964,9 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
         mutex_lock(&wl->mutex);
         b43_mac_suspend(dev);
 
+        if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL)
+                b43_set_beacon_listen_interval(dev, conf->listen_interval);
+
         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
                 phy->chandef = &conf->chandef;
                 phy->channel = conf->chandef.chan->hw_value;