rtl8187: Add callback for get_tsf

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c
index f336c63053c1..a05382557789 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c
@@ -1265,6 +1265,14 @@ static int rtl8187_conf_tx(struct ieee80211_hw *dev, u16 queue,
         return 0;
 }
 
+static u64 rtl8187_get_tsf(struct ieee80211_hw *dev)
+{
+        struct rtl8187_priv *priv = dev->priv;
+
+        return rtl818x_ioread32(priv, &priv->map->TSFT[0]) |
+               (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32;
+}
+
 static const struct ieee80211_ops rtl8187_ops = {
         .tx                     = rtl8187_tx,
         .start                  = rtl8187_start,
@@ -1276,7 +1284,8 @@ static const struct ieee80211_ops rtl8187_ops = {
         .prepare_multicast      = rtl8187_prepare_multicast,
         .configure_filter       = rtl8187_configure_filter,
         .conf_tx                = rtl8187_conf_tx,
-        .rfkill_poll            = rtl8187_rfkill_poll
+        .rfkill_poll            = rtl8187_rfkill_poll,
+        .get_tsf                = rtl8187_get_tsf,
 };
 
 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom)