rtl8180: implement get_tsf op for mac80211

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c
index 5a2b7199f5d5..109ab1baf625 100644
--- a/drivers/net/wireless/rtl818x/rtl8180_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c
@@ -761,6 +761,14 @@ static void rtl8180_configure_filter(struct ieee80211_hw *dev,
         rtl818x_iowrite32(priv, &priv->map->RX_CONF, priv->rx_conf);
 }
 
+static u64 rtl8180_get_tsf(struct ieee80211_hw *dev)
+{
+        struct rtl8180_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 rtl8180_ops = {
         .tx                     = rtl8180_tx,
         .start                  = rtl8180_start,
@@ -771,6 +779,7 @@ static const struct ieee80211_ops rtl8180_ops = {
         .bss_info_changed       = rtl8180_bss_info_changed,
         .prepare_multicast      = rtl8180_prepare_multicast,
         .configure_filter       = rtl8180_configure_filter,
+        .get_tsf                = rtl8180_get_tsf,
 };
 
 static void rtl8180_eeprom_register_read(struct eeprom_93cx6 *eeprom)