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-rw-r--r--drivers/net/wireless/mwl8k.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 33da25a349b7..93fe1bd91c36 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -74,6 +74,14 @@ MODULE_PARM_DESC(ap_mode_default,
#define MWL8K_A2H_INT_RX_READY (1 << 1)
#define MWL8K_A2H_INT_TX_DONE (1 << 0)
+/* HW micro second timer register
+ * located at offset 0xA600. This
+ * will be used to timestamp tx
+ * packets.
+ */
+
+#define MWL8K_HW_TIMER_REGISTER 0x0000a600
+
#define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
MWL8K_A2H_INT_CHNL_SWITCHED | \
MWL8K_A2H_INT_QUEUE_EMPTY | \
@@ -1972,6 +1980,11 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id;
else
tx->peer_id = 0;
+
+ if (priv->ap_fw)
+ tx->timestamp = cpu_to_le32(ioread32(priv->regs +
+ MWL8K_HW_TIMER_REGISTER));
+
wmb();
tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);