From: Pradeep Nemavat <pnemavat@xxxxxxxxxxx> Timestamp tx packets using a HW micro-second timer. This timestamp will be compared to the current timestamp in the hardware and if the difference is greater than 500ms, the packet will be dropped. Signed-off-by: Pradeep Nemavat <pnemavat@xxxxxxxxxxx> Signed-off-by: Nishant Sarmukadam <nishants@xxxxxxxxxxx> --- drivers/net/wireless/mwl8k.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 7968301..4adb050 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); -- 1.6.0.3 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
