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Commit 5b88abcf authored by Anantha Krishnan's avatar Anantha Krishnan Committed by Gerrit - the friendly Code Review server
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bluetooth : Configure the Tx idle timeout to 1sec 



when there is no activity on the host tx for 1 sec
indicate the controller to enter into sleep.
1sec is the optimal value we need to satisfy the power
and performance requirements.

Change-Id: I9c2a2973a7fbb1a49460e06117c264aa4e0e44e4
Signed-off-by: default avatarAnantha Krishnan <ananthk@codeaurora.org>
parent f81d0b1f

drivers/bluetooth/hci_ibs.c

+8 −3
Original line number Diff line number Diff line
@@ -58,6 +58,9 @@ 
#define HCI_IBS_WAKE_IND	0xFD

#define HCI_IBS_WAKE_ACK	0xFC



/* TX idle time out value */

#define TX_IDLE_TO		1000



/* HCI_IBS receiver States */

#define HCI_IBS_W4_PACKET_TYPE	0

#define HCI_IBS_W4_EVENT_HDR	1
@@ -265,7 +268,7 @@ static void ibs_wq_awake_device(struct work_struct *work) 
	ibs->ibs_sent_wakes++; /* debug */



	/* start retransmit timer */

	mod_timer(&ibs->wake_retrans_timer, jiffies + wake_retrans);

	mod_timer(&ibs->wake_retrans_timer, jiffies + msecs_to_jiffies(10));



	spin_unlock_irqrestore(&ibs->hci_ibs_lock, flags);
@@ -651,7 +654,8 @@ static void ibs_device_woke_up(struct hci_uart *hu) 
			skb_queue_tail(&ibs->txq, skb);

		/* switch timers and change state to HCI_IBS_TX_AWAKE */

		del_timer(&ibs->wake_retrans_timer);

		mod_timer(&ibs->tx_idle_timer, jiffies + tx_idle_delay);

		mod_timer(&ibs->tx_idle_timer, jiffies +

			msecs_to_jiffies(TX_IDLE_TO));

		ibs->tx_ibs_state = HCI_IBS_TX_AWAKE;

	}
@@ -681,7 +685,8 @@ static int ibs_enqueue(struct hci_uart *hu, struct sk_buff *skb) 
	case HCI_IBS_TX_AWAKE:

		BT_DBG("device awake, sending normally");

		skb_queue_tail(&ibs->txq, skb);

		mod_timer(&ibs->tx_idle_timer, jiffies + tx_idle_delay);

		mod_timer(&ibs->tx_idle_timer, jiffies +

			msecs_to_jiffies(TX_IDLE_TO));

		break;



	case HCI_IBS_TX_ASLEEP: