Bluetooth: Add support for HCI_Enhanced_Setup_Synchronous_Connection command

< HCI Command: Enhanced Setup Synchronous Connection (0x01|0x003d) plen 59
        Handle: 256
        Transmit bandwidth: 8000
        Receive bandwidth: 8000
        Max latency: 13
        Packet type: 0x0380
          3-EV3 may not be used
          2-EV5 may not be used
          3-EV5 may not be used
        Retransmission effort: Optimize for link quality (0x02)
> HCI Event: Command Status (0x0f) plen 4
      Enhanced Setup Synchronous Connection (0x01|0x003d) ncmd 1
        Status: Success (0x00)
> HCI Event: Synchronous Connect Complete (0x2c) plen 17
        Status: Success (0x00)
        Handle: 257
        Address: CC:98:8B:92:04:FD (SONY Visual Products Inc.)
        Link type: eSCO (0x02)
        Transmission interval: 0x0c
        Retransmission window: 0x06
        RX packet length: 60
        TX packet length: 60
        Air mode: Transparent (0x03)

Signed-off-by: Kiran K <kiran.k@intel.com>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index b1062f5cf488..b48e24629fa4 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2278,6 +2278,41 @@ static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
 	hci_dev_unlock(hdev);
 }
 
+static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
+{
+	struct hci_cp_enhanced_setup_sync_conn *cp;
+	struct hci_conn *acl, *sco;
+	__u16 handle;
+
+	bt_dev_dbg(hdev, "status 0x%2.2x", status);
+
+	if (!status)
+		return;
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
+	if (!cp)
+		return;
+
+	handle = __le16_to_cpu(cp->handle);
+
+	bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
+
+	hci_dev_lock(hdev);
+
+	acl = hci_conn_hash_lookup_handle(hdev, handle);
+	if (acl) {
+		sco = acl->link;
+		if (sco) {
+			sco->state = BT_CLOSED;
+
+			hci_connect_cfm(sco, status);
+			hci_conn_del(sco);
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
 static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
 {
 	struct hci_cp_sniff_mode *cp;
@@ -3764,6 +3799,10 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb,
 		hci_cs_setup_sync_conn(hdev, ev->status);
 		break;
 
+	case HCI_OP_ENHANCED_SETUP_SYNC_CONN:
+		hci_cs_enhanced_setup_sync_conn(hdev, ev->status);
+		break;
+
 	case HCI_OP_SNIFF_MODE:
 		hci_cs_sniff_mode(hdev, ev->status);
 		break;