Bluetooth: Use LE connection parameters if known

When the LE connection parameters for connection latency and
supervision timeout are known, then use then. If they are not
know fallback to defaults.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index adb413d77637b58a5bc3fc50da8268708535ccf2..e7ee7267f84617ce47d7672be7241b2348b0d635 100644 (file)
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -645,7 +645,8 @@ static void hci_req_add_le_create_conn(struct hci_request *req,
        cp.own_address_type = own_addr_type;
        cp.conn_interval_min = cpu_to_le16(conn->le_conn_min_interval);
        cp.conn_interval_max = cpu_to_le16(conn->le_conn_max_interval);
-       cp.supervision_timeout = cpu_to_le16(0x002a);
+       cp.conn_latency = cpu_to_le16(conn->le_conn_latency);
+       cp.supervision_timeout = cpu_to_le16(conn->le_supv_timeout);
        cp.min_ce_len = cpu_to_le16(0x0000);
        cp.max_ce_len = cpu_to_le16(0x0000);
 
@@ -767,9 +768,13 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
        if (params) {
                conn->le_conn_min_interval = params->conn_min_interval;
                conn->le_conn_max_interval = params->conn_max_interval;
+               conn->le_conn_latency = params->conn_latency;
+               conn->le_supv_timeout = params->supervision_timeout;
        } else {
                conn->le_conn_min_interval = hdev->le_conn_min_interval;
                conn->le_conn_max_interval = hdev->le_conn_max_interval;
+               conn->le_conn_latency = 0x0000;
+               conn->le_supv_timeout = 0x002a;
        }
 
        /* If controller is scanning, we stop it since some controllers are