Bluetooth: Save connection interval parameters in hci_conn

This patch creates two new fields in struct hci_conn to save the
minimum and maximum connection interval values used to establish
the connection this object represents.

This change is required in order to know what parameters the
connection is currently using.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 378e2f3..b9676cc 100644 (file)
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -334,6 +334,8 @@ struct hci_conn {
        __u8            passkey_entered;
        __u16           disc_timeout;
        __u16           setting;
+       __u16           le_conn_min_interval;
+       __u16           le_conn_max_interval;
        unsigned long   flags;
 
        __u8            remote_cap;

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 0266bd8..7f148c9 100644 (file)
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -558,8 +558,8 @@ static int hci_create_le_conn(struct hci_conn *conn)
        bacpy(&cp.peer_addr, &conn->dst);
        cp.peer_addr_type = conn->dst_type;
        cp.own_address_type = conn->src_type;
-       cp.conn_interval_min = cpu_to_le16(hdev->le_conn_min_interval);
-       cp.conn_interval_max = cpu_to_le16(hdev->le_conn_max_interval);
+       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 = __constant_cpu_to_le16(0x002a);
        cp.min_ce_len = __constant_cpu_to_le16(0x0000);
        cp.max_ce_len = __constant_cpu_to_le16(0x0000);
@@ -624,6 +624,8 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
        conn->sec_level = BT_SECURITY_LOW;
        conn->pending_sec_level = sec_level;
        conn->auth_type = auth_type;
+       conn->le_conn_min_interval = hdev->le_conn_min_interval;
+       conn->le_conn_max_interval = hdev->le_conn_max_interval;
 
        err = hci_create_le_conn(conn);
        if (err)