[RFC v2 02/15] Bluetooth: Save connection interval parameters in hci_conn

[Andre Guedes <andre.guedes@openbossa.org>]

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>
---
 include/net/bluetooth/hci_core.h | 3 +++
 net/bluetooth/hci_conn.c         | 6 ++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 8c0ab3d..037a7b5 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -341,6 +341,9 @@ struct hci_conn {
 
 	unsigned int	sent;
 
+	__u16		conn_interval_min;
+	__u16		conn_interval_max;
+
 	struct sk_buff_head data_q;
 	struct list_head chan_list;
 
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index ba5366c..9fb7b44 100644
--- 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->conn_interval_min);
+	cp.conn_interval_max = cpu_to_le16(conn->conn_interval_max);
 	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->conn_interval_min = hdev->le_conn_min_interval;
+	conn->conn_interval_max = hdev->le_conn_max_interval;
 
 	err = hci_create_le_conn(conn);
 	if (err)
-- 
1.8.4