[Bluetooth] Make use of the default link policy settings

The Bluetooth specification supports the default link policy settings
on a per host controller basis. For every new connection the link
manager would then use these settings. It is better to use this instead
of bothering the controller on every connection setup to overwrite the
default settings.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

include/net/bluetooth/hci.h

@@ -404,6 +404,17 @@ struct hci_rp_write_link_policy {
 	__le16   handle;
 } __attribute__ ((packed));
 
+#define HCI_OP_READ_DEF_LINK_POLICY	0x080e
+struct hci_rp_read_def_link_policy {
+	__u8     status;
+	__le16   policy;
+} __attribute__ ((packed));
+
+#define HCI_OP_WRITE_DEF_LINK_POLICY	0x080f
+struct hci_cp_write_def_link_policy {
+	__le16   policy;
+} __attribute__ ((packed));
+
 #define HCI_OP_SNIFF_SUBRATE		0x0811
 struct hci_cp_sniff_subrate {
 	__le16   handle;