The Bluetooth 4.1 introduces a new LE meta event called "LE Remote
Connection Parameter Request" event. In order to the controller
sends this event to host, we should enable it during controller
initialization.
Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 3 +++
net/bluetooth/hci_core.c | 7 +++++++
2 files changed, 10 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 95b7547..66358af 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -307,6 +307,9 @@ enum {
#define LMP_HOST_LE_BREDR 0x04
#define LMP_HOST_SC 0x08
+/* LE features */
+#define HCI_LE_CONN_PARAM_REQ_PROC 0x02
+
/* Connection modes */
#define HCI_CM_ACTIVE 0x0000
#define HCI_CM_HOLD 0x0001
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 5788e03..8a54ca2 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1611,6 +1611,13 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
memset(events, 0, sizeof(events));
events[0] = 0x1f;
+
+ /* If controller supports the Connection Parameters Request
+ * Link Layer Procedure, enable the corresponding event.
+ */
+ if (hdev->le_features[0] & HCI_LE_CONN_PARAM_REQ_PROC)
+ events[0] = events[0] | 0x20;
+
hci_req_add(req, HCI_OP_LE_SET_EVENT_MASK, sizeof(events),
events);
--
1.9.1
--
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