When the LE controller changes its connection parameters, it will send
a connection parameter update event. Make sure that the new set of
parameters are stored in hci_conn struct and thus will properly update
the previous values retrieved from the connection complete event.
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 9 +++++++++
net/bluetooth/hci_event.c | 27 +++++++++++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 3f3a3f1399fb..6b8371d73d3d 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1666,6 +1666,15 @@ struct hci_ev_le_conn_complete {
__u8 clk_accurancy;
} __packed;
+#define HCI_EV_LE_CONN_UPDATE_COMPLETE 0x03
+struct hci_ev_le_conn_update_complete {
+ __u8 status;
+ __le16 handle;
+ __le16 interval;
+ __le16 latency;
+ __le16 supervision_timeout;
+} __packed;
+
#define HCI_EV_LE_LTK_REQ 0x05
struct hci_ev_le_ltk_req {
__le16 handle;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 3d4741d789d3..e239435312dc 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4070,6 +4070,29 @@ unlock:
hci_dev_unlock(hdev);
}
+static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
+
+ if (ev->status)
+ return;
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+ if (conn) {
+ conn->le_conn_interval = le16_to_cpu(ev->interval);
+ conn->le_conn_latency = le16_to_cpu(ev->latency);
+ conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
+ }
+
+ hci_dev_unlock(hdev);
+}
+
/* This function requires the caller holds hdev->lock */
static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr,
u8 addr_type)
@@ -4269,6 +4292,10 @@ static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_le_conn_complete_evt(hdev, skb);
break;
+ case HCI_EV_LE_CONN_UPDATE_COMPLETE:
+ hci_le_conn_update_complete_evt(hdev, skb);
+ break;
+
case HCI_EV_LE_ADVERTISING_REPORT:
hci_le_adv_report_evt(hdev, skb);
break;
--
1.9.3
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