Bluetooth: Set le data length command and event

[platform/kernel/linux-starfive.git] / net / bluetooth / hci_conn.c

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index d9383a3..473d44a 100644 (file)
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -2494,6 +2494,35 @@ int hci_conn_change_supervision_timeout(struct hci_conn *conn, __u16 timeout)
 
        return 0;
 }
+
+int hci_le_set_data_length(struct hci_conn *conn, u16 tx_octets, u16 tx_time)
+{
+       struct hci_dev *hdev = conn->hdev;
+       struct hci_conn_params *params;
+       struct hci_cp_le_set_data_len cp;
+
+       hci_dev_lock(hdev);
+
+       params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
+       if (params) {
+               params->max_tx_octets = tx_octets;
+               params->max_tx_time = tx_time;
+       }
+
+       hci_dev_unlock(hdev);
+
+       memset(&cp, 0, sizeof(cp));
+       cp.handle = cpu_to_le16(conn->handle);
+       cp.tx_len = cpu_to_le16(tx_octets);
+       cp.tx_time = cpu_to_le16(tx_time);
+
+       hci_send_cmd(hdev, HCI_OP_LE_SET_DATA_LEN, sizeof(cp), &cp);
+
+       if (params)
+               return 0x01;
+
+       return 0x00;
+}
 #endif
 
 /* Enter active mode */