change(bt/bluedroid): Optimize HIDD sending interrupt report behavior

HID device is allowed to trigger reconnection by sending an interrupt
report. When reconnection is in progress, no more interrupt report can
be sent until the procedure is accomplished.

components/bt/host/bluedroid/stack/hid/hidd_conn.c

@@ -709,11 +709,14 @@ tHID_STATUS hidd_conn_send_data(uint8_t channel, uint8_t msg_type, uint8_t param
     uint8_t *p_out;
     uint16_t cid;
     uint16_t buf_size;
+
     HIDD_TRACE_VERBOSE("%s: channel(%d), msg_type(%d), len(%d)", __func__, channel, msg_type, len);
+
     p_hcon = &hd_cb.device.conn;
     if (p_hcon->conn_flags & HID_CONN_FLAGS_CONGESTED) {
         return HID_ERR_CONGESTED;
     }
+
     switch (msg_type) {
     case HID_TRANS_HANDSHAKE:
     case HID_TRANS_CONTROL:
@@ -760,7 +763,8 @@ tHID_STATUS hidd_conn_send_data(uint8_t channel, uint8_t msg_type, uint8_t param
             }
             hd_cb.pending_data = p_buf;
             if (hd_cb.device.conn.conn_state == HID_CONN_STATE_UNUSED) {
-                hidd_conn_initiate();
+                HIDD_TRACE_WARNING("%s: try to reconnect!", __func__);
+                return hidd_conn_initiate();
             }
             return HID_SUCCESS;
         }
@@ -772,7 +776,7 @@ tHID_STATUS hidd_conn_send_data(uint8_t channel, uint8_t msg_type, uint8_t param
     }
 #endif
     HIDD_TRACE_VERBOSE("%s: report sent", __func__);
-    if (!L2CA_DataWrite(cid, p_buf))
+    if (p_hcon->conn_flags & HID_CONN_FLAGS_CONGESTED || !L2CA_DataWrite(cid, p_buf))
         return (HID_ERR_CONGESTED);
     return (HID_SUCCESS);
 }