import RT-Thread@9217865c without bsp, libcpu and components/net

components/utilities/rt-link/inc/rtlink_dev.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-06-15     Sherman      the first version
+ */
+
+#include <rtthread.h>
+#include <rtlink.h>
+
+#define RT_LINK_RX_NONBLOCKING       0x1000
+#define RT_LINK_RX_BLOCKING          0x2000
+#define RT_LINK_TX_NONBLOCKING       0x4000
+#define RT_LINK_TX_BLOCKING          0x8000
+#define RT_LINK_DEVICE_MASK          0xf000
+
+struct rtlink_recv_list
+{
+    void *data;
+    rt_size_t size;
+    rt_size_t index;
+    struct rt_slist_node list;
+};
+
+struct rt_link_device
+{
+    struct rt_device parent;
+    struct rt_link_service service;
+    struct rt_slist_node recv_head; /* recv data list, struct rtlink_recv_list  */
+};
+
+/*
+ * rtlink device register
+ */
+rt_err_t rt_link_dev_register(struct rt_link_device *rtlink,
+                              const char              *name,
+                              rt_uint32_t              flag,
+                              void                    *data);