Add basic change for v1453

Change-Id: I9497a61bbc3717f66413794a4e7dee0347c0bc33
diff --git a/mbtk/mbtk_at/inc/mbtk_at_tcpip.h b/mbtk/mbtk_at/inc/mbtk_at_tcpip.h
new file mode 100755
index 0000000..375f4b6
--- /dev/null
+++ b/mbtk/mbtk_at/inc/mbtk_at_tcpip.h
@@ -0,0 +1,90 @@
+#ifndef __MBTK_AT_TCPIP_H__
+#define __MBTK_AT_TCPIP_H__
+
+#include <pthread.h>
+/*******************DEFINE**********************/
+#define task_mutex pthread_mutex_t
+/*******************DEFINE**********************/
+
+/*******************TYPEDEF**********************/
+typedef void (*mbtk_tcpip_read_callback_func)(int link_id, const char* data, int data_len);
+/*******************TYPEDEF**********************/
+
+/*******************ENUM**********************/
+typedef enum {
+    MBTK_TCPIP_ERR_SUCCESS,
+    MBTK_TCPIP_ERR_NET_UNAVAILABLE,     /* Network unavailable. */
+    MBTK_TCPIP_ERR_NET_HANDLE,     /* Network handle error. */
+    MBTK_TCPIP_ERR_ARG,     /* Parameter error. */
+    MBTK_TCPIP_ERR_LINK_UNAVAILABLE,     /* Link unavailable. */
+    MBTK_TCPIP_ERR_LINK_NOT_CONNECT,     /* Link not connect. */
+    MBTK_TCPIP_ERR_UNKNOWN
+} mbtk_tcpip_err_enum;
+
+typedef enum
+{
+    MBTK_SOCK_TCP = 0,
+    MBTK_SOCK_UDP
+} mbtk_sock_type;
+
+typedef enum {
+    MBTK_TCPIP_TYPE_CLIENT,
+    MBTK_TCPIP_TYPE_SERVER
+} mbtk_tcpip_type_enum;
+/*******************ENUM**********************/
+
+/*******************STRUCT**********************/
+typedef struct
+{
+    unsigned int sig;
+    void* payload;
+} mbtk_signal_info;
+
+
+typedef struct{
+    task_mutex crit_sect; //User-defined data type
+} mbtk_mutex;
+
+typedef struct node
+{
+    void *payload;
+    int count;          //only used to count for internal
+    mbtk_mutex mutex;   //only used to count for internal
+    struct node *front;
+    struct node *rear;
+} mbtk_queue_node_t;
+
+typedef struct {
+    pthread_t thread_id;
+    pthread_cond_t cond;
+    mbtk_mutex mutex;
+    mbtk_queue_node_t queue;
+} mbtk_task_queue_info;
+
+typedef struct {
+    int link_id;
+    char ser_addr[256];
+    int ser_port;
+    mbtk_sock_type prot_type; // TCP/UDP
+    mbtk_tcpip_type_enum tcpip_type; // Only support client.
+    int local_port;
+    bool ack_support;
+    bool ssl_support;
+    bool ignore_cert;
+    uint32 heartbeat_time;
+    uint32 delay_time;
+
+    mbtk_tcpip_read_callback_func read_cb;
+} mbtk_tcpip_info_t;
+
+typedef struct {
+    int link_id;
+    int sock_fd;
+    int state;
+    int recv_data_len;
+} mbtk_tcpip_tcp_state_info_s;
+/*******************STRUCT**********************/
+
+
+
+#endif
\ No newline at end of file