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82 lines
3.0 KiB
C
Executable File
82 lines
3.0 KiB
C
Executable File
/**
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******************************************************************************
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* @file tcp_echoclient.h
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* @author MCD Application Team
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* @version V1.1.0
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* @date 31-July-2013
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* @brief Header file for tcp_echoclient.c
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __TCP_ECHOCLIENT_H__
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#define __TCP_ECHOCLIENT_H__
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#include "lwip/debug.h"
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#include "lwip/stats.h"
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#include "lwip/tcp.h"
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#define TCP_Tx_SIZE 64
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#define TCP_Rx_SIZE 2048 + 10
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/* 用户TCP接收/发送结构体 */
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typedef struct
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{
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uint8_t TcpState; /* TCP连接状态 0表示没连接，1表示连上了 */
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uint8_t TxData[TCP_Tx_SIZE]; /* TCP发送数据缓冲区 */
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uint16_t TxCount; /* TCP发送的数据长度 */
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uint8_t RxData[TCP_Rx_SIZE]; /* TCP接收数据缓冲区 */
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} TCP_USER_T;
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/* ECHO protocol states */
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enum echoclient_states
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{
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ES_NOT_CONNECTED = 0,
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ES_CONNECTED,
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ES_RECEIVED,
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ES_CLOSING,
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};
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/* structure to be passed as argument to the tcp callbacks */
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struct echoclient
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{
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enum echoclient_states state; /* connection status */
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struct tcp_pcb *pcb; /* pointer on the current tcp_pcb */
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struct pbuf *p_tx; /* pointer on pbuf to be transmitted */
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};
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/* Includes ------------------------------------------------------------------*/
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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions ------------------------------------------------------- */
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void tcp_echoclient_connect(void);
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void tcp_echoclient_connection_close(struct tcp_pcb *tpcb, struct echoclient *es);
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void tcp_client_usersent(struct tcp_pcb *_tpcb); /* 用户发送数据 */
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extern struct tcp_pcb *echoclient_pcb;
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extern TCP_USER_T g_tClient;
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extern uint8_t g_fTcpState; /* TCP连接 */
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#endif /* __TCP_ECHOCLIENT_H__ */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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