gprs.h

嵌入式linux下的gprs代码

/*
 * $Id$
 * EAX-400 linux实验指导书配套实验代码
 * 实验3.3 GPRS通信
 * Copyright (c) 2006 Beijing EFLAG Technology Co.,LTD
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
 */

#ifndef GPRS_H
#define GPRS_H

#include <termios.h>

// 命令类型
#define CT_ACCCUR	(0x01)	// 获得当前设置
#define CT_SETPARM	(0x02)	// 设置值

// qreadbuf中的数据按照：UTC，纬度，经度，卫星数，海拔排列
#define UTCSZ		(16U)
#define LATSZ		(16U)
#define LONSZ		(16U)
#define SATSZ		(8U)
#define ALTSZ		(8U)
struct qt_read_struct {
	char utc[UTCSZ];
	char latitude[LATSZ];
	char longitude[LONSZ];
	char satelites[SATSZ];
	char altitude[ALTSZ];
};

struct gprs_stat {
	char *name;	
	char *serialdev;			// 设备名, 采用非默认设置时必须初始化
	int baudspeed;				// 波特率, 采用非默认设置时必须初始化
	speed_t Bbaudspeed;
	long timeout;				// 超时值
	//struct cmd_operations *cmd;		// 保留
	int fds;				// 串口的文件描述符
	struct termios oldsterm;		// 旧串口的终端设置
	char *rbuf;				// 从串口读数据的缓冲(原始数据)
	char *sbuf;				// 向串口写的缓冲区(原始数据)
	//struct qt_read_struct *qreadbuf;	// 从串口读数据的缓冲
	//char *qwritebuf;			// 向串口写的缓冲区
	//ssize_t nread;	
};

void sc_testgprs(int);
void sc_start(int);
void sc_stop(int);
void sc_autostart(int, unsigned char, char *);
void sc_sw(int, unsigned char, char *);
void sc_hw(int, unsigned char, char *);
void sc_syncmode(int, char *);
void sc_pwrdown(int, unsigned char, char **);

struct cmd_operations {
	void (*testgprs)(int);
	void (*start)(int);
	void (*stop)(int);
	void (*sw)(int, unsigned char, char *);
	void (*hw)(int, unsigned char, char *);
};
	
int read_from_serial(struct gprs_stat *);
int write_to_serial(struct gprs_stat *);
int recover_serial(struct gprs_stat *);

int parse_cmd(char *);
int parse_msg(struct gprs_stat *);
//extern int parse_options(int, char **, struct gprs_stat *);

#endif	/* GPRS_H */