/************************************************
 *  GPRS demo, use ppp to connect internet
 *  use ttyS1 to ctrol GPRS
 *  by Zou jian guo <ah_zou@163.com>   
 *  2004-11-02
 *
*************************************************/
#include <termios.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <pthread.h>
#include <stdlib.h>
#include <sys/types.h>
#include <errno.h>
#include "tty.h"
#include "gprs.h"
#include "../keyboard/get_key.h"



/*--------------------------------------------------------*/
#define END	"--" 			//程序結束控制鍵
#define FALSE	0
#define TRUE	1

/*--------------------------------------------------------*/
volatile int STOP=FALSE;		//程序結束判斷標志
char shell_s[]="\nkeyshell>$: ";	//命令提示符

/*--------------------------------------------------------*/
//keyshell線程處理函數
void * keyshell()
{
	char cmd[256]={0,};
	//鍵盤初始化
	kbd_init();	
	//GPRS初始化		
	gprs_init();			
	
	//輸出命令菜單
	printf("\n<gprs control shell>");
	printf("\n [1]   give a call");		
	printf("\n [2]   respond a call");		
	printf("\n [3]   hold a call");		
	printf("\n [4]   send a msg");
	printf("\n [**]  help menu");
	printf("\n [--]  exit");
	while(STOP==FALSE){
		//輸出命令提示符
		printf(shell_s);
		//清除緩沖		
		fflush(stdout);

		//讀取一行輸入
		get_line(cmd);	
		//輸出回車換行
		printf("\r\n");			

		if(strncmp("1",cmd,1)==0){
			//撥打電話
			printf("\ngvie a call, please input number:");	
			fflush(stdout);
			get_line(cmd);
			gprs_call(cmd, strlen(cmd));
			printf("\ncalling......");		
		} else if(strncmp("2",cmd,1)==0){
			//接聽電話
			gprs_ans();
			printf("\nanswering.......");	
		} else if(strncmp("3",cmd,1)==0){
			//掛斷電話
			gprs_hold();
			printf("\nhold a call");
		}else if (strncmp("4",cmd,1)==0){
			//發送短信
			printf("\nsend a message, please input number:");	
			fflush(stdout);
			get_line(cmd);
			gprs_msg(cmd, strlen(cmd));
			printf("\nsending......");	
		}else if (strncmp("**",cmd,2)==0){
			//重新輸出菜單
			printf("\n<gprs control shell>");
			printf("\n [1]  give a call");
			printf("\n [2]  respond a call");		
			printf("\n [3]  hold a call");		
			printf("\n [4]  send a msg");
			printf("\n [**] help menu");
		}else if (strncmp(END,cmd,2)==0){
			//設置程序結束標志
			printf("\nexit......");
			STOP=TRUE;
		}else if(cmd[0] != 0){
			//系統命令調用
			system(cmd);
		}		
	}		
}


/*--------------------------------------------------------*/
/*讀gprs反饋信息線程處理函數*/
void* gprs_read(void * data)
{
	int i=0;
	char c;
	char buf[1024];
  	printf("\nread modem\n");
	
	//循環讀取gprs串口數據，并輸出
  	while (STOP==FALSE) 	{		
		tty_read(&c,1); 	
		printf("%c",c);	
	}
	
  	printf("exit from reading modem\n");
  	return NULL; 
}

/*--------------------------------------------------------*/
int main(int argc,char** argv)
{
 	pthread_t th_a, th_b;
	//初始化gprs串口
	tty_init();

	//創建keyshell和gprs_read線程
  	pthread_create(&th_a, NULL, keyshell, 0);
  	pthread_create(&th_b, NULL, gprs_read, 0);
	pthread_join(th_a, NULL);
	pthread_join(th_b, NULL);
	
	//恢復并關閉gprs串口
  	tty_end();
  	exit(0); 
}