finger_test.c

基于s3c2410的linux下面指纹识别程序

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include<time.h>
#include <termios.h>                             
#include <sys/select.h>  
#include <sys/types.h>  
//#include "COMM.h"


#define ACK_SUCCESS		0x00	// 操作成功
#define	ACK_FAIL		0x01  	// 操作失败
#define	ACK_FULL		0x04  	//  Full
#define ACK_NOUSER		0x05 	// 无此用户
#define	ACK_USER_EXIST	0x07	// 用户已存在
#define	ACK_TIMEOUT		0x08	// 采集超时
#define ACK_COUNT		0x3   //发生错误时候，重试次数

extern unsigned char TXBUF[9900];
extern unsigned char RXBUF[9900];
extern unsigned char rev_ok;
extern unsigned int  TX_len;
extern unsigned int  RX_len;
extern unsigned char one_onecontrast(unsigned char user_number_h,unsigned char user_number_l);
extern unsigned char one_morecontrast(void);
extern unsigned char Get_UserNumber_Right(void);
extern unsigned char set_addmode(unsigned char yn_repeat);
extern unsigned char add_Fingerprint(unsigned char time_number,unsigned char user_number_h,
								unsigned char user_number_l,unsigned char user_right);
extern unsigned char del_alluser(void);
extern unsigned char del_oneuser(unsigned char user_number_h,unsigned char user_number_l);
extern unsigned char read_usernumber(void);


int fd;

unsigned char USER_NUMBER_H;	// 用户号高8位
unsigned char USER_NUMBER_L;	// 用户号低8位
unsigned char USER_RIGHT;		// 用户权限

unsigned char FEATURE_BUFFER[512];	// 要下传的指纹特征值数据
unsigned char FEATURE_LEN;			// 要下传的指纹特征值的长度 


unsigned char CharToHex(unsigned char ch);
unsigned char select_one_onecontrast(void);
void select_Get_Usernumber_right(void);


/*********************************************************************************************
* name:		SERIAL_TX
* func:		发生数据到指纹模块串口
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
int SERIAL_TX(void)
{
	int ret;

	ret = write(fd, TXBUF, TX_len);		// 试图从串口发送数 据					
	if(ret == -1)				// 确实接收到了数据，并打印出来
	{
	//	*(rcv_buf+ret)='\0';
		printf(" Write device error!\n");
		return -1;
	//	ret = 0;
	} 
	//unsigned int n;
	// TXBUF为要发送的数据,TX_len为要发送的数据的字节数
	//for (n = 0; n < TX_len; n++)
	//{
	//	uart_sendbyteFP(TXBUF[n]);
	//}	
	return 0;
}

/*********************************************************************************************
* name:		SERIAL_RX
* func:		从指纹模块串口接收数据
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void SERIAL_RX(void)
{
      //  read(fd, RXBUF , RX_len);
#if 1 
	int ret,n,pos,retval;
	fd_set rfds;
	struct timeval tv ;
	pos = 0;//指向接收缓冲
	tv.tv_sec = 2;
	tv.tv_usec = 0;
	for(n = 0; n < RX_len; n++)
	{
		RXBUF[n] = 0xFF;
	}
	
	//while(FD_ISSET(fd,&uart_r)||FD_ISSET(fd,&uart_w));	// 检测串口是否有读写动作
	while(1)	// 检测串口是否有读写动作
	{	
		FD_ZERO(&rfds);// 清空串口接收端口集
		FD_SET(fd,&rfds);// 设置串口接收端口集	
		retval = select(fd+1,&rfds,NULL,NULL,&tv);	
		if(retval == -1)
		{
			perror("select()");
			break;
		}                              
		else if(retval)
		{  //判断是否还有数据 
			//sleep(2);    				
			ret = read(fd, RXBUF, RX_len);
			pos += ret;
			//printf("ret = %d \n",ret);
			if((RXBUF[pos-2] == '\r') & (RXBUF[pos-1] == '\n'))				// 确实接收到了数据，并打印出来
			{
				FD_ZERO(&rfds);
				FD_SET(fd,&rfds);	
				retval = select(fd+1,&rfds,NULL,NULL,&tv);	
				if(!retval)//no datas
				{
					break;
				}       

			} 
		}
		else
		{
			break;
		} 
	}
#endif
		// 试图从串口接收数 据
	//printf("%s\n",RXBUF);
//	for(n = 0; n < RX_len; n++)
//	{
//		printf("%x ",RXBUF[n]);
//	}
	// RXBUF为接收到的数据,RX_len为接收的数据的长度

}

void show_menu()
{
	printf("\n");
	printf(" ==========================================\n");
	printf(" Edukit-IV Fingerprint Identification Test!\n");
	printf(" 1: Add Fingerprint for a person.\n");
	printf(" 2: Fingerprint matching.\n");
	printf(" 3: User manage.\n");
	printf(" ==========================================\n");
}



void init_ttyS(int fd)
{
	struct termios newtio;

	bzero(&newtio, sizeof(newtio));
	tcgetattr(fd, &newtio);					// 得到当前串口的参数
	cfsetispeed(&newtio, B19200);				// 将输入波特率设为19200
	cfsetospeed(&newtio, B19200);				// 将输出波特率设为19200
	newtio.c_cflag |= (CLOCAL | CREAD);			// 使能接收并使能本地状态
	newtio.c_cflag &= ~PARENB;				// 无校验 8位数据位1位停止位
	newtio.c_cflag &= ~CSTOPB;
	newtio.c_cflag &= ~CSIZE;
	newtio.c_cflag |= CS8;
	newtio.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);	// 原始数据输入
	newtio.c_oflag &= ~(OPOST);

	newtio.c_cc[VTIME]    = 0;   				// 设置等待时间和最小接收字符数
	newtio.c_cc[VMIN]     = 0;   

	tcflush(fd, TCIFLUSH);					// 处理未接收的字符
	tcsetattr(fd,TCSANOW,&newtio); 				// 激活新配置
}

/*********************************************************************************************
* name:		InputUsernumber
* func:		用户从串口输入用户号
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void InputUsernumber()
{
	unsigned char cInput[10] = {0};
	unsigned char c = 0;
	unsigned int n;

	printf("\n Input user ID(0x001-0xFFF)\n");
	//printf("/> ");
	n = 0;
	scanf("%c",&c);
	while(n < 3)		
	{
		//c = uart_getchPC();			// 输入用户号
		
		scanf("%c",&c);
		sleep(1);
		//c = getchar();
		//printf("%c",c);
		if(((c >= '0') & (c <= '9')) | ((c >= 'A') & (c <= 'F')) | ((c >= 'a') & (c <= 'f')))
		{
			cInput[n++] = c;
		}
		else
		{
			printf("\n Wrong ID.Please input Again:\n");
			//printf("/> ");
			n = 0;
		}
		// 输入用户号为0的情况
		if (n == 3)
		{
			if ((cInput[0] == '0') & (cInput[1] == '0') & (cInput[2] == '0'))
			{
				printf("\n The ID can be 0.Please input Again:\n");
				//printf("/> ");
				n = 0;
			}
		}		
	}
	// 提取用户号
	USER_NUMBER_H = CharToHex(cInput[0]);			// 用户号高8位
	USER_NUMBER_L = CharToHex(cInput[1])*16 + CharToHex(cInput[2]);		// 用户号低8位
	//printf("%x + %x \n",USER_NUMBER_H,USER_NUMBER_L);
}

/*********************************************************************************************
* name:		InputUserright
* func:		用户从串口输入用户权限
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void InputUserright()
{
	unsigned char c = 0;
	unsigned int	g_nKeyPress;

	printf("\n Input user right:(1/2/3)\n");
	//printf("/> ");
	g_nKeyPress = 1;
	scanf("%c",&c);
	while(g_nKeyPress == 1)		
	{
		//c = uart_getchPC();				// 输入用户权限
		
		scanf("%c",&c);
		sleep(1);
		//c = getchar();
		//printf("%c",c);
		if((c == '1') | (c == '2') | (c == '3'))
		{
			break;
		}
		else
		{
			printf("\n Error.Please input Again:\n");
		}	
	}
	// 提取用户权限
	USER_RIGHT = CharToHex(c);
}

/*********************************************************************************************
* name:		CharToHex
* func:		把字符转换为16进制数字，例如'0'变为0x0，'F'变为0xF
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
unsigned char CharToHex(unsigned char ch)
{
	unsigned char HEX;
	// 字符转换为16进制数字
	if ((ch >= '0') & (ch <= '9'))
	{
		HEX = ch - '0';
	}
	else if ((ch >= 'a') & (ch <= 'f'))
	{
		HEX = ch - 'a' + 10;
	}
	else
	{
		HEX = ch - 'A' + 10;
	}
	
	return HEX;
}
/*********************************************************************************************
* name:		select_del_oneuser
* func:		删除指定用户
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void select_del_oneuser()
{
	unsigned char is_ok;
	
	printf("\n Delete a user!\n");
	InputUsernumber();				// 获取用户号

	is_ok = del_oneuser(USER_NUMBER_H, USER_NUMBER_L);
	if (is_ok == ACK_SUCCESS)
	{
		printf("\n Delete a user success!\n");
	}
	else
	{
		printf("\n Delete a user failed!\n");
	}	
}

int select_add_Fingerprint()
{
	unsigned char is_ok;
	unsigned char time_number;		// 第几次添加指纹
	unsigned char FailNumber;

	InputUsernumber();				// 获取用户号
	InputUserright();				// 获取用户权限

	printf("\n Add first...\n");
	time_number = 0x01;				// 第一次添加
	is_ok = ACK_FAIL;
	FailNumber = 0;
	while ((is_ok == ACK_FAIL) & (FailNumber < ACK_COUNT))
	{	
	
		is_ok = add_Fingerprint(time_number, USER_NUMBER_H, USER_NUMBER_L, USER_RIGHT);

		if (is_ok == ACK_SUCCESS)
		{
			printf(" First OK!\n");
			break;
		}
		else if (is_ok == ACK_FULL)
		{
			printf(" Full!\n");
			FailNumber++;
		}
		else if (is_ok == ACK_NOUSER)
		{
			printf(" ID has been exist!\n");
			FailNumber++;
		}
		else
		{
			FailNumber++;
			printf(" Error %dth!\n",FailNumber);