ear.c

attendace system on 8051 chipset from intel.

/*********************************Sheena************************************/
#include "reg52\reg52.h"
#include "stdlib\stdlib.h"
#include "delay\delay.h"
#include "string\string.h"
//#include "keyboard\keyboard.h"
#include "date\date.h"
#include "time\time.h"
//#include "128x64\128x64.h"
#include "2x16LCD\2x16LCD.h"
#include "bmps\JBB.h"
#include "bmps\common.h"
#include "bmps\clock.h"
#include "bmps\calender.h"

#ifndef NULL
#define NULL ((void*)('\0'))
#endif


sbit GREEN_LED          = 0x97;
sbit RED_LED            = 0x94;
sbit BUZZER             = 0x92;
sbit CMD_RECEIVED       = 0x96;
sbit CMD_ACKNOWLEDGE    = 0x95;

sbit COM_SELECT = 0xB3;

#define kbhit() (RI)

#define RESET_DATABASE               'R'        /* Delete all records */
#define RECORD_COUNTS                'C'        /* Get record counts */
#define ATTENDANCE_RECORDS           'A'        /* Get attendance records */
#define FAIL_SAFE_ATTENDANCE_RECORDS 'S'        /* */
#define SET_DATE                     'D'        /* Set system date */
#define SET_TIME                     'T'        /* Set system time */
#define GET_DATE                     'G'        /* Get system date */
#define GET_TIME                     'H'        /* Get system time */
#define REGISTER                     'E'        /* Register RFID */
#define RUN                          'F'        /* */
#define DISPLAY_RFID                 'I'        /* Identification */

#define RESEND_COMMAND()             RC = 0; delay(5000); RC = 1;

#define RFID_RECEIVED()    (rfid_received)
#define RFID_PROCESSED()   rfid_received = 0; rfid_processed = 1;
#define COMMAND_RECEIVED() (!CMD_RECEIVED)
#define COMMAND_PROCESSED()     CMD_PROCESSED = 0; \
                                delay(25000);      \
                                CMD_PROCESSED = 1;

#define PROCESS_START() GREEN_LED = 1; RED_LED = 0;
#define PROCESS_END()   GREEN_LED = 0; \
                        RED_LED = 1;
                        
#define BUZZER_ON()     BUZZER = 1;
#define BUZZER_OFF()    BUZZER = 0;

/* Application specific code */
#define RFID_LENGTH 10
#define MAX_RECORD_COUNTS 2500

/* Data for serial interrupt */
char rfid[15];
unsigned char index = 0;
char rfid_received = 0;
char rfid_processed = 1;

char xdata display_rfid;

char cr[] = {'\n', 13, 0};

typedef struct
{
        char rfid[14]; //14 bytes
        struct date d;    //4 bytes
        struct time t;    //4 bytes
}AttendanceRecord;        //22 bytes

AttendanceRecord xdata attendance_records[MAX_RECORD_COUNTS];
int xdata record_counts;
int xdata fail_safe_record_counts;

char date_str[10];
char time_str[10];

char xdata reset_mode;

void transmit(char *str);
void updatescreen();

/*
char *readcommand(char *command)
{
        int i = 0;
        char alpha = 0;
        char num = 0;

        CMD_ACKNOWLEDGE = 0;

        while(1)
        {
                *(command + i) = getkey();

                if(*(command + i) == '\r')break;

                if(*(command + i) >= 'A' && *(command + i) <= 'Z')alpha = 1;
                if(*(command + i) >= '0' && *(command + i) <= '9')num = 1;

                if(!alpha && !num)
                {
                        PROCESS_START();
                        CMD_ACKNOWLEDGE = 1;
                        reset_mode = 0;
                        ENABLE_WATCHDOG();
                        while(1);
                }

                alpha = 0;
                num = 0;

                i++;
	}

        *(command + i) = '\0';

        return command;
}
*/
char *readcommand(char *command)
{
        /*
        * We are using RX interrupt for receiving commands,
        * hence the buffer and flag names are bit confusing
        */

        rfid_received = 0;
        rfid_processed = 1;

        CMD_ACKNOWLEDGE = 0;

        //ENABLE_WATCHDOG();

        while(!RFID_RECEIVED());

        strstrcpy(command, rfid);

        rfid_received = 0;
        rfid_processed = 1;

        return command;
}

void lcd2x16displaystr(int x,int y,char *str) // function that displays string to specific quard of lcd
{
        gotoxy(x,y);
        puts(str);
}

void processcommand(char *cmd)
{
        char str[10];
        int i;
        struct date d;
        struct time t;

        char command = *(cmd + 0);
        char *val = cmd + 1;

        //PROCESS_START();
        lcd2x16displaystr(1, 2, "Command process");

        if(command == GET_DATE)
        {
                datetostr(&today, str);
                transmit("Date : ");
                transmit(str);
                transmit(cr);
        }

        if(command == SET_DATE)
        {
                if(val[0] != 0)
                {
                        transmit(val);
                        transmit(cr);
                        strtodate(val, &d);
                        datesetdate(&d);
                }
        }

        if(command == GET_TIME)
        {
                timetostr(&now, str);
                transmit("Time : ");
                transmit(str);
                transmit(cr);
        }

        if(command == SET_TIME)
        {
                if(val[0] != 0)
                {
                        strtotime(val, &t);
                        timesettime(&t);
                }
        }

        if(command == RESET_DATABASE)
        {
                transmit("Resetting database");
                transmit(cr);
                record_counts = 0;
                fail_safe_record_counts = 0;
        }

        if(command == RECORD_COUNTS)
        {
                itoa(record_counts, str, 10);
                transmit("Record counts : ");
                transmit(str);
                transmit(cr);
        }

        if(command == ATTENDANCE_RECORDS)
        {
                for(i = 0; i < record_counts; i++)
                {
                        itoa(i + 1, str, 10);
                        transmit("[");                           //01
                        transmit(attendance_records[i].rfid); //10
                        transmit("     ");                       //05
                        datetostr(&attendance_records[i].d, str);  
                        str[2] = '/';                       
                        transmit(str);                          //05
                        transmit("     ");                      //05
                        timetostr(&attendance_records[i].t, str);
                        str[2] = ':';
                        transmit(str);                         //05
                        transmit("]");                         //01
                }
        }

        if(command == FAIL_SAFE_ATTENDANCE_RECORDS)
        {
                for(i = 0; i < fail_safe_record_counts; i++)
                {
                        delay(20000);

                        itoa(i + 1, str, 10);
                        transmit("[");                           //01
                        transmit(attendance_records[i].rfid); //10
                        transmit("     ");                       //05
                        datetostr(&attendance_records[i].d, str);  
                        str[2] = '/';                       
                        transmit(str);                          //05
                        transmit("     ");                      //05
                        timetostr(&attendance_records[i].t, str);
                        str[2] = ':';
                        transmit(str);                         //05
                        transmit("]");                         //01
                }
        }

        if(command == DISPLAY_RFID)
        {
                display_rfid = ~display_rfid;
        }

        updatescreen();
        //PROCESS_END();