#include <stdio.h> /* Standard input/output definitions */
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#include <string.h> /* String function definitions */
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#include <unistd.h> /* UNIX standard function definitions */
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#include <fcntl.h> /* File control definitions */
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#include <sys/time.h> /* To calulate time taken for operaton */
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//#include <time.h>
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#include <errno.h> /* Error number definitions */
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#include <termios.h> /* terminal control definitions */
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <signal.h>
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//#include <asm-generic/termios.h>
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#define ERROR -1
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#define SUCCESS 1
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#define UART_DEV_NAME "/dev/ttyS2"
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static int bufsize = 4096 ; /* buffer of size 4K */
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//static int bufsize = 2048 ; /* buffer of size 2K */
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//static int bufsize = 320 ; /* buffer of size 320 */
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/* contains varibles required for UART PORT TESTING */
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struct uart_test {
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int fd; /* varibale to store the port file descriptor value */
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long int baudrate; /* baudrate to be set for Tx and Rx */
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int flow_cntrl; /* flow control data */
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struct timeval start_time, end_time,diff_time; /* used to calulate time intervals */
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unsigned int max_delay; /* max delay between send bursts */
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unsigned int random_enable; /* determines if data packets sent are fixed or "random" size */
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};
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struct termios oldtio;
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int fd1,fd2;
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struct uart_test ut;
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char tx_rx;
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int read_flag;
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int writeport(int *fd, unsigned char *chars,int len);
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int readport(int *fd, unsigned char *result);
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int getbaud(int fd);
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long int getbaud_flag(long int baudrate);
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int initport(int fd,long int baudrate,int flow_ctrl);
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int serial_openport(long int baudrate);
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int serial_send_data(int fd,const unsigned char* data);
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void close_port();
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void display_intro();
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void signalHandler();
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int get_rand_value(int max);
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