AndroidTxRx

ifneq ($(TARGET_SIMULATOR),true)
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_CFLAGS += -Wall
LOCAL_LDLIBS := -L$(LOCAL_PATH)/lib -llog -g
LOCAL_C_INCLUDES := bionic
LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
LOCAL_SRC_FILES:= send.c
LOCAL_MODULE := send
include $(BUILD_EXECUTABLE)
include $(CLEAR_VARS)
LOCAL_CFLAGS += -Wall
LOCAL_LDLIBS := -L$(LOCAL_PATH)/lib -llog -g
LOCAL_C_INCLUDES := bionic
LOCAL_C_INCLUDES += $(LOCAL_PATH)/include
LOCAL_SRC_FILES:= recieve.c
LOCAL_MODULE := recieve
include $(BUILD_EXECUTABLE)
endif  # TARGET_SIMULATOR != true


#Send.call
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <pthread.h>
#include <errno.h>
 

        
#define BAUDRATE B4000000 
#define MODEMDEVICE "/dev/ttymxc2"
#define _POSIX_SOURCE 1 /* POSIX compliant source */
#define FALSE 0
#define TRUE 1
 
FILE *file;
int fileLen;
char *tmpbuffer;
void openport(void);
void* sendport(void* arg) ;
int fd=0;
struct termios oldtp, newtp;
 
int main()
{
 
        pthread_t m_pt1;
        pthread_t m_pt2;
	openport();
	sleep(1);
        if(pthread_create(&m_pt1,NULL,sendport,NULL))
        {
          fprintf(stderr, "Error creating thread\n");
          return 1;  
        }
#if 0
        if(pthread_create(&m_pt2,NULL,readport,NULL))
        {
          fprintf(stderr, "Error creating thread\n");
          return 1;
        }
#endif
        /* wait for the thread to finish */
       if(pthread_join(m_pt1, NULL)) {
          fprintf(stderr, "Error joining thread\n");
          return 2;
       }
#if 0
       if(pthread_join(m_pt2, NULL)) {
          fprintf(stderr, "Error joining thread\n");
          return 2;
       }
#endif

       return 0;  
}
 
void* sendport(void* arg)
{
        printf("enter write\n");
        int n;
        file = fopen("sample.txt", "r");
                //get file size

        fseek(file, 0, SEEK_END);
        fileLen = ftell(file);
        fseek(file, 0, SEEK_SET);
 
        tmpbuffer = (char *)malloc(fileLen);
        //read file contents
        printf("Start send\n");
        fread(tmpbuffer, fileLen, 1, file);
        fclose(file);
        n = write(fd, tmpbuffer,fileLen + 1);
 
        if (n < 0)
         {
           fputs("write() of bytes failed!\n", stderr);
          }
        else
        {
          printf("Image sent successfully %d\n",n-1);
        }
              
         close(fd);
         return NULL;
 
}
#if 0
void*  readport(void* arg)
{
	unsigned char buff;
        int n;
        printf("Enter read");
	file = fopen( "/sdcard/zname.txt", "w+" );
     
while (1) { 
     printf("Inside readport loop");
     n = read(fd, &buff, 1);
//	fcntl(fd,F_SETFL,0);
  if (n == -1){ 
     switch(errno) {
         case EAGAIN: /* sleep() */ 
            continue;
          
         default: goto quit;
         }
    }
  if (n ==0) break;
   fputc(buff, file);
   printf("%d %c\n", n,buff);
  }
quit:
   fclose (file);

 return NULL;
}
#endif
void openport(void)
{
         fd = open(MODEMDEVICE, O_RDWR | O_NOCTTY |O_NDELAY );
	 printf("fd is %d\n",fd);
         if (fd <0)
         {
         perror(MODEMDEVICE);         }
                                                                           
         fcntl(fd,F_SETFL,0);
        tcgetattr(fd,&oldtp); /* save current serial port settings */
        // tcgetattr(fd,&newtp); /* save current serial port settings */
         bzero(&newtp, sizeof(newtp));
        // bzero(&oldtp, sizeof(oldtp));
                                                                                
         newtp.c_cflag = BAUDRATE | CS8 | CLOCAL | CREAD;
        // newtp.c_cflag = BAUDRATE;
         

                                                                                
         newtp.c_iflag = IGNPAR | ICRNL;
                                                                                
         newtp.c_oflag = 0;
                                                                                
         newtp.c_lflag = ICANON;
                                                                                
         newtp.c_cc[VINTR]    = 0;     /* Ctrl-c */
         newtp.c_cc[VQUIT]    = 0;     /* Ctrl-\ */
         newtp.c_cc[VERASE]   = 0;     /* del */
         newtp.c_cc[VKILL]    = 0;     /* @ */
         //newtp.c_cc[VEOF]     = 4;     /* Ctrl-d */
         newtp.c_cc[VEOF]     = 0;     /* Ctrl-d */
         newtp.c_cc[VTIME]    = 0;     /* inter-character timer unused */
         newtp.c_cc[VMIN]     = 1;     /* blocking read until 1 character arrives */
         newtp.c_cc[VSWTC]    = 0;     /* '\0' */
         newtp.c_cc[VSTART]   = 0;     /* Ctrl-q */
         newtp.c_cc[VSTOP]    = 0;     /* Ctrl-s */
         newtp.c_cc[VSUSP]    = 0;     /* Ctrl-z */
         newtp.c_cc[VEOL]     = 0;     /* '\0' */
         newtp.c_cc[VREPRINT] = 0;     /* Ctrl-r */
         newtp.c_cc[VDISCARD] = 0;     /* Ctrl-u */
         newtp.c_cc[VWERASE]  = 0;     /* Ctrl-w */
         newtp.c_cc[VLNEXT]   = 0;     /* Ctrl-v */
         newtp.c_cc[VEOL2]    = 0;     /* '\0' */
                                                                                
                                                                                
        tcflush(fd, TCIOFLUSH);
	tcsetattr(fd,TCSANOW,&newtp);

}


#Receive.c
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>        
#include <stdlib.h> 
#define BAUDRATE B115200 
#define MODEMDEVICE "/dev/ttymxc2"/*UART NAME IN PROCESSOR*/
#define _POSIX_SOURCE 1 /* POSIX compliant source */
#define FALSE 0
#define TRUE 1
void openport(void);
void sendport(void);
void readport(void);
int fd=0, n;
static int cnt, size, s_cnt;
unsigned char *var;
struct termios oldtp, newtp;
char sendcmd1[10]="\0";
FILE *file;
 
void  readport(void)
{
	unsigned char buff;
	file = fopen( "/sdcard/zname.txt", "w+" );
while (1) { 
     printf("Inside readport loop");
     n = read(fd, &buff, 1);
//	fcntl(fd,F_SETFL,0);
  if (n == -1){ 
     switch(errno) {
         case EAGAIN: /* sleep() */ 
            continue;
          
         default: goto quit;
         }
    }
  if (n ==0) break;
   fputc(buff, file);
   printf("%d %c\n", n,buff);
  }
quit:
   fclose (file);
}
void openport(void)
{
         
	 fd = open(MODEMDEVICE, O_RDWR | O_NOCTTY |O_NDELAY );
	 printf("file descriptor is :%d\n",fd);
         if (fd <0)
         {
         	perror(MODEMDEVICE);
 
         }
                                                                                
         fcntl(fd,F_SETFL,0);
         tcgetattr(fd,&oldtp); /* save current serial port settings */
    //     tcgetattr(fd,&newtp); /* save current serial port settings */
         bzero(&newtp, sizeof(newtp));
  //       bzero(&oldtp, sizeof(oldtp));
                                                                                
         newtp.c_cflag = BAUDRATE | CS8 | CLOCAL | CREAD;
                                                                                
         newtp.c_iflag = IGNPAR | ICRNL;
                                                                                
         newtp.c_oflag = 0;                                                                        
         newtp.c_lflag = ICANON;                                                                    
         newtp.c_cc[VINTR]    = 0;     /* Ctrl-c */
         newtp.c_cc[VQUIT]    = 0;     /* Ctrl-\ */
         newtp.c_cc[VERASE]   = 0;     /* del */
         newtp.c_cc[VKILL]    = 0;     /* @ */
        // newtp.c_cc[VEOF]     = 4;     /* Ctrl-d */
         newtp.c_cc[VTIME]    = 0;     /* inter-character timer unused */
         newtp.c_cc[VMIN]     = 0;     /* blocking read until 1 character arrives */
         newtp.c_cc[VSWTC]    = 0;     /* '\0' */
         newtp.c_cc[VSTART]   = 0;     /* Ctrl-q */
         newtp.c_cc[VSTOP]    = 0;     /* Ctrl-s */
         newtp.c_cc[VSUSP]    = 0;     /* Ctrl-z */
         newtp.c_cc[VEOL]     = 0;     /* '\0' */
         newtp.c_cc[VREPRINT] = 0;     /* Ctrl-r */
         newtp.c_cc[VDISCARD] = 0;     /* Ctrl-u */
         newtp.c_cc[VWERASE]  = 0;     /* Ctrl-w */
         newtp.c_cc[VLNEXT]   = 0;     /* Ctrl-v */
         newtp.c_cc[VEOL2]    = 0;     /* '\0' */
   	                                                                                                                                             
       tcflush(fd, TCIFLUSH);
       tcsetattr(fd,TCSANOW,&newtp);

}
 
int  main()
{
 
	openport();
	readport();
        return 0;
}