csu3_am335x/EVSE/Projects/Taurus/Apps/UpdateRootfs.c

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <linux/termios.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/mman.h>
#include <linux/sockios.h> 
#include <linux/socket.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/time.h> 
#include <sys/timeb.h> 
#include <math.h>//for pow
#include "../../define.h"


int main(int argc,char *argv[])
{
	unsigned int MaxLen=25*1024*1024, ImageLen=0;
	unsigned char *ptr; 
	int fd,wrd;
	
	ptr=malloc(MaxLen);
	if(ptr==NULL)
	{
		printf("UpdateRootfs NG - can not malloc\n");
		return 0;
	}	
	memset(ptr,0xFF,MaxLen);
	
	fd = open(argv[1], O_RDONLY);
	if(fd < 0)
	{
		printf("UpdateRootfs NG - can not open rootfs\n");
		free(ptr);
		return 0;
	}
    	ImageLen=read(fd,ptr,MaxLen);
	close(fd);	
	printf("ImageLen=0x%x\n",ImageLen);
	if(ImageLen<(24*1024*1024))
	{
		printf("ImageLen size mismatch\n");
		free(ptr);
		return 0;
	}	
	fd = open("/dev/mtdblock8", O_RDWR);
	if (fd < 0) 
	{
		printf("UpdateRootfs NG - can not open mtdblock8\n");
		free(ptr);
		return 0;
    	}
    	wrd=write(fd, ptr, ImageLen);   
    	close(fd);
   	if(wrd!=ImageLen)
	{	
		printf("UpdateRootfs NG - wrd(0x%x) != ImageLen(0x%x)\n",wrd,ImageLen);
		free(ptr);
		return 0;
	}	
	free(ptr);
	printf("UpdateRootfs OK\n");
}