update.c

2440 下使用SD卡更新firmware 的方法,请参看具体代码.

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <stdlib.h>

#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/poll.h>
#include <linux/delay.h>
//#include "DisplayInt.h"
//#include "einkcmd.h"

//int pio_fd = -1;
#define READSIZE (2048+64)
//int READSIZE= 0;
#define def_true 1
#define def_false 0
#define UpdateAp_only 0

//Joe
#define UBOOT_SIZE	0x40000L
#define KERNEL_SIZE	0x1c0000L
#define ROOTFS_SIZE	0x1E00000L
#define AP_SIZE	0x1E00000L
//#define BMP_SIZE	131072L


int BmpUpdate =0;
int UbootUpdte =0;
int KernelUpdate =0;
int RootUpdate =0;
int HasUpdate =0;

char *sd_part="/mnt/mmc/";
char *ebr_uboot="/dev/mtdblock0";
char *ebr_kernel="/dev/mtdblock1";
char *ebr_root="/dev/mtdblock2";
char *ebr_app="/dev/mtdblock3";
char *ebr_openbmp=NULL;

const char *uboot_file = "u-boot.bin";
const char *kernel_file = "uImage";
const char *rootfs_file = "rootfs.img";
const char *ap_file       = "qte.img";
const char *update_dir = "/mnt/mmc/";

static unsigned char Full_buf[READSIZE]= {0};

int main ()
{	
	unsigned char result, update_file=1;
	unsigned long file_len;
	FILE *fp;
	char tmp[50];
	
	if(access("/mnt/mmc/qte.img", F_OK)==0){
		// copy file to update space
		system("cp /mnt/mmc/qte.img /usr/update -f");
		system("sync");
		printf("copy rootfs to /usr/update successful!!\n");
		sleep(1);
	}else if(access("/mnt/mmc/rootfs.img", F_OK)==0){
		// copy file to update space
		system("cp /mnt/mmc/rootfs.img /usr/update -f");
		system("sync");
		printf("copy rootfs to /usr/update successful!!\n");
		sleep(1);		
	}else if(access("/mnt/mmc/uImage", F_OK)==0){
		system("cp /mnt/mmc/uImage /usr/update -f");
		system("sync");
		printf("copy uImage to /usr/update successful!!\n");
		sleep(1);
	}else if(access("/mnt/mmc/u-boot.bin", F_OK)==0){
		system("cp /mnt/mmc/u-boot.bin /usr/update -f");
		system("sync");
		printf("copy uboot to /usr/update successful!!\n");
		sleep(1);
	}
	else{
		printf("Not found update file.\n");	
		update_file = 0;
	}
	// tell user turn on and take out sd card.
	system("reboot");
	return 0;
}