ARM-Linux驱动移植--Linux下烧写工具DNW和USB驱动安装

主机平台：Gentoo Linux 11.2 with linux kernel 3.0.6

硬件平台：FL2440（S3C2440）with linux kernel 2.6.35

原创作品，转载请标明出处http://blog.csdn.net/yming0221/article/details/7211396

1、首先下载DNW for linux http://download.csdn.net/source/1011140

2、解压文件




、

3、编译主机的USB驱动

make -C /lib/modules/`uname -r`/build M=`pwd` modules

然后insmod安装驱动并dmesg查看如下



4、修改dnw.c文件并编译

由于FL2440烧写内核需要设置初始地址为0x30800000，修改后文件如下

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

const char* dev = "/dev/secbulk0";

int main(int argc, char* argv[])
{
unsigned char* file_buffer = NULL;
if( 2 != argc )
{
printf("Usage: dwn <filename>\n");
return 1;
}

int fd = open(argv[1], O_RDONLY);
if(-1 == fd)
{
printf("Can not open file - %s\n", argv[1]);
return 1;
}

struct stat file_stat;
if( -1 == fstat(fd, &file_stat) )
{
printf("Get file size filed!\n");
return 1;
}

file_buffer = (char*)malloc(file_stat.st_size+10);
if(NULL == file_buffer)
{
printf("malloc failed!\n");
goto error;
}
if( file_stat.st_size !=  read(fd, file_buffer+8, file_stat.st_size))
{
printf("Read file failed!\n");
goto error;
}

printf("file name : %s\n", argv[1]);
printf("file size : %d bytes\n", file_stat.st_size);

int fd_dev = open(dev, O_WRONLY);
if( -1 == fd_dev)
{
printf("Can not open %s\n", dev);
goto error;
}

*((unsigned long*)file_buffer) = 0x30800000; 	//load address
*((unsigned long*)file_buffer+1) = file_stat.st_size+10;	//file size
unsigned short sum = 0;
int i;
for(i=8; i<file_stat.st_size+8; i++)
{
sum += file_buffer[i];
}

printf("Writing data...\n");
size_t remain_size = file_stat.st_size+10;
//	size_t block_size = remain_size / 100;
size_t block_size = 512;
size_t writed = 0;
while(remain_size>0)
{
size_t to_write = remain_size > block_size ? block_size:remain_size;
if( to_write != write(fd_dev, file_buffer+writed, to_write))
{
printf("failed!\n");
return 1;
}
remain_size -= to_write;
writed += to_write;
printf("\r%d%\t %d bytes     ", writed*100/(file_stat.st_size+10), writed);
fflush(stdout);

}

printf("OK\n");
return 0;

error:
if(-1!=fd_dev) close(fd_dev);
if(fd != -1) close(fd);
if( NULL!=file_buffer )
free(file_buffer);
return -1;
}

最后烧写内核