由于开发环境迁移到了Redhat6.2环境上，估重新整理了dnw for linux，以下代码均已通过验证
/* dnw linux main file. This depends on libusb.
* You should use lsusb to find out the actual vender ID & product ID of board.
* License: GPL
*/
/*
// FS2410
#define RAM_BASE FS2410_RAM_BASE
#define VENDOR_ID FS2410_VENDOR_ID
#define PRODUCT_ID FS2410_PRODUCT_ID
*/
// EZ6410
struct usb_dev_handle * open_port()
{
struct usb_bus *busses, *bus;
usb_init();
usb_find_busses();
usb_find_devices();
busses = usb_get_busses();
for(bus=busses;bus;bus=bus->next)
{
struct usb_device *dev;
for(dev=bus->devices;dev;dev=dev->next)
{
if( VENDOR_ID==dev->descriptor.idVendor
&& PRODUCT_ID==dev->descriptor.idProduct)
{
printf("Target usb device found!\n");
struct usb_dev_handle *hdev = usb_open(dev);
if(!hdev)
{
perror("Cannot open device");
}
else
{
if(0!=usb_claim_interface(hdev, 0))
{
perror("Cannot claim interface");
usb_close(hdev);
hdev = NULL;
}
}
return hdev;
}
}
}
printf("Target usb device not found!\n");
return NULL;
}
void usage()
{
printf("Usage: dnw2 <file>\n\n");
}
static u_int16_t ace_csum(const unsigned char *data, u_int32_t len)
{
u_int16_t csum = 0;
int j;
for (j = 0; j < len; j ++) {
csum += data[j];
}
return csum;
}
unsigned char* prepare_write_buf(char *filename, unsigned int *len)
{
unsigned char *write_buf = NULL;
struct stat fs;
int fd = open(filename, O_RDONLY);
if(-1==fd)
{
perror("Cannot open file");
return NULL;
}
if(-1==fstat(fd, &fs))
{
perror("Cannot get file size");
goto error;
}
write_buf = (unsigned char*)malloc(fs.st_size+10);
if(NULL==write_buf)
{
perror("malloc failed");
goto error;
}
if(fs.st_size != read(fd, write_buf+8, fs.st_size))
{
perror("Reading file failed");
goto error;
}
printf("Filename : %s\n", filename);
printf("Filesize : %lu bytes\n", fs.st_size);
*((u_int32_t*)write_buf) = RAM_BASE; //download address
*((u_int32_t*)write_buf+1) = fs.st_size + 10; //download size;
*len = fs.st_size + 10;
// calculate checksum value
u_int16_t csum = ace_csum(write_buf+8, fs.st_size);
*(write_buf+fs.st_size+8) = csum & 0xff;
*(write_buf+fs.st_size+9) = (csum >> 8) & 0xff;
return write_buf;
error:
if(fd!=-1) close(fd);
if(NULL!=write_buf) free(write_buf);
fs.st_size = 0;
return NULL;
}
int main(int argc, char *argv[])
{
if(2!=argc)
{
usage();
return 1;
}
struct usb_dev_handle *hdev = open_port();
if(!hdev)
{
return 1;
}
unsigned int len = 0;
unsigned char* write_buf = prepare_write_buf(argv[1], &len);
if(NULL==write_buf) return 1;
unsigned int remain = len;
unsigned int towrite;
printf("Writing data ...\n");
while(remain)
{
towrite = remain>512 ? 512 : remain;
if(towrite != usb_bulk_write(hdev, 0x02, write_buf+(len-remain), towrite, 3000))
{
perror("usb_bulk_write failed");
break;
}
remain-=towrite;
printf("\r%d%%\t %d bytes ", (len-remain)*100/len, len-remain);
fflush(stdout);
}
if(0==remain) printf("Done!\n");
return 0;
}
由于开发环境迁移到了Redhat6.2环境上，估重新整理了dnw for linux，以下代码均已通过验证
/* dnw linux main file. This depends on libusb.
* You should use lsusb to find out the actual vender ID & product ID of board.
* License: GPL
*/
/*
// FS2410
#define RAM_BASE FS2410_RAM_BASE
#define VENDOR_ID FS2410_VENDOR_ID
#define PRODUCT_ID FS2410_PRODUCT_ID
*/
// EZ6410
struct usb_dev_handle * open_port()
{
struct usb_bus *busses, *bus;
usb_init();
usb_find_busses();
usb_find_devices();
busses = usb_get_busses();
for(bus=busses;bus;bus=bus->next)
{
struct usb_device *dev;
for(dev=bus->devices;dev;dev=dev->next)
{
if( VENDOR_ID==dev->descriptor.idVendor
&& PRODUCT_ID==dev->descriptor.idProduct)
{
printf("Target usb device found!\n");
struct usb_dev_handle *hdev = usb_open(dev);
if(!hdev)
{
perror("Cannot open device");
}
else
{
if(0!=usb_claim_interface(hdev, 0))
{
perror("Cannot claim interface");
usb_close(hdev);
hdev = NULL;
}
}
return hdev;
}
}
}
printf("Target usb device not found!\n");
return NULL;
}
void usage()
{
printf("Usage: dnw2 <file>\n\n");
}
static u_int16_t ace_csum(const unsigned char *data, u_int32_t len)
{
u_int16_t csum = 0;
int j;
for (j = 0; j < len; j ++) {
csum += data[j];
}
return csum;
}
unsigned char* prepare_write_buf(char *filename, unsigned int *len)
{
unsigned char *write_buf = NULL;
struct stat fs;
int fd = open(filename, O_RDONLY);
if(-1==fd)
{
perror("Cannot open file");
return NULL;
}
if(-1==fstat(fd, &fs))
{
perror("Cannot get file size");
goto error;
}
write_buf = (unsigned char*)malloc(fs.st_size+10);
if(NULL==write_buf)
{
perror("malloc failed");
goto error;
}
if(fs.st_size != read(fd, write_buf+8, fs.st_size))
{
perror("Reading file failed");
goto error;
}
printf("Filename : %s\n", filename);
printf("Filesize : %lu bytes\n", fs.st_size);
*((u_int32_t*)write_buf) = RAM_BASE; //download address
*((u_int32_t*)write_buf+1) = fs.st_size + 10; //download size;
*len = fs.st_size + 10;
// calculate checksum value
u_int16_t csum = ace_csum(write_buf+8, fs.st_size);
*(write_buf+fs.st_size+8) = csum & 0xff;
*(write_buf+fs.st_size+9) = (csum >> 8) & 0xff;
return write_buf;
error:
if(fd!=-1) close(fd);
if(NULL!=write_buf) free(write_buf);
fs.st_size = 0;
return NULL;
}
int main(int argc, char *argv[])
{
if(2!=argc)
{
usage();
return 1;
}
struct usb_dev_handle *hdev = open_port();
if(!hdev)
{
return 1;
}
unsigned int len = 0;
unsigned char* write_buf = prepare_write_buf(argv[1], &len);
if(NULL==write_buf) return 1;
unsigned int remain = len;
unsigned int towrite;
printf("Writing data ...\n");
while(remain)
{
towrite = remain>512 ? 512 : remain;
if(towrite != usb_bulk_write(hdev, 0x02, write_buf+(len-remain), towrite, 3000))
{
perror("usb_bulk_write failed");
break;
}
remain-=towrite;
printf("\r%d%%\t %d bytes ", (len-remain)*100/len, len-remain);
fflush(stdout);
}
if(0==remain) printf("Done!\n");
return 0;
}
