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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libusb.h>
#include <stdint.h>
void put32le(uint8_t *buf, uint32_t i)
{
*buf++ = i & 0xff;
*buf++ = (i >> 8) & 0xff;
*buf++ = (i >> 16) & 0xff;
*buf++ = (i >> 24) & 0xff;
}
void put32be(uint8_t *buf, uint32_t i)
{
*buf++ = (i >> 24) & 0xff;
*buf++ = (i >> 16) & 0xff;
*buf++ = (i >> 8) & 0xff;
*buf++ = i & 0xff;
}
int main(int argc, char **argv)
{
int ret;
uint8_t msg[0x20];
uint8_t *p;
FILE *f;
int i, xfer_size, nr_xfers, recv_size;
if(argc != 3)
{
printf("usage: %s <xfer size> <file>\n", argv[0]);
return 1;
}
char *end;
xfer_size = strtol(argv[1], &end, 0);
if(end != (argv[1] + strlen(argv[1])))
{
printf("Invalid transfer size !\n");
return 1;
}
libusb_device_handle *dev;
libusb_init(NULL);
libusb_set_debug(NULL, 3);
/* MX23 */
dev = libusb_open_device_with_vid_pid(NULL, 0x066F, 0x3780);
if(dev == NULL)
/* MX28 */
dev = libusb_open_device_with_vid_pid(NULL, 0x15A2, 0x004F);
if(dev == NULL)
{
printf("Cannot open device\n");
return 1;
}
libusb_detach_kernel_driver(dev, 0);
libusb_detach_kernel_driver(dev, 4);
libusb_claim_interface (dev, 0);
libusb_claim_interface (dev, 4);
if (!dev)
{
printf("No dev\n");
exit(1);
}
f = fopen(argv[2], "r");
if(f == NULL)
{
perror("cannot open file");
return 1;
}
fseek(f, 0, SEEK_END);
size_t size = ftell(f);
fseek(f, 0, SEEK_SET);
printf("Transfer size: %d\n", xfer_size);
nr_xfers = (size + xfer_size - 1) / xfer_size;
uint8_t *file_buf = malloc(nr_xfers * xfer_size);
memset(file_buf, 0xff, nr_xfers * xfer_size); // pad with 0xff
if(fread(file_buf, size, 1, f) != 1)
{
perror("read error");
fclose(f);
return 1;
}
fclose(f);
memset(msg, 0, 0x20);
p = msg;
*p++ = 0x01; // Init upload command
*p++ = 'B'; // Signature
*p++ = 'L';
*p++ = 'T';
*p++ = 'C';
put32le(p, 0x1); // I guess version or sub-command
p += 4;
put32le(p, size); // Payload size
// The second command starts at 0x20
p = &msg[0x10];
*p++ = 0x02; // Start upload
put32be(p, size); // Payload size, again
ret = libusb_control_transfer(dev,
LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_INTERFACE, 0x9, 0x201, 0,
msg, 0x20, 1000);
if(ret < 0)
{
printf("transfer error at init step\n");
return 1;
}
uint8_t *xfer_buf = malloc(1 + xfer_size);
for(i = 0; i < nr_xfers; i++)
{
xfer_buf[0] = 0x2;
memcpy(&xfer_buf[1], &file_buf[i * xfer_size], xfer_size);
ret = libusb_control_transfer(dev,
LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_INTERFACE,
0x9, 0x202, 0, xfer_buf, xfer_size + 1, 1000);
if(ret < 0)
{
printf("transfer error at send step %d\n", i);
return 1;
}
}
ret = libusb_interrupt_transfer(dev, 0x81, xfer_buf, xfer_size, &recv_size,
1000);
if(ret < 0)
{
printf("transfer error at final stage\n");
return 1;
}
printf("ret %i\n", ret);
return 0;
}
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