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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2010 Amaury Pouly
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#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;
}
struct dev_info_t
{
uint16_t vendor_id;
uint16_t product_id;
unsigned xfer_size;
};
struct dev_info_t g_dev_info[] =
{
{0x066f, 0x3780, 1024}, /* i.MX233 / STMP3780 */
{0x066f, 0x3770, 48}, /* STMP3770 */
{0x15A2, 0x004F, 1024}, /* i.MX28 */
};
int main(int argc, char **argv)
{
int ret;
FILE *f;
int i, xfer_size, nr_xfers, recv_size;
if(argc != 3)
{
printf("usage: %s <xfer size> <file>\n", argv[0]);
printf("If <xfer size> is set to zero, the preferred one is used.\n");
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);
for(unsigned i = 0; i < sizeof(g_dev_info) / sizeof(g_dev_info[0]); i++)
{
dev = libusb_open_device_with_vid_pid(NULL,
g_dev_info[i].vendor_id, g_dev_info[i].product_id);
if(dev == NULL)
continue;
if(xfer_size == 0)
xfer_size = g_dev_info[i].xfer_size;
printf("Found a match for %04x:%04x\n",
g_dev_info[i].vendor_id, g_dev_info[i].product_id);
break;
}
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);
uint8_t *xfer_buf = malloc(1 + xfer_size);
uint8_t *p = xfer_buf;
*p++ = 0x01; /* Report id */
/* Command block wrapper */
*p++ = 'B'; /* Signature */
*p++ = 'L';
*p++ = 'T';
*p++ = 'C';
put32le(p, 0x1); /* Tag */
p += 4;
put32le(p, size); /* Payload size */
p += 4;
*p++ = 0; /* Flags (host to device) */
p += 2; /* Reserved */
/* Command descriptor block */
*p++ = 0x02; /* Firmware download */
put32be(p, size); /* Download size */
ret = libusb_control_transfer(dev,
LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_INTERFACE, 0x9, 0x201, 0,
xfer_buf, xfer_size + 1, 1000);
if(ret < 0)
{
printf("transfer error at init step\n");
return 1;
}
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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