[linux-dvb] Re: info visionplus usb-ter

[Peter Schildmann <peter.schildmann@web.de>]

Hi,

On Wed, Apr 21, 2004 at 02:47:37PM +0200, Andrea Venturi wrote:
> hi,
> 
> we bought this usb dvb-t visionplus dvb-t usb-ter
> 
>   http://www.visionplus.com.tw/visiontv-2.htm
> 
> the main business is "load" any firmware available on the linux host to 
> the chip. but i have not been able to recognize the "firmware" file in 
> the driver directory of the MS OS driver package.. (maybe it's embedded 
> in some of the .sys file there)

Try this:

--------------------------------------------------------------------------
   vp7041fwload.c
--------------------------------------------------------------------------
/*  
 * TwinHan Vision Plus USB-Ter firmware loader
 *
 * Copyright (c) 2004 Peter Schildmann <peter.schildmann@web.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License, as published by the Free Software Foundation.  This
 * program is distributed WITHOUT ANY WARRANTY; without even the
 * implied warranty of merchantability or fitness for a particular
 * purpose.  You should have received a copy of version 2 of the GNU
 * General Public License along with this program; if not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <usb.h>

usb_dev_handle *usb = NULL;
u_int8_t *firmware;
struct stat s;

void die(char* s)
{
    perror(s);
    exit(1);
}

void close_all (void) {
  if(usb != NULL)
    usb_close(usb);

  if(firmware != MAP_FAILED)
    munmap(firmware, s.st_size);
}

int vp7041_write(usb_dev_handle *handle, u_int16_t addr, u_int8_t size, u_int8_t *data)
{
#ifdef DEBUG
  int i;
  printf("0x%04x   %02d   ", addr, size);
  for(i = 0; i < size; i++)
    printf("%02x ", data[i]);
  putchar('\n');
#endif

  int ret = usb_control_msg(handle, USB_TYPE_VENDOR, 0xa0, addr, 0x0, data, size, 500);
  return ret == size;
}

int main(int argc, char *argv[])
{
  int i;
  int fd;

  struct usb_bus *bus;
  struct usb_device *dev;
  struct usb_device *usb_dev = NULL;

  if(argc != 2) {
    fprintf(stderr, "Usage: %s filename\n", argv[0]);
    fprintf(stderr, "Downloads firmware to the TwinHan USB-Ter DVB-T box\n");
    exit(1);
  }

  fd = open(argv[1], O_RDONLY);
  if(fd == -1)
    die(argv[1]);

  if(fstat(fd, &s) < 0) 
    die(argv[1]);

  firmware = (u_int8_t*) mmap(0, s.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
  if(firmware == MAP_FAILED)
    die(argv[1]);

  usb_init();
  usb_find_busses();
  usb_find_devices();

  for (bus = usb_busses; bus; bus = bus->next)
    {
      for (dev = bus->devices; dev; dev = dev->next)
	{
	  if(dev->descriptor.idVendor == 0x1822 && dev->descriptor.idProduct == 0x3201)
	    {
#ifdef DEBUG
	      printf("TwinHan VP-7041 DVB-T box found.\n");
#endif
	      if(usb_dev != NULL) {
		fprintf(stderr,"Multiple VP-7041 found, bailing out.\n");
		exit(1);
	      }
	      usb_dev = dev;
	    }
	}
    }

  if(usb_dev == NULL) {
    fprintf(stderr, "VP-7041 not found.\n");
    exit(1);
  }

  if((usb = usb_open(usb_dev)) == NULL) {
    fprintf(stderr, "Error opening USB device.\n");
    exit(1);
  }

  atexit(close_all);

  if(usb_claim_interface(usb, 0))
    die("Can't claim interface");

  /* -----------------------------------------------------
   * Load firmware
   */

  for(i = 0; i < s.st_size; i += 22)
    {
      u_int16_t addr = ((u_int16_t) firmware[i + 3]) | ((u_int16_t) firmware[i + 4]) << 8;
      if(!vp7041_write(usb, addr, firmware[i + 1], firmware + i + 6))
	{
	  fprintf(stderr, "Firmware download failed\n");
	  exit(1);
	}
    }

  if(usb_release_interface(usb, 0))
    die("Can't release interface");
  
  exit(0);
}

--------------------------------------------------------------------------
   Makefile
--------------------------------------------------------------------------

CFLAGS += -Wall $(shell libusb-config --cflags)
LDFLAGS += $(shell libusb-config --libs)

SRCS = vp7041fwload.c

vp7041fwload: vp7041fwload.o

depend:
	makedepend -- $(CFLAGS) -- $(SRCS)

clean: 
	rm -f vp7041fwload *.o *~

--------------------------------------------------------------------------
   extract-firmware
--------------------------------------------------------------------------

#!/bin/sh

# Extract VP-7041 firmware from Windoze driver (twinload.sys)

DRIVER=twinload.sys
COMMAND="\000\001\000\222\177\000"
PADDING="\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"

printf $COMMAND"\001"$PADDING > twinload.bin
printf $COMMAND"\001"$PADDING >> twinload.bin

# block #1
# start  = 0x30df
# end    = 0x3cbb
dd bs=1 skip=12511 count=3036 if=$DRIVER >> twinload.bin

printf $COMMAND"\000"$PADDING >> twinload.bin
printf $COMMAND"\001"$PADDING >> twinload.bin

# block #2
# start  = 0x097f
# end    = 0x30c5
dd bs=1 skip=2431 count=10054 if=$DRIVER >> twinload.bin

printf $COMMAND"\001"$PADDING >> twinload.bin
printf $COMMAND"\000"$PADDING >> twinload.bin

--------------------------------------------------------------------------

Peter



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