vtp_test.c

linux下的VTPplayer驱动程序

/*
 * Copyright (C) 2004-2007 Christophe Jacquet <[e-mail]>
 *
 * See <vtplayer.c> and the associated documentation for more information.
 *
 * 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 program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy 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 <stdlib.h>
#include <stdio.h>

#include "libvtplayer.h"

int main(int argc, char **argv) {
  VTPLAYER vtp;
  unsigned int b1, b2, b3, b4;  /* Four bytes */
  int ret;

  if(argc != 5+1) {
    fprintf(stderr, "Expecting 5 arguments, but found %d instead.\n", argc);
    fprintf(stderr, "Usage: %s <device_node> <xx> <yy> <zz> <tt>\n", argv[0]);
    return EXIT_FAILURE;
  }

  if(
     sscanf(argv[2], "%x", &b1) != 1 ||
     sscanf(argv[3], "%x", &b2) != 1 ||
     sscanf(argv[4], "%x", &b3) != 1 ||
     sscanf(argv[5], "%x", &b4) != 1) {
    fprintf(stderr, "Error: could not parse hexadecimal number!\n");
    return EXIT_FAILURE;
  }

  if((vtp = vtplayer_open(argv[1])) != -1 ) {
    fprintf(stderr, "VTPlayer device opened: %s.\n", argv[1]);
  } else {
    fprintf(stderr, "Failed to open VTPlayer device '%s'.\n", argv[1]);
    return EXIT_FAILURE;
  }

  if((ret = vtplayer_set(vtp, b1, b2, b3, b4)) >= 0) {
    fprintf(stderr, "Pad configuration set.\n");
  } else {
    fprintf(stderr, "Failed to sed pad configuration: %d\n", ret);
    return EXIT_FAILURE;
  }

  if((ret = vtplayer_close(vtp)) >= 0) {
    fprintf(stderr, "Device closed.\n");
  } else {
    fprintf(stderr, "Failed to close device: %d.\n", ret);
    return EXIT_FAILURE;
  }


  return EXIT_SUCCESS;
}