yepp.c

linux下驱动程序设计的文章

 /*************************************************
 *   nope - open source drivers for the yepp(tm)  *
 *************************************************/

 /* Copyright (c) 2001, James McKenzie.
  *                      All rights reserved
  *
  * By using this file, you agree to the terms and conditions set
  * forth in the LICENCE file which can be found at the top level of
  * the nope distribution. Neither James McKenzie nor anybody else 
  * warranties that it is legal to use this software - that is your
  * problem. 
  *
  * yepp is a trademark of Samsung.
  *
  */

/*
 * yepp.c:
 *
 * Copyright (c) 2001 James McKenzie <[e-mail]>,
 * All rights reserved.
 *
 */

static char rcsid[] =
  "$Id: yepp.c,v 1.29 2001/05/15 10:02:41 root Exp root $";

/*
 * $Log: yepp.c,v $
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 */

#include "project.h"





void
usage (char *name)
{
  printf ("Usage:\n");
  printf ("%s -a [-c file [type]] [-d num] [-e num] ", name);
#ifdef HIFI
  printf ("[-g] [-G] ");
#endif
  printf ("[-p port] [-r] [-u file [type]]");
#ifdef HIFI
  printf (" [-w eweid] [-W eweid] [-z size] ");
#endif
  printf ("\n");
  printf (" -a  	 Erase all files with index>4\n");
  printf (" -c file [type] Upload file into card memory\n");
  printf (" -d num 	 Download file index num from the player\n");
  printf (" -e num 	 Erase file index num from the player\n");
#ifdef HIFI
  printf (" -g  	 Upload random song group from database to base\n");
  printf (" -G  	 Upload random song group from database to card\n");
#endif
  printf (" -p iobase  	 set the base address of the parallel port to use\n");
  printf (" -r  	 releive control of player\n");
  printf (" -u file [type] Upload file into base memory\n");
#ifdef HIFI
  printf (" -w eweid  	 Upload eweid to base\n");
  printf (" -W eweid 	 Upload eweid to card\n");
  printf (" -z size 	 Keep doing -g until freesize<size Kb\n");
#endif
  printf (" 		where type is one of\n");
  printf ("			sc4 mp3 tel data\n");

  exit (1);
}


void
dir (void)
{
  struct yepp_dirent *yd;
  struct yepp_dirent *ptr;
  unsigned char *order, *optr;
  int i;

  optr = order = yepp_getorder ();

  if (!order)
    return;

  i = YEPP_ORDER_LEN;



  ptr = yd = yepp_dir ();

  if (!yd)
    return;


  printf ("Indx Type           Size Attr Name               \n");
  printf ("-------------------------------------------------\n");



  while (i--)
    {
      if (!*optr)
        break;

      ptr = yd;
      while (ptr)
        {

          if (ptr->index == *optr)
            {
              printf ("%4d 0x%02x %14d 0x%02x %s\n",
                      ptr->index, ptr->type, ptr->size, ptr->attr, ptr->name);
              ptr->user = 1;
            }


          ptr = ptr->next;
        }


      optr++;
    }


  ptr = yd;
  while (ptr)
    {

      if (!ptr->user)
        {
          printf ("%4d 0x%02x %14d 0x%02x %s\n",
                  ptr->index, ptr->type, ptr->size, ptr->attr, ptr->name);
        }

      ptr = ptr->next;
    }


  yepp_dir_free (yd);
  printf ("\n");

  free (order);

}

void
status (void)
{
  struct yepp_status *ys;

  ys = yepp_status ();

  if (!ys)
    return;


  printf ("Status:\n");
  printf ("  Base: %d/%d Kbytes free\n", ys->main.free, ys->main.size);
  printf ("  Card: %d/%d Kbytes free\n", ys->card.free, ys->card.size);
  free (ys);


}

void
order (void)
{
  unsigned char *order, *ptr;
  int i;


  ptr = order = yepp_getorder ();

  if (!order)
    return;

  i = YEPP_ORDER_LEN;

  printf ("Playorder:");
  while (i--)
    {
      printf (" %d", *(ptr++));
      if (!*ptr)
        break;
    }

  printf ("\n");

  free (order);

}


void
do_setorder (char **list, int n)
{
  unsigned char order[YEPP_ORDER_LEN], *ptr;
  int i;

  ptr = order;
  bzero (order, sizeof (order));

  while (n--)
    {
      if ((*list)[0] == '-')
        break;
      *(ptr++) = atoi (*list);
      list++;
    }


  yepp_putorder (order);

}












int
do_erase (char *which)
{
  int i;

  if (which && (which[0] == '-'))
    return 0;

  i = atoi (which);

  return yepp_erase (i);
}


int
do_download (char *which)
{
  int i;
  FILE *f;
  char *name;

  if (which && (which[0] == '-'))
    return 0;

  i = atoi (which);

  name = yepp_getnamebyindex (i);

  if (!name)
    {
      fprintf (stderr, "download: can't find index %d\n", i);
      return 0;
    }

  fprintf (stderr, "download: index %d is %s\n", i, name);

  f = fopen (name, "w");

  if (!f)
    {
      fprintf (stderr, "download: can't open %s\n", name);
      return 0;
    }


  i = yepp_get (i, f);


  fclose (f);

  return i;
}

int
do_upload (int where, char *fname, char *ftype)
{
  int type = YEPP_TYPE_MP3;
  FILE *f;

  if (fname && (fname[0] == '-'))
    fname = NULL;
  if (ftype && (ftype[0] == '-'))
    ftype = NULL;

  if (ftype)
    {
      do
        {
          if (!strcasecmp (ftype, "mp3"))
            {
              type = YEPP_TYPE_MP3;
              break;
            }
          if (!strcasecmp (ftype, "sc4"))
            {
              type = YEPP_TYPE_SC4;
              break;
            }
          if (!strcasecmp (ftype, "tel"))
            {
              type = YEPP_TYPE_TEL;
              break;
            }

          if (!strcasecmp (ftype, "data"))
            {
              type = YEPP_TYPE_DATA;
              break;
            }

          fprintf (stderr, "upload: Unknown file type \"%s\" assuming mp3\n",
                   ftype);

        }
      while (0);
    }

  f = fopen (fname, "r");

  if (!f)
    {
      fprintf (stderr, "upload: can't open \"%s\"\n", fname);
      return 0;
    }


  yepp_put (where, type, fname, f);

  fclose (f);

  return 1;
}

void
do_erase_all (void)
{
  struct yepp_dirent *yd, *ptr;
  int happy = 0;

  ptr = yd = yepp_dir ();

  if (!yd)
    return;

  while (ptr)
    {
      switch (ptr->index)
        {
        case YEPP_CONFIG_INDEX:
          if (!strcmp (ptr->name, "config.dat"))
            happy++;
          break;
        case YEPP_ENCODE_INDEX:
          if (!strcmp (ptr->name, "encode.mas"))
            happy++;
          break;
        case YEPP_DECODE_INDEX:
          if (!strcmp (ptr->name, "decode.mas"))
            happy++;
          break;
        case YEPP_SERIAL_INDEX:
          if (!strcmp (ptr->name, "serial.dat"))
            happy++;
          break;
        }

      ptr = ptr->next;
    }

  if (happy != 4)
    {
      fprintf (stderr, "do_erase_all: not happy - aborting\n");
      yepp_dir_free (yd);
      return;
    }


  ptr = yd;

  while (ptr)