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/*

 * Copyright (c) 1998,1999,2000 Ralf Corsepius (corsepiu@faw.uni-ulm.de)

 *

 * See the file COPYING for copyright notice.

 */

#include <stdio.h>

#include <string.h>     /* strcmp, strerror */

#include <errno.h>

#include <getopt.h>

#include "sci.h"

static void usage( FILE* ofile, char *prog )

{

  fprintf( ofile, "Usage: %s [options] driver\n", prog );

  fprintf( ofile, "\nOptions:\n" );

  fprintf( ofile, "Processor frequency (default 20MHz):\n") ;

  fprintf( ofile, "\t-M Phi      .. processor frequency [MHz]\n" );

  fprintf( ofile, "\t-K Phi      .. processor frequency [KHz]\n" );

  fprintf( ofile, "\t-H Phi      .. processor frequency [Hz]\n" );

  fprintf( ofile, "Driver:\n" );

  fprintf( ofile, "\tsci         .. bitrate table for sci\n" );

  fprintf( ofile, "\nWritten by Ralf Corsepius <corsepiu@faw.uni-ulm.de>\n" );

  fprintf( ofile, "\nCopyright (c) 1998,1999,2000\tRalf Corsepius\n" );

}

#if HAVE_GETOPT_LONG

#define NOARG   0

#define HASARG  1

#define OPTARG  2

static struct option long_options[] =

{

  { "version",          NOARG,  NULL, 'v' },

  { "help",             NOARG,  NULL, 'h' },

  { "mega-hertz",       HASARG, NULL, 'M' },

  { "kilo-hertz",       HASARG, NULL, 'K' },

  { "hertz",            HASARG, NULL, 'H' },

  { 0, 0, 0, 0 }

};

#endif

static void shgen_header( FILE *file )

{

  fprintf( file,

    "/*\n * DO NOT EDIT - this file is automatically generated by shgen %s\n",

    VERSION );

  fprintf( file,

    " * Copyright (c) 1998,1999,2000 Ralf Corsepius (corsepiu@faw.uni-ulm.de)\n */\n" );

  fprintf( file,

    "\n/* This file is not copyrighted */\n\n" );

}

int main( int argc, char *argv[] )

{

  double        Phi = 20.0 ;

#if HAVE_GETOPT_LONG  

  int option_index = 0 ;

  while( ( optopt = getopt_long( argc, argv, "M:K:H:hv",

      long_options, &option_index ) ) > 0 )

#else

  while ( ( optopt = getopt( argc, argv, "M:K:H:hv" ) ) > 0 )

#endif

  {

    switch ( optopt )

    {

    case 'M' :

      sscanf( optarg, "%lf", &Phi );

      Phi = Phi * 1000000.0;

      break ;

    case 'K' :

      sscanf( optarg, "%lf", &Phi );

      Phi = Phi * 1000.0;

      break ;

    case 'H' :

      sscanf( optarg, "%lf", &Phi );

      break ;

    case 'h' :

      usage( stdout, argv[0] );

      exit(0);

    case 'v' :

      fprintf( stdout, "%s version %s\n", argv[0], VERSION );

      exit(0);

    default  :

      usage( stderr, argv[0] );

      exit(1);

      break ;

    }

  }

  if ( argc - optind != 1 )

  {

    fprintf( stderr, "%s: Missing argument: driver\n", argv[0] );

    exit(1);

  }

  shgen_header( stdout );

  if ( strcmp( argv[optind], "sci" ) == 0 )

  {

    shgen_gensci( stdout, Phi );

  }

  else

  {

    fprintf( stderr, "%s: Invalid argument: driver\n", argv[0] );

    exit(1);

  }

  return 0 ;

}