145 lines
3.6 KiB
C
145 lines
3.6 KiB
C
/*
|
|
mcd.c - Mike Pavone's Genesis/Sega CD transfer cable support for uCON64
|
|
|
|
Copyright (c) 2004 dbjh
|
|
|
|
|
|
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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
#include "misc/misc.h"
|
|
#include "misc/parallel.h"
|
|
#include "misc/itypes.h"
|
|
#ifdef USE_ZLIB
|
|
#include "misc/archive.h"
|
|
#endif
|
|
#include "misc/getopt2.h" // st_getopt2_t
|
|
#include "ucon64.h"
|
|
#include "ucon64_misc.h"
|
|
#include "mcd.h"
|
|
|
|
|
|
const st_getopt2_t mcd_usage[] =
|
|
{
|
|
{
|
|
NULL, 0, 0, 0,
|
|
NULL, "Mike Pavone's Genesis/Sega CD transfer cable",
|
|
NULL
|
|
},
|
|
#ifdef USE_PARALLEL
|
|
{
|
|
"xmcd", 0, 0, UCON64_XMCD,
|
|
NULL, "receive ROM from Genesis/Sega CD; " OPTION_LONG_S "port=PORT",
|
|
&ucon64_wf[WF_OBJ_GEN_DEFAULT_STOP_NO_SPLIT_NO_ROM]
|
|
},
|
|
#endif
|
|
{NULL, 0, 0, 0, NULL, NULL, NULL}
|
|
};
|
|
|
|
|
|
#ifdef USE_PARALLEL
|
|
|
|
#define BUFFERSIZE 8192
|
|
|
|
|
|
static void
|
|
checkabort (int status)
|
|
{
|
|
if (((!ucon64.frontend) ? kbhit () : 0) && getch () == 'q')
|
|
{
|
|
puts ("\nProgram aborted");
|
|
exit (status);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
read_block (unsigned char *buffer, int size, unsigned short parport)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < size; i++)
|
|
{
|
|
while (inportb ((unsigned short) (parport + PARPORT_STATUS)) & 0x08)
|
|
;
|
|
outportb ((unsigned short) (parport + PARPORT_CONTROL), 0xa2);
|
|
|
|
while (!(inportb ((unsigned short) (parport + PARPORT_STATUS)) & 0x08))
|
|
;
|
|
buffer[i] = inportb ((unsigned short) (parport + PARPORT_DATA)) & 0x0f;
|
|
outportb ((unsigned short) (parport + PARPORT_CONTROL), 0xa0);
|
|
|
|
while (inportb ((unsigned short) (parport + PARPORT_STATUS)) & 0x08)
|
|
;
|
|
outportb ((unsigned short) (parport + PARPORT_CONTROL), 0xa2);
|
|
|
|
while (!(inportb ((unsigned short) (parport + PARPORT_STATUS)) & 0x08))
|
|
;
|
|
buffer[i] |=
|
|
(inportb ((unsigned short) (parport + PARPORT_DATA)) & 0x0f) << 4;
|
|
outportb ((unsigned short) (parport + PARPORT_CONTROL), 0xa0);
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
mcd_read_rom (const char *filename, unsigned int parport)
|
|
{
|
|
FILE *file;
|
|
unsigned char buffer[BUFFERSIZE];
|
|
int n_bytes = 0, size;
|
|
time_t starttime;
|
|
|
|
#if (defined __unix__ || defined __BEOS__) && !defined __MSDOS__
|
|
init_conio ();
|
|
#endif
|
|
parport_print_info ();
|
|
|
|
if ((file = fopen (filename, "wb")) == NULL)
|
|
{
|
|
fprintf (stderr, ucon64_msg[OPEN_WRITE_ERROR], filename);
|
|
exit (1);
|
|
}
|
|
|
|
read_block (buffer, 1, (unsigned short) parport);
|
|
size = (buffer[0] + 1) * 64 * 1024;
|
|
printf ("Receive: %d Bytes (%.4f Mb)\n\n", size, (float) size / MBIT);
|
|
puts ("Press q to abort\n");
|
|
|
|
starttime = time (NULL);
|
|
while (n_bytes < size)
|
|
{
|
|
read_block (buffer, BUFFERSIZE, (unsigned short) parport);
|
|
fwrite (buffer, 1, BUFFERSIZE, file);
|
|
n_bytes += BUFFERSIZE;
|
|
ucon64_gauge (starttime, n_bytes, size);
|
|
checkabort (2);
|
|
}
|
|
|
|
fclose (file);
|
|
#if (defined __unix__ || defined __BEOS__) && !defined __MSDOS__
|
|
deinit_conio ();
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif // USE_PARALLEL
|