179 lines
4.4 KiB
C
179 lines
4.4 KiB
C
/*
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snesram.c - Snesram support for uCON64
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Copyright (c) 2009 david@optixx.org
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <string.h>
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#include "misc/misc.h"
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#include "misc/itypes.h"
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#ifdef USE_ZLIB
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#include "misc/archive.h"
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#endif
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#include "misc/getopt2.h" // st_getopt2_t
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#include "misc/file.h"
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#include "ucon64.h"
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#include "ucon64_misc.h"
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#include "ffe.h"
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#include "smc.h"
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#include "snesram.h"
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const st_getopt2_t snesram_usage[] =
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{
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{
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NULL, 0, 0, 0,
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NULL, "Snesram"/* http://www.optixx.org */,
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NULL
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},
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#ifdef USE_USB
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{
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"xsnesram", 0, 0, UCON64_XSNESRAM, // send only
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NULL, "send ROM (in FFE format) to Snesram; " OPTION_LONG_S "port=PORT",
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&ucon64_wf[WF_OBJ_NES_DEFAULT_STOP_NO_SPLIT]
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},
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#endif
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{NULL, 0, 0, 0, NULL, NULL, NULL}
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};
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#ifdef USE_USB
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#define BUFFERSIZE 8192
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int
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snesram_write_rom (const char *filename)
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{
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FILE *file;
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unsigned char *buffer;
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int bytesread, bytessend, size, offset, n_blocks1, n_blocks2, n_blocks3, n;
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time_t starttime;
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if ((file = fopen (filename, "rb")) == NULL)
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{
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fprintf (stderr, ucon64_msg[OPEN_READ_ERROR], filename);
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exit (1);
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}
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if ((buffer = (unsigned char *) malloc (BUFFERSIZE)) == NULL)
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{
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fprintf (stderr, ucon64_msg[FILE_BUFFER_ERROR], BUFFERSIZE);
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exit (1);
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}
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fread (buffer, 1, SMC_HEADER_LEN, file);
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size = (n_blocks1 + n_blocks2 + n_blocks3) * 8 * 1024 + 8 +
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(buffer[0] & SMC_TRAINER ? 512 : 0);
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printf ("Send: %d Bytes (%.4f Mb)\n", size, (float) size / MBIT);
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ffe_send_block (0x5020, buffer, 8); // send "file control block"
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bytessend = 8;
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if (buffer[1] >> 5 > 4)
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offset = 12;
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else
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offset = 0;
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if (buffer[0] & SMC_TRAINER) // send trainer if present
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{
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fread (buffer, 1, 512, file);
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ffe_send_block (0x600, buffer, 512);
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bytessend += 512;
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}
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printf ("Press q to abort\n\n");
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starttime = time (NULL);
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for (n = 0; n < n_blocks1; n++)
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{
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ffe_send_command0 (0x4507, (unsigned char) (n + offset));
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if ((bytesread = fread (buffer, 1, BUFFERSIZE, file)) == 0)
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break;
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ffe_send_block (0x6000, buffer, bytesread);
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bytessend += bytesread;
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ucon64_gauge (starttime, bytessend, size);
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ffe_checkabort (2);
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}
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for (n = 0; n < n_blocks2; n++)
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{
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ffe_send_command0 (0x4507, (unsigned char) (n + 32));
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if ((bytesread = fread (buffer, 1, BUFFERSIZE, file)) == 0)
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break;
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ffe_send_block (0x6000, buffer, bytesread);
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bytessend += bytesread;
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ucon64_gauge (starttime, bytessend, size);
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ffe_checkabort (2);
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}
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ffe_send_command0 (0x2001, 0);
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for (n = 0; n < n_blocks3; n++)
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{
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if (n == 0)
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{
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ffe_send_command0 (0x4500, 0x22);
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ffe_send_command0 (0x42ff, 0x30);
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if ((bytesread = fread (buffer, 1, BUFFERSIZE, file)) == 0)
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break;
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ffe_send_block (0x6000, buffer, bytesread);
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}
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else
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{
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int m;
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ffe_send_command0 (0x4500, 7);
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for (m = 0; m < 8; m++)
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ffe_send_command0 ((unsigned short) (0x4510 + m), (unsigned char) (n * 8 + m));
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if ((bytesread = fread (buffer, 1, BUFFERSIZE, file)) == 0)
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break;
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ffe_send_block2 (0, buffer, bytesread);
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}
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bytessend += bytesread;
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ucon64_gauge (starttime, bytessend, size);
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ffe_checkabort (2);
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}
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for (n = 0x4504; n < 0x4508; n++)
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ffe_send_command0 ((unsigned short) n, 0);
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for (n = 0x4510; n < 0x451c; n++)
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ffe_send_command0 ((unsigned short) n, 0);
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ffe_send_command (5, 1, 0);
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free (buffer);
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fclose (file);
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ffe_deinit_io ();
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return 0;
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}
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#endif // USE_USB
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