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/*
* generic MMC scan commands implementation ( C2 scan only )
*
* This file is part of the QPxTool project.
* Copyright (C) 2005 Gennady "ShultZ" Kozlov <qpxtool@mail.ru>
*
* 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.
* See the file "COPYING" for the exact licensing terms.
*/
#include <stdio.h>
#include <stdlib.h>
#include <qpx_transport.h>
#include <qpx_mmc.h>
#include "qscan_plugin.h"
//int scan_generic::cmd_cd_errc_block(cd_errc *data)
int scan_generic::c2calc(unsigned char* buf, unsigned int lba, unsigned char sects)
{
const unsigned int sect_data = 2352;
const unsigned int sect_err = 294;
const unsigned int sect_size = sect_data + sect_err;
unsigned int c2errs = 0;
unsigned int s, offs, i,ii, se;
for (s=0; s<sects; s++) {
se = 0;
offs = s*sect_size + sect_data;
/*
printf("\n\n** Sector %d error data:\n", lba+s);
for (i=0; i<sect_err; i++) {
if (!(i%16)) printf("\n");
printf(" %02X", buf[offs+i]);
}
printf("\n");
*/
for (i=0; i<sect_err; i++) {
for(ii=0; ii<8; ii++)
if ((buf[offs+i] >> ii) & 0x01 ) {
// if (!se) printf("C2 in sector %7d, first error in byte %4d ", lba+s, i*8+ii);
se++;
}
}
// if (se) printf(", %4d C2\n",se);
c2errs += se;
}
return c2errs;
}
int scan_generic::cmd_cd_errc_block(cd_errc *data)
{
int rsize=15;
data->bler = 0;
data->e11 = 0;
data->e21 = 0;
data->e31 = 0;
data->e12 = 0;
data->e22 = 0;
data->e32 = 0;
data->uncr=0;
// if (!lba) return -1;
for (int i=0; (i<5) && lba<dev->media.capacity; i++) {
if (lba + rsize > dev->media.capacity)
rsize = dev->media.capacity - lba;
// else
// rsize = 15;
if (read_cd(dev, dev->rd_buf, lba, rsize, 0xFA))
data->uncr++;
else
data->e22 += c2calc(dev->rd_buf, lba, rsize);
lba+=rsize;
}
// *lba =
return 0;
}
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