int main(int argc, char *argv[])
{
struct driveinfo drive;
struct driveinfo *d = &drive;
(void)argc;
(void)argv;
openconsole(&dev_null_r, &dev_stdcon_w);
for (int disk = 0x80; disk < 0xff; disk++) {
memset(d, 0, sizeof(struct driveinfo));
d->disk = disk;
get_drive_parameters(d);
/* Do not print output when drive does not exists */
if (errno_disk == -1 || !d->cbios)
continue;
if (errno_disk) {
get_error("reading disk");
continue;
}
printf("DISK 0x%X:\n", d->disk);
printf(" C/H/S: %d heads, %d cylinders\n",
d->legacy_max_head + 1, d->legacy_max_cylinder + 1);
printf(" %d sectors/track, %d drives\n",
d->legacy_sectors_per_track, d->legacy_max_drive);
printf(" EDD: ebios=%d, EDD version: %X\n",
d->ebios, d->edd_version);
printf(" %d heads, %d cylinders\n",
(int) d->edd_params.heads, (int) d->edd_params.cylinders);
printf(" %d sectors, %d bytes/sector, %d sectors/track\n",
(int) d->edd_params.sectors, (int) d->edd_params.bytes_per_sector,
(int) d->edd_params.sectors_per_track);
printf(" Host bus: %s, Interface type: %s\n\n",
d->edd_params.host_bus_type, d->edd_params.interface_type);
}
return 0;
}
/**
* read_sectors - read several sectors from disk
* @drive_info: driveinfo struct describing the disk
* @data: Pre-allocated buffer for output
* @lba: Position to read
* @sectors: Number of sectors to read
*
* Return the number of sectors read on success or -1 on failure.
* errno_disk contains the error number.
**/
int read_sectors(struct driveinfo *drive_info, void *data,
const unsigned int lba, const int sectors)
{
com32sys_t inreg, outreg;
struct ebios_dapa *dapa = __com32.cs_bounce;
void *buf = (char *)__com32.cs_bounce + sectors * SECTOR;
char *bufp = data;
if (get_drive_parameters(drive_info) == -1)
return -1;
memset(&inreg, 0, sizeof inreg);
if (drive_info->ebios) {
dapa->len = sizeof(*dapa);
dapa->count = sectors;
dapa->off = OFFS(buf);
dapa->seg = SEG(buf);
dapa->lba = lba;
inreg.esi.w[0] = OFFS(dapa);
inreg.ds = SEG(dapa);
inreg.edx.b[0] = drive_info->disk;
inreg.eax.b[1] = 0x42; /* Extended read */
} else {
unsigned int c, h, s;
if (!drive_info->cbios) { // XXX errno
/* We failed to get the geometry */
if (lba)
return -1; /* Can only read MBR */
s = 1;
h = 0;
c = 0;
} else
lba_to_chs(drive_info, lba, &s, &h, &c);
// XXX errno
if (s > 63 || h > 256 || c > 1023)
return -1;
inreg.eax.w[0] = 0x0201; /* Read one sector */
inreg.ecx.b[1] = c & 0xff;
inreg.ecx.b[0] = s + (c >> 6);
inreg.edx.b[1] = h;
inreg.edx.b[0] = drive_info->disk;
inreg.ebx.w[0] = OFFS(buf);
inreg.es = SEG(buf);
}
/* Perform the read */
if (int13_retry(&inreg, &outreg)) {
errno_disk = outreg.eax.b[1];
return -1; /* Give up */
}
memcpy(bufp, buf, sectors * SECTOR);
return sectors;
}
int main(int argc, char *argv[])
{
struct driveinfo drive;
struct driveinfo *d = &drive;
char buffer[4096] = {0};
unsigned int index = 0;
int ret, progress, progress_old;
int rows, cols;
(void)argc;
(void)argv;
openconsole(&dev_stdcon_r, &dev_stdcon_w);
if (getscreensize(1, &rows, &cols)) {
/* Unknown screen size? */
rows = 24;
cols = 80;
}
memset(buffer, 'A', 4096);
memcpy(buffer, boot_code, sizeof(boot_code));
buffer[510] = 0x55;
buffer[511] = 0xaa;
printf("DWIPE version %s, by sTeeL <*****@*****.**>\n", __DWIPE_VERSION__);
printf("remove USB DISK and hit ENTER key\n");
get_key(stdin, 0);
for (int disk = 0x80; disk < 0xff; disk++) {
memset(d, 0, sizeof(struct driveinfo));
d->disk = disk;
get_drive_parameters(d);
/* Do not print output when drive does not exists */
if (errno_disk == -1 || !d->cbios)
continue;
if (errno_disk) {
get_error("reading disk");
continue;
}
printf("DISK 0x%X:\n", d->disk);
printf(" C/H/S: %d heads, %d cylinders\n",
d->legacy_max_head + 1, d->legacy_max_cylinder + 1);
printf(" %d sectors/track, %d drives\n",
d->legacy_sectors_per_track, d->legacy_max_drive);
printf(" EDD: ebios=%d, EDD version: %X\n",
d->ebios, d->edd_version);
printf(" %d heads, %d cylinders\n",
(int) d->edd_params.heads, (int) d->edd_params.cylinders);
printf(" %d sectors, %d bytes/sector, %d sectors/track\n",
(int) d->edd_params.sectors, (int) d->edd_params.bytes_per_sector,
(int) d->edd_params.sectors_per_track);
printf(" Host bus: %s, Interface type: %s\n\n",
d->edd_params.host_bus_type, d->edd_params.interface_type);
progress_old = 0;
print_progress(0, cols);
for(index = 0; index < d->edd_params.sectors ; index += 8 ) {
ret = dwipe_write_sectors(d, index, buffer, 8);
if(ret == -1) {
printf("ERROR!\n");
continue;
} else {
progress = index * 100 / d->edd_params.sectors;
if(progress != progress_old) {
progress_old = progress;
print_progress(progress, cols);
}
}
}
print_progress(100, cols);
printf("\nDONE\n\n");
}
syslinux_reboot(0);
return 0;
}
