/* Attach routine */
static t_stat hdsk_attach(UNIT *uptr, char *cptr) {
int32 thisUnitIndex;
char unitChar;
const t_stat r = attach_unit(uptr, cptr); /* attach unit */
if (r != SCPE_OK) /* error? */
return r;
assert(uptr != NULL);
thisUnitIndex = find_unit_index(uptr);
unitChar = '0' + thisUnitIndex;
assert((0 <= thisUnitIndex) && (thisUnitIndex < HDSK_NUMBER));
if (is_imd(uptr)) {
if ((sim_fsize(uptr -> fileref) == 0) &&
(diskCreate(uptr -> fileref, "$Id: SIMH hdsk.c $") != SCPE_OK)) {
printf("HDSK%c (IMD): Failed to create IMD disk.\n", unitChar);
detach_unit(uptr);
return SCPE_OPENERR;
}
hdsk_imd[thisUnitIndex] = diskOpen(uptr -> fileref, sim_deb && (hdsk_dev.dctrl & VERBOSE_MSG));
if (hdsk_imd[thisUnitIndex] == NULL)
return SCPE_IOERR;
verifyDiskInfo(*hdsk_imd[thisUnitIndex], '0' + thisUnitIndex);
uptr -> HDSK_NUMBER_OF_TRACKS = hdsk_imd[thisUnitIndex] -> ntracks;
uptr -> HDSK_SECTORS_PER_TRACK = hdsk_imd[thisUnitIndex] -> track[1][0].nsects;
uptr -> HDSK_SECTOR_SIZE = hdsk_imd[thisUnitIndex] -> track[1][0].sectsize;
uptr -> capac = ((uptr -> HDSK_NUMBER_OF_TRACKS) *
(uptr -> HDSK_SECTORS_PER_TRACK) *
(uptr -> HDSK_SECTOR_SIZE));
assignFormat(uptr);
if (uptr -> HDSK_FORMAT_TYPE == -1) { /* Case 1: no disk parameter block found*/
uptr -> HDSK_FORMAT_TYPE = 0;
printf("HDSK%c (IMD): WARNING: Unsupported disk capacity, assuming HDSK type "
"with capacity %iKB.\n", unitChar, uptr -> capac / 1000);
uptr -> flags |= UNIT_HDSK_WLK;
printf("HDSK%c (IMD): WARNING: Forcing WRTLCK.\n", unitChar);
}
return SCPE_OK;
}
/* Step 1: Determine capacity of this disk */
uptr -> capac = sim_fsize(uptr -> fileref); /* the file length is a good indication */
if (uptr -> capac == 0) { /* file does not exist or has length 0 */
uptr -> capac = (uptr -> HDSK_NUMBER_OF_TRACKS *
uptr -> HDSK_SECTORS_PER_TRACK * uptr -> HDSK_SECTOR_SIZE);
if (uptr -> capac == 0)
uptr -> capac = HDSK_CAPACITY;
} /* post condition: uptr -> capac > 0 */
assert(uptr -> capac);
/* Step 2: Determine format based on disk capacity */
assignFormat(uptr);
/* Step 3: Set number of sectors per track and sector size */
if (uptr -> HDSK_FORMAT_TYPE == -1) { /* Case 1: no disk parameter block found */
uptr -> HDSK_FORMAT_TYPE = 0;
printf("HDSK%c: WARNING: Unsupported disk capacity, assuming HDSK type with capacity %iKB.\n",
unitChar, uptr -> capac / 1000);
uptr -> flags |= UNIT_HDSK_WLK;
printf("HDSK%c: WARNING: Forcing WRTLCK.\n", unitChar);
/* check whether capacity corresponds to setting of tracks, sectors per track and sector size */
if (uptr -> capac != (uint32)(uptr -> HDSK_NUMBER_OF_TRACKS *
uptr -> HDSK_SECTORS_PER_TRACK * uptr -> HDSK_SECTOR_SIZE)) {
printf("HDSK%c: WARNING: Fixing geometry.\n", unitChar);
if (uptr -> HDSK_SECTORS_PER_TRACK == 0)
uptr -> HDSK_SECTORS_PER_TRACK = 32;
if (uptr -> HDSK_SECTOR_SIZE == 0)
uptr -> HDSK_SECTOR_SIZE = 128;
}
}
else { /* Case 2: disk parameter block found */
uptr -> HDSK_SECTORS_PER_TRACK = dpb[uptr -> HDSK_FORMAT_TYPE].spt >> dpb[uptr -> HDSK_FORMAT_TYPE].psh;
uptr -> HDSK_SECTOR_SIZE = (128 << dpb[uptr -> HDSK_FORMAT_TYPE].psh);
}
assert((uptr -> HDSK_SECTORS_PER_TRACK) && (uptr -> HDSK_SECTOR_SIZE) && (uptr -> HDSK_FORMAT_TYPE >= 0));
/* Step 4: Number of tracks is smallest number to accomodate capacity */
uptr -> HDSK_NUMBER_OF_TRACKS = (uptr -> capac + uptr -> HDSK_SECTORS_PER_TRACK *
uptr -> HDSK_SECTOR_SIZE - 1) / (uptr -> HDSK_SECTORS_PER_TRACK * uptr -> HDSK_SECTOR_SIZE);
assert( ( (t_addr) ((uptr -> HDSK_NUMBER_OF_TRACKS - 1) * uptr -> HDSK_SECTORS_PER_TRACK *
uptr -> HDSK_SECTOR_SIZE) < uptr -> capac) &&
(uptr -> capac <= (t_addr) (uptr -> HDSK_NUMBER_OF_TRACKS *
uptr -> HDSK_SECTORS_PER_TRACK * uptr -> HDSK_SECTOR_SIZE) ) );
return SCPE_OK;
}
/* Attach routine */
t_stat i8272_attach(UNIT *uptr, char *cptr)
{
char header[4];
t_stat r;
int32 i = 0;
r = attach_unit(uptr, cptr); /* attach unit */
if ( r != SCPE_OK) /* error? */
return r;
/* Determine length of this disk */
uptr->capac = sim_fsize(uptr->fileref);
i = find_unit_index(uptr);
if (i == -1) {
return (SCPE_IERR);
}
DBG_PRINT(("Attach I8272%d\n", i));
i8272_info->drive[i].uptr = uptr;
/* Default to drive not ready */
i8272_info->drive[i].ready = 0;
if(uptr->capac > 0) {
char *rtn = fgets(header, 4, uptr->fileref);
if((rtn != NULL) && strncmp(header, "IMD", 3)) {
printf("I8272: Only IMD disk images are supported\n");
i8272_info->drive[i].uptr = NULL;
return SCPE_OPENERR;
}
} else {
/* create a disk image file in IMD format. */
if (diskCreate(uptr->fileref, "$Id: i8272.c 1999 2008-07-22 04:25:28Z hharte $") != SCPE_OK) {
printf("I8272: Failed to create IMD disk.\n");
i8272_info->drive[i].uptr = NULL;
return SCPE_OPENERR;
}
uptr->capac = sim_fsize(uptr->fileref);
}
uptr->u3 = IMAGE_TYPE_IMD;
if (uptr->flags & UNIT_I8272_VERBOSE) {
printf("I8272%d: attached to '%s', type=%s, len=%d\n", i, cptr,
uptr->u3 == IMAGE_TYPE_IMD ? "IMD" : uptr->u3 == IMAGE_TYPE_CPT ? "CPT" : "DSK",
uptr->capac);
}
if(uptr->u3 == IMAGE_TYPE_IMD) {
if (uptr->flags & UNIT_I8272_VERBOSE)
printf("--------------------------------------------------------\n");
i8272_info->drive[i].imd = diskOpen(uptr->fileref, uptr->flags & UNIT_I8272_VERBOSE);
if (uptr->flags & UNIT_I8272_VERBOSE)
printf("\n");
if (i8272_info->drive[i].imd == NULL) {
printf("I8272: IMD disk corrupt.\n");
i8272_info->drive[i].uptr = NULL;
return SCPE_OPENERR;
}
i8272_info->drive[i].ready = 1;
} else {
i8272_info->drive[i].imd = NULL;
}
return SCPE_OK;
}
/* Attach routine */
t_stat wd179x_attach(UNIT *uptr, char *cptr)
{
char header[4];
t_stat r;
int32 i = 0;
r = attach_unit(uptr, cptr); /* attach unit */
if ( r != SCPE_OK) /* error? */
return r;
/* Determine length of this disk */
uptr->capac = sim_fsize(uptr->fileref);
i = find_unit_index(uptr);
if (i == -1) {
return (SCPE_IERR);
}
DBG_PRINT(("Attach WD179X%d\n", i));
wd179x_info->drive[i].uptr = uptr;
/* Default to drive not ready */
wd179x_info->drive[i].ready = 0;
if(uptr->capac > 0) {
char *rtn = fgets(header, 4, uptr->fileref);
if ((rtn != NULL) && strncmp(header, "IMD", 3)) {
printf("WD179X: Only IMD disk images are supported\n");
wd179x_info->drive[i].uptr = NULL;
return SCPE_OPENERR;
}
} else {
/* create a disk image file in IMD format. */
if (diskCreate(uptr->fileref, "$Id: wd179x.c 1999 2008-07-22 04:25:28Z hharte $") != SCPE_OK) {
printf("WD179X: Failed to create IMD disk.\n");
wd179x_info->drive[i].uptr = NULL;
return SCPE_OPENERR;
}
uptr->capac = sim_fsize(uptr->fileref);
}
uptr->u3 = IMAGE_TYPE_IMD;
if (uptr->flags & UNIT_WD179X_VERBOSE)
printf("WD179X%d: attached to '%s', type=%s, len=%d\n", i, cptr,
uptr->u3 == IMAGE_TYPE_IMD ? "IMD" : uptr->u3 == IMAGE_TYPE_CPT ? "CPT" : "DSK",
uptr->capac);
if(uptr->u3 == IMAGE_TYPE_IMD) {
if (uptr->flags & UNIT_WD179X_VERBOSE)
printf("--------------------------------------------------------\n");
wd179x_info->drive[i].imd = diskOpen(uptr->fileref, uptr->flags & UNIT_WD179X_VERBOSE);
if (uptr->flags & UNIT_WD179X_VERBOSE)
printf("\n");
if (wd179x_info->drive[i].imd == NULL) {
printf("WD179X: IMD disk corrupt.\n");
wd179x_info->drive[i].uptr = NULL;
return SCPE_OPENERR;
}
/* Write-protect the unit if IMD think's it's writelocked. */
if(imdIsWriteLocked(wd179x_info->drive[i].imd)) {
uptr->flags |= UNIT_WD179X_WLK;
}
wd179x_info->drive[i].ready = 1;
} else {
wd179x_info->drive[i].imd = NULL;
}
wd179x_info->fdc_sec_len = 0; /* 128 byte sectors, fixme */
wd179x_info->sel_drive = 0;
return SCPE_OK;
}
