floperr_t basicdsk_construct(floppy_image *floppy, const struct basicdsk_geometry *geometry)
{
struct basicdsk_tag *tag;
struct FloppyCallbacks *format;
assert(geometry->heads);
assert(geometry->tracks);
assert(geometry->sectors);
tag = (struct basicdsk_tag *) floppy_create_tag(floppy, BASICDSK_TAG, sizeof(struct basicdsk_tag));
if (!tag)
return FLOPPY_ERROR_OUTOFMEMORY;
tag->geometry = *geometry;
/* set up format callbacks */
format = floppy_callbacks(floppy);
format->read_sector = basicdsk_read_sector;
format->write_sector = basicdsk_write_sector;
format->read_indexed_sector = basicdsk_read_indexed_sector;
format->write_indexed_sector = basicdsk_write_indexed_sector;
format->get_sector_length = basicdsk_get_sector_length;
format->get_heads_per_disk = basicdsk_get_heads_per_disk;
format->get_tracks_per_disk = basicdsk_get_tracks_per_disk;
format->get_indexed_sector_info = basicdsk_get_indexed_sector_info;
format->format_track = basicdsk_format_track;
return FLOPPY_ERROR_SUCCESS;
}
static FLOPPY_CONSTRUCT(oric_dsk_construct)
{
struct FloppyCallbacks *callbacks;
struct oricdsk_tag *tag;
UINT8 header[mfm_disk_header_size];
floppy_image_read(floppy, header, 0, mfm_disk_header_size);
tag = (struct oricdsk_tag *) floppy_create_tag(floppy, sizeof(struct oricdsk_tag));
if (!tag)
return FLOPPY_ERROR_OUTOFMEMORY;
tag->heads = pick_integer_le(header, 8, 4);
tag->tracks = pick_integer_le(header, 12, 4);
tag->geometry = pick_integer_le(header, 16, 4);
tag->tracksize = TRACK_SIZE_MFM;
memset(tag->sector_data,0,sizeof(tag->sector_data));
callbacks = floppy_callbacks(floppy);
callbacks->read_sector = oric_read_sector;
callbacks->write_sector = oric_write_sector;
callbacks->read_indexed_sector = oric_read_indexed_sector;
callbacks->write_indexed_sector = oric_write_indexed_sector;
callbacks->get_sector_length = oric_get_sector_length;
callbacks->get_heads_per_disk = oric_get_heads_per_disk;
callbacks->get_tracks_per_disk = oric_get_tracks_per_disk;
callbacks->get_indexed_sector_info = oric_get_indexed_sector_info;
return FLOPPY_ERROR_SUCCESS;
}
