-
-static void ide_floppy_remove(ide_drive_t *drive)
-{
- idefloppy_floppy_t *floppy = drive->driver_data;
- struct gendisk *g = floppy->disk;
-
- ide_proc_unregister_driver(drive, floppy->driver);
-
- del_gendisk(g);
-
- ide_floppy_put(floppy);
-}
-
-static void idefloppy_cleanup_obj(struct kref *kref)
-{
- struct ide_floppy_obj *floppy = to_ide_drv(kref, ide_floppy_obj);
- ide_drive_t *drive = floppy->drive;
- struct gendisk *g = floppy->disk;
-
- drive->driver_data = NULL;
- g->private_data = NULL;
- put_disk(g);
- kfree(floppy);
-}
-
-static int ide_floppy_probe(ide_drive_t *);
-
-static ide_driver_t idefloppy_driver = {
- .gen_driver = {
- .owner = THIS_MODULE,
- .name = "ide-floppy",
- .bus = &ide_bus_type,
- },
- .probe = ide_floppy_probe,
- .remove = ide_floppy_remove,
- .version = IDEFLOPPY_VERSION,
- .do_request = idefloppy_do_request,
- .end_request = idefloppy_end_request,
- .error = __ide_error,
-#ifdef CONFIG_IDE_PROC_FS
- .proc = ide_floppy_proc,
- .settings = ide_floppy_settings,
-#endif
-};
-
-static int idefloppy_open(struct inode *inode, struct file *filp)
-{
- struct gendisk *disk = inode->i_bdev->bd_disk;
- struct ide_floppy_obj *floppy;
- ide_drive_t *drive;
- int ret = 0;
-
- floppy = ide_floppy_get(disk);
- if (!floppy)
- return -ENXIO;
-
- drive = floppy->drive;
-
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
-
- floppy->openers++;
-
- if (floppy->openers == 1) {
- drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
- /* Just in case */
-
- if (ide_do_test_unit_ready(drive, disk))
- ide_do_start_stop(drive, disk, 1);
-
- ret = ide_floppy_get_capacity(drive);
-
- set_capacity(disk, ide_floppy_capacity(drive));
-
- if (ret && (filp->f_flags & O_NDELAY) == 0) {
- /*
- * Allow O_NDELAY to open a drive without a disk, or with an
- * unreadable disk, so that we can get the format capacity
- * of the drive or begin the format - Sam
- */
- ret = -EIO;
- goto out_put_floppy;
- }
-
- if ((drive->dev_flags & IDE_DFLAG_WP) && (filp->f_mode & 2)) {
- ret = -EROFS;
- goto out_put_floppy;
- }
-
- ide_set_media_lock(drive, disk, 1);
- drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
- check_disk_change(inode->i_bdev);
- } else if (drive->dev_flags & IDE_DFLAG_FORMAT_IN_PROGRESS) {
- ret = -EBUSY;
- goto out_put_floppy;
- }
- return 0;
-
-out_put_floppy:
- floppy->openers--;
- ide_floppy_put(floppy);
- return ret;
-}
-
-static int idefloppy_release(struct inode *inode, struct file *filp)
-{
- struct gendisk *disk = inode->i_bdev->bd_disk;
- struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
- ide_drive_t *drive = floppy->drive;
-
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
-
- if (floppy->openers == 1) {
- ide_set_media_lock(drive, disk, 0);
- drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
- }
-
- floppy->openers--;
-
- ide_floppy_put(floppy);
-
- return 0;
-}
-
-static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
- struct ide_floppy_obj *floppy = ide_drv_g(bdev->bd_disk,
- ide_floppy_obj);
- ide_drive_t *drive = floppy->drive;
-
- geo->heads = drive->bios_head;
- geo->sectors = drive->bios_sect;
- geo->cylinders = (u16)drive->bios_cyl; /* truncate */
- return 0;
-}
-
-static int idefloppy_media_changed(struct gendisk *disk)
-{
- struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
- ide_drive_t *drive = floppy->drive;
- int ret;
-
- /* do not scan partitions twice if this is a removable device */
- if (drive->dev_flags & IDE_DFLAG_ATTACH) {
- drive->dev_flags &= ~IDE_DFLAG_ATTACH;
- return 0;
- }
- ret = !!(drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED);
- drive->dev_flags &= ~IDE_DFLAG_MEDIA_CHANGED;
- return ret;
-}
-
-static int idefloppy_revalidate_disk(struct gendisk *disk)
-{
- struct ide_floppy_obj *floppy = ide_drv_g(disk, ide_floppy_obj);
- set_capacity(disk, ide_floppy_capacity(floppy->drive));
- return 0;
-}
-
-static struct block_device_operations idefloppy_ops = {
- .owner = THIS_MODULE,
- .open = idefloppy_open,
- .release = idefloppy_release,
- .ioctl = ide_floppy_ioctl,
- .getgeo = idefloppy_getgeo,
- .media_changed = idefloppy_media_changed,
- .revalidate_disk = idefloppy_revalidate_disk
-};
-
-static int ide_floppy_probe(ide_drive_t *drive)
-{
- idefloppy_floppy_t *floppy;
- struct gendisk *g;
-
- if (!strstr("ide-floppy", drive->driver_req))
- goto failed;
-
- if (drive->media != ide_floppy)
- goto failed;
-
- if (!ide_check_atapi_device(drive, DRV_NAME)) {
- printk(KERN_ERR PFX "%s: not supported by this version of "
- DRV_NAME "\n", drive->name);
- goto failed;
- }
- floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL);
- if (!floppy) {
- printk(KERN_ERR PFX "%s: Can't allocate a floppy structure\n",
- drive->name);
- goto failed;
- }
-
- g = alloc_disk_node(1 << PARTN_BITS, hwif_to_node(drive->hwif));
- if (!g)
- goto out_free_floppy;
-
- ide_init_disk(g, drive);
-
- kref_init(&floppy->kref);
-
- floppy->drive = drive;
- floppy->driver = &idefloppy_driver;
- floppy->disk = g;
-
- g->private_data = &floppy->driver;
-
- drive->driver_data = floppy;
-
- drive->debug_mask = debug_mask;
-
- idefloppy_setup(drive);
-
- set_capacity(g, ide_floppy_capacity(drive));
-
- g->minors = 1 << PARTN_BITS;
- g->driverfs_dev = &drive->gendev;
- if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
- g->flags = GENHD_FL_REMOVABLE;
- g->fops = &idefloppy_ops;
- add_disk(g);
- return 0;
-
-out_free_floppy:
- kfree(floppy);
-failed:
- return -ENODEV;
-}
-
-static void __exit idefloppy_exit(void)
-{
- driver_unregister(&idefloppy_driver.gen_driver);
-}
-
-static int __init idefloppy_init(void)
-{
- printk(KERN_INFO DRV_NAME " driver " IDEFLOPPY_VERSION "\n");
- return driver_register(&idefloppy_driver.gen_driver);
-}
-
-MODULE_ALIAS("ide:*m-floppy*");
-MODULE_ALIAS("ide-floppy");
-module_init(idefloppy_init);
-module_exit(idefloppy_exit);
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("ATAPI FLOPPY Driver");
-