1 // SPDX-License-Identifier: GPL-2.0-only
20 #include "ide-disk.h"
21 #include "ide-floppy.h"
41 		if (ide_device_get(idkp->drive))  in ide_disk_get()
44 			get_device(&idkp->dev);  in ide_disk_get()
52 	ide_drive_t *drive = idkp->drive;  in ide_disk_put()  local
55 	put_device(&idkp->dev);  in ide_disk_put()
56 	ide_device_put(drive);  in ide_disk_put()
60 sector_t ide_gd_capacity(ide_drive_t *drive)  in ide_gd_capacity()  argument
62 	return drive->capacity64;  in ide_gd_capacity()
67 static void ide_gd_remove(ide_drive_t *drive)  in ide_gd_remove()  argument
69 	struct ide_disk_obj *idkp = drive->driver_data;  in ide_gd_remove()
70 	struct gendisk *g = idkp->disk;  in ide_gd_remove()
72 	ide_proc_unregister_driver(drive, idkp->driver);  in ide_gd_remove()
73 	device_del(&idkp->dev);  in ide_gd_remove()
75 	drive->disk_ops->flush(drive);  in ide_gd_remove()
78 	put_device(&idkp->dev);  in ide_gd_remove()
85 	ide_drive_t *drive = idkp->drive;  in ide_disk_release()  local
86 	struct gendisk *g = idkp->disk;  in ide_disk_release()
88 	drive->disk_ops = NULL;  in ide_disk_release()
89 	drive->driver_data = NULL;  in ide_disk_release()
90 	g->private_data = NULL;  in ide_disk_release()
100 static void ide_gd_resume(ide_drive_t *drive)  in ide_gd_resume()  argument
102 	if (ata_id_hpa_enabled(drive->id))  in ide_gd_resume()
103 		(void)drive->disk_ops->get_capacity(drive);  in ide_gd_resume()
119 static void ide_gd_shutdown(ide_drive_t *drive)  argument
127 	   firmware doesn't handle disks in standby mode properly.
130 	   as the firmware initialization takes rather long time -
138 		drive->disk_ops->flush(drive);
142 	printk(KERN_INFO "Shutdown: %s\n", drive->name);
144 	drive->gendev.bus->suspend(&drive->gendev, PMSG_SUSPEND);
148 static ide_proc_entry_t *ide_disk_proc_entries(ide_drive_t *drive)  argument
150 	return (drive->media == ide_disk) ? ide_disk_proc : ide_floppy_proc;
153 static const struct ide_proc_devset *ide_disk_proc_devsets(ide_drive_t *drive)  argument
155 	return (drive->media == ide_disk) ? ide_disk_settings
160 static ide_startstop_t ide_gd_do_request(ide_drive_t *drive,  argument
163 	return drive->disk_ops->do_request(drive, rq, sector);
169 		.name		= "ide-gd",
184 static int ide_gd_open(struct block_device *bdev, fmode_t mode)  argument
186 	struct gendisk *disk = bdev->bd_disk;
188 	ide_drive_t *drive;  local
193 		return -ENXIO;
195 	drive = idkp->drive;
199 	idkp->openers++;
201 	if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1) {
202 		drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
205 		ret = drive->disk_ops->init_media(drive, disk);
208 		 * Allow O_NDELAY to open a drive without a disk, or with an
210 		 * of the drive or begin the format - Sam
212 		if (ret && (mode & FMODE_NDELAY) == 0) {
213 			ret = -EIO;
217 		if ((drive->dev_flags & IDE_DFLAG_WP) && (mode & FMODE_WRITE)) {
218 			ret = -EROFS;
227 		drive->disk_ops->set_doorlock(drive, disk, 1);
230 				bdev->bd_disk->disk_name);
231 		drive->disk_ops->get_capacity(drive);
232 		set_capacity(disk, ide_gd_capacity(drive));
233 		set_bit(GD_NEED_PART_SCAN, &disk->state);
234 	} else if (drive->dev_flags & IDE_DFLAG_FORMAT_IN_PROGRESS) {
235 		ret = -EBUSY;
241 	idkp->openers--;
246 static int ide_gd_unlocked_open(struct block_device *bdev, fmode_t mode)  argument
251 	ret = ide_gd_open(bdev, mode);
258 static void ide_gd_release(struct gendisk *disk, fmode_t mode)  argument
261 	ide_drive_t *drive = idkp->drive;  local
266 	if (idkp->openers == 1)
267 		drive->disk_ops->flush(drive);
269 	if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1) {
270 		drive->disk_ops->set_doorlock(drive, disk, 0);
271 		drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;
274 	idkp->openers--;
282 	struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
283 	ide_drive_t *drive = idkp->drive;  local
285 	geo->heads = drive->bios_head;
286 	geo->sectors = drive->bios_sect;
287 	geo->cylinders = (u16)drive->bios_cyl; /* truncate */
294 	ide_drive_t *drive = idkp->drive;  local
295 	const struct ide_disk_ops *disk_ops = drive->disk_ops;
297 	if (disk_ops->unlock_native_capacity)
298 		disk_ops->unlock_native_capacity(drive);
301 static int ide_gd_ioctl(struct block_device *bdev, fmode_t mode,  argument
304 	struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
305 	ide_drive_t *drive = idkp->drive;  local
307 	return drive->disk_ops->ioctl(drive, bdev, mode, cmd, arg);
311 static int ide_gd_compat_ioctl(struct block_device *bdev, fmode_t mode,  argument
314 	struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj);
315 	ide_drive_t *drive = idkp->drive;  local
317 	if (!drive->disk_ops->compat_ioctl)
318 		return -ENOIOCTLCMD;
320 	return drive->disk_ops->compat_ioctl(drive, bdev, mode, cmd, arg);
336 static int ide_gd_probe(ide_drive_t *drive)  argument
342 	/* strstr("foo", "") is non-NULL */
343 	if (!strstr("ide-gd", drive->driver_req))
347 	if (drive->media == ide_disk)
351 	if (drive->media == ide_floppy)
357 	if (disk_ops->check(drive, DRV_NAME) == 0) {
359 			drive->name);
366 			drive->name);
370 	g = alloc_disk_node(IDE_DISK_MINORS, hwif_to_node(drive->hwif));
374 	ide_init_disk(g, drive);
376 	idkp->dev.parent = &drive->gendev;
377 	idkp->dev.release = ide_disk_release;
378 	dev_set_name(&idkp->dev, "%s", dev_name(&drive->gendev));
380 	if (device_register(&idkp->dev))
383 	idkp->drive = drive;
384 	idkp->driver = &ide_gd_driver;
385 	idkp->disk = g;
387 	g->private_data = &idkp->driver;
389 	drive->driver_data = idkp;
390 	drive->debug_mask = debug_mask;
391 	drive->disk_ops = disk_ops;
393 	disk_ops->setup(drive);
395 	set_capacity(g, ide_gd_capacity(drive));
397 	g->minors = IDE_DISK_MINORS;
398 	g->flags |= GENHD_FL_EXT_DEVT;
399 	if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
400 		g->flags = GENHD_FL_REMOVABLE;
401 	g->fops = &ide_gd_ops;
402 	g->events = DISK_EVENT_MEDIA_CHANGE;
403 	device_add_disk(&drive->gendev, g, NULL);
411 	return -ENODEV;
425 MODULE_ALIAS("ide:*m-disk*");
426 MODULE_ALIAS("ide-disk");
427 MODULE_ALIAS("ide:*m-floppy*");
428 MODULE_ALIAS("ide-floppy");