1 // SPDX-License-Identifier: GPL-2.0
3  * ide-floppy IOCTLs handling.
15 #include "ide-floppy.h"
37 static int ide_floppy_get_format_capacities(ide_drive_t *drive,  in ide_floppy_get_format_capacities()  argument
41 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_get_format_capacities()
47 		return -EFAULT;  in ide_floppy_get_format_capacities()
50 		return -EINVAL;  in ide_floppy_get_format_capacities()
54 	if (ide_queue_pc_tail(drive, floppy->disk, pc, pc_buf, pc->req_xfer)) {  in ide_floppy_get_format_capacities()
55 		printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n");  in ide_floppy_get_format_capacities()
56 		return -EIO;  in ide_floppy_get_format_capacities()
74 			break;	/* User-supplied buffer too small */  in ide_floppy_get_format_capacities()
80 			return -EFAULT;  in ide_floppy_get_format_capacities()
85 			return -EFAULT;  in ide_floppy_get_format_capacities()
93 		return -EFAULT;  in ide_floppy_get_format_capacities()
103 	pc->c[0] = GPCMD_FORMAT_UNIT;  in ide_floppy_create_format_unit_cmd()
104 	pc->c[1] = 0x17;  in ide_floppy_create_format_unit_cmd()
116 	pc->req_xfer = 12;  in ide_floppy_create_format_unit_cmd()
117 	pc->flags |= PC_FLAG_WRITING;  in ide_floppy_create_format_unit_cmd()
120 static int ide_floppy_get_sfrp_bit(ide_drive_t *drive, struct ide_atapi_pc *pc)  in ide_floppy_get_sfrp_bit()  argument
122 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_get_sfrp_bit()
125 	drive->atapi_flags &= ~IDE_AFLAG_SRFP;  in ide_floppy_get_sfrp_bit()
128 	pc->flags |= PC_FLAG_SUPPRESS_ERROR;  in ide_floppy_get_sfrp_bit()
130 	if (ide_queue_pc_tail(drive, floppy->disk, pc, buf, pc->req_xfer))  in ide_floppy_get_sfrp_bit()
134 		drive->atapi_flags |= IDE_AFLAG_SRFP;  in ide_floppy_get_sfrp_bit()
139 static int ide_floppy_format_unit(ide_drive_t *drive, struct ide_atapi_pc *pc,  in ide_floppy_format_unit()  argument
142 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_format_unit()
146 	if (floppy->openers > 1) {  in ide_floppy_format_unit()
148 		drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;  in ide_floppy_format_unit()
149 		return -EBUSY;  in ide_floppy_format_unit()
152 	drive->dev_flags |= IDE_DFLAG_FORMAT_IN_PROGRESS;  in ide_floppy_format_unit()
155 	 * Send ATAPI_FORMAT_UNIT to the drive.  in ide_floppy_format_unit()
167 	 *        0x01 - verify media after format.  in ide_floppy_format_unit()
172 		err = -EFAULT;  in ide_floppy_format_unit()
176 	ide_floppy_get_sfrp_bit(drive, pc);  in ide_floppy_format_unit()
179 	if (ide_queue_pc_tail(drive, floppy->disk, pc, buf, pc->req_xfer))  in ide_floppy_format_unit()
180 		err = -EIO;  in ide_floppy_format_unit()
184 		drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS;  in ide_floppy_format_unit()
192  * indicator 0-65536, with 65536=100%.
194  * If the drive does not support format progress indication, we just check
198 static int ide_floppy_get_format_progress(ide_drive_t *drive,  in ide_floppy_get_format_progress()  argument
202 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_get_format_progress()
206 	if (drive->atapi_flags & IDE_AFLAG_SRFP) {  in ide_floppy_get_format_progress()
207 		ide_create_request_sense_cmd(drive, pc);  in ide_floppy_get_format_progress()
208 		if (ide_queue_pc_tail(drive, floppy->disk, pc, sense_buf,  in ide_floppy_get_format_progress()
209 				      pc->req_xfer))  in ide_floppy_get_format_progress()
210 			return -EIO;  in ide_floppy_get_format_progress()
212 		if (floppy->sense_key == 2 &&  in ide_floppy_get_format_progress()
213 		    floppy->asc == 4 &&  in ide_floppy_get_format_progress()
214 		    floppy->ascq == 4)  in ide_floppy_get_format_progress()
215 			progress_indication = floppy->progress_indication;  in ide_floppy_get_format_progress()
219 		ide_hwif_t *hwif = drive->hwif;  in ide_floppy_get_format_progress()
224 		stat = hwif->tp_ops->read_status(hwif);  in ide_floppy_get_format_progress()
231 		return -EFAULT;  in ide_floppy_get_format_progress()
236 static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc,  in ide_floppy_lockdoor()  argument
239 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_lockdoor()
240 	struct gendisk *disk = floppy->disk;  in ide_floppy_lockdoor()
243 	if (floppy->openers > 1)  in ide_floppy_lockdoor()
244 		return -EBUSY;  in ide_floppy_lockdoor()
246 	ide_set_media_lock(drive, disk, prevent);  in ide_floppy_lockdoor()
249 		ide_do_start_stop(drive, disk, 2);  in ide_floppy_lockdoor()
254 static int ide_floppy_format_ioctl(ide_drive_t *drive, struct ide_atapi_pc *pc,  in ide_floppy_format_ioctl()  argument
255 				   fmode_t mode, unsigned int cmd,  in ide_floppy_format_ioctl()  argument
262 		return ide_floppy_get_format_capacities(drive, pc, argp);  in ide_floppy_format_ioctl()
264 		if (!(mode & FMODE_WRITE))  in ide_floppy_format_ioctl()
265 			return -EPERM;  in ide_floppy_format_ioctl()
266 		return ide_floppy_format_unit(drive, pc, (int __user *)argp);  in ide_floppy_format_ioctl()
268 		return ide_floppy_get_format_progress(drive, pc, argp);  in ide_floppy_format_ioctl()
270 		return -ENOTTY;  in ide_floppy_format_ioctl()
274 int ide_floppy_ioctl(ide_drive_t *drive, struct block_device *bdev,  in ide_floppy_ioctl()  argument
275 		     fmode_t mode, unsigned int cmd, unsigned long arg)  in ide_floppy_ioctl()  argument
283 		err = ide_floppy_lockdoor(drive, &pc, arg, cmd);  in ide_floppy_ioctl()
287 	err = ide_floppy_format_ioctl(drive, &pc, mode, cmd, argp);  in ide_floppy_ioctl()
288 	if (err != -ENOTTY)  in ide_floppy_ioctl()
296 		err = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp);  in ide_floppy_ioctl()
298 	if (err == -ENOTTY)  in ide_floppy_ioctl()
299 		err = generic_ide_ioctl(drive, bdev, cmd, arg);  in ide_floppy_ioctl()