59  * The following delay solves a problem with ATAPI Zip 100 drive where BSY bit
64 static int ide_floppy_callback(ide_drive_t *drive, int dsc)  in ide_floppy_callback()  argument
66 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_callback()
67 	struct ide_atapi_pc *pc = drive->pc;  in ide_floppy_callback()
73 	if (drive->failed_pc == pc)  in ide_floppy_callback()
74 		drive->failed_pc = NULL;  in ide_floppy_callback()
90 			if (drive->failed_pc)  in ide_floppy_callback()
92 					      drive->failed_pc->c[0]);  in ide_floppy_callback()
119 			floppy->drive->name, pc->c[0], floppy->sense_key,  in ide_floppy_report_error()
124 static ide_startstop_t ide_floppy_issue_pc(ide_drive_t *drive,  in ide_floppy_issue_pc()  argument
128 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_issue_pc()
130 	if (drive->failed_pc == NULL &&  in ide_floppy_issue_pc()
132 		drive->failed_pc = pc;  in ide_floppy_issue_pc()
135 	drive->pc = pc;  in ide_floppy_issue_pc()
138 		unsigned int done = blk_rq_bytes(drive->hwif->rq);  in ide_floppy_issue_pc()
146 		drive->failed_pc = NULL;  in ide_floppy_issue_pc()
147 		drive->pc_callback(drive, 0);  in ide_floppy_issue_pc()
148 		ide_complete_rq(drive, BLK_STS_IOERR, done);  in ide_floppy_issue_pc()
156 	return ide_issue_pc(drive, cmd);  in ide_floppy_issue_pc()
192 static void idefloppy_create_rw_cmd(ide_drive_t *drive,  in idefloppy_create_rw_cmd()  argument
196 	struct ide_disk_obj *floppy = drive->driver_data;  in idefloppy_create_rw_cmd()
230 static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,  in ide_floppy_do_request()  argument
233 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_do_request()
239 	if (drive->debug_mask & IDE_DBG_RQ)  in ide_floppy_do_request()
245 		if (drive->failed_pc) {  in ide_floppy_do_request()
246 			ide_floppy_report_error(floppy, drive->failed_pc);  in ide_floppy_do_request()
247 			drive->failed_pc = NULL;  in ide_floppy_do_request()
249 			printk(KERN_ERR PFX "%s: I/O error\n", drive->name);  in ide_floppy_do_request()
253 			ide_complete_rq(drive, BLK_STS_OK, blk_rq_bytes(rq));  in ide_floppy_do_request()
264 				drive->name);  in ide_floppy_do_request()
268 		idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block);  in ide_floppy_do_request()
287 	ide_prep_sense(drive, rq);  in ide_floppy_do_request()
298 		ide_map_sg(drive, &cmd);  in ide_floppy_do_request()
303 	return ide_floppy_issue_pc(drive, &cmd, pc);  in ide_floppy_do_request()
305 	drive->failed_pc = NULL;  in ide_floppy_do_request()
308 	ide_complete_rq(drive, BLK_STS_IOERR, blk_rq_bytes(rq));  in ide_floppy_do_request()
316 static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive,  in ide_floppy_get_flexible_disk_page()  argument
319 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_get_flexible_disk_page()
328 	if (ide_queue_pc_tail(drive, disk, pc, buf, pc->req_xfer)) {  in ide_floppy_get_flexible_disk_page()
334 		drive->dev_flags |= IDE_DFLAG_WP;  in ide_floppy_get_flexible_disk_page()
336 		drive->dev_flags &= ~IDE_DFLAG_WP;  in ide_floppy_get_flexible_disk_page()
338 	set_disk_ro(disk, !!(drive->dev_flags & IDE_DFLAG_WP));  in ide_floppy_get_flexible_disk_page()
354 				drive->name, capacity / 1024, cyls, heads,  in ide_floppy_get_flexible_disk_page()
358 	drive->bios_cyl = cyls;  in ide_floppy_get_flexible_disk_page()
359 	drive->bios_head = heads;  in ide_floppy_get_flexible_disk_page()
360 	drive->bios_sect = sectors;  in ide_floppy_get_flexible_disk_page()
365 			"bytes, but the drive only handles %d\n",  in ide_floppy_get_flexible_disk_page()
366 			drive->name, lba_capacity, capacity);  in ide_floppy_get_flexible_disk_page()
369 		drive->capacity64 = floppy->blocks * floppy->bs_factor;  in ide_floppy_get_flexible_disk_page()
376  * Determine if a media is present in the floppy drive, and if so, its LBA
379 static int ide_floppy_get_capacity(ide_drive_t *drive)  in ide_floppy_get_capacity()  argument
381 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_get_capacity()
390 	drive->bios_cyl = 0;  in ide_floppy_get_capacity()
391 	drive->bios_head = drive->bios_sect = 0;  in ide_floppy_get_capacity()
394 	drive->capacity64 = 0;  in ide_floppy_get_capacity()
397 	if (ide_queue_pc_tail(drive, disk, &pc, pc_buf, pc.req_xfer)) {  in ide_floppy_get_capacity()
423 		/* Clik! drive returns this instead of CAPACITY_CURRENT */  in ide_floppy_get_capacity()
425 			if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))  in ide_floppy_get_capacity()
427 				 * If it is not a clik drive, break out  in ide_floppy_get_capacity()
437 				       drive->name, blocks * length / 1024,  in ide_floppy_get_capacity()
443 				       " not supported\n", drive->name, length);  in ide_floppy_get_capacity()
452 					       drive->name);  in ide_floppy_get_capacity()
453 				drive->capacity64 =  in ide_floppy_get_capacity()
463 			printk(KERN_ERR PFX "%s: No disk in drive\n",  in ide_floppy_get_capacity()
464 			       drive->name);  in ide_floppy_get_capacity()
468 				"in drive\n", drive->name);  in ide_floppy_get_capacity()
476 	if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))  in ide_floppy_get_capacity()
477 		(void) ide_floppy_get_flexible_disk_page(drive, &pc);  in ide_floppy_get_capacity()
482 static void ide_floppy_setup(ide_drive_t *drive)  in ide_floppy_setup()  argument
484 	struct ide_disk_obj *floppy = drive->driver_data;  in ide_floppy_setup()
485 	u16 *id = drive->id;  in ide_floppy_setup()
487 	drive->pc_callback	 = ide_floppy_callback;  in ide_floppy_setup()
499 		drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE;  in ide_floppy_setup()
501 		drive->pc_delay = IDEFLOPPY_PC_DELAY;  in ide_floppy_setup()
502 		blk_queue_max_hw_sectors(drive->queue, 64);  in ide_floppy_setup()
506 	 * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes  in ide_floppy_setup()
510 		blk_queue_max_hw_sectors(drive->queue, 64);  in ide_floppy_setup()
511 		drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE;  in ide_floppy_setup()
513 		drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;  in ide_floppy_setup()
516 	(void) ide_floppy_get_capacity(drive);  in ide_floppy_setup()
518 	ide_proc_register_driver(drive, floppy->driver);  in ide_floppy_setup()
521 static void ide_floppy_flush(ide_drive_t *drive)  in ide_floppy_flush()  argument
525 static int ide_floppy_init_media(ide_drive_t *drive, struct gendisk *disk)  in ide_floppy_init_media()  argument
529 	if (ide_do_test_unit_ready(drive, disk))  in ide_floppy_init_media()
530 		ide_do_start_stop(drive, disk, 1);  in ide_floppy_init_media()
532 	ret = ide_floppy_get_capacity(drive);  in ide_floppy_init_media()
534 	set_capacity(disk, ide_gd_capacity(drive));  in ide_floppy_init_media()