12  *   - Disk change detection and drive deselecting after motor-off
15  *     don't have an HD drive :-(
20  *   - Removed drive type (unknown on atari)
43  *  - Let user set max. supported drive type (speeds up format
177 	{ "D360",  9, 720, 0, 1},	/*  1: 360kb in 720k or 1.2MB drive */
178 	{ "D720",  9,1440, 0, 0},	/*  2: 720kb in 720k or 1.2MB drive */
275  * MSch: User-provided type information. 'drive' points to
281  * User-provided permanent type information. 'drive' points to
290 	int connected;				/* !=0 : drive is connected */
309 #define	UD	unit[drive]
310 #define	UDT	unit[drive].disktype
367 #define	IS_BUFFERED(drive,side,track) \  argument
368     (BufferDrive == (drive) && BufferSide == (side) && BufferTrack == (track))
395 #define RECALIBRATE_ERRORS	4	/* After this many errors the drive
423 static void fd_select_drive( int drive );
429 static int do_format(int drive, int type, struct atari_format_descr *desc);
430 static void do_fd_action( int drive );
444 static void setup_req_params( int drive );
447 static void fd_probe( int drive );
448 static int fd_test_drive_present( int drive );
517 /* Select a drive, update the FDC's track register and set the correct
521 static void fd_select_drive( int drive )  in fd_select_drive()  argument
526 	if (drive == SelectedDrive)  in fd_select_drive()
533 	sound_ym.wd_data = (tmp | DSKDRVNONE) & ~(drive == 0 ? DSKDRV0 : DSKDRV1);  in fd_select_drive()
546 	SelectedDrive = drive;  in fd_select_drive()
562 	/* On Falcon, the drive B select line is used on the printer port, so  in fd_deselect()
571  * counts the index signals, which arrive only if one drive is selected.
579 		/* no drive selected, needn't deselect anyone */  in fd_motor_off_timer()
597 	 * in the drive and the FDC will leave the motor on forever (or,  in fd_motor_off_timer()
612 	static int    drive = 0;  in check_change()  local
618 	if (++drive > 1 || !UD.connected)  in check_change()
619 		drive = 0;  in check_change()
628 			               ~(drive == 0 ? DSKDRV0 : DSKDRV1);  in check_change()
633 			DPRINT(( "wpstat[%d] = %d\n", drive, stat ));  in check_change()
635 			set_bit (drive, &changed_floppies);  in check_change()
743 static int do_format(int drive, int type, struct atari_format_descr *desc)  in do_format()  argument
760 	q = unit[drive].disk[type]->queue;  in do_format()
812 	do_fd_action( drive );  in do_format()
826  * required parameter settings (drive select, side select, track
834 static void do_fd_action( int drive )  in do_fd_action()  argument
840 	    if (IS_BUFFERED( drive, ReqSide, ReqTrack )) {  in do_fd_action()
845 			setup_req_params( drive );  in do_fd_action()
863 	if (SelectedDrive != drive)  in do_fd_action()
864 		fd_select_drive( drive );  in do_fd_action()
919 /* Seek the drive to the requested track. The drive must have been
1421  * Because the "Drive ready" signal isn't present in the Atari
1439 	unsigned int drive = p - unit;  in floppy_check_events()  local
1440 	if (test_bit (drive, &fake_change)) {  in floppy_check_events()
1444 	if (test_bit (drive, &changed_floppies)) {  in floppy_check_events()
1461 	unsigned int drive = p - unit;  in floppy_revalidate()  local
1463 	if (test_bit(drive, &changed_floppies) ||  in floppy_revalidate()
1464 	    test_bit(drive, &fake_change) || !p->disktype) {  in floppy_revalidate()
1468 		clear_bit(drive, &fake_change);  in floppy_revalidate()
1469 		clear_bit(drive, &changed_floppies);  in floppy_revalidate()
1473 		if (default_params[drive].blocks == 0)  in floppy_revalidate()
1476 			UDT = &default_params[drive];  in floppy_revalidate()
1484 static void setup_req_params( int drive )  in setup_req_params()  argument
1495 		read_track = (ReqCmd == READ && unit[drive].error_count == 0);  in setup_req_params()
1507 	int drive = floppy - unit;  in ataflop_queue_rq()  local
1510 	DPRINT(("Queue request: drive %d type %d sectors %d of %d last %d\n",  in ataflop_queue_rq()
1511 		drive, type, blk_rq_cur_sectors(bd->rq),  in ataflop_queue_rq()
1524 	unit[drive].error_count = 0;  in ataflop_queue_rq()
1532 		/* drive not connected */  in ataflop_queue_rq()
1533 		printk(KERN_ERR "Unknown Device: fd%d\n", drive );  in ataflop_queue_rq()
1550 			printk(KERN_WARNING "fd%d: invalid disk format", drive );  in ataflop_queue_rq()
1556 			printk(KERN_WARNING "fd%d: unsupported disk format", drive );  in ataflop_queue_rq()
1574 	setup_req_params( drive );  in ataflop_queue_rq()
1575 	do_fd_action( drive );  in ataflop_queue_rq()
1589 	int drive = floppy - unit;  in fd_locked_ioctl()  local
1609 			        drive, dtp, dtp->name);  in fd_locked_ioctl()
1633 		 * Currently, the drive geometry is cleared after each  in fd_locked_ioctl()
1654 			drive, setprm.size, setprm.sect, setprm.stretch);  in fd_locked_ioctl()
1673 				/* skip this one, invalid for drive ... */  in fd_locked_ioctl()
1685 				        drive, dtp->name, dtp);  in fd_locked_ioctl()
1691 				  default_params[drive].name    = dtp->name;  in fd_locked_ioctl()
1692 				  default_params[drive].spt     = dtp->spt;  in fd_locked_ioctl()
1693 				  default_params[drive].blocks  = dtp->blocks;  in fd_locked_ioctl()
1694 				  default_params[drive].fdc_speed = dtp->fdc_speed;  in fd_locked_ioctl()
1695 				  default_params[drive].stretch = dtp->stretch;  in fd_locked_ioctl()
1707 			dtp = &default_params[drive];  in fd_locked_ioctl()
1710 			dtp = &user_params[drive];  in fd_locked_ioctl()
1723 				drive, dtp->blocks, dtp->spt, dtp->stretch);  in fd_locked_ioctl()
1751 		return do_format(drive, type, &fmt_desc);  in fd_locked_ioctl()
1755 		default_params[drive].blocks  = 0;  in fd_locked_ioctl()
1762 		set_bit(drive, &fake_change);  in fd_locked_ioctl()
1785 /* Initialize the 'unit' variable for drive 'drive' */
1787 static void __init fd_probe( int drive )  in fd_probe()  argument
1792 	if (!fd_test_drive_present( drive ))  in fd_probe()
1797 	switch( UserSteprate[drive] ) {  in fd_probe()
1821 /* This function tests the physical presence of a floppy drive (not
1825  * signal. This should now be raised if there is a drive connected
1826  * (and there is no hardware failure :-) Otherwise, the drive is
1830 static int __init fd_test_drive_present( int drive )  in fd_test_drive_present()  argument
1836 	if (drive >= (MACH_IS_FALCON ? 1 : 2)) return( 0 );  in fd_test_drive_present()
1837 	fd_select_drive( drive );  in fd_test_drive_present()
1879 	int drive, cnt = 0;  in config_types()  local
1885 	printk(KERN_INFO "Probing floppy drive(s):\n");  in config_types()
1886 	for( drive = 0; drive < FD_MAX_UNITS; drive++ ) {  in config_types()
1887 		fd_probe( drive );  in config_types()
1889 			printk(KERN_INFO "fd%d\n", drive);  in config_types()
1917  * drive with different device numbers.
1993 static int ataflop_alloc_disk(unsigned int drive, unsigned int type)  in ataflop_alloc_disk()  argument
2000 	disk = blk_mq_alloc_disk(&unit[drive].tag_set, &lim, NULL);  in ataflop_alloc_disk()
2005 	disk->first_minor = drive + (type << 2);  in ataflop_alloc_disk()
2007 	sprintf(disk->disk_name, "fd%d", drive);  in ataflop_alloc_disk()
2011 	disk->private_data = &unit[drive];  in ataflop_alloc_disk()
2014 	unit[drive].disk[type] = disk;  in ataflop_alloc_disk()
2020 	int drive = MINOR(dev) & 3;  in ataflop_probe()  local
2026 	if (drive >= FD_MAX_UNITS || type >= NUM_DISK_MINORS)  in ataflop_probe()
2028 	if (unit[drive].disk[type])  in ataflop_probe()
2030 	if (ataflop_alloc_disk(drive, type))  in ataflop_probe()
2032 	if (add_disk(unit[drive].disk[type]))  in ataflop_probe()
2034 	unit[drive].registered[type] = true;  in ataflop_probe()
2038 	put_disk(unit[drive].disk[type]);  in ataflop_probe()
2039 	unit[drive].disk[type] = NULL;  in ataflop_probe()
2175 		printk(KERN_ERR "ataflop_setup: bad drive type\n" );  in atari_floppy_setup()