Pre 3.0 branch cleanup casualty #6: ft

12 files changed, 13 insertions, 2939 deletions

diff --git a/sys/amd64/conf/GENERIC b/sys/amd64/conf/GENERIC
index b0a077b6e659..5d16fd162f71 100644
--- a/sys/amd64/conf/GENERIC
+++ b/sys/amd64/conf/GENERIC
@@ -11,7 +11,7 @@
 # device lines is present in the ./LINT configuration file. If you are 
 # in doubt as to the purpose or necessity of a line, check first in LINT.
 #
-#	$Id: GENERIC,v 1.137 1998/12/27 13:06:40 phk Exp $
+#	$Id: GENERIC,v 1.138 1998/12/27 13:12:59 phk Exp $
 
 machine		"i386"
 cpu		"I386_CPU"
@@ -58,10 +58,6 @@ controller	pci0
 controller	fdc0	at isa? port "IO_FD1" bio irq 6 drq 2
 disk		fd0	at fdc0 drive 0
 disk		fd1	at fdc0 drive 1
-# Unless you know very well what you're doing, leave ft0 at drive 2, or
-# remove the line entirely if you don't need it.  Trying to configure
-# it on another unit might cause surprises, see PR kern/7176.
-tape		ft0	at fdc0 drive 2
 
 options		"CMD640"	# work around CMD640 chip deficiency
 controller	wdc0	at isa? port "IO_WD1" bio irq 14
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index 02cca8b4b0ff..01cd637fd4a3 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -2,7 +2,7 @@
 # LINT -- config file for checking all the sources, tries to pull in
 #	as much of the source tree as it can.
 #
-#	$Id: LINT,v 1.515 1998/12/27 12:52:45 phk Exp $
+#	$Id: LINT,v 1.516 1998/12/27 13:06:40 phk Exp $
 #
 # NB: You probably don't want to try running a kernel built from this
 # file.  Instead, you should start from GENERIC, and add options from
@@ -1021,8 +1021,6 @@ options		FDC_PRINT_BOGUS_CHIPTYPE
 
 disk		fd0	at fdc0 drive 0
 disk		fd1	at fdc0 drive 1
-tape		ft0	at fdc0 drive 2
-
 
 #
 # Other standard PC hardware: `lpt', `mse', `psm', `sio', etc.
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index 249a28542c05..9ce5364497db 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -1,7 +1,7 @@
 # This file tells config what files go into building a kernel,
 # files marked standard are always included.
 #
-#	$Id: files.i386,v 1.210 1998/12/27 12:52:46 phk Exp $
+#	$Id: files.i386,v 1.211 1998/12/27 13:06:41 phk Exp $
 #
 # The long compile-with and dependency lines are required because of
 # limitations in config: backslash-newline doesn't work in strings, and
@@ -108,7 +108,6 @@ i386/isa/diskslice_machdep.c	standard
 i386/isa/elink.c		optional	ep	device-driver
 i386/isa/elink.c		optional	ie	device-driver
 i386/isa/fd.c			optional	fd	device-driver
-i386/isa/ft.c			optional	ft	device-driver
 i386/isa/gpib.c			optional	gp	device-driver
 i386/isa/asc.c			optional	asc	device-driver
 i386/isa/gsc.c			optional	gsc	device-driver
diff --git a/sys/dev/fdc/fdc.c b/sys/dev/fdc/fdc.c
index e644f783957a..5380d54151d4 100644
--- a/sys/dev/fdc/fdc.c
+++ b/sys/dev/fdc/fdc.c
@@ -47,14 +47,10 @@
  * SUCH DAMAGE.
  *
  *	from:	@(#)fd.c	7.4 (Berkeley) 5/25/91
- *	$Id: fd.c,v 1.128 1998/12/12 08:16:01 imp Exp $
+ *	$Id: fd.c,v 1.129 1998/12/14 16:29:58 bde Exp $
  *
  */
 
-#include "ft.h"
-#if NFT < 1
-#undef NFDC
-#endif
 #include "fd.h"
 #include "opt_devfs.h"
 #include "opt_fdc.h"
@@ -80,10 +76,6 @@
 #include <i386/isa/fdc.h>
 #include <i386/isa/rtc.h>
 #include <machine/stdarg.h>
-#if NFT > 0
-#include <sys/ftape.h>
-#include <i386/isa/ftreg.h>
-#endif
 #ifdef	DEVFS
 #include <sys/devfsext.h>
 #endif	/* DEVFS */
@@ -198,17 +190,6 @@ static struct fd_data {
 * fdsu is the floppy drive unit number on that controller. (sub-unit)	*
 \***********************************************************************/
 
-#if NFT > 0
-int ftopen(dev_t, int);
-int ftintr(ftu_t ftu);
-int ftclose(dev_t, int);
-void ftstrategy(struct buf *);
-int ftioctl(dev_t, unsigned long, caddr_t, int, struct proc *);
-int ftdump(dev_t);
-int ftsize(dev_t);
-int ftattach(struct isa_device *, struct isa_device *, int);
-#endif
-
 #ifdef FDC_YE
 #include "card.h"
 static int yeattach(struct isa_device *);
@@ -650,9 +631,6 @@ fdattach(struct isa_device *dev)
 	fdc_p	fdc = fdc_data + fdcu;
 	fd_p	fd;
 	int	fdsu, st0, st3, i;
-#if NFT > 0
-	int	unithasfd;
-#endif
 	struct isa_device *fdup;
 	int ic_type = 0;
 #ifdef DEVFS
@@ -679,7 +657,7 @@ fdattach(struct isa_device *dev)
 			continue;
 		fdu = fdup->id_unit;
 		fd = &fd_data[fdu];
-		if (fdu >= (NFD+NFT))
+		if (fdu >= (NFD))
 			continue;
 		fdsu = fdup->id_physid;
 		/* look up what bios thinks we have */
@@ -696,26 +674,8 @@ fdattach(struct isa_device *dev)
 		}
 		/* is there a unit? */
 		if ((fdt == RTCFDT_NONE)
-#if NFT > 0
-		    || (fdsu >= DRVS_PER_CTLR)) {
-#else
 		) {
 			fd->type = NO_TYPE;
-#endif
-#if NFT > 0
-			/* If BIOS says no floppy, or > 2nd device */
-			/* Probe for and attach a floppy tape.     */
-			/* Tell FT if there was already a disk     */
-			/* with this unit number found.            */
-
-			unithasfd = 0;
-			if (fdu < NFD && fd->type != NO_TYPE)
-				unithasfd = 1;
-			if (ftattach(dev, fdup, unithasfd))
-				continue;
-			if (fdsu < DRVS_PER_CTLR)
-				fd->type = NO_TYPE;
-#endif
 			continue;
 		}
 
@@ -1264,11 +1224,6 @@ Fdopen(dev_t dev, int flags, int mode, struct proc *p)
 	int type = FDTYPE(minor(dev));
 	fdc_p	fdc;
 
-#if NFT > 0
-	/* check for a tape open */
-	if (type & F_TAPE_TYPE)
-		return(ftopen(dev, flags));
-#endif
 	/* check bounds */
 	if (fdu >= NFD)
 		return(ENXIO);
@@ -1342,12 +1297,6 @@ fdclose(dev_t dev, int flags, int mode, struct proc *p)
 {
  	fdu_t fdu = FDUNIT(minor(dev));
 
-#if NFT > 0
-	int type = FDTYPE(minor(dev));
-
-	if (type & F_TAPE_TYPE)
-		return ftclose(dev, flags);
-#endif
 	fd_data[fdu].flags &= ~FD_OPEN;
 	fd_data[fdu].options &= ~FDOPT_NORETRY;
 
@@ -1397,20 +1346,6 @@ fdstrategy(struct buf *bp)
 	};
 #endif
 
-#if NFT > 0
-	if (FDTYPE(minor(bp->b_dev)) & F_TAPE_TYPE) {
-		/* ft tapes do not (yet) support strategy i/o */
-		bp->b_error = ENODEV;
-		bp->b_flags |= B_ERROR;
-		goto bad;
-	}
-	/* check for controller already busy with tape */
-	if (fdc->flags & FDC_TAPE_BUSY) {
-		bp->b_error = EBUSY;
-		bp->b_flags |= B_ERROR;
-		goto bad;
-	}
-#endif
 	fdblk = 128 << (fd->ft->secsize);
 	if (!(bp->b_flags & B_FORMAT)) {
 		if ((fdu >= NFD) || (bp->b_blkno < 0)) {
@@ -1544,13 +1479,6 @@ static void
 fdintr(fdcu_t fdcu)
 {
 	fdc_p fdc = fdc_data + fdcu;
-#if NFT > 0
-	fdu_t fdu = fdc->fdu;
-
-	if (fdc->flags & FDC_TAPE_BUSY)
-		(ftintr(fdu));
-	else
-#endif
 		while(fdstate(fdcu, fdc))
 			;
 }
@@ -2251,14 +2179,6 @@ fdioctl(dev, cmd, addr, flag, p)
 	char buffer[DEV_BSIZE];
 	int error = 0;
 
-#if NFT > 0
-	int type = FDTYPE(minor(dev));
-
-	/* check for a tape ioctl */
-	if (type & F_TAPE_TYPE)
-		return ftioctl(dev, cmd, addr, flag, p);
-#endif
-
 	fdblk = 128 << fd->ft->secsize;
 
 	switch (cmd)
diff --git a/sys/i386/conf/GENERIC b/sys/i386/conf/GENERIC
index b0a077b6e659..5d16fd162f71 100644
--- a/sys/i386/conf/GENERIC
+++ b/sys/i386/conf/GENERIC
@@ -11,7 +11,7 @@
 # device lines is present in the ./LINT configuration file. If you are 
 # in doubt as to the purpose or necessity of a line, check first in LINT.
 #
-#	$Id: GENERIC,v 1.137 1998/12/27 13:06:40 phk Exp $
+#	$Id: GENERIC,v 1.138 1998/12/27 13:12:59 phk Exp $
 
 machine		"i386"
 cpu		"I386_CPU"
@@ -58,10 +58,6 @@ controller	pci0
 controller	fdc0	at isa? port "IO_FD1" bio irq 6 drq 2
 disk		fd0	at fdc0 drive 0
 disk		fd1	at fdc0 drive 1
-# Unless you know very well what you're doing, leave ft0 at drive 2, or
-# remove the line entirely if you don't need it.  Trying to configure
-# it on another unit might cause surprises, see PR kern/7176.
-tape		ft0	at fdc0 drive 2
 
 options		"CMD640"	# work around CMD640 chip deficiency
 controller	wdc0	at isa? port "IO_WD1" bio irq 14
diff --git a/sys/i386/conf/LINT b/sys/i386/conf/LINT
index 02cca8b4b0ff..01cd637fd4a3 100644
--- a/sys/i386/conf/LINT
+++ b/sys/i386/conf/LINT
@@ -2,7 +2,7 @@
 # LINT -- config file for checking all the sources, tries to pull in
 #	as much of the source tree as it can.
 #
-#	$Id: LINT,v 1.515 1998/12/27 12:52:45 phk Exp $
+#	$Id: LINT,v 1.516 1998/12/27 13:06:40 phk Exp $
 #
 # NB: You probably don't want to try running a kernel built from this
 # file.  Instead, you should start from GENERIC, and add options from
@@ -1021,8 +1021,6 @@ options		FDC_PRINT_BOGUS_CHIPTYPE
 
 disk		fd0	at fdc0 drive 0
 disk		fd1	at fdc0 drive 1
-tape		ft0	at fdc0 drive 2
-
 
 #
 # Other standard PC hardware: `lpt', `mse', `psm', `sio', etc.
diff --git a/sys/i386/conf/NOTES b/sys/i386/conf/NOTES
index 02cca8b4b0ff..01cd637fd4a3 100644
--- a/sys/i386/conf/NOTES
+++ b/sys/i386/conf/NOTES
@@ -2,7 +2,7 @@
 # LINT -- config file for checking all the sources, tries to pull in
 #	as much of the source tree as it can.
 #
-#	$Id: LINT,v 1.515 1998/12/27 12:52:45 phk Exp $
+#	$Id: LINT,v 1.516 1998/12/27 13:06:40 phk Exp $
 #
 # NB: You probably don't want to try running a kernel built from this
 # file.  Instead, you should start from GENERIC, and add options from
@@ -1021,8 +1021,6 @@ options		FDC_PRINT_BOGUS_CHIPTYPE
 
 disk		fd0	at fdc0 drive 0
 disk		fd1	at fdc0 drive 1
-tape		ft0	at fdc0 drive 2
-
 
 #
 # Other standard PC hardware: `lpt', `mse', `psm', `sio', etc.
diff --git a/sys/i386/conf/files.i386 b/sys/i386/conf/files.i386
index 249a28542c05..9ce5364497db 100644
--- a/sys/i386/conf/files.i386
+++ b/sys/i386/conf/files.i386
@@ -1,7 +1,7 @@
 # This file tells config what files go into building a kernel,
 # files marked standard are always included.
 #
-#	$Id: files.i386,v 1.210 1998/12/27 12:52:46 phk Exp $
+#	$Id: files.i386,v 1.211 1998/12/27 13:06:41 phk Exp $
 #
 # The long compile-with and dependency lines are required because of
 # limitations in config: backslash-newline doesn't work in strings, and
@@ -108,7 +108,6 @@ i386/isa/diskslice_machdep.c	standard
 i386/isa/elink.c		optional	ep	device-driver
 i386/isa/elink.c		optional	ie	device-driver
 i386/isa/fd.c			optional	fd	device-driver
-i386/isa/ft.c			optional	ft	device-driver
 i386/isa/gpib.c			optional	gp	device-driver
 i386/isa/asc.c			optional	asc	device-driver
 i386/isa/gsc.c			optional	gsc	device-driver
diff --git a/sys/i386/isa/fd.c b/sys/i386/isa/fd.c
index e644f783957a..5380d54151d4 100644
--- a/sys/i386/isa/fd.c
+++ b/sys/i386/isa/fd.c
@@ -47,14 +47,10 @@
  * SUCH DAMAGE.
  *
  *	from:	@(#)fd.c	7.4 (Berkeley) 5/25/91
- *	$Id: fd.c,v 1.128 1998/12/12 08:16:01 imp Exp $
+ *	$Id: fd.c,v 1.129 1998/12/14 16:29:58 bde Exp $
  *
  */
 
-#include "ft.h"
-#if NFT < 1
-#undef NFDC
-#endif
 #include "fd.h"
 #include "opt_devfs.h"
 #include "opt_fdc.h"
@@ -80,10 +76,6 @@
 #include <i386/isa/fdc.h>
 #include <i386/isa/rtc.h>
 #include <machine/stdarg.h>
-#if NFT > 0
-#include <sys/ftape.h>
-#include <i386/isa/ftreg.h>
-#endif
 #ifdef	DEVFS
 #include <sys/devfsext.h>
 #endif	/* DEVFS */
@@ -198,17 +190,6 @@ static struct fd_data {
 * fdsu is the floppy drive unit number on that controller. (sub-unit)	*
 \***********************************************************************/
 
-#if NFT > 0
-int ftopen(dev_t, int);
-int ftintr(ftu_t ftu);
-int ftclose(dev_t, int);
-void ftstrategy(struct buf *);
-int ftioctl(dev_t, unsigned long, caddr_t, int, struct proc *);
-int ftdump(dev_t);
-int ftsize(dev_t);
-int ftattach(struct isa_device *, struct isa_device *, int);
-#endif
-
 #ifdef FDC_YE
 #include "card.h"
 static int yeattach(struct isa_device *);
@@ -650,9 +631,6 @@ fdattach(struct isa_device *dev)
 	fdc_p	fdc = fdc_data + fdcu;
 	fd_p	fd;
 	int	fdsu, st0, st3, i;
-#if NFT > 0
-	int	unithasfd;
-#endif
 	struct isa_device *fdup;
 	int ic_type = 0;
 #ifdef DEVFS
@@ -679,7 +657,7 @@ fdattach(struct isa_device *dev)
 			continue;
 		fdu = fdup->id_unit;
 		fd = &fd_data[fdu];
-		if (fdu >= (NFD+NFT))
+		if (fdu >= (NFD))
 			continue;
 		fdsu = fdup->id_physid;
 		/* look up what bios thinks we have */
@@ -696,26 +674,8 @@ fdattach(struct isa_device *dev)
 		}
 		/* is there a unit? */
 		if ((fdt == RTCFDT_NONE)
-#if NFT > 0
-		    || (fdsu >= DRVS_PER_CTLR)) {
-#else
 		) {
 			fd->type = NO_TYPE;
-#endif
-#if NFT > 0
-			/* If BIOS says no floppy, or > 2nd device */
-			/* Probe for and attach a floppy tape.     */
-			/* Tell FT if there was already a disk     */
-			/* with this unit number found.            */
-
-			unithasfd = 0;
-			if (fdu < NFD && fd->type != NO_TYPE)
-				unithasfd = 1;
-			if (ftattach(dev, fdup, unithasfd))
-				continue;
-			if (fdsu < DRVS_PER_CTLR)
-				fd->type = NO_TYPE;
-#endif
 			continue;
 		}
 
@@ -1264,11 +1224,6 @@ Fdopen(dev_t dev, int flags, int mode, struct proc *p)
 	int type = FDTYPE(minor(dev));
 	fdc_p	fdc;
 
-#if NFT > 0
-	/* check for a tape open */
-	if (type & F_TAPE_TYPE)
-		return(ftopen(dev, flags));
-#endif
 	/* check bounds */
 	if (fdu >= NFD)
 		return(ENXIO);
@@ -1342,12 +1297,6 @@ fdclose(dev_t dev, int flags, int mode, struct proc *p)
 {
  	fdu_t fdu = FDUNIT(minor(dev));
 
-#if NFT > 0
-	int type = FDTYPE(minor(dev));
-
-	if (type & F_TAPE_TYPE)
-		return ftclose(dev, flags);
-#endif
 	fd_data[fdu].flags &= ~FD_OPEN;
 	fd_data[fdu].options &= ~FDOPT_NORETRY;
 
@@ -1397,20 +1346,6 @@ fdstrategy(struct buf *bp)
 	};
 #endif
 
-#if NFT > 0
-	if (FDTYPE(minor(bp->b_dev)) & F_TAPE_TYPE) {
-		/* ft tapes do not (yet) support strategy i/o */
-		bp->b_error = ENODEV;
-		bp->b_flags |= B_ERROR;
-		goto bad;
-	}
-	/* check for controller already busy with tape */
-	if (fdc->flags & FDC_TAPE_BUSY) {
-		bp->b_error = EBUSY;
-		bp->b_flags |= B_ERROR;
-		goto bad;
-	}
-#endif
 	fdblk = 128 << (fd->ft->secsize);
 	if (!(bp->b_flags & B_FORMAT)) {
 		if ((fdu >= NFD) || (bp->b_blkno < 0)) {
@@ -1544,13 +1479,6 @@ static void
 fdintr(fdcu_t fdcu)
 {
 	fdc_p fdc = fdc_data + fdcu;
-#if NFT > 0
-	fdu_t fdu = fdc->fdu;
-
-	if (fdc->flags & FDC_TAPE_BUSY)
-		(ftintr(fdu));
-	else
-#endif
 		while(fdstate(fdcu, fdc))
 			;
 }
@@ -2251,14 +2179,6 @@ fdioctl(dev, cmd, addr, flag, p)
 	char buffer[DEV_BSIZE];
 	int error = 0;
 
-#if NFT > 0
-	int type = FDTYPE(minor(dev));
-
-	/* check for a tape ioctl */
-	if (type & F_TAPE_TYPE)
-		return ftioctl(dev, cmd, addr, flag, p);
-#endif
-
 	fdblk = 128 << fd->ft->secsize;
 
 	switch (cmd)
diff --git a/sys/i386/isa/ft.c b/sys/i386/isa/ft.c
deleted file mode 100644
index 097bbb6a0c3f..000000000000
--- a/sys/i386/isa/ft.c
+++ /dev/null
@@ -1,2580 +0,0 @@
-/*
- *  Copyright (c) 1993, 1994 Steve Gerakines
- *
- *  This is freely redistributable software.  You may do anything you
- *  wish with it, so long as the above notice stays intact.
- *
- *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
- *  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- *  DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
- *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- *  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- *  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- *  POSSIBILITY OF SUCH DAMAGE.
- *
- *  ft.c - QIC-40/80 floppy tape driver
- *  $Id: ft.c,v 1.38 1998/07/15 09:59:31 bde Exp $
- *
- *  01/19/95 ++sg
- *  Cleaned up recalibrate/seek code at attach time for FreeBSD 2.x.
- *
- *  06/07/94 v0.9 ++sg
- *  Tape stuck on segment problem should be gone.  Re-wrote buffering
- *  scheme.  Added support for drives that do not automatically perform
- *  seek load point.  Can handle more wakeup types now and should correctly
- *  report most manufacturer names.  Fixed places where unit 0 was being
- *  sent to the fdc instead of the actual unit number.  Added ioctl support
- *  for an in-core badmap.
- *
- *  01/26/94 v0.3b - Jim Babb
- *  Got rid of the hard coded device selection.  Moved (some of) the
- *  static variables into a structure for support of multiple devices.
- *  ( still has a way to go for 2 controllers - but closer )
- *  Changed the interface with fd.c so we no longer 'steal' its
- *  driver routine vectors.
- *
- *  10/30/93 v0.3
- *  Fixed a couple more bugs.  Reading was sometimes looping when an
- *  an error such as address-mark-missing was encountered.  Both
- *  reading and writing was having more backup-and-retries than was
- *  necessary.  Added support to get hardware info.  Updated for use
- *  with FreeBSD.
- *
- *  09/15/93 v0.2 pl01
- *  Fixed a bunch of bugs:  extra isa_dmadone() in async_write() (shouldn't
- *  matter), fixed double buffering in async_req(), changed tape_end() in
- *  set_fdcmode() to reduce unexpected interrupts, changed end of track
- *  processing in async_req(), protected more of ftreq_rw() with an
- *  splbio().  Changed some of the ftreq_*() functions so that they wait
- *  for inactivity and then go, instead of aborting immediately.
- *
- *  08/07/93 v0.2 release
- *  Shifted from ftstrat to ioctl support for I/O.  Streaming is now much
- *  more reliable.  Added internal support for error correction, QIC-40,
- *  and variable length tapes.  Random access of segments greatly
- *  improved.  Formatting and verification support is close but still
- *  incomplete.
- *
- *  06/03/93 v0.1 Alpha release
- *  Hopefully the last re-write.  Many bugs fixed, many remain.
- */
-
-#include "ft.h"
-#if NFT > 0
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/disklabel.h>	/* temp. for dkunit() in fdc.h */
-#include <sys/malloc.h>
-#include <sys/buf.h>
-#include <sys/ftape.h>
-#include <sys/kernel.h>
-
-#include <machine/clock.h>
-
-#include <i386/isa/isa_device.h>
-#ifdef PC98
-#include <pc98/pc98/fdreg.h>
-#else
-#include <i386/isa/fdreg.h>
-#endif
-#include <i386/isa/fdc.h>
-#include <i386/isa/ftreg.h>
-
-extern int ftintr __P((ftu_t ftu));
-
-/* Enable or disable debugging messages. */
-#define FTDBGALL 0			/* 1 if you want everything */
-/*#define DPRT(a) printf a		*/
-#define DPRT(a)
-
-/* Constants private to the driver */
-#define FTPRI		(PRIBIO)	/* sleep priority */
-#define	FTNBUFF		9		/* 8 for buffering, 1 for header */
-
-/* The following items are needed from the fd driver. */
-extern int in_fdc(int);			/* read fdc registers */
-extern int out_fdc(int, int);		/* write fdc registers */
-
-/* Flags in isadev struct */
-#define	FT_PROBE	0x1		/* allow for "dangerous" tape probes */
-
-/* Type of tape attached */
-/* use numbers that don't interfere with the possible floppy types */
-#define NO_TYPE 0		/* (same as NO_TYPE in fd.c) */
-
-/* F_TAPE_TYPE must match value in fd.c */
-#define F_TAPE_TYPE	0x020		/* bit for ft->types to indicate tape */
-#define FT_NONE		(F_TAPE_TYPE | 0)	/* no method required */
-#define	FT_MOUNTAIN	(F_TAPE_TYPE | 1)	/* mountain */
-#define	FT_COLORADO	(F_TAPE_TYPE | 2)	/* colorado */
-#define FT_INSIGHT	(F_TAPE_TYPE | 3)	/* insight */
-
-/* Mode FDC is currently in: tape or disk */
-enum { FDC_TAPE_MODE, FDC_DISK_MODE };
-
-/* Command we are awaiting completion of */
-enum { FTCMD_NONE, FTCMD_RESET, FTCMD_RECAL, FTCMD_SEEK, FTCMD_READID };
-
-/* Tape interrupt status of current request */
-enum { FTSTS_NONE, FTSTS_SNOOZE, FTSTS_INTERRUPT, FTSTS_TIMEOUT };
-
-/* Tape I/O status */
-enum {
-	FTIO_READY,		/* No I/O activity */
-	FTIO_READING,		/* Currently reading blocks */
-	FTIO_RDAHEAD,		/* Currently reading ahead */
-	FTIO_WRITING		/* Buffers are being written */
-};
-
-/* Current tape mode */
-enum {
-	FTM_PRIMARY,		/* Primary mode */
-	FTM_VERIFY,		/* Verify mode */
-	FTM_FORMAT,		/* Format mode */
-	FTM_DIAG1,		/* Diagnostic mode 1 */
-	FTM_DIAG2		/* Diagnostic mode 2 */
-};
-
-/* Tape geometries table */
-static QIC_Geom ftgtbl[] = {
-	{ 0, 0, "Unformatted", "Unknown", 0,  0,     0,   0,     0 }, /* XXX */
-	{ 1, 1, "QIC-40",  "205/550",	20,  68,  2176, 128, 21760 },
-	{ 1, 2, "QIC-40",  "307.5/550",	20, 102,  3264, 128, 32640 },
-	{ 1, 3, "QIC-40",  "295/900",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 1, 4, "QIC-40",  "1100/550",	20, 365, 11680, 128, 32512 },
-	{ 1, 5, "QIC-40",  "1100/900",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 2, 1, "QIC-80",  "205/550",	28, 100,  3200, 128, 19200 },
-	{ 2, 2, "QIC-80",  "307.5/550",	28, 150,  4800, 128, 19200 },
-	{ 2, 3, "QIC-80",  "295/900",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 2, 4, "QIC-80",  "1100/550",	28, 537, 17184, 128, 32512 },
-	{ 2, 5, "QIC-80",  "1100/900",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 3, 1, "QIC-500", "205/550",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 3, 2, "QIC-500", "307.5/550",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 3, 3, "QIC-500", "295/900",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 3, 4, "QIC-500", "1100/550",	 0,   0,     0,   0,     0 }, /* ??? */
-	{ 3, 5, "QIC-500", "1100/900",	 0,   0,     0,   0,     0 }  /* ??? */
-};
-#define NGEOM	(sizeof(ftgtbl) / sizeof(QIC_Geom))
-
-static QIC_Geom *ftg = NULL;			/* Current tape's geometry */
-
-/*
- *  things relating to asynchronous commands
- */
-static int awr_state;		/* state of async write */
-static int ard_state;		/* state of async read */
-static int arq_state;		/* state of async request */
-static int async_retries;	/* retries, one per invocation */
-static int async_func;		/* function to perform */
-static int async_state;		/* state current function is at */
-static int async_arg0;		/* up to 3 arguments for async cmds */
-static int async_arg1;		/**/
-static int async_arg2;		/**/
-static int async_ret;		/* return value */
-static struct _astk {
-	int over_func;
-	int over_state;
-	int over_retries;
-	int over_arg0;
-	int over_arg1;
-	int over_arg2;
-} astk[10];
-static struct _astk *astk_ptr = &astk[0]; /* Pointer to stack position */
-
-/* List of valid async (interrupt driven) tape support functions. */
-enum {
-	ACMD_NONE, 		/* no command */
-	ACMD_SEEK,		/* command seek */
-	ACMD_STATUS,		/* report status */
-	ACMD_STATE,		/* wait for state bits to be true */
-	ACMD_SEEKSTS,		/* perform command and wait for status */
-	ACMD_READID,		/* read id */
-	ACMD_RUNBLK		/* ready tape for I/O on the given block */
-};
-
-/* Call another asyncronous command from within async_cmd(). */
-#define CALL_ACMD(r,f,a,b,c) \
-			astk_ptr->over_retries = async_retries; \
-			astk_ptr->over_func = async_func; \
-			astk_ptr->over_state = (r); \
-			astk_ptr->over_arg0 = async_arg0; \
-			astk_ptr->over_arg1 = async_arg1; \
-			astk_ptr->over_arg2 = async_arg2; \
-			async_func = (f); async_state = 0; async_retries = 0; \
-			async_arg0=(a); async_arg1=(b); async_arg2=(c); \
-			astk_ptr++; \
-			goto restate
-
-/* Perform an asyncronous command from outside async_cmd(). */
-#define ACMD_FUNC(r,f,a,b,c) over_async = (r); astk_ptr = &astk[0]; \
-			async_func = (f); async_state = 0; async_retries = 0; \
-			async_arg0=(a); async_arg1=(b); async_arg2=(c); \
-			async_cmd(ftu); \
-			return
-
-/* Various wait channels */
-static char *wc_buff_avail	= "bavail";
-static char *wc_buff_done	= "bdone";
-static char *wc_iosts_change	= "iochg";
-static char *wc_long_delay	= "ldelay";
-static char *wc_intr_wait	= "intrw";
-#define ftsleep(wc,to)	tsleep((caddr_t)(wc),FTPRI,(wc),(to))
-
-/***********************************************************************\
-* Per controller structure.						*
-\***********************************************************************/
-extern struct fdc_data fdc_data[NFDC];
-
-/***********************************************************************\
-* Per tape drive structure.						*
-\***********************************************************************/
-static struct ft_data {
-	struct	fdc_data *fdc;	/* pointer to controller structure */
-	int	ftsu;		/* this units number on this controller */
-	int	type;		/* Drive type (Mountain, Colorado) */
-/*	QIC_Geom *ftg;	*/	/* pointer to Current tape's geometry */
-	int	flags;
-	int	cmd_wait;	/* Command we are awaiting completion of */
-	int	sts_wait;	/* Tape interrupt status of current request */
-	int	io_sts;		/* Tape I/O status */
-	int	mode;
-	int	pcn;		/* present cylinder number */
-	int	attaching;	/* true when ft is attaching */
-	unsigned char *xptr;	/* pointer to buffer blk to xfer  */
-	int	xcnt;		/* transfer count                 */
-	int	xblk;		/* block number to transfer       */
-	int	xseg;		/* segment being transferred	  */
-	SegReq *segh;		/* Current I/O request		  */
-	SegReq *segt;		/* Tail of queued I/O requests	  */
-	SegReq *doneh;		/* Completed I/O request queue    */
-	SegReq *donet;		/* Completed I/O request tail	  */
-	SegReq *segfree;	/* Free segments		  */
-	SegReq *hdr;		/* Current tape header		  */
-	int nsegq;		/* Segments on request queue	  */
-	int ndoneq;		/* Segments on completed queue	  */
-	int nfreelist;		/* Segments on free list	  */
-
-				/* the next 3 should be defines in 'flags' */
-	int active;		/* TRUE if transfer is active	  */
-	int rdonly;		/* TRUE if tape is read-only	  */
-	int newcart;		/* TRUE if new cartridge detected */
-	int laststs;		/* last reported status code      */
-	int lastcfg;		/* last reported QIC config	  */
-	int lasterr;		/* last QIC error code 		  */
-	int lastpos;		/* last known segment number	  */
-	int moving;		/* TRUE if tape is moving	  */
-	int rid[7];		/* read_id return values	  */
-	struct callout_handle tohandle;
-} *ft_data[NFT];
-
-/***********************************************************************\
-* Throughout this file the following conventions will be used:		*
-* ft is a pointer to the ft_data struct for the drive in question	*
-* fdc is a pointer to the fdc_data struct for the controller		*
-* ftu is the tape drive unit number					*
-* fdcu is the floppy controller unit number				*
-* ftsu is the tape drive unit number on that controller. (sub-unit)	*
-\***********************************************************************/
-
-
-
-#define	id_physid id_scsiid	/* this biotab field doubles as a field */
-				/* for the physical unit number on the controller */
-
-int ftopen(dev_t, int);
-int ftclose(dev_t, int);
-int ftioctl(dev_t, unsigned long, caddr_t, int, struct proc *);
-int ftattach(struct isa_device *, struct isa_device *, int);
-static timeout_t ft_timeout;
-static void async_cmd(ftu_t);
-static void async_req(ftu_t, int);
-static void async_read(ftu_t, int);
-static void async_write(ftu_t, int);
-static void tape_start(ftu_t, int);
-static void tape_end(ftu_t);
-static void tape_inactive(ftu_t);
-static int tape_cmd(ftu_t, int);
-static int tape_status(ftu_t);
-static int qic_status(ftu_t, int, int);
-static int ftreq_rewind(ftu_t);
-static int ftreq_hwinfo(ftu_t, QIC_HWInfo *);
-
-/*****************************************************************************/
-
-
-/*
- *  Allocate a segment I/O buffer from the free list.
- */
-static SegReq *
-segio_alloc(ft_p ft)
-{
-  SegReq *r;
-
-  /* Grab first item from free list */
-  if ((r = ft->segfree) != NULL) {
-	ft->segfree = ft->segfree->next;
-	ft->nfreelist--;
-  }
-  DPRT(("segio_alloc: nfree=%d ndone=%d nreq=%d\n", ft->nfreelist, ft->ndoneq, ft->nsegq));
-  return(r);
-}
-
-
-/*
- *  Queue a segment I/O request.
- */
-static void
-segio_queue(ft_p ft, SegReq *sp)
-{
-  /* Put request on in process queue. */
-  if (ft->segt == NULL)
-	ft->segh = sp;
-  else
-	ft->segt->next = sp;
-  sp->next = NULL;
-  ft->segt = sp;
-  ft->nsegq++;
-  DPRT(("segio_queue: nfree=%d ndone=%d nreq=%d\n", ft->nfreelist, ft->ndoneq, ft->nsegq));
-}
-
-
-/*
- *  Segment I/O completed, place on correct queue.
- */
-static void
-segio_done(ft_p ft, SegReq *sp)
-{
-  /* First remove from current I/O queue */
-  ft->segh = sp->next;
-  if (ft->segh == NULL) ft->segt = NULL;
-  ft->nsegq--;
-
-  if (sp->reqtype == FTIO_WRITING) {
-	/* Place on free list */
-	sp->next = ft->segfree;
-	ft->segfree = sp;
-	ft->nfreelist++;
-	wakeup((caddr_t)wc_buff_avail);
-	DPRT(("segio_done: (w) nfree=%d ndone=%d nreq=%d\n", ft->nfreelist, ft->ndoneq, ft->nsegq));
-  } else {
-	/* Put on completed I/O queue */
-	if (ft->donet == NULL)
-		ft->doneh = sp;
-	else
-		ft->donet->next = sp;
-	sp->next = NULL;
-	ft->donet = sp;
-	ft->ndoneq++;
-	wakeup((caddr_t)wc_buff_done);
-	DPRT(("segio_done: (r) nfree=%d ndone=%d nreq=%d\n", ft->nfreelist, ft->ndoneq, ft->nsegq));
-  }
-}
-
-
-/*
- *  Take I/O request from finished queue to free queue.
- */
-static void
-segio_free(ft_p ft, SegReq *sp)
-{
-  /* First remove from done queue */
-  ft->doneh = sp->next;
-  if (ft->doneh == NULL) ft->donet = NULL;
-  ft->ndoneq--;
-
-  /* Place on free list */
-  sp->next = ft->segfree;
-  ft->segfree = sp;
-  ft->nfreelist++;
-  wakeup((caddr_t)wc_buff_avail);
-  DPRT(("segio_free: nfree=%d ndone=%d nreq=%d\n", ft->nfreelist, ft->ndoneq, ft->nsegq));
-}
-
-/*
- *  Probe/attach floppy tapes.
- */
-int
-ftattach(isadev, fdup, unithasfd)
-	struct isa_device *isadev, *fdup;
-	int unithasfd;
-{
-  fdcu_t fdcu = isadev->id_unit;		/* fdc active unit */
-  fdc_p fdc = fdc_data + fdcu;	/* pointer to controller structure */
-  ftu_t ftu = fdup->id_unit;
-  ft_p ft;
-  ftsu_t ftsu = fdup->id_physid;
-  QIC_HWInfo hw;
-  char *manu;
-
-  if (ftu >= NFT) return 0;
-  ft = ft_data[ftu] = malloc(sizeof *ft, M_DEVBUF, M_WAITOK);
-  bzero(ft, sizeof *ft);
-  callout_handle_init(&ft->tohandle);
-
-  /* Probe for tape */
-  ft->attaching = 1;
-  ft->type = NO_TYPE;
-  ft->fdc = fdc;
-  ft->ftsu = ftsu;
-
-  /*
-   *  FT_NONE - no method, just do it
-   */
-  tape_start(ftu, 0);
-  if (tape_status(ftu) >= 0) {
-	ft->type = FT_NONE;
-	ftreq_hwinfo(ftu, &hw);
-	goto out;
-  }
-
-  /*
-   *  FT_COLORADO - colorado style
-   */
-  tape_start(ftu, 0);
-  tape_cmd(ftu, QC_COL_ENABLE1);
-  tape_cmd(ftu, QC_COL_ENABLE2 + ftu);
-  if (tape_status(ftu) >= 0) {
-	ft->type = FT_COLORADO;
-	ftreq_hwinfo(ftu, &hw);
-	tape_cmd(ftu, QC_COL_DISABLE);
-	goto out;
-  }
-
-  /*
-   *  FT_MOUNTAIN - mountain style
-   */
-  tape_start(ftu, 0);
-  tape_cmd(ftu, QC_MTN_ENABLE1);
-  tape_cmd(ftu, QC_MTN_ENABLE2);
-  if (tape_status(ftu) >= 0) {
-	ft->type = FT_MOUNTAIN;
-	ftreq_hwinfo(ftu, &hw);
-	tape_cmd(ftu, QC_MTN_DISABLE);
-	goto out;
-  }
-
-  if(isadev->id_flags & FT_PROBE) {
-    /*
-     * Insight probe is dangerous, since it requires the motor being
-     * enabled and therefore risks attached floppy disk drives to jam.
-     * Probe only if explicitly requested by a flag 0x1 from config
-     */
-
-    /*
-     *  FT_INSIGHT - insight style
-     *
-     *  Since insight requires turning the drive motor on, we will not
-     *  perform this probe if a floppy drive was already found with the
-     *  the given unit and controller.
-     */
-    if (unithasfd) goto out;
-    tape_start(ftu, 1);
-    if (tape_status(ftu) >= 0) {
-	ft->type = FT_INSIGHT;
-	ftreq_hwinfo(ftu, &hw);
-	goto out;
-    }
-  }
-
-out:
-  tape_end(ftu);
-  if (ft->type != NO_TYPE) {
-	fdc->flags |= FDC_HASFTAPE;
-	switch(hw.hw_make) {
-	    case 0x0000:
-		if (ft->type == FT_COLORADO) {
-			manu = "Colorado";
-		} else if (ft->type == FT_INSIGHT) {
-			manu = "Insight";
-		} else if (ft->type == FT_MOUNTAIN && hw.hw_model == 0x05) {
-			manu = "Archive";
-		} else if (ft->type == FT_MOUNTAIN) {
-			manu = "Mountain";
-		} else {
-			manu = "Unknown";
-		}
-		break;
-	    case 0x0001:
-		manu = "Colorado";
-		break;
-	    case 0x0005:
-		if (hw.hw_model >= 0x09) {
-			manu = "Conner";
-		} else {
-			manu = "Archive";
-		}
-		break;
-	    case 0x0006:
-		manu = "Mountain";
-		break;
-	    case 0x0007:
-		manu = "Wangtek";
-		break;
-	    case 0x0222:
-		manu = "IOMega";
-		break;
-	    default:
-		manu = "Unknown";
-		break;
-	}
-	printf("ft%d: %s tape\n", fdup->id_unit, manu);
-  }
-  ft->attaching = 0;
-  return(ft->type);
-}
-
-
-/*
- *  Perform common commands asynchronously.
- */
-static void
-async_cmd(ftu_t ftu) {
-	ft_p	ft = ft_data[ftu];
-	fdcu_t	fdcu = ft->fdc->fdcu;
-	int cmd, i, st0, st3, pcn;
-	static int bitn, retval, retpos, nbits, newcn;
-	static int wanttrk, wantblk, wantdir;
-	static int curtrk, curblk, curdir, curdiff;
-	static int errcnt = 0;
-
-restate:
-#if FTDBGALL
-  DPRT(("async_cmd state: func: %d  state: %d\n", async_func, async_state));
-#endif
-  switch(async_func) {
-     case ACMD_SEEK:
-	/*
-	 *  Arguments:
-	 *     0 - command to perform
-	 */
-	switch (async_state) {
-	    case 0:
-		cmd = async_arg0;
-#if FTDBGALL
-		DPRT(("===>async_seek cmd = %d\n", cmd));
-#endif
-		newcn = (cmd <= ft->pcn) ? ft->pcn - cmd : ft->pcn + cmd;
-		async_state = 1;
-		i = 0;
-		if (out_fdc(fdcu, NE7CMD_SEEK) < 0) i = 1;
-		if (!i && out_fdc(fdcu, ftu) < 0) i = 1;
-		if (!i && out_fdc(fdcu, newcn) < 0) i = 1;
-		if (i) {
-			if (++async_retries >= 10) {
-				DPRT(("ft%d: async_cmd command seek failed!!\n", ftu));
-				goto complete;
-			}
-			DPRT(("ft%d: async_cmd command seek retry...\n",ftu));
-			async_state = 0;
-			goto restate;
-		}
-		break;
-	    case 1:
-		out_fdc(fdcu, NE7CMD_SENSEI);
-		st0 = in_fdc(fdcu);
-		pcn = in_fdc(fdcu);
-		if (st0 < 0 || pcn < 0 || newcn != pcn) {
-			if (++async_retries >= 10) {
-				DPRT(("ft%d: async_cmd seek retries exceeded\n",ftu));
-				goto complete;
-			}
-			DPRT(("ft%d: async_cmd command bad st0=$%02x pcn=$%02x\n",
-							ftu, st0, pcn));
-			async_state = 0;
-			ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/10);
-			break;
-		}
-		if (st0 & 0x20)	{ 	/* seek done */
-			ft->pcn = pcn;
-		}
-#if FTDBGALL
-		 else
-			DPRT(("ft%d: async_seek error st0 = $%02x pcn = %d\n",
-							ftu, st0, pcn));
-#endif
-		if (async_arg1) goto complete;
-		async_state = 2;
-		ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/50);
-		break;
-	    case 2:
-		goto complete;
-		/* NOTREACHED */
-	}
-	break;
-
-     case ACMD_STATUS:
-	/*
-	 *  Arguments:
-	 *     0 - command to issue report from
-	 *     1 - number of bits
-	 *  modifies: bitn, retval, st3
-	 */
-	switch (async_state) {
-	    case 0:
-		bitn = 0;
-		retval = 0;
-		cmd = async_arg0;
-		nbits = async_arg1;
-		DPRT(("async_status got cmd = %d nbits = %d\n", cmd,nbits));
-		CALL_ACMD(5, ACMD_SEEK, QC_NEXTBIT, 0, 0);
-		/* NOTREACHED */
-	    case 1:
-		out_fdc(fdcu, NE7CMD_SENSED);
-		out_fdc(fdcu, ftu);
-		st3 = in_fdc(fdcu);
-		if (st3 < 0) {
-		DPRT(("ft%d: async_status timed out on bit %d r=$%02x\n",
-					ftu,bitn,retval));
-			async_ret = -1;
-			goto complete;
-		}
-		if ((st3 & 0x10) != 0) retval |= (1 << bitn);
-		bitn++;
-		if (bitn >= (nbits+2)) {
-			if ((retval & 1) && (retval & (1 << (nbits+1)))) {
-				async_ret = (retval & ~(1<<(nbits+1))) >> 1;
-				if (async_arg0 == QC_STATUS && async_arg2 == 0 &&
-				   (async_ret & (QS_ERROR|QS_NEWCART))) {
-					async_state = 2;
-					goto restate;
-				}
-			DPRT(("async status got $%04x ($%04x)\n", async_ret,retval));
-			} else {
-				DPRT(("ft%d: async_status failed: retval=$%04x nbits=%d\n",
-						ftu, retval,nbits));
-				async_ret = -2;
-			}
-			goto complete;
-		}
-		CALL_ACMD(1, ACMD_SEEK, QC_NEXTBIT, 0, 0);
-		/* NOTREACHED */
-	    case 2:
-		if (async_ret & QS_NEWCART) ft->newcart = 1;
-		CALL_ACMD(3, ACMD_STATUS, QC_ERRCODE, 16, 1);
-	    case 3:
-		ft->lasterr = async_ret;
-		if ((ft->lasterr & QS_NEWCART) == 0 && ft->lasterr) {
-			DPRT(("ft%d: QIC error %d occurred on cmd %d\n",
-				ftu, ft->lasterr & 0xff, ft->lasterr >> 8));
-		}
-	        cmd = async_arg0;
-		nbits = async_arg1;
-		CALL_ACMD(4, ACMD_STATUS, QC_STATUS, 8, 1);
-	    case 4:
-		goto complete;
-	    case 5:
-		CALL_ACMD(6, ACMD_SEEK, QC_NEXTBIT, 0, 0);
-	    case 6:
-		CALL_ACMD(7, ACMD_SEEK, QC_NEXTBIT, 0, 0);
-	    case 7:
-		CALL_ACMD(8, ACMD_SEEK, QC_NEXTBIT, 0, 0);
-	    case 8:
-		cmd = async_arg0;
-		CALL_ACMD(1, ACMD_SEEK, cmd, 0, 0);
-	}
-	break;
-
-     case ACMD_STATE:
-	/*
-	 *  Arguments:
-	 *     0 - status bits to check
-	 */
-	switch(async_state) {
-	    case 0:
-		CALL_ACMD(1, ACMD_STATUS, QC_STATUS, 8, 0);
-	    case 1:
-		if ((async_ret & async_arg0) != 0) goto complete;
-		async_state = 0;
-		if (++async_retries == 360) {	/* 90 secs. */
-			DPRT(("ft%d: acmd_state exceeded retry count\n", ftu));
-			goto complete;
-		}
-		ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/4);
-		break;
-	}
-	break;
-
-     case ACMD_SEEKSTS:
-	/*
-	 *  Arguments:
-	 *     0 - command to perform
-	 *     1 - status bits to check
-	 *     2 - (optional) seconds to wait until completion
-	 */
-	switch(async_state) {
-	    case 0:
-		cmd = async_arg0;
-		async_retries = (async_arg2) ? (async_arg2 * 4) : 10;
-		CALL_ACMD(1, ACMD_SEEK, cmd, 0, 0);
-	    case 1:
-		CALL_ACMD(2, ACMD_STATUS, QC_STATUS, 8, 0);
-	    case 2:
-		if ((async_ret & async_arg1) != 0) goto complete;
-		if (--async_retries == 0) {
-			DPRT(("ft%d: acmd_seeksts retries exceeded\n", ftu));
-			goto complete;
-		}
-		async_state = 1;
-		ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/4);
-		break;
-	}
-	break;
-
-     case ACMD_READID:
-	/*
-	 *  Arguments: (none)
-	 */
-	switch(async_state) {
-	    case 0:
-		if (!ft->moving) {
-			CALL_ACMD(4, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-			/* NOTREACHED */
-		}
-		async_state = 1;
-		out_fdc(fdcu, 0x4a);		/* READ_ID */
-		out_fdc(fdcu, ftu);
-		break;
-	    case 1:
-		for (i = 0; i < 7; i++) ft->rid[i] = in_fdc(fdcu);
-		async_ret = (ft->rid[3]*ftg->g_fdtrk) +
-			    (ft->rid[4]*ftg->g_fdside) + ft->rid[5] - 1;
-		DPRT(("readid st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d\n",
-			ft->rid[0], ft->rid[1], ft->rid[2], ft->rid[3],
-			ft->rid[4], ft->rid[5], async_ret));
-		if ((ft->rid[0] & 0xc0) != 0 || async_ret < 0) {
-			/*
-			 *  Method for retry:
-			 *    errcnt == 1 regular retry
-			 *		2 microstep head 1
-			 * 		3 microstep head 2
-			 *		4 microstep head back to 0
-			 *		5 fail
-			 */
-			if (++errcnt >= 5) {
-				DPRT(("ft%d: acmd_readid errcnt exceeded\n", fdcu));
-				async_ret = -2;
-				errcnt = 0;
-				goto complete;
-			}
-			if (errcnt == 1) {
-				ft->moving = 0;
-				CALL_ACMD(4, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-			} else {
-				ft->moving = 0;
-				CALL_ACMD(4, ACMD_SEEKSTS, QC_STPAUSE, QS_READY, 0);
-			}
-			DPRT(("readid retry %d...\n", errcnt));
-			async_state = 0;
-			goto restate;
-		}
-		if ((async_ret % ftg->g_blktrk) == (ftg->g_blktrk-1)) {
-			DPRT(("acmd_readid detected last block on track\n"));
-			retpos = async_ret;
-			CALL_ACMD(2, ACMD_STATE, QS_BOT|QS_EOT, 0, 0);
-			/* NOTREACHED */
-		}
-		ft->lastpos = async_ret;
-		errcnt = 0;
-		goto complete;
-		/* NOTREACHED */
-	    case 2:
-		CALL_ACMD(3, ACMD_STATE, QS_READY, 0, 0);
-	    case 3:
-		ft->moving = 0;
-		async_ret = retpos+1;
-		goto complete;
-	    case 4:
-		CALL_ACMD(5, ACMD_SEEK, QC_FORWARD, 0, 0);
-	    case 5:
-		ft->moving = 1;
-		async_state = 0;
-		ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/10); /* XXX */
-		break;
-	}
-	break;
-
-     case ACMD_RUNBLK:
-	/*
-	 *  Arguments:
-	 *     0 - block number I/O will be performed on
-	 *
-	 *  modifies: curpos
-	 */
-	switch (async_state) {
-	    case 0:
-		wanttrk = async_arg0 / ftg->g_blktrk;
-		wantblk = async_arg0 % ftg->g_blktrk;
-		wantdir = wanttrk & 1;
-		ft->moving = 0;
-		CALL_ACMD(1, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-	    case 1:
-		curtrk = wanttrk;
-		curdir = curtrk & 1;
-		DPRT(("Changing to track %d\n", wanttrk));
-		CALL_ACMD(2, ACMD_SEEK, QC_SEEKTRACK, 0, 0);
-	    case 2:
-		cmd = wanttrk+2;
-		CALL_ACMD(3, ACMD_SEEKSTS, cmd, QS_READY, 0);
-	    case 3:
-		CALL_ACMD(4, ACMD_STATUS, QC_STATUS, 8, 0);
-	    case 4:
-		ft->laststs = async_ret;
-		if (wantblk == 0) {
-			curblk = 0;
-			cmd = (wantdir) ? QC_SEEKEND : QC_SEEKSTART;
-			CALL_ACMD(6, ACMD_SEEKSTS, cmd, QS_READY, 90);
-		}
-		if (ft->laststs & QS_BOT) {
-			DPRT(("Tape is at BOT\n"));
-			curblk = (wantdir) ? 4800 : 0;
-			async_state = 6;
-			goto restate;
-		}
-		if (ft->laststs & QS_EOT) {
-			DPRT(("Tape is at EOT\n"));
-			curblk = (wantdir) ? 0 : 4800;
-			async_state = 6;
-			goto restate;
-		}
-		CALL_ACMD(5, ACMD_READID, 0, 0, 0);
-	    case 5:
-		if (async_ret < 0) {
-			ft->moving = 0;
-			ft->lastpos = -2;
-			if (async_ret == -2) {
-				CALL_ACMD(9, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-			}
-			CALL_ACMD(1, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-		}
-		curtrk = (async_ret+1) / ftg->g_blktrk;
-		curblk = (async_ret+1) % ftg->g_blktrk;
-		DPRT(("gotid: curtrk=%d wanttrk=%d curblk=%d wantblk=%d\n",
-			curtrk, wanttrk, curblk, wantblk));
-		if (curtrk != wanttrk) {	/* oops! */
-			DPRT(("oops!! wrong track!\n"));
-			CALL_ACMD(1, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-		}
-		async_state = 6;
-		goto restate;
-	    case 6:
-		DPRT(("curtrk = %d nextblk = %d\n", curtrk, curblk));
-		if (curblk == wantblk) {
-			ft->lastpos = curblk - 1;
-			async_ret = ft->lastpos;
-			if (ft->moving) goto complete;
-			CALL_ACMD(7, ACMD_STATE, QS_READY, 0, 0);
-		}
-		if (curblk > wantblk) {		/* passed it */
-			ft->moving = 0;
-			CALL_ACMD(10, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-		}
-		if ((wantblk - curblk) <= 256) {	/* approaching it */
-			CALL_ACMD(5, ACMD_READID, 0, 0, 0);
-		}
-		/* way up ahead */
-		ft->moving = 0;
-		CALL_ACMD(14, ACMD_SEEKSTS, QC_STOP, QS_READY, 0);
-		break;
-	    case 7:
-		ft->moving = 1;
-		CALL_ACMD(8, ACMD_SEEK, QC_FORWARD, 0, 0);
-		break;
-	    case 8:
-		async_state = 9;
-		ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/10);  /* XXX */
-		break;
-	    case 9:
-		goto complete;
-	    case 10:
-		curdiff = ((curblk - wantblk) / QCV_BLKSEG) + 2;
-		if (curdiff >= ftg->g_segtrk) curdiff = ftg->g_segtrk - 1;
-		DPRT(("pos %d past %d, reverse %d\n", curblk, wantblk, curdiff));
-		CALL_ACMD(11, ACMD_SEEK, QC_SEEKREV, 0, 0);
-	    case 11:
-		DPRT(("reverse 1 done\n"));
-		CALL_ACMD(12, ACMD_SEEK, (curdiff & 0xf)+2, 0, 0);
-	    case 12:
-		DPRT(("reverse 2 done\n"));
-		CALL_ACMD(13, ACMD_SEEKSTS, ((curdiff>>4)&0xf)+2, QS_READY, 90);
-	    case 13:
-		CALL_ACMD(5, ACMD_READID, 0, 0, 0);
-	    case 14:
-		curdiff = ((wantblk - curblk) / QCV_BLKSEG) - 2;
-		if (curdiff < 0) curdiff = 0;
-		DPRT(("pos %d before %d, forward %d\n", curblk, wantblk, curdiff));
-		CALL_ACMD(15, ACMD_SEEK, QC_SEEKFWD, 0, 0);
-	    case 15:
-		DPRT(("forward 1 done\n"));
-		CALL_ACMD(16, ACMD_SEEK, (curdiff & 0xf)+2, 0, 0);
-	    case 16:
-		DPRT(("forward 2 done\n"));
-		CALL_ACMD(13, ACMD_SEEKSTS, ((curdiff>>4)&0xf)+2, QS_READY, 90);
-	}
-	break;
-  }
-
-  return;
-
-complete:
-  if (astk_ptr != &astk[0]) {
-	astk_ptr--;
-	async_retries = astk_ptr->over_retries;
-	async_func = astk_ptr->over_func;
-	async_state = astk_ptr->over_state;
-	async_arg0 = astk_ptr->over_arg0;
-	async_arg1 = astk_ptr->over_arg1;
-	async_arg2 = astk_ptr->over_arg2;
-	goto restate;
-  }
-  async_func = ACMD_NONE;
-  async_state = 0;
-  switch (ft->io_sts) {
-     case FTIO_READY:
-	async_req(ftu, 2);
-	break;
-     case FTIO_READING:
-     case FTIO_RDAHEAD:
-	async_read(ftu, 2);
-	break;
-     case FTIO_WRITING:
-	async_write(ftu, 2);
-	break;
-     default:
-	DPRT(("ft%d: bad async_cmd ending I/O state!\n", ftu));
-	break;
-  }
-}
-
-
-/*
- *  Entry point for the async request processor.
- */
-static void
-async_req(ftu_t ftu, int from)
-{
-  ft_p	ft = ft_data[ftu];
-  SegReq *sp;
-  static int over_async, lastreq;
-  int cmd;
-
-  if (from == 2) arq_state = over_async;
-
-restate:
-  switch (arq_state) {
-     case 0:	/* Process segment */
-	sp = ft->segh;
-	ft->io_sts = (sp == NULL) ? FTIO_READY : sp->reqtype;
-
-	if (ft->io_sts == FTIO_WRITING)
-		async_write(ftu, from);
-	else
-		async_read(ftu, from);
-	if (ft->io_sts != FTIO_READY) return;
-
-	/* Pull buffer from current I/O queue */
-	if (sp != NULL) {
-		lastreq = sp->reqtype;
-		segio_done(ft, sp);
-
-		/* If I/O cancelled, clear finished queue. */
-		if (sp->reqcan) {
-			while (ft->doneh != NULL)
-				segio_free(ft, ft->doneh);
-			lastreq = FTIO_READY;
-		}
-	} else
-		lastreq = FTIO_READY;
-
-	/* Detect end of track */
-	if (((ft->xblk / QCV_BLKSEG) % ftg->g_segtrk) == 0) {
-		ACMD_FUNC(2, ACMD_STATE, QS_BOT|QS_EOT, 0, 0);
-	}
-	arq_state = 1;
-	goto restate;
-
-     case 1:	/* Next request */
-	/* If we have another request queued, start it running. */
-	if (ft->segh != NULL) {
-		sp = ft->segh;
-		sp->reqcrc = 0;
-		arq_state = ard_state = awr_state = 0;
-		ft->xblk = sp->reqblk;
-		ft->xseg = sp->reqseg;
-		ft->xcnt = 0;
-		ft->xptr = sp->buff;
-		DPRT(("I/O reqblk = %d\n", ft->xblk));
-		goto restate;
-	}
-
-	/* If the last request was reading, do read ahead. */
-	if ((lastreq == FTIO_READING || lastreq == FTIO_RDAHEAD) &&
-					(sp = segio_alloc(ft)) != NULL) {
-		sp->reqtype = FTIO_RDAHEAD;
-		sp->reqblk = ft->xblk;
-		sp->reqseg = ft->xseg+1;
-		sp->reqcrc = 0;
-		sp->reqcan = 0;
-		segio_queue(ft, sp);
-		bzero(sp->buff, QCV_SEGSIZE);
-		arq_state = ard_state = awr_state = 0;
-		ft->xblk = sp->reqblk;
-		ft->xseg = sp->reqseg;
-		ft->xcnt = 0;
-		ft->xptr = sp->buff;
-		DPRT(("Processing readahead reqblk = %d\n", ft->xblk));
-		goto restate;
-	}
-
-	if (ft->moving) {
-		DPRT(("No more I/O.. Stopping.\n"));
-		ft->moving = 0;
-		ACMD_FUNC(7, ACMD_SEEKSTS, QC_PAUSE, QS_READY, 0);
-		break;
-	}
-	arq_state = 7;
-	goto restate;
-
-     case 2:	/* End of track */
-	ft->moving = 0;
-	ACMD_FUNC(3, ACMD_STATE, QS_READY, 0, 0);
-	break;
-
-     case 3:
-	DPRT(("async_req seek head to track %d\n", ft->xblk / ftg->g_blktrk));
-	ACMD_FUNC(4, ACMD_SEEK, QC_SEEKTRACK, 0, 0);
-	break;
-
-     case 4:
-	cmd = (ft->xblk / ftg->g_blktrk) + 2;
-	if (ft->segh != NULL) {
-		ACMD_FUNC(5, ACMD_SEEKSTS, cmd, QS_READY, 0);
-	} else {
-		ACMD_FUNC(7, ACMD_SEEKSTS, cmd, QS_READY, 0);
-	}
-	break;
-
-     case 5:
-	ft->moving = 1;
-	ACMD_FUNC(6, ACMD_SEEK, QC_FORWARD, 0, 0);
-	break;
-
-     case 6:
-	arq_state = 1;
-	ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/10); /* XXX */
-	break;
-
-     case 7:
-	/* Time to rest. */
-	ft->active = 0;
-	ft->lastpos = -2;
-
-	/* wakeup those who want an i/o chg */
-	wakeup((caddr_t)wc_iosts_change);
-	break;
-  }
-}
-
-
-/*
- *  Entry for async read.
- */
-static void
-async_read(ftu_t ftu, int from)
-{
-  ft_p ft = ft_data[ftu];
-  fdcu_t fdcu = ft->fdc->fdcu;		/* fdc active unit */
-  int i, rddta[7];
-  int where;
-  static int over_async;
-  static int retries = 0;
-
-  if (from == 2) ard_state = over_async;
-
-restate:
-#if FTDBGALL
-  DPRT(("async_read: state: %d  from = %d\n", ard_state, from));
-#endif
-  switch (ard_state) {
-     case 0:	/* Start off */
-	/* If tape is not at desired position, stop and locate */
-	if (ft->lastpos != (ft->xblk-1)) {
-		DPRT(("ft%d: position unknown: lastpos:%d ft->xblk:%d\n",
-			ftu, ft->lastpos, ft->xblk));
-		ACMD_FUNC(1, ACMD_RUNBLK, ft->xblk, 0, 0);
-	}
-
-	/* Tape is in position but stopped. */
-	if (!ft->moving) {
-		DPRT(("async_read ******STARTING TAPE\n"));
-		ACMD_FUNC(3, ACMD_STATE, QS_READY, 0, 0);
-	}
-	ard_state = 1;
-	goto restate;
-
-     case 1:	/* Start DMA */
-	/* Tape is now moving and in position-- start DMA now! */
-	isa_dmastart(B_READ, ft->xptr, QCV_BLKSIZE, 2);
-	out_fdc(fdcu, 0x66);				/* read */
-	out_fdc(fdcu, ftu);				/* unit */
-	out_fdc(fdcu, (ft->xblk % ftg->g_fdside) / ftg->g_fdtrk); 	/* cylinder */
-	out_fdc(fdcu, ft->xblk / ftg->g_fdside);		/* head */
-	out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1);	/* sector */
-	out_fdc(fdcu, 0x03);				/* 1K sectors */
-	out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1);	/* count */
-	out_fdc(fdcu, 0x74);				/* gap length */
-	out_fdc(fdcu, 0xff);				/* transfer size */
-	ard_state = 2;
-	break;
-
-     case 2:	/* DMA completed */
-	/* Transfer complete, get status */
-	for (i = 0; i < 7; i++) rddta[i] = in_fdc(fdcu);
-	isa_dmadone(B_READ, ft->xptr, QCV_BLKSIZE, 2);
-
-#if FTDBGALL
-	/* Compute where the controller thinks we are */
-	where = (rddta[3]*ftg->g_fdtrk) + (rddta[4]*ftg->g_fdside)
-			+ rddta[5]-1;
-	DPRT(("xfer done: st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d want:%d\n",
-	    rddta[0], rddta[1], rddta[2], rddta[3], rddta[4], rddta[5],
-	    where, ft->xblk));
-#endif
-
-	/* Check for errors */
-	if ((rddta[0] & 0xc0) != 0x00) {
-#if !FTDBGALL
-		where = (rddta[3]*ftg->g_fdtrk) + (rddta[4]*ftg->g_fdside)
-			+ rddta[5]-1;
-		DPRT(("xd: st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d want:%d\n",
-		    rddta[0], rddta[1], rddta[2], rddta[3], rddta[4], rddta[5],
-		    where, ft->xblk));
-#endif
-		if ((rddta[1] & 0x04) == 0x04 && retries < 2) {
-			/* Probably wrong position */
-			DPRT(("async_read: doing retry %d\n", retries));
-			ft->lastpos = ft->xblk;
-			ard_state = 0;
-			retries++;
-			goto restate;
-		} else {
-			/* CRC/Address-mark/Data-mark, et. al. */
-			DPRT(("ft%d: CRC error on block %d\n", fdcu, ft->xblk));
-			ft->segh->reqcrc |= (1 << ft->xcnt);
-		}
-	}
-
-	/* Otherwise, transfer completed okay. */
-	retries = 0;
-	ft->lastpos = ft->xblk;
-	ft->xblk++;
-	ft->xcnt++;
-	ft->xptr += QCV_BLKSIZE;
-	if (ft->xcnt < QCV_BLKSEG && ft->segh->reqcan == 0) {
-		ard_state = 0;
-		goto restate;
-	}
-	DPRT(("Read done..  Cancel = %d\n", ft->segh->reqcan));
-	ft->io_sts = FTIO_READY;
-	break;
-
-     case 3:
-	ft->moving = 1;
-	ACMD_FUNC(4, ACMD_SEEK, QC_FORWARD, 0, 0);
-	break;
-
-     case 4:
-	ard_state = 1;
-	ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/10);  /* XXX */
-	break;
-
-     default:
-	DPRT(("ft%d: bad async_read state %d!!\n", ftu, ard_state));
-	break;
-  }
-}
-
-
-/*
- *  Entry for async write.  If from is 0, this came from the interrupt
- *  routine, if it's 1 then it was a timeout, if it's 2, then an
- *  async_cmd completed.
- */
-static void
-async_write(ftu_t ftu, int from)
-{
-  ft_p ft = ft_data[ftu];
-  fdcu_t fdcu = ft->fdc->fdcu;		/* fdc active unit */
-  int i, rddta[7];
-  int where;
-  static int over_async;
-  static int retries = 0;
-
-  if (from == 2) awr_state = over_async;
-
-restate:
-#if FTDBGALL
-  DPRT(("async_write: state: %d  from = %d\n", awr_state, from));
-#endif
-  switch (awr_state) {
-     case 0:	/* Start off */
-	/* If tape is not at desired position, stop and locate */
-	if (ft->lastpos != (ft->xblk-1)) {
-		DPRT(("ft%d: position unknown: lastpos:%d ft->xblk:%d\n",
-			ftu, ft->lastpos, ft->xblk));
-		ACMD_FUNC(1, ACMD_RUNBLK, ft->xblk, 0, 0);
-	}
-
-	/* Tape is in position but stopped. */
-	if (!ft->moving) {
-		DPRT(("async_write ******STARTING TAPE\n"));
-		ACMD_FUNC(3, ACMD_STATE, QS_READY, 0, 0);
-	}
-	awr_state = 1;
-	goto restate;
-
-     case 1:	/* Start DMA */
-	/* Tape is now moving and in position-- start DMA now! */
-	isa_dmastart(B_WRITE, ft->xptr, QCV_BLKSIZE, 2);
-	out_fdc(fdcu, 0x45);				/* write */
-	out_fdc(fdcu, ftu);				/* unit */
-	out_fdc(fdcu, (ft->xblk % ftg->g_fdside) / ftg->g_fdtrk); /* cyl */
-	out_fdc(fdcu, ft->xblk / ftg->g_fdside);		/* head */
-	out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1);	/* sector */
-	out_fdc(fdcu, 0x03);				/* 1K sectors */
-	out_fdc(fdcu, (ft->xblk % ftg->g_fdtrk) + 1);	/* count */
-	out_fdc(fdcu, 0x74);				/* gap length */
-	out_fdc(fdcu, 0xff);				/* transfer size */
-	awr_state = 2;
-	break;
-
-     case 2:	/* DMA completed */
-	/* Transfer complete, get status */
-	for (i = 0; i < 7; i++) rddta[i] = in_fdc(fdcu);
-	isa_dmadone(B_WRITE, ft->xptr, QCV_BLKSIZE, 2);
-
-#if FTDBGALL
-	/* Compute where the controller thinks we are */
-	where = (rddta[3]*ftg->g_fdtrk) + (rddta[4]*ftg->g_fdside) + rddta[5]-1;
-	DPRT(("xfer done: st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d want:%d\n",
-	    rddta[0], rddta[1], rddta[2], rddta[3], rddta[4], rddta[5],
-	    where, ft->xblk));
-#endif
-
-	/* Check for errors */
-	if ((rddta[0] & 0xc0) != 0x00) {
-#if !FTDBGALL
-		where = (rddta[3]*ftg->g_fdtrk) + (rddta[4]*ftg->g_fdside)
-			 + rddta[5]-1;
-		DPRT(("xfer done: st0:%02x st1:%02x st2:%02x c:%d h:%d s:%d pos:%d want:%d\n",
-		    rddta[0], rddta[1], rddta[2], rddta[3], rddta[4], rddta[5],
-		    where, ft->xblk));
-#endif
-		if (retries < 3) {
-			/* Something happened -- try again */
-			DPRT(("async_write: doing retry %d\n", retries));
-			ft->lastpos = ft->xblk;
-			awr_state = 0;
-			retries++;
-			goto restate;
-		} else {
-			/*
-			 *  Retries failed.  Note the unrecoverable error.
-			 *  Marking the block as bad is useless right now.
-			 */
-			printf("ft%d: unrecoverable write error on block %d\n",
-					ftu, ft->xblk);
-			ft->segh->reqcrc |= (1 << ft->xcnt);
-		}
-	}
-
-	/* Otherwise, transfer completed okay. */
-	retries = 0;
-	ft->lastpos = ft->xblk;
-	ft->xblk++;
-	ft->xcnt++;
-	ft->xptr += QCV_BLKSIZE;
-	if (ft->xcnt < QCV_BLKSEG) {
-		awr_state = 0;	/* next block */
-		goto restate;
-	}
-#if FTDBGALL
-	DPRT(("Write done.\n"));
-#endif
-	ft->io_sts = FTIO_READY;
-	break;
-
-     case 3:
-	ft->moving = 1;
-	ACMD_FUNC(4, ACMD_SEEK, QC_FORWARD, 0, 0);
-	break;
-
-     case 4:
-	awr_state = 1;
-	ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, hz/10); /* XXX */
-	break;
-
-     default:
-	DPRT(("ft%d: bad async_write state %d!!\n", ftu, awr_state));
-	break;
-  }
-}
-
-
-/*
- *  Interrupt handler for active tape.  Bounced off of fdintr().
- */
-int
-ftintr(ftu_t ftu)
-{
-  int st0, pcn, i;
-  ft_p	ft = ft_data[ftu];
-  fdcu_t fdcu = ft->fdc->fdcu;		/* fdc active unit */
-  int s = splbio();
-
-  st0 = 0;
-  pcn = 0;
-
-  /* I/O segment transfer completed */
-  if (ft->active) {
-	if (async_func != ACMD_NONE) {
-		async_cmd(ftu);
-		splx(s);
-		return(1);
-	}
-#if FTDBGALL
-	DPRT(("Got request interrupt\n"));
-#endif
-	async_req(ftu, 0);
-	splx(s);
-	return(1);
-  }
-
-  /* Get interrupt status */
-  if (ft->cmd_wait != FTCMD_READID) {
-	out_fdc(fdcu, NE7CMD_SENSEI);
-	st0 = in_fdc(fdcu);
-	pcn = in_fdc(fdcu);
-  }
-
-  if (ft->cmd_wait == FTCMD_NONE || ft->sts_wait != FTSTS_SNOOZE) {
-huh_what:
-	printf("ft%d: unexpected interrupt; st0 = $%02x pcn = %d\n",
-				ftu, st0, pcn);
-	splx(s);
-	return(1);
-  }
-
-  switch (ft->cmd_wait) {
-     case FTCMD_RESET:
-	ft->sts_wait = FTSTS_INTERRUPT;
-	wakeup((caddr_t)wc_intr_wait);
-	break;
-     case FTCMD_RECAL:
-     case FTCMD_SEEK:
-	if (st0 & 0x20)	{ 	/* seek done */
-		ft->sts_wait = FTSTS_INTERRUPT;
-		ft->pcn = pcn;
-		wakeup((caddr_t)wc_intr_wait);
-	}
-#if FTDBGALL
-	else
-		DPRT(("ft%d: seek error st0 = $%02x pcn = %d\n",
-						ftu, st0, pcn));
-#endif
-	break;
-     case FTCMD_READID:
-	for (i = 0; i < 7; i++) ft->rid[i] = in_fdc(fdcu);
-	ft->sts_wait = FTSTS_INTERRUPT;
-	wakeup((caddr_t)wc_intr_wait);
-	break;
-
-     default:
-	goto huh_what;
-  }
-
-  splx(s);
-  return(1);
-}
-
-
-/*
- *  Interrupt timeout routine.
- */
-static void
-ft_timeout(void *arg1)
-{
-  int s;
-  ftu_t ftu = (ftu_t)arg1;
-  ft_p	ft = ft_data[ftu];
-
-  s = splbio();
-  if (ft->active) {
-	if (async_func != ACMD_NONE) {
-		async_cmd(ftu);
-		splx(s);
-		return;
-	}
-	async_req(ftu, 1);
-  } else {
-	  ft->sts_wait = FTSTS_TIMEOUT;
-	  wakeup((caddr_t)wc_intr_wait);
-  }
-  splx(s);
-}
-
-
-/*
- *  Wait for a particular interrupt to occur.  ftintr() will wake us up
- *  if it sees what we want.  Otherwise, time out and return error.
- *  Should always disable ints before trigger is sent and calling here.
- */
-static int
-ftintr_wait(ftu_t ftu, int cmd, int ticks)
-{
-  int retries, st0, pcn;
-  ft_p	ft = ft_data[ftu];
-  fdcu_t fdcu = ft->fdc->fdcu;		/* fdc active unit */
-
-  ft->cmd_wait = cmd;
-  ft->sts_wait = FTSTS_SNOOZE;
-
-  /* At attach time, we can't rely on having interrupts serviced */
-  if (ft->attaching) {
-	switch (cmd) {
-	    case FTCMD_RESET:
-		DELAY(100);
-		ft->sts_wait = FTSTS_INTERRUPT;
-		goto intrdone;
-	    case FTCMD_RECAL:
-	    case FTCMD_SEEK:
-		for (retries = 0; retries < 10000; retries++) {
-			DELAY(150);
-			out_fdc(fdcu, NE7CMD_SENSEI);
-			st0 = in_fdc(fdcu);
-			if ((st0 & 0xc0) == 0x80) continue;
-			pcn = in_fdc(fdcu);
-			if (st0 & 0x20) {
-				ft->sts_wait = FTSTS_INTERRUPT;
-				ft->pcn = pcn;
-				goto intrdone;
-			}
-		}
-		break;
-	}
-	ft->sts_wait = FTSTS_TIMEOUT;
-	goto intrdone;
-  }
-
-  ftsleep(wc_intr_wait, ticks);
-
-intrdone:
-  if (ft->sts_wait == FTSTS_TIMEOUT) {	/* timeout */
-#if FTDBGALL
-	if (ft->cmd_wait != FTCMD_RESET)
-		DPRT(("ft%d: timeout on command %d\n", ftu, ft->cmd_wait));
-#endif
-	ft->cmd_wait = FTCMD_NONE;
-	ft->sts_wait = FTSTS_NONE;
-	return(1);
-  }
-
-  /* got interrupt */
-  if (ft->attaching == 0 && ticks)
-	untimeout(ft_timeout, (caddr_t)ftu, ft->tohandle);
-  ft->cmd_wait = FTCMD_NONE;
-  ft->sts_wait = FTSTS_NONE;
-  return(0);
-}
-
-
-/*
- *  Recalibrate tape drive.  Parameter totape is true, if we should
- *  recalibrate to tape drive settings.
- */
-static int
-tape_recal(ftu_t ftu, int totape)
-{
-  int s;
-  ft_p	ft = ft_data[ftu];
-  fdcu_t fdcu = ft->fdc->fdcu;		/* fdc active unit */
-
-  DPRT(("tape_recal start\n"));
-
-#ifdef PC98
-  outb(0xbe, FDP_FDDEXC | FDP_PORTEXC);
-#endif
-  out_fdc(fdcu, NE7CMD_SPECIFY);
-#ifdef PC98
-  out_fdc(fdcu, (totape) ? 0xEF : 0xCF);
-  out_fdc(fdcu, 0x02);
-#else
-  out_fdc(fdcu, (totape) ? 0xAD : 0xDF);
-  out_fdc(fdcu, 0x02);
-#endif
-
-  s = splbio();
-  out_fdc(fdcu, NE7CMD_RECAL);
-  out_fdc(fdcu, ftu);
-
-  if (ftintr_wait(ftu, FTCMD_RECAL, hz)) {
-	splx(s);
-	DPRT(("ft%d: recalibrate timeout\n", ftu));
-	return(1);
-  }
-  splx(s);
-
-  out_fdc(fdcu, NE7CMD_SPECIFY);
-#ifdef PC98
-  out_fdc(fdcu, (totape) ? 0xEF : 0xCF);
-  out_fdc(fdcu, 0x02);
-#else
-  out_fdc(fdcu, (totape) ? 0xFD : 0xDF);
-  out_fdc(fdcu, 0x02);
-#endif
-
-  DPRT(("tape_recal end\n"));
-  return(0);
-}
-
-/*
- *  Wait for a particular tape status to be met.  If all is TRUE, then
- *  all states must be met, otherwise any state can be met.
- */
-static int
-tape_state(ftu_t ftu, int all, int mask, int seconds)
-{
-  int r, tries, maxtries;
-
-  maxtries = (seconds) ? (4 * seconds) : 1;
-  for (tries = 0; tries < maxtries; tries++) {
-	r = tape_status(ftu);
-	if (r >= 0) {
-		if (all && (r & mask) == mask) return(r);
-		if ((r & mask) != 0) return(r);
-	}
-	if (seconds) ftsleep(wc_long_delay, hz/4);
-  }
-  DPRT(("ft%d: tape_state failed on mask=$%02x maxtries=%d\n",
-				ftu, mask, maxtries));
-  return(-1);
-}
-
-
-/*
- *  Send a QIC command to tape drive, wait for completion.
- */
-static int
-tape_cmd(ftu_t ftu, int cmd)
-{
-  int newcn;
-  int retries = 0;
-  int s;
-  ft_p	ft = ft_data[ftu];
-  fdcu_t fdcu = ft->fdc->fdcu;		/* fdc active unit */
-
-  DPRT(("===> tape_cmd: %d\n",cmd));
-  newcn = (cmd <= ft->pcn) ? ft->pcn - cmd : ft->pcn + cmd;
-
-retry:
-
-  /* Perform seek */
-  s = splbio();
-  out_fdc(fdcu, NE7CMD_SEEK);
-  out_fdc(fdcu, ftu);
-  out_fdc(fdcu, newcn);
-
-  if (ftintr_wait(ftu, FTCMD_SEEK, hz)) {
-	DPRT(("ft%d: tape_cmd seek timeout\n", ftu));
-redo:
-	splx(s);
-	if (++retries < 5) goto retry;
-	DPRT(("ft%d: tape_cmd seek failed!\n", ftu));
-	return(1);
-  }
-  splx(s);
-
-  if (ft->pcn != newcn) {
-	DPRT(("ft%d: bad seek in tape_cmd; pcn = %d  newcn = %d\n",
-			ftu, ft->pcn, newcn));
-	goto redo;
-  }
-  DELAY(2500);
-  return(0);
-}
-
-
-/*
- *  Return status of tape drive
- */
-static int
-tape_status(ftu_t ftu)
-{
-  int r, err, tries;
-  ft_p ft = ft_data[ftu];
-  int max = (ft->attaching) ? 2 : 3;
-
-  for (r = -1, tries = 0; r < 0 && tries < max; tries++)
-	r = qic_status(ftu, QC_STATUS, 8);
-  if (tries == max) return(-1);
-
-recheck:
-  DPRT(("tape_status got $%04x\n",r));
-  ft->laststs = r;
-
-  if (r & (QS_ERROR|QS_NEWCART)) {
-	err = qic_status(ftu, QC_ERRCODE, 16);
-	ft->lasterr = err;
-	if (r & QS_NEWCART) {
-		ft->newcart = 1;
-		/* If tape not referenced, do a seek load point. */
-		if ((r & QS_FMTOK) == 0 && !ft->attaching) {
-			tape_cmd(ftu, QC_SEEKLP);
-			do {
-				ftsleep(wc_long_delay, hz);
-			} while ((r = qic_status(ftu, QC_STATUS, 8)) < 0 ||
-					(r & (QS_READY|QS_CART)) == QS_CART);
-			goto recheck;
-		}
-	} else if (err && !ft->attaching) {
-		DPRT(("ft%d: QIC error %d occurred on cmd %d\n",
-					ftu, err & 0xff, err >> 8));
-	}
-	r = qic_status(ftu, QC_STATUS, 8);
-	ft->laststs = r;
-	DPRT(("tape_status got error code $%04x new sts = $%02x\n",err,r));
-  }
-
-  ft->rdonly = (r & QS_RDONLY);
-  return(r);
-}
-
-
-/*
- *  Transfer control to tape drive.
- */
-static void
-tape_start(ftu_t ftu, int motor)
-{
-  ft_p	ft = ft_data[ftu];
-  fdc_p	fdc = ft->fdc;
-  int s, mbits;
-#ifndef PC98
-  static int mbmotor[] = { FDO_MOEN0, FDO_MOEN1, FDO_MOEN2, FDO_MOEN3 };
-#endif
-
-  s = splbio();
-  DPRT(("tape_start start\n"));
-
-  /* reset, dma disable */
-#ifdef PC98
-  outb(fdc->baseport+FDOUT, FDO_RST | FDO_FRY | FDO_AIE | FDO_MTON);
-#else
-  outb(fdc->baseport+FDOUT, 0x00);
-#endif
-  (void)ftintr_wait(ftu, FTCMD_RESET, hz/10);
-
-  /* raise reset, enable DMA, motor on if needed */
-#ifdef PC98
-  outb(fdc->baseport+FDOUT, FDO_DMAE | FDO_MTON);
-#else
-  mbits = ftu & 3;
-  if (motor && ftu < 4)
-	mbits |= mbmotor[ftu];
-
-  outb(fdc->baseport+FDOUT, FDO_FRST | FDO_FDMAEN | mbits);
-#endif
-  (void)ftintr_wait(ftu, FTCMD_RESET, hz/10);
-
-  splx(s);
-
-  tape_recal(ftu, 1);
-
-  /* set transfer speed */
-#ifndef PC98
-  outb(fdc->baseport+FDCTL, FDC_500KBPS);
-  DELAY(10);
-#endif
-
-  DPRT(("tape_start end\n"));
-}
-
-
-/*
- *  Transfer control back to floppy disks.
- */
-static void
-tape_end(ftu_t ftu)
-{
-  ft_p	ft = ft_data[ftu];
-  fdc_p	fdc = ft->fdc;
-  int s;
-
-  DPRT(("tape_end start\n"));
-  tape_recal(ftu, 0);
-
-  s = splbio();
-
-  /* reset, dma disable */
-#ifdef PC98
-  outb(fdc->baseport+FDOUT, FDO_RST | FDO_FRY | FDO_AIE | FDO_MTON);
-#else
-  outb(fdc->baseport+FDOUT, 0x00);
-#endif
-  (void)ftintr_wait(ftu, FTCMD_RESET, hz/10);
-
-  /* raise reset, enable DMA */
-#ifdef PC98
-  outb(fdc->baseport+FDOUT, FDO_DMAE | FDO_MTON);
-#else
-  outb(fdc->baseport+FDOUT, FDO_FRST | FDO_FDMAEN);
-#endif
-  (void)ftintr_wait(ftu, FTCMD_RESET, hz/10);
-
-  splx(s);
-
-  /* set transfer speed */
-#ifndef PC98
-  outb(fdc->baseport+FDCTL, FDC_500KBPS);
-  DELAY(10);
-#endif
-  fdc->flags &= ~FDC_TAPE_BUSY;
-
-  DPRT(("tape_end end\n"));
-}
-
-
-/*
- *  Wait for the driver to go inactive, cancel readahead if necessary.
- */
-static void
-tape_inactive(ftu_t ftu)
-{
-  ft_p	ft = ft_data[ftu];
-  int s = splbio();
-
-  if (ft->segh != NULL) {
-	if (ft->segh->reqtype == FTIO_RDAHEAD) {
-		/* cancel read-ahead */
-		ft->segh->reqcan = 1;
-	} else if (ft->segh->reqtype == FTIO_WRITING && !ft->active) {
-		/* flush out any remaining writes */
-		DPRT(("Flushing write I/O chain\n"));
-		arq_state = ard_state = awr_state = 0;
-		ft->xblk = ft->segh->reqblk;
-		ft->xseg = ft->segh->reqseg;
-		ft->xcnt = 0;
-		ft->xptr = ft->segh->buff;
-		ft->active = 1;
-		ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, 1);
-	}
-  }
-  while (ft->active) ftsleep(wc_iosts_change, 0);
-  splx(s);
-}
-
-
-/*
- *  Get the geometry of the tape currently in the drive.
- */
-static int
-ftgetgeom(ftu_t ftu)
-{
-  int r, i, tries;
-  int cfg, qic80, ext;
-  int sts, fmt, len;
-  ft_p	ft = ft_data[ftu];
-
-  r = tape_status(ftu);
-
-  /* XXX fix me when format mode is finished */
-  if (r < 0 || (r & QS_CART) == 0 || (r & QS_FMTOK) == 0) {
-	DPRT(("ftgetgeom: no cart or not formatted 0x%04x\n",r));
-	ftg = NULL;
-	ft->newcart = 1;
-	return(0);
-  }
-
-  /* Report drive configuration */
-  for (cfg = -1, tries = 0; cfg < 0 && tries < 3; tries++)
-	cfg = qic_status(ftu, QC_CONFIG, 8);
-  if (tries == 3) {
-	DPRT(("ftgetgeom report config failed\n"));
-	ftg = NULL;
-	return(-1);
-  }
-  DPRT(("ftgetgeom report config got $%04x\n", cfg));
-  ft->lastcfg = cfg;
-
-  qic80 = cfg & QCF_QIC80;
-  ext = cfg & QCF_EXTRA;
-
-/*
- *  XXX - This doesn't seem to work on my Colorado Jumbo 250...
- *  if it works on your drive, I'd sure like to hear about it.
- */
-#if 0
-  /* Report drive status */
-  for (sts = -1, tries = 0; sts < 0 && tries < 3; tries++)
-	sts = qic_status(ftu, QC_TSTATUS, 8);
-  if (tries == 3) {
-	DPRT(("ftgetgeom report tape status failed\n"));
-	ftg = NULL;
-	return(-1);
-  }
-  DPRT(("ftgetgeom report tape status got $%04x\n", sts));
-#else
-  /*
-   *  XXX - Forge a fake tape status based upon the returned
-   *  configuration, since the above command or code is broken
-   *  for my drive and probably other older drives.
-   */
-  sts = 0;
-  sts = (qic80) ? QTS_QIC80 : QTS_QIC40;
-  sts |= (ext) ? QTS_LEN2 : QTS_LEN1;
-#endif
-
-  fmt = sts & QTS_FMMASK;
-  len = (sts & QTS_LNMASK) >> 4;
-
-  if (fmt > QCV_NFMT) {
-	ftg = NULL;
-	printf("ft%d: unsupported tape format\n", ftu);
-	return(-1);
-  }
-  if (len > QCV_NLEN) {
-	ftg = NULL;
-	printf("ft%d: unsupported tape length\n", ftu);
-	return(-1);
-  }
-
-  /* Look up geometry in the table */
-  for (i = 1; i < NGEOM; i++)
-	if (ftgtbl[i].g_fmtno == fmt && ftgtbl[i].g_lenno == len) break;
-  if (i == NGEOM) {
-	printf("ft%d: unknown tape geometry\n", ftu);
-	ftg = NULL;
-	return(-1);
-  }
-  ftg = &ftgtbl[i];
-  if (!ftg->g_trktape) {
-	printf("ft%d: unsupported format %s w/len %s\n",
-				ftu, ftg->g_fmtdesc, ftg->g_lendesc);
-	ftg = NULL;
-	return(-1);
-  }
-  DPRT(("Tape format is %s, length is %s\n", ftg->g_fmtdesc, ftg->g_lendesc));
-  ft->newcart = 0;
-  return(0);
-}
-
-
-/*
- *  Switch between tape/floppy.  This will send the tape enable/disable
- *  codes for this drive's manufacturer.
- */
-static int
-set_fdcmode(dev_t dev, int newmode)
-{
-  ftu_t ftu = FDUNIT(minor(dev));
-  ft_p	ft = ft_data[ftu];
-  fdc_p	fdc = ft->fdc;
-  static int havebufs = 0;
-  int i;
-  SegReq *sp, *rsp;
-
-  if (newmode == FDC_TAPE_MODE) {
-	/* Wake up the tape drive */
-	switch (ft->type) {
-	    case NO_TYPE:
-		fdc->flags &= ~FDC_TAPE_BUSY;
-		return(ENXIO);
-	    case FT_NONE:
-		tape_start(ftu, 0);
-		break;
-	    case FT_COLORADO:
-		tape_start(ftu, 0);
-		if (tape_cmd(ftu, QC_COL_ENABLE1)) {
-			tape_end(ftu);
-			return(EIO);
-		}
-		if (tape_cmd(ftu, QC_COL_ENABLE2 + ftu)) {
-			tape_end(ftu);
-			return(EIO);
-		}
-		break;
-	    case FT_MOUNTAIN:
-		tape_start(ftu, 0);
-		if (tape_cmd(ftu, QC_MTN_ENABLE1)) {
-			tape_end(ftu);
-			return(EIO);
-		}
-		if (tape_cmd(ftu, QC_MTN_ENABLE2)) {
-			tape_end(ftu);
-			return(EIO);
-		}
-		break;
-	    case FT_INSIGHT:
-		tape_start(ftu, 1);
-		break;
-	    default:
-		DPRT(("ft%d: bad tape type\n", ftu));
-		return(ENXIO);
-	}
-	if (tape_status(ftu) < 0) {
-		if (ft->type == FT_COLORADO)
-			tape_cmd(ftu, QC_COL_DISABLE);
-		else if (ft->type == FT_MOUNTAIN)
-			tape_cmd(ftu, QC_MTN_DISABLE);
-		tape_end(ftu);
-		return(EIO);
-	}
-
-	/* Grab buffers from memory. */
-	if (!havebufs) {
-		ft->segh = ft->segt = NULL;
-		ft->doneh = ft->donet = NULL;
-		ft->segfree = NULL;
-		ft->hdr = NULL;
-		ft->nsegq = ft->ndoneq = ft->nfreelist = 0;
-		for (i = 0; i < FTNBUFF; i++) {
-			sp = malloc(sizeof(SegReq), M_DEVBUF, M_WAITOK);
-			if (sp == NULL) {
-				printf("ft%d: not enough memory for buffers\n", ftu);
-				for (sp=ft->segfree; sp != NULL; sp=sp->next)
-					free(sp, M_DEVBUF);
-				if (ft->type == FT_COLORADO)
-					tape_cmd(ftu, QC_COL_DISABLE);
-				else if (ft->type == FT_MOUNTAIN)
-					tape_cmd(ftu, QC_MTN_DISABLE);
-				tape_end(ftu);
-				return(ENOMEM);
-			}
-			sp->reqtype = FTIO_READY;
-			sp->next = ft->segfree;
-			ft->segfree = sp;
-			ft->nfreelist++;
-		}
-		/* take one buffer for header */
-		ft->hdr = ft->segfree;
-		ft->segfree = ft->segfree->next;
-		ft->nfreelist--;
-		havebufs = 1;
-	}
-	ft->io_sts = FTIO_READY;	/* tape drive is ready */
-	ft->active = 0;			/* interrupt driver not active */
-	ft->moving = 0;			/* tape not moving */
-	ft->rdonly = 0;			/* tape read only */
-	ft->newcart = 0;		/* new cartridge flag */
-	ft->lastpos = -1;		/* tape is rewound */
-	async_func = ACMD_NONE;		/* No async function */
-	tape_state(ftu, 0, QS_READY, 60);
-	tape_cmd(ftu, QC_RATE);
-	tape_cmd(ftu, QCF_RT500+2);		/* 500K bps */
-	tape_state(ftu, 0, QS_READY, 60);
-	ft->mode = FTM_PRIMARY;
-	tape_cmd(ftu, QC_PRIMARY);	/* Make sure we're in primary mode */
-	tape_state(ftu, 0, QS_READY, 60);
-	ftg = NULL;			/* No geometry yet */
-	ftgetgeom(ftu);			/* Get tape geometry */
-	ftreq_rewind(ftu);		/* Make sure tape is rewound */
-  } else {
-	if (ft->type == FT_COLORADO)
-		tape_cmd(ftu, QC_COL_DISABLE);
-	else if (ft->type == FT_MOUNTAIN)
-		tape_cmd(ftu, QC_MTN_DISABLE);
-	tape_end(ftu);
-	ft->newcart = 0;		/* clear new cartridge */
-	if (ft->hdr != NULL) free(ft->hdr, M_DEVBUF);
-	if (havebufs) {
-		for (sp = ft->segfree; sp != NULL;) {
-			rsp = sp; sp = sp->next;
-			free(rsp, M_DEVBUF);
-		}
-		for (sp = ft->segh; sp != NULL;) {
-			rsp = sp; sp = sp->next;
-			free(rsp, M_DEVBUF);
-		}
-		for (sp = ft->doneh; sp != NULL;) {
-			rsp = sp; sp = sp->next;
-			free(rsp, M_DEVBUF);
-		}
-	}
-	havebufs = 0;
-  }
-  return(0);
-}
-
-
-/*
- *  Perform a QIC status function.
- */
-static int
-qic_status(ftu_t ftu, int cmd, int nbits)
-{
-  int st3, r, i;
-  ft_p	ft = ft_data[ftu];
-  fdcu_t fdcu = ft->fdc->fdcu;		/* fdc active unit */
-
-  if (tape_cmd(ftu, cmd)) {
-	DPRT(("ft%d: QIC status timeout\n", ftu));
-	return(-1);
-  }
-
-  /* Sense drive status */
-  out_fdc(fdcu, NE7CMD_SENSED);
-  out_fdc(fdcu, ftu);
-  st3 = in_fdc(fdcu);
-
-  if ((st3 & 0x10) == 0) {	/* track 0 */
-	DPRT(("qic_status has dead drive...  st3 = $%02x\n", st3));
-	return(-1);
-  }
-
-  for (i = r = 0; i <= nbits; i++) {
-	if (tape_cmd(ftu, QC_NEXTBIT)) {
-		DPRT(("ft%d: QIC status bit timed out on %d\n", ftu, i));
-		return(-1);
-	}
-
-	out_fdc(fdcu, NE7CMD_SENSED);
-	out_fdc(fdcu, ftu);
-	st3 = in_fdc(fdcu);
-	if (st3 < 0) {
-		DPRT(("ft%d: controller timed out on bit %d r=$%02x\n",
-					ftu, i, r));
-		return(-1);
-	}
-
-	r >>= 1;
-	if (i < nbits)
-		r |= ((st3 & 0x10) ? 1 : 0) << nbits;
-	else if ((st3 & 0x10) == 0) {
-		DPRT(("ft%d: qic status stop bit missing at %d, st3=$%02x r=$%04x\n",
-			ftu,i,st3,r));
-		return(-1);
-	}
-  }
-
-  DPRT(("qic_status returned $%02x\n", r));
-  return(r);
-}
-
-
-/*
- *  Open tape drive for use.  Bounced off of Fdopen if tape minor is
- *  detected.
- */
-int
-ftopen(dev_t dev, int arg2) {
-  ftu_t ftu = FDUNIT(minor(dev));
-  fdc_p fdc;
-
-  /* check bounds */
-  if (ftu >= NFT)
-	return(ENXIO);
-  if (!ft_data[ftu])
-	return(ENXIO);
-  fdc = ft_data[ftu]->fdc;
-  if ((fdc == NULL) || (ft_data[ftu]->type == NO_TYPE))
-	  return(ENXIO);
-  /* check for controller already busy with tape */
-  if (fdc->flags & FDC_TAPE_BUSY)
-	return(EBUSY);
-  /* make sure we found a tape when probed */
-  if (!(fdc->flags & FDC_HASFTAPE))
-	return(ENODEV);
-  fdc->fdu = ftu;
-  fdc->flags |= FDC_TAPE_BUSY;
-  return(set_fdcmode(dev, FDC_TAPE_MODE)); /* try to switch to tape */
-}
-
-
-/*
- *  Close tape and return floppy controller to disk mode.
- */
-int
-ftclose(dev_t dev, int flags)
-{
-  ftu_t ftu = FDUNIT(minor(dev));
-  ft_p	ft = ft_data[ftu];
-
-
-  /* Wait for any remaining I/O activity to complete. */
-  tape_inactive(ftu);
-
-  ft->mode = FTM_PRIMARY;
-  tape_cmd(ftu, QC_PRIMARY);
-  tape_state(ftu, 0, QS_READY, 60);
-  ftreq_rewind(ftu);
-  return(set_fdcmode(dev, FDC_DISK_MODE));	/* Otherwise, close tape */
-}
-
-/*
- *  Read or write a segment.
- */
-static int
-ftreq_rw(ftu_t ftu, unsigned long cmd, QIC_Segment *sr, struct proc *p)
-{
-  int r, i;
-  SegReq *sp;
-  int s;
-  long blk, bad, seg;
-  unsigned char *cp, *cp2;
-  ft_p	ft = ft_data[ftu];
-
-  if (!ft->active && ft->segh == NULL) {
-	r = tape_status(ftu);
-	if ((r & QS_CART) == 0)
-		return(ENXIO);	/* No cartridge */
-	if ((r & QS_FMTOK) == 0)
-		return(ENXIO);	/* Not formatted */
-	tape_state(ftu, 0, QS_READY, 90);
-  }
-
-  if (ftg == NULL || ft->newcart) {
-	tape_inactive(ftu);
-	tape_state(ftu, 0, QS_READY, 90);
-	if (ftgetgeom(ftu) < 0)
-		return(ENXIO);
-  }
-
-  /* Write not allowed on a read-only tape. */
-  if (cmd == QIOWRITE && ft->rdonly)
-	return(EROFS);
-
-  /* Quick check of request and buffer. */
-  if (sr == NULL || sr->sg_data == NULL)
-	return(EINVAL);
-
-  /* Make sure requested track and segment is in range. */
-  if (sr->sg_trk >= ftg->g_trktape || sr->sg_seg >= ftg->g_segtrk)
-	return(EINVAL);
-
-  blk = sr->sg_trk * ftg->g_blktrk + sr->sg_seg * QCV_BLKSEG;
-  seg = sr->sg_trk * ftg->g_segtrk + sr->sg_seg;
-
-  s = splbio();
-  if (cmd == QIOREAD) {
-	/*
-	 *  See if the driver is reading ahead.
-	 */
-	if (ft->doneh != NULL ||
-		(ft->segh != NULL && ft->segh->reqtype == FTIO_RDAHEAD)) {
-		/*
-		 *  Eat the completion queue and see if the request
-		 *  is already there.
-		 */
-		while (ft->doneh != NULL) {
-			if (blk == ft->doneh->reqblk) {
-				sp = ft->doneh;
-				sp->reqtype = FTIO_READING;
-				sp->reqbad = sr->sg_badmap;
-				goto rddone;
-			}
-			segio_free(ft, ft->doneh);
-		}
-
-		/*
-		 *  Not on the completed queue, in progress maybe?
-		 */
-		if (ft->segh != NULL && ft->segh->reqtype == FTIO_RDAHEAD &&
-				blk == ft->segh->reqblk) {
-			sp = ft->segh;
-			sp->reqtype = FTIO_READING;
-			sp->reqbad = sr->sg_badmap;
-			goto rdwait;
- 		}
-	}
-
-	/* Wait until we're ready. */
-	tape_inactive(ftu);
-
-	/* Set up a new read request. */
-	sp = segio_alloc(ft);
-	sp->reqcrc = 0;
-	sp->reqbad = sr->sg_badmap;
-	sp->reqblk = blk;
-	sp->reqseg = seg;
-	sp->reqcan = 0;
-	sp->reqtype = FTIO_READING;
-	segio_queue(ft, sp);
-
-	/* Start the read request off. */
-	DPRT(("Starting read I/O chain\n"));
-	arq_state = ard_state = awr_state = 0;
-	ft->xblk = sp->reqblk;
-	ft->xseg = sp->reqseg;
-	ft->xcnt = 0;
-	ft->xptr = sp->buff;
-	ft->active = 1;
-	ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, 1);
-
-rdwait:
-	ftsleep(wc_buff_done, 0);
-
-rddone:
-	bad = sp->reqbad;
-	sr->sg_crcmap = sp->reqcrc & ~bad;
-
-	/* Copy out segment and discard bad mapped blocks. */
-	cp = sp->buff; cp2 = sr->sg_data;
-	for (i = 0; i < QCV_BLKSEG; cp += QCV_BLKSIZE, i++) {
-		if (bad & (1 << i)) continue;
-		copyout(cp, cp2, QCV_BLKSIZE);
-		cp2 += QCV_BLKSIZE;
-	}
-	segio_free(ft, sp);
-  } else {
-	if (ft->segh != NULL && ft->segh->reqtype != FTIO_WRITING)
-		tape_inactive(ftu);
-
-	/* Allocate a buffer and start tape if we're running low. */
-	sp = segio_alloc(ft);
-	if (!ft->active && (sp == NULL || ft->nfreelist <= 1)) {
-		DPRT(("Starting write I/O chain\n"));
-		arq_state = ard_state = awr_state = 0;
-		ft->xblk = ft->segh->reqblk;
-		ft->xseg = ft->segh->reqseg;
-		ft->xcnt = 0;
-		ft->xptr = ft->segh->buff;
-		ft->active = 1;
-		ft->tohandle = timeout(ft_timeout, (caddr_t)ftu, 1);
-	}
-
-	/* Sleep until a buffer becomes available. */
-	while (sp == NULL) {
-		ftsleep(wc_buff_avail, 0);
-		sp = segio_alloc(ft);
-	}
-
-	/* Copy in segment and expand bad blocks. */
-	bad = sr->sg_badmap;
-	cp = sr->sg_data; cp2 = sp->buff;
-	for (i = 0; i < QCV_BLKSEG; cp2 += QCV_BLKSIZE, i++) {
-		if (bad & (1 << i)) continue;
-		copyin(cp, cp2, QCV_BLKSIZE);
-		cp += QCV_BLKSIZE;
-	}
-	sp->reqblk = blk;
-	sp->reqseg = seg;
-	sp->reqcan = 0;
-	sp->reqtype = FTIO_WRITING;
-	segio_queue(ft, sp);
-  }
-  splx(s);
-  return(0);
-}
-
-
-/*
- *  Rewind to beginning of tape
- */
-static int
-ftreq_rewind(ftu_t ftu)
-{
-  ft_p	ft = ft_data[ftu];
-
-  tape_inactive(ftu);
-  tape_cmd(ftu, QC_STOP);
-  tape_state(ftu, 0, QS_READY, 90);
-  tape_cmd(ftu, QC_SEEKSTART);
-  tape_state(ftu, 0, QS_READY, 90);
-  tape_cmd(ftu, QC_SEEKTRACK);
-  tape_cmd(ftu, 2);
-  tape_state(ftu, 0, QS_READY, 90);
-  ft->lastpos = -1;
-  ft->moving = 0;
-  return(0);
-}
-
-
-/*
- *  Move to logical beginning or end of track
- */
-static int
-ftreq_trkpos(ftu_t ftu, int req)
-{
-  int curtrk, r, cmd;
-  ft_p	ft = ft_data[ftu];
-
-  tape_inactive(ftu);
-  tape_cmd(ftu, QC_STOP);
-  tape_state(ftu, 0, QS_READY, 90);
-
-  r = tape_status(ftu);
-  if ((r & QS_CART) == 0) return(ENXIO);	/* No cartridge */
-  if ((r & QS_FMTOK) == 0) return(ENXIO);	/* Not formatted */
-
-  if (ftg == NULL || ft->newcart) {
-	if (ftgetgeom(ftu) < 0) return(ENXIO);
-  }
-
-  curtrk = (ft->lastpos < 0) ? 0 : ft->lastpos / ftg->g_blktrk;
-  if (req == QIOBOT)
-	cmd = (curtrk & 1) ? QC_SEEKEND : QC_SEEKSTART;
-  else
-	cmd = (curtrk & 1) ? QC_SEEKSTART : QC_SEEKEND;
-  tape_cmd(ftu, cmd);
-  tape_state(ftu, 0, QS_READY, 90);
-  return(0);
-}
-
-
-/*
- *  Seek tape head to a particular track.
- */
-static int
-ftreq_trkset(ftu_t ftu, int *trk)
-{
-  int r;
-  ft_p	ft = ft_data[ftu];
-
-  tape_inactive(ftu);
-  tape_cmd(ftu, QC_STOP);
-  tape_state(ftu, 0, QS_READY, 90);
-
-  r = tape_status(ftu);
-  if ((r & QS_CART) == 0) return(ENXIO);	/* No cartridge */
-  if ((r & QS_FMTOK) == 0) return(ENXIO);	/* Not formatted */
-  if (ftg == NULL || ft->newcart) {
-	if (ftgetgeom(ftu) < 0) return(ENXIO);
-  }
-
-  tape_cmd(ftu, QC_SEEKTRACK);
-  tape_cmd(ftu, *trk + 2);
-  tape_state(ftu, 0, QS_READY, 90);
-  return(0);
-}
-
-
-/*
- *  Start tape moving forward.
- */
-static int
-ftreq_lfwd(ftu_t ftu)
-{
-  ft_p	ft = ft_data[ftu];
-
-  tape_inactive(ftu);
-  tape_cmd(ftu, QC_STOP);
-  tape_state(ftu, 0, QS_READY, 90);
-  tape_cmd(ftu, QC_FORWARD);
-  ft->moving = 1;
-  return(0);
-}
-
-
-/*
- *  Stop the tape
- */
-static int
-ftreq_stop(ftu_t ftu)
-{
-  ft_p	ft = ft_data[ftu];
-
-  tape_inactive(ftu);
-  tape_cmd(ftu, QC_STOP);
-  tape_state(ftu, 0, QS_READY, 90);
-  ft->moving = 0;
-  return(0);
-}
-
-
-/*
- *  Set the particular mode the drive should be in.
- */
-static int
-ftreq_setmode(ftu_t ftu, int cmd)
-{
-  int r;
-  ft_p	ft = ft_data[ftu];
-
-  tape_inactive(ftu);
-  r = tape_status(ftu);
-
-  switch(cmd) {
-     case QIOPRIMARY:
-	ft->mode = FTM_PRIMARY;
-	tape_cmd(ftu, QC_PRIMARY);
-	break;
-     case QIOFORMAT:
-	if (r & QS_RDONLY) return(ENXIO);
-	if ((r & QS_BOT) == 0) return(ENXIO);
-	tape_cmd(ftu, QC_FORMAT);
-	break;
-     case QIOVERIFY:
-	if ((r & QS_FMTOK) == 0) return(ENXIO);	/* Not formatted */
-	tape_cmd(ftu, QC_VERIFY);
-	break;
-  }
-  tape_state(ftu, 0, QS_READY, 60);
-  return(0);
-}
-
-
-/*
- *  Return drive status bits
- */
-static int
-ftreq_status(ftu_t ftu, unsigned long cmd, int *sts, struct proc *p)
-{
-  ft_p	ft = ft_data[ftu];
-
-  if (ft->active)
-	*sts = ft->laststs & ~QS_READY;
-  else
-	*sts = tape_status(ftu);
-  return(0);
-}
-
-
-/*
- *  Return drive configuration bits
- */
-static int
-ftreq_config(ftu_t ftu, unsigned long cmd, int *cfg, struct proc *p)
-{
-  int r, tries;
-  ft_p	ft = ft_data[ftu];
-
-  if (ft->active)
-	r = ft->lastcfg;
-  else {
-	for (r = -1, tries = 0; r < 0 && tries < 3; tries++)
-		r = qic_status(ftu, QC_CONFIG, 8);
-	if (tries == 3) return(ENXIO);
-  }
-  *cfg = r;
-  return(0);
-}
-
-
-/*
- *  Return current tape's geometry.
- */
-static int
-ftreq_geom(ftu_t ftu, QIC_Geom *g)
-{
-  tape_inactive(ftu);
-  if (ftg == NULL && ftgetgeom(ftu) < 0) return(ENXIO);
-  bcopy(ftg, g, sizeof(QIC_Geom));
-  return(0);
-}
-
-
-/*
- *  Return drive hardware information
- */
-static int
-ftreq_hwinfo(ftu_t ftu, QIC_HWInfo *hwp)
-{
-  int tries;
-  int rom, vend;
-
-  tape_inactive(ftu);
-  bzero(hwp, sizeof(QIC_HWInfo));
-
-  for (rom = -1, tries = 0; rom < 0 && tries < 3; tries++)
-	rom = qic_status(ftu, QC_VERSION, 8);
-  if (rom > 0) {
-	hwp->hw_rombeta = (rom >> 7) & 0x01;
-	hwp->hw_romid = rom & 0x7f;
-  }
-
-  for (vend = -1, tries = 0; vend < 0 && tries < 3; tries++)
-	vend = qic_status(ftu, QC_VENDORID, 16);
-  if (vend > 0) {
-	hwp->hw_make = (vend >> 6) & 0x3ff;
-	hwp->hw_model = vend & 0x3f;
-  }
-
-  return(0);
-}
-
-
-/*
- *  Receive or Send the in-core header segment.
- */
-static int
-ftreq_hdr(ftu_t ftu, unsigned long cmd, QIC_Segment *sp)
-{
-  ft_p	ft = ft_data[ftu];
-  QIC_Header *h = (QIC_Header *)ft->hdr->buff;
-
-  if (sp == NULL || sp->sg_data == NULL) return(EINVAL);
-  if (cmd == QIOSENDHDR) {
-	copyin(sp->sg_data, ft->hdr->buff, QCV_SEGSIZE);
-  } else {
-	if (h->qh_sig != QCV_HDRMAGIC) return(EIO);
-	copyout(ft->hdr->buff, sp->sg_data, QCV_SEGSIZE);
-  }
-  return(0);
-}
-
-/*
- *  I/O functions.
- */
-int
-ftioctl(dev_t dev, unsigned long cmd, caddr_t data, int flag, struct proc *p)
-{
-  ftu_t ftu = FDUNIT(minor(dev));
-
-  switch(cmd) {
-     case QIOREAD:	/* Request reading a segment from tape.		*/
-     case QIOWRITE:	/* Request writing a segment to tape.		*/
-	return(ftreq_rw(ftu, cmd, (QIC_Segment *)data, p));
-
-     case QIOREWIND:	/* Rewind tape.					*/
-	return(ftreq_rewind(ftu));
-
-     case QIOBOT:	/* Seek to logical beginning of track.		*/
-     case QIOEOT:	/* Seek to logical end of track.		*/
-	return(ftreq_trkpos(ftu, cmd));
-
-     case QIOTRACK:	/* Seek tape head to specified track.		*/
-	return(ftreq_trkset(ftu, (int *)data));
-
-     case QIOSEEKLP:	/* Seek load point.				*/
-	goto badreq;
-
-     case QIOFORWARD:	/* Move tape in logical forward direction.	*/
-	return(ftreq_lfwd(ftu));
-
-     case QIOSTOP:	/* Causes tape to stop.				*/
-	return(ftreq_stop(ftu));
-
-     case QIOPRIMARY:	/* Enter primary mode.				*/
-     case QIOFORMAT:	/* Enter format mode.				*/
-     case QIOVERIFY:	/* Enter verify mode.				*/
-	return(ftreq_setmode(ftu, cmd));
-
-     case QIOWRREF:	/* Write reference burst.			*/
-	goto badreq;
-
-     case QIOSTATUS:	/* Get drive status.				*/
-	return(ftreq_status(ftu, cmd, (int *)data, p));
-
-     case QIOCONFIG:	/* Get tape configuration.			*/
-	return(ftreq_config(ftu, cmd, (int *)data, p));
-
-     case QIOGEOM:
-	return(ftreq_geom(ftu, (QIC_Geom *)data));
-
-     case QIOHWINFO:
-	return(ftreq_hwinfo(ftu, (QIC_HWInfo *)data));
-
-     case QIOSENDHDR:
-     case QIORECVHDR:
-	return(ftreq_hdr(ftu, cmd, (QIC_Segment *)data));
-  }
-badreq:
-  DPRT(("ft%d: unknown ioctl(%#lx) request\n", ftu, cmd));
-  return(ENXIO);
-}
-
-#endif
diff --git a/sys/i386/isa/ftreg.h b/sys/i386/isa/ftreg.h
deleted file mode 100644
index eea78ec9ea5a..000000000000
--- a/sys/i386/isa/ftreg.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- *  Copyright (c) 1993, 1994 Steve Gerakines
- *
- *  This is freely redistributable software.  You may do anything you
- *  wish with it, so long as the above notice stays intact.
- *
- *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
- *  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- *  DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
- *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- *  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- *  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- *  POSSIBILITY OF SUCH DAMAGE.
- *
- *  ftreg.h - QIC-40/80 floppy tape driver header
- *  06/03/94 v0.9
- *  Changed seek load point to QC_SEEKLP, added reqseg to SegReq structure.
- *
- *  10/30/93 v0.3
- *  More things will end up here.  QC_VENDORID and QC_VERSION now used.
- *
- *  08/07/93 v0.2 release
- *  Things that should've been here in the first place were moved.
- *  Tape geometry and segment request types were added.
- *
- *  06/03/93 v0.1 Alpha release
- *  Initial revision.  Many more things should be moved here.
- */
-
-/* QIC-117 command set. */
-#define QC_RESET			1	/* reset */
-#define QC_NEXTBIT			2	/* report next bit */
-#define QC_PAUSE			3	/* pause */
-#define QC_STPAUSE			4	/* step pause */
-#define QC_TIMEOUT			5	/* alt timeout */
-#define QC_STATUS			6	/* report status */
-#define QC_ERRCODE			7	/* report error code */
-#define QC_CONFIG			8	/* report config */
-#define QC_VERSION			9	/* report version */
-#define QC_FORWARD			10	/* logical forward */
-#define QC_SEEKSTART			11	/* seek to track start */
-#define QC_SEEKEND			12	/* seek to track end */
-#define QC_SEEKTRACK			13	/* seek head to track */
-#define QC_SEEKLP			14	/* seek load point */
-#define QC_FORMAT			15	/* format mode */
-#define QC_WRITEREF			16	/* write reference */
-#define QC_VERIFY			17	/* verify mode */
-#define QC_STOP				18	/* stop tape */
-#define QC_STEPUP			21	/* step head up */
-#define QC_STEPDOWN			22	/* step head down */
-#define QC_SEEKREV			25	/* seek reverse */
-#define QC_SEEKFWD			26	/* seek forward */
-#define QC_RATE				27	/* select data rate */
-#define QC_DIAG1			28	/* diagnostic mode 1 */
-#define QC_DIAG2			29	/* diagnostic mode 2 */
-#define QC_PRIMARY			30	/* primary mode */
-#define QC_VENDORID			32	/* vendor id */
-#define QC_TSTATUS			33	/* report tape status */
-#define QC_EXTREV			34	/* extended skip reverse */
-#define QC_EXTFWD			35	/* extended skip forward */
-
-/* Colorado enable/disable. */
-#define QC_COL_ENABLE1			46	/* enable */
-#define QC_COL_ENABLE2			2	/* unit+2 */
-#define QC_COL_DISABLE			47	/* disable */
-
-/* Mountain enable/disable. */
-#define QC_MTN_ENABLE1			23	/* enable 1 */
-#define QC_MTN_ENABLE2			20	/* enable 2 */
-#define QC_MTN_DISABLE			24	/* disable */
-
-/* Segment I/O request. */
-typedef struct segq {
-	unsigned char buff[QCV_SEGSIZE];/* Segment data; first for alignment */
-	int reqtype;			/* Request type */
-	long reqcrc;			/* CRC Errors found */
-	long reqbad;			/* Bad sector map */
-	long reqblk;			/* Block request starts at */
-	long reqseg;			/* Segment request is at */
-	int reqcan;			/* Cancel read-ahead */
-	struct segq *next;		/* Next request */
-} SegReq;
-
-typedef int	ftu_t;
-typedef int	ftsu_t;
-typedef	struct ft_data *ft_p;
diff --git a/sys/isa/fd.c b/sys/isa/fd.c
index e644f783957a..5380d54151d4 100644
--- a/sys/isa/fd.c
+++ b/sys/isa/fd.c
@@ -47,14 +47,10 @@
  * SUCH DAMAGE.
  *
  *	from:	@(#)fd.c	7.4 (Berkeley) 5/25/91
- *	$Id: fd.c,v 1.128 1998/12/12 08:16:01 imp Exp $
+ *	$Id: fd.c,v 1.129 1998/12/14 16:29:58 bde Exp $
  *
  */
 
-#include "ft.h"
-#if NFT < 1
-#undef NFDC
-#endif
 #include "fd.h"
 #include "opt_devfs.h"
 #include "opt_fdc.h"
@@ -80,10 +76,6 @@
 #include <i386/isa/fdc.h>
 #include <i386/isa/rtc.h>
 #include <machine/stdarg.h>
-#if NFT > 0
-#include <sys/ftape.h>
-#include <i386/isa/ftreg.h>
-#endif
 #ifdef	DEVFS
 #include <sys/devfsext.h>
 #endif	/* DEVFS */
@@ -198,17 +190,6 @@ static struct fd_data {
 * fdsu is the floppy drive unit number on that controller. (sub-unit)	*
 \***********************************************************************/
 
-#if NFT > 0
-int ftopen(dev_t, int);
-int ftintr(ftu_t ftu);
-int ftclose(dev_t, int);
-void ftstrategy(struct buf *);
-int ftioctl(dev_t, unsigned long, caddr_t, int, struct proc *);
-int ftdump(dev_t);
-int ftsize(dev_t);
-int ftattach(struct isa_device *, struct isa_device *, int);
-#endif
-
 #ifdef FDC_YE
 #include "card.h"
 static int yeattach(struct isa_device *);
@@ -650,9 +631,6 @@ fdattach(struct isa_device *dev)
 	fdc_p	fdc = fdc_data + fdcu;
 	fd_p	fd;
 	int	fdsu, st0, st3, i;
-#if NFT > 0
-	int	unithasfd;
-#endif
 	struct isa_device *fdup;
 	int ic_type = 0;
 #ifdef DEVFS
@@ -679,7 +657,7 @@ fdattach(struct isa_device *dev)
 			continue;
 		fdu = fdup->id_unit;
 		fd = &fd_data[fdu];
-		if (fdu >= (NFD+NFT))
+		if (fdu >= (NFD))
 			continue;
 		fdsu = fdup->id_physid;
 		/* look up what bios thinks we have */
@@ -696,26 +674,8 @@ fdattach(struct isa_device *dev)
 		}
 		/* is there a unit? */
 		if ((fdt == RTCFDT_NONE)
-#if NFT > 0
-		    || (fdsu >= DRVS_PER_CTLR)) {
-#else
 		) {
 			fd->type = NO_TYPE;
-#endif
-#if NFT > 0
-			/* If BIOS says no floppy, or > 2nd device */
-			/* Probe for and attach a floppy tape.     */
-			/* Tell FT if there was already a disk     */
-			/* with this unit number found.            */
-
-			unithasfd = 0;
-			if (fdu < NFD && fd->type != NO_TYPE)
-				unithasfd = 1;
-			if (ftattach(dev, fdup, unithasfd))
-				continue;
-			if (fdsu < DRVS_PER_CTLR)
-				fd->type = NO_TYPE;
-#endif
 			continue;
 		}
 
@@ -1264,11 +1224,6 @@ Fdopen(dev_t dev, int flags, int mode, struct proc *p)
 	int type = FDTYPE(minor(dev));
 	fdc_p	fdc;
 
-#if NFT > 0
-	/* check for a tape open */
-	if (type & F_TAPE_TYPE)
-		return(ftopen(dev, flags));
-#endif
 	/* check bounds */
 	if (fdu >= NFD)
 		return(ENXIO);
@@ -1342,12 +1297,6 @@ fdclose(dev_t dev, int flags, int mode, struct proc *p)
 {
  	fdu_t fdu = FDUNIT(minor(dev));
 
-#if NFT > 0
-	int type = FDTYPE(minor(dev));
-
-	if (type & F_TAPE_TYPE)
-		return ftclose(dev, flags);
-#endif
 	fd_data[fdu].flags &= ~FD_OPEN;
 	fd_data[fdu].options &= ~FDOPT_NORETRY;
 
@@ -1397,20 +1346,6 @@ fdstrategy(struct buf *bp)
 	};
 #endif
 
-#if NFT > 0
-	if (FDTYPE(minor(bp->b_dev)) & F_TAPE_TYPE) {
-		/* ft tapes do not (yet) support strategy i/o */
-		bp->b_error = ENODEV;
-		bp->b_flags |= B_ERROR;
-		goto bad;
-	}
-	/* check for controller already busy with tape */
-	if (fdc->flags & FDC_TAPE_BUSY) {
-		bp->b_error = EBUSY;
-		bp->b_flags |= B_ERROR;
-		goto bad;
-	}
-#endif
 	fdblk = 128 << (fd->ft->secsize);
 	if (!(bp->b_flags & B_FORMAT)) {
 		if ((fdu >= NFD) || (bp->b_blkno < 0)) {
@@ -1544,13 +1479,6 @@ static void
 fdintr(fdcu_t fdcu)
 {
 	fdc_p fdc = fdc_data + fdcu;
-#if NFT > 0
-	fdu_t fdu = fdc->fdu;
-
-	if (fdc->flags & FDC_TAPE_BUSY)
-		(ftintr(fdu));
-	else
-#endif
 		while(fdstate(fdcu, fdc))
 			;
 }
@@ -2251,14 +2179,6 @@ fdioctl(dev, cmd, addr, flag, p)
 	char buffer[DEV_BSIZE];
 	int error = 0;
 
-#if NFT > 0
-	int type = FDTYPE(minor(dev));
-
-	/* check for a tape ioctl */
-	if (type & F_TAPE_TYPE)
-		return ftioctl(dev, cmd, addr, flag, p);
-#endif
-
 	fdblk = 128 << fd->ft->secsize;
 
 	switch (cmd)