2006-02-20 Thomas Schwinge <tschwinge@gnu.org>

Remove unused and unsupported code.  Consult the file
	`DEVELOPMENT' for details.  Partly based on suggestions by
	Gianluca Guida <glguida@gmail.com>.

	* i386/bogus/fd.h: Remove file.
	* i386/i386at/fd.c: Likewise.
	* i386/i386at/fdreg.h: Likewise.
	* i386/i386at/nfd.c: Likewise.
	* i386/i386at/nfdreg.h: Likewise.
	* i386/Makefile.in (i386at-files): Remove `fd.c'.
	* i386/i386at/autoconf.c: Don't include <fd.h> anymore and adopt all
	users of NFD as if it were always defined to `0'.
	* i386/i386at/conf.c: Likewise.

8 files changed, 1 insertions, 3705 deletions

diff --git a/i386/Makefile.in b/i386/Makefile.in
index c6fe430..eaa03b7 100644
--- a/i386/Makefile.in
+++ b/i386/Makefile.in
@@ -70,7 +70,7 @@ endif
 
 
 # Source files for any i386 kernel
-i386at-files = autoconf.c blit.c conf.c cons_conf.c fd.c rtc.c \
+i386at-files = autoconf.c blit.c conf.c cons_conf.c rtc.c \
 	i386at_ds_routines.c immc.c int_init.c iopl.c kd.c kd_event.c \
 	kd_mouse.c kd_queue.c model_dep.c phys_mem_grab_page.c pic_isa.c
 i386-files = ast_check.c db_disasm.c db_interface.c db_trace.c debug_i386.c \
diff --git a/i386/bogus/fd.h b/i386/bogus/fd.h
deleted file mode 100644
index e2632b3..0000000
--- a/i386/bogus/fd.h
+++ /dev/null
@@ -1 +0,0 @@
-#define NFD 4/*2*/ 
diff --git a/i386/i386at/autoconf.c b/i386/i386at/autoconf.c
index 77d825e..583cde8 100644
--- a/i386/i386at/autoconf.c
+++ b/i386/i386at/autoconf.c
@@ -47,12 +47,6 @@
 #define	SPL_TTY		(vm_offset_t)SPLTTY
 
 
-#include <fd.h>
-#if NFD > 0
-extern	struct	bus_driver	fddriver;
-extern int			fdintr();
-#endif /* NFD */
-
 #include <aha.h>
 #if NAHA > 0
 extern struct	bus_driver	aha_driver;
@@ -196,14 +190,6 @@ struct	bus_ctlr	bus_master_init[] = {
 {&eaha_driver, "eahac", 0, eaha_intr, 0xf000, 4, 0xf000,
      '?',	0,  0,	 SPL_FIVE, 12},
 #endif /* NEAHA > 0 */
-
-#if NFD > 0
-  {&fddriver, "fdc",  0, fdintr, 0x3f2, 6, 0x3f2,
-     '?',	0,  0,	 SPL_FIVE, 6},
-
-  {&fddriver, "fdc",  1, fdintr, 0x372, 6, 0x372,
-     '?',	0,  0,	 SPL_FIVE, 10},
-#endif	/* NFD > 0 */
 #endif	/* ! LINUX_DEV */
 
   0
@@ -277,18 +263,6 @@ struct	bus_device	bus_device_init[] = {
 { &eaha_driver,	"tz",   7,  0,  0x0,0,	0,    '?',     0,   0,   7,    0, },
 #endif	/* NEAHA > 0*/
 
-#if NFD > 0
-  {&fddriver, "fd", 0, fdintr, 0x3f2, 6, 0x3f2,
-     '?',    0,   0,    0,    0,   0,  0,   SPL_FIVE, 6},
-  {&fddriver, "fd", 1, fdintr, 0x3f2, 6, 0x3f2,
-     '?',    0,   0,    1,    0,   0,  0,   SPL_FIVE, 6},
-
-  {&fddriver, "fd", 2, fdintr, 0x372, 6, 0x372,
-     '?',    0,   1,    0,    0,   0,  0,   SPL_FIVE, 10},
-  {&fddriver, "fd", 3, fdintr, 0x372, 6, 0x372,
-     '?',    0,   1,    1,    0,   0,  0,   SPL_FIVE, 10},
-#endif /* NFD > 0 */
-
 #if NPC586 > 0
   /* For MACH Default */
   {&pcdriver, "pc", 0, pc586intr, 0xd0000, 0, 0xd0000,
diff --git a/i386/i386at/conf.c b/i386/i386at/conf.c
index 704d24f..9556c94 100644
--- a/i386/i386at/conf.c
+++ b/i386/i386at/conf.c
@@ -48,13 +48,6 @@ int	cd_open(), cd_close(), cd_read(), cd_write();
 
 #endif	/*NAHA > 0*/
 
-#include <fd.h>
-#if	NFD > 0
-extern int	fdopen(), fdclose(), fdread(), fdwrite();
-extern int	fdgetstat(), fdsetstat(), fddevinfo();
-#define	fdname			"fd"
-#endif	/* NFD > 0 */
-
 #include <wt.h>
 #if	NWT > 0
 extern int	wtopen(), wtread(), wtwrite(), wtclose();
@@ -224,13 +217,6 @@ struct dev_ops	dev_name_list[] =
 
 #endif	/*NAHA > 0*/
 
-#if	NFD > 0
-	{ fdname,	fdopen,		fdclose,	fdread,
-	  fdwrite,	fdgetstat,	fdsetstat,	nomap,
-	  nodev,	nulldev,	nulldev,	64,
-	  fddevinfo },
-#endif	/* NFD > 0 */
-
 #if	NWT > 0
 	{ wtname,	wtopen,		wtclose,	wtread,
 	  wtwrite,	nulldev,	nulldev,	nomap,
diff --git a/i386/i386at/fd.c b/i386/i386at/fd.c
deleted file mode 100644
index 82c4077..0000000
--- a/i386/i386at/fd.c
+++ /dev/null
@@ -1,1701 +0,0 @@
-/*
- * Mach Operating System
- * Copyright (c) 1993,1991,1990,1989 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Science
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-/*
-  Copyright 1988, 1989 by Intel Corporation, Santa Clara, California.
-
-		All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and
-its documentation for any purpose and without fee is hereby
-granted, provided that the above copyright notice appears in all
-copies and that both the copyright notice and this permission notice
-appear in supporting documentation, and that the name of Intel
-not be used in advertising or publicity pertaining to distribution
-of the software without specific, written prior permission.
-
-INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
-INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
-IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
-CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
-LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
-NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-/*	Copyright (c) 1987, 1988 TOSHIBA Corp.		*/
-/*		All Rights Reserved			*/
-
-#if 0
-
-#include <fd.h>
-
-#ifdef	MACH_KERNEL
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <device/buf.h>
-#include <device/errno.h>
-#else	/* MACH_KERNEL */
-#include <sys/buf.h>
-#include <sys/errno.h>
-#include <sys/user.h>
-#include <sys/ioctl.h>
-#endif	/* MACH_KERNEL */
-#include <i386/pio.h>
-#include <i386/machspl.h>
-#include <chips/busses.h>
-#include <i386at/fdreg.h>
-#include <i386at/disk.h>
-#include <vm/vm_kern.h>
-
-#ifdef	DEBUG
-#define D(x) x
-#define DD(x) x
-#else	/* DEBUG */
-#define D(x)
-#define DD(x)
-#endif	/* DEBUG */
-
-/*
- * Floppy Device-Table Definitions (drtabs)
- *
- *      Cyls,Sec,spc,part,Mtype,RWFpl,FGpl
- */
-struct	fddrtab m765f[] = {			/* format table */
-	80, 18, 1440,  9, 0x88, 0x2a, 0x50,	/* [0] 3.50" 720  Kb  */
-	80, 36, 2880, 18, 0x08, 0x1b, 0x6c,	/* [1] 3.50" 1.44 Meg */
-	40, 18,  720,  9, 0xa8, 0x2a, 0x50,	/* [2] 5.25" 360  Kb  */
-	80, 30, 2400, 15, 0x08, 0x1b, 0x54	/* [3] 5.25" 1.20 Meg */
-};
-
-/*
- * The following are static initialization variables
- * which are based on the configuration.
- */
-struct ctrl_info ctrl_info[MAXUNIT>>1] = {		/* device data table */
-	{  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } ,
-	{  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
-};
-
-struct unit_info unit_info[MAXUNIT];		/* unit buffer headers	*/
-
-char *fderr = "FD Error on unit";
-char *fdmsg[] = {
-	"?",
-	"Missing data address mark",
-	"Write protected",
-	"Sector not found",
-	"Data Overrun",				/* Over run error */
-	"Uncorrectable data read error",	/* CRC Error */
-	"FDC Error",
-	"Illegal format type",
-	"Drive not ready",
-	"diskette not present - please insert",
-	"Illegal interrupt type"
-};
-
-struct buf	fdrbuf[MAXUNIT];	/* data transfer buffer structures */
-
-int	fdminphys();
-int	fdintr(), fdprobe(), fdslave();
-void	fdattach();
-int	FdDmaEISA = 0;
-int	FdDmaThreshold = 16 * 1024 * 1024;
-vm_offset_t	FdDmaPage = (vm_offset_t) 0;
-vm_offset_t	fd_std[NFD] = { 0 };
-struct	bus_device *fd_dinfo[NFD*2];
-struct	bus_ctlr *fd_minfo[NFD];
-struct	bus_driver	fddriver =
-	{fdprobe, fdslave, fdattach, 0, fd_std, "fd", fd_dinfo, "fdc", fd_minfo, 0};
-
-int	m765verify[MAXUNIT] = {1,1,1,1};	/* write after read flag */
-						/* 0 != verify mode	*/
-						/* 0 == not verify mode */
-#ifdef	MACH_KERNEL
-extern struct buf *geteblk();
-#endif	/* MACH_KERNEL */
-
-#define trfrate(uip, type)   outb(VFOREG(uip->addr),(((type)&RATEMASK)>>6))
-#define rbskrate(uip, type)  trfrate(uip,(type)&RAPID?RPSEEK:NMSEEK)
-#define getparm(type)   ((type<0||type>3)?(struct fddrtab *)ERROR:&m765f[type])
-#define relative(s1,s2) ((s1)>(s2)?(s1)-(s2):(s2)-(s1))
-
-fdprobe(port, ctlr)
-struct bus_ctlr *ctlr;
-{
-	int			spot = STSREG((int) ctlr->address);
-	struct ctrl_info	*cip = &ctrl_info[ctlr->unit];
-	int			i, in;
-
-	outb(spot, DATAOK);
-	for (i = 1000; i--;) {
-		in = inb(spot);
-		if ((in&DATAOK) == DATAOK && !(in&0x0f)) {
-			take_ctlr_irq(ctlr);
-			cip->b_cmd.c_rbmtr = 0;		/* recalibrate/moter flag */
-			cip->b_cmd.c_intr = CMDRST;	/* interrupt flag */
-			cip->b_unitf = 0;
-			cip->b_uip = 0;
-			cip->b_rwerr = cip->b_seekerr = cip->b_rberr = 0;
-			cip->usebuf = 0;
-			if (FdDmaPage) {
-				cip->b_pbuf = FdDmaPage + PAGE_SIZE * ctlr->unit;
-				if (kmem_alloc_pageable(kernel_map,
-					       (vm_offset_t *)&cip->b_vbuf,
-					       PAGE_SIZE) != KERN_SUCCESS) {
-					printf("%s%d: can not kmem_alloc_pageable.\n",
-						ctlr->name, ctlr->unit);
-					return 0;
-				}
-				(void)pmap_map(cip->b_vbuf,
-					       (vm_offset_t)cip->b_pbuf,
-					       (vm_offset_t)cip->b_pbuf+PAGE_SIZE,
-					       VM_PROT_READ | VM_PROT_WRITE);
-			}
-			printf("%s%d: port = %x, spl = %d, pic = %d.\n", ctlr->name,
-				ctlr->unit, ctlr->address, ctlr->sysdep, ctlr->sysdep1);
-			return(1);
-		}
-	}
-	return(0);
-}
-
-fdslave(dev, xxxx)
-struct bus_device		*dev;
-{
-	return(1);	/* gross hack */
-}
-
-void fdattach(dev)
-struct bus_device *dev;
-{
-	struct unit_info	*uip = &unit_info[dev->unit];
-	struct ctrl_info	*cip = &ctrl_info[dev->ctlr];
-
-	uip->dev = dev;
-	dev->address = dev->mi->address;
-	uip->addr = dev->address;
-	uip->b_cmd = &cip->b_cmd;
-	uip->b_seekaddr = 0;
-	uip->av_forw = 0;
-	uip->wakeme = 0;
-	if (cip->b_unitf) {
-		uip->b_unitf=cip->b_unitf->b_unitf;
-		cip->b_unitf->b_unitf=uip;
-	} else {
-		uip->b_unitf=uip;
-		cip->b_unitf=uip;
-	}
-	uip->d_drtab.dr_type &= ~OKTYPE;
-
-	printf(", port = %x, spl = %d, pic = %d.",
-		dev->address, dev->sysdep, dev->sysdep1);
-
-	rstout(uip);
-	specify(uip);
-}
-/*****************************************************************************
- *
- * TITLE:	fdopen
- *
- * ABSTRACT:	Open a unit.
- *
- ****************************************************************************/
-fdopen(dev, flag, otyp)
-dev_t	dev;
-int	flag;			/* not used */
-int	otyp;			/* not used */
-{
-	struct fddrtab		*driv;
-	struct buf		*wbp;
-	spl_t			x = SPL();
-	int			error = 0;
-	int			unit = UNIT(dev);
-	struct unit_info	*uip = &unit_info[unit];
-	int			slave = uip->dev->slave;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct	fdcmd		*cmdp = uip->b_cmd;
-	if (unit < MAXUNIT){
-	  /* Since all functions that use this are called from open, we only
-	     set this once, right here. */
-	  	rstout(uip);
-		cip->b_wup = uip;
-		openchk(cmdp);
-		cmdp->c_devflag |= FDMCHK;
-		chkbusy(cmdp);
-		cmdp->c_stsflag |= MTRFLAG;
-		mtr_on(uip);
-		if(inb(VFOREG(uip->addr))&OPENBIT ||
-		   !(uip->d_drtab.dr_type&OKTYPE)){
-			uip->d_drtab.dr_type &= ~OKTYPE;
-			if(!rbrate(RAPID, uip))
-				fdseek(RAPID, uip, 2);
-			if(inb(VFOREG(uip->addr))&OPENBIT)
-				error = ENXIO;
-		}
-		cmdp->c_stsflag &= ~MTRFLAG;
-		mtr_on(uip);
-		openfre(cmdp);
-		if(!error && !(uip->d_drtab.dr_type & OKTYPE)) {
-			if (MEDIATYPE(dev)>3)
-				goto endopen;
-			driv = &m765f[MEDIATYPE(dev)];
-			wbp = geteblk(BLKSIZE);
-			m765sweep(uip, driv);
-			cmdp->c_rbmtr &= ~(1<<(RBSHIFT+(slave)));
-			++cip->b_rwerr;
-			wbp->b_dev = dev; wbp->b_error = 0; wbp->b_resid = 0;
-			wbp->b_flags = (B_READ|B_VERIFY); wbp->b_bcount = 512;
-			wbp->b_pfcent = 2*driv->dr_spc + driv->dr_nsec - 1;
-			setqueue(wbp, uip);
-			biowait(wbp);
-			brelse(wbp);
-			error = 0;
-			uip->d_drtab.dr_type |= OKTYPE;
-		}
-	} else
-		error = ENXIO;
-      endopen:
-	splx(x);
-	return(error);
-}
-/*****************************************************************************
- *
- * TITLE:	fdclose
- *
- * ABSTRACT:	Close a unit.
- *
- *	Called on last close. mark the unit closed and not-ready.
- *
- * 	Unix doesn't actually "open" an inode for rootdev, swapdev or pipedev.
- *	If UNIT(swapdev) != UNIT(rootdev), then must add code in init() to
- *	"open" swapdev.  These	devices should never be closed.
- *
- *****************************************************************************/
-fdclose(dev, flag, otyp, offset)
-dev_t	dev;		/* major, minor numbers */
-int	flag;		/* not used */
-int	otyp;		/* not used */
-off_t	offset;		/* not used */
-{
-	extern			dev_t	rootdev, swapdev;
-	struct unit_info	*uip = &unit_info[UNIT(dev)];
-	spl_t s;
-
-#ifdef	MACH_KERNEL
-#else	/* MACH_KERNEL */
-	if ((dev == rootdev) || (dev == swapdev))  /* never close these */
-		return(0);
-#endif	/* MACH_KERNEL */
-
-	/* Clear the bit.
-	 * If last close of drive insure drtab queue is empty before returning.
-	 */
-	s = SPL();
-	while(uip->av_forw != 0) {
-		uip->wakeme = 1;
-		sleep(uip, PRIBIO);
-	}
-	splx(s);
-#ifdef	MACH_KERNEL
-	return(0);
-#else	/* MACH_KERNEL */
-	close(0);
-#endif	/* MACH_KERNEL */
-}
-/*****************************************************************************
- *
- * TITLE:	fdstrategy
- *
- * ABSTRACT:	Queue an I/O Request, and start it if not busy already.
- *
- *	Reject request if unit is not-ready.
- *
- *	Note:	check for not-ready done here ==> could get requests
- *		queued prior to unit going not-ready.
- *		not-ready status to those requests that are attempted
- *		before a new volume is inserted.  Once a new volume is
- *		inserted, would get good I/O's to wrong volume.
- *
- * CALLS:	iodone(),setqueue()
- *
- * CALLING ROUTINES:	fdread (indirectly, thru physio)
- *			fdwrite (indirectly, thru physio)
- *
- ****************************************************************************/
-fdstrategy(bp)
-struct buf *bp;	/* buffer header */
-{
-	unsigned	        bytes_left;
-	daddr_t			secno;
-	struct unit_info	*uip = &unit_info[UNIT(bp->b_dev)];
-	struct fddrtab		*dr = &uip->d_drtab;
-	struct fddrtab		*sdr;
-
-	bp->b_error = 0;
-	/* set b_resid to b_bcount because we haven't done anything yet */
-	bp->b_resid = bp->b_bcount;
-	if (!(dr->dr_type & OKTYPE) ||
-	    ((sdr = getparm(MEDIATYPE(bp->b_dev)))==(struct fddrtab *)ERROR) ||
-	    /* wrong parameters */
-	    (sdr->dr_ncyl != dr->dr_ncyl) || (sdr->dr_nsec != dr->dr_nsec) ||
-	    ((sdr->dr_type|OKTYPE) != dr->dr_type) ||
-	    (sdr->dr_rwgpl != dr->dr_rwgpl) ||
-	    (sdr->dr_fgpl != dr->dr_fgpl)) {
-		bp->b_flags |= B_ERROR;
-		bp->b_error = EIO;
-		biodone(bp);
-		return(0);
-	}
-	/*
-	 * Figure "secno" from b_blkno. Adjust sector # for partition.
-	 *
-	 * If reading just past the end of the device, it's
-	 * End of File.  If not reading, or if read starts further in
-	 * than the first sector after the partition, it's an error.
-	 *
-	 * secno is logical blockno / # of logical blocks per sector */
-	secno = (bp->b_blkno * NBPSCTR) >> 9;
-	if (secno >= dr->p_nsec) {
-		if (!((bp->b_flags & B_READ) && (secno == dr->p_nsec))){
-			/* off the deep end */
-			bp->b_flags |= B_ERROR;
-			bp->b_error = ENXIO;
-		}
-		biodone(bp);
-		return(0);
-	}
-/* At this point, it is no longer possible to directly return from strategy.
-   We now set b_resid to the number of bytes we cannot transfer because
-   they lie beyond the end of the request's partition.  This value is 0
-   if the entire request is within the partition. */
-	bytes_left = (dr->p_nsec - secno) << 9;
-	bp->b_resid = ((bp->b_bcount<=bytes_left)?0:(bp->b_bcount-bytes_left));
-	bp->b_pfcent = secno;
-	setqueue(bp, uip);
-	return(0);
-}
-
-/***************************************************************************
- *
- *	set queue to buffer
- *
- ***************************************************************************/
-setqueue(bp, uip)
-struct buf *bp;
-struct unit_info *uip;
-{
-	spl_t			x = SPL();
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct	fdcmd		*cmdp = uip->b_cmd;
-
-	openchk(cmdp);		/* openning check */
-	cmdp->c_devflag |= STRCHK;
-	fd_disksort(uip, bp);	/* queue the request */
-	/*
-	 * If no requests are in progress, start this one up.  Else
-	 * leave it on the queue, and fdintr will call m765io later.
-	 */
-	if(!cip->b_uip)
-		m765io(uip);
-	splx(x);
-}
-/***************************************************************************
- *
- *	check io_busy routine
- *
- ***************************************************************************/
-chkbusy(cmdp)
-struct	fdcmd	*cmdp;
-{
-	while(cmdp->c_devflag & STRCHK){
-		cmdp->c_devflag |= STRWAIT;
-		sleep(&cmdp->c_devflag,PZERO);
-	}
-}
-/***************************************************************************
- *
- *	check fdopen() routine
- *
- ***************************************************************************/
-openchk(cmdp)
-struct	fdcmd	*cmdp;
-{
-	while(cmdp->c_devflag & FDMCHK ){
-		cmdp->c_devflag |= FDWAIT;
-		sleep(&cmdp->c_devflag,PZERO);
-	}
-}
-/***************************************************************************
- *
- *	free fdopen() routine
- *
- ***************************************************************************/
-openfre(cmdp)
-struct	fdcmd	*cmdp;
-{
-	cmdp->c_devflag &= ~FDMCHK;
-	if(cmdp->c_devflag & FDWAIT){
-		cmdp->c_devflag &= ~FDWAIT;
-		wakeup(&cmdp->c_devflag);
-	}
-}
-/*****************************************************************************
- *
- * TITLE:	m765io
- *
- * ABSTRACT:	Start handling an I/O request.
- *
- ****************************************************************************/
-m765io(uip)
-struct unit_info *uip;
-{
-	extern int(m765iosub)();
-	register struct buf *bp;
-	struct ctrl_info *cip = &ctrl_info[uip->dev->ctlr];
-
-	bp = uip->av_forw; /*move bp to ctrl_info[ctrl].b_buf*/
-	cip->b_buf = bp;
-	cip->b_uip = uip;
-	cip->b_xferaddr  = bp->b_un.b_addr;
-	cip->b_xfercount = bp->b_bcount - bp->b_resid;
-	cip->b_sector    = bp->b_pfcent;
-	uip->b_cmd->c_stsflag |= MTRFLAG;
-	if(!mtr_start(uip))
-		timeout(m765iosub, uip, HZ);
-	else
-		m765iosub(uip);
-}
-/****************************************************************************
- *
- *	m765io subroutine
- *
- ****************************************************************************/
-m765iosub(uip)
-struct unit_info *uip;
-{
-	struct fddrtab		*dr = &uip->d_drtab;
-	int			startsec;
-	int			slave = uip->dev->slave;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct	fdcmd		*cmdp = uip->b_cmd;
-
-	rwcmdset(uip);
-	if(cip->b_buf->b_flags&B_FORMAT)
-		goto skipchk;
-	startsec = (cmdp->c_rwdata[3] * dr->dr_nsec) + cmdp->c_rwdata[4];
-	if(startsec+(cip->b_xfercount>>9)-1 > dr->dr_spc)
-		cip->b_xferdma = (dr->dr_spc-startsec+1) << 9;
-	else
-skipchk:	cip->b_xferdma = cip->b_xfercount;
-	if(!(cmdp->c_rbmtr & (1<<(RBSHIFT+slave))))
-       		cip->b_status = rbirate(uip);
-	else if(uip->b_seekaddr != cmdp->c_saddr)
-		cip->b_status = fdiseek(uip,cmdp->c_saddr);
-	else
-		cip->b_status = outicmd(uip);
-	if(cip->b_status)
-		intrerr0(uip);
-	return;
-}
-/***************************************************************************
- *
- *	read / write / format / verify command set to command table
- *
- ***************************************************************************/
-rwcmdset(uip)
-struct unit_info *uip;
-{
-	short			resid;
-	int			slave = uip->dev->slave;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct fdcmd		*cmdp = uip->b_cmd;
-
-	switch(cip->b_buf->b_flags&(B_FORMAT|B_VERIFY|B_READ|B_WRITE)){
-	case B_VERIFY|B_WRITE:	/* VERIFY after WRITE */
-		cmdp->c_rwdata[0] = RDMV;
-		break;
-	case B_FORMAT:
-		cmdp->c_dcount = FMTCNT;
-		cmdp->c_rwdata[0] = FMTM;
-		cmdp->c_saddr = cip->b_sector / uip->d_drtab.dr_spc;
-		resid = cip->b_sector % uip->d_drtab.dr_spc;
-		cmdp->c_rwdata[1] = slave|((resid/uip->d_drtab.dr_nsec)<<2);
-		cmdp->c_rwdata[2] =
-			((struct fmttbl *)cip->b_buf->b_un.b_addr)->s_type;
-		cmdp->c_rwdata[3] = uip->d_drtab.dr_nsec;
-		cmdp->c_rwdata[4] = uip->d_drtab.dr_fgpl;
-		cmdp->c_rwdata[5] = FMTDATA;
-		break;
-	case B_WRITE:
-	case B_READ:
-	case B_READ|B_VERIFY:
-		cmdp->c_dcount = RWCNT;
-		if(cip->b_buf->b_flags&B_READ)
-			if(cip->b_buf->b_flags&B_VERIFY)
-				cmdp->c_rwdata[0] = RDMV;
-			else
-				cmdp->c_rwdata[0] = RDM;
-		else
-			cmdp->c_rwdata[0] = WTM;	/* format or write */
-		resid = cip->b_sector % uip->d_drtab.dr_spc;
-		cmdp->c_rwdata[3] = resid / uip->d_drtab.dr_nsec;
-		cmdp->c_rwdata[1] = slave|(cmdp->c_rwdata[3]<<2);
-		cmdp->c_rwdata[2] = cmdp->c_saddr =
-			cip->b_sector / uip->d_drtab.dr_spc;
-		cmdp->c_rwdata[4] = (resid % uip->d_drtab.dr_nsec) + 1;
-		cmdp->c_rwdata[5] = 2;
-		cmdp->c_rwdata[6] = uip->d_drtab.dr_nsec;
-		cmdp->c_rwdata[7] = uip->d_drtab.dr_rwgpl;
-		cmdp->c_rwdata[8] = DTL;
-		D(printf("SET %x %x C%x H%x S%x %x %x %x %x ",
-			cmdp->c_rwdata[0], cmdp->c_rwdata[1],
-			cmdp->c_rwdata[2], cmdp->c_rwdata[3],
-			cmdp->c_rwdata[4], cmdp->c_rwdata[5],
-			cmdp->c_rwdata[6], cmdp->c_rwdata[7],
-			cmdp->c_rwdata[8]));
-		break;
-	}
-}
-/*****************************************************************************
- *
- * TITLE:	fdread
- *
- * ABSTRACT:	"Raw" read.  Use physio().
- *
- * CALLS:	m765breakup (indirectly, thru physio)
- *
- ****************************************************************************/
-fdread(dev, uio)
-register dev_t	dev;
-struct uio *uio;
-{
-#ifdef	MACH_KERNEL
-	/* no need for page-size restriction */
-	return (block_io(fdstrategy, minphys, uio));
-#else	/* MACH_KERNEL */
-	return(physio(fdstrategy,&fdrbuf[UNIT(dev)],dev,B_READ,fdminphys,uio));
-#endif	/* MACH_KERNEL */
-}
-/*****************************************************************************
- *
- * TITLE:	fdwrite
- *
- * ABSTRACT:	"Raw" write.  Use physio().
- *
- * CALLS:	m765breakup (indirectly, thru physio)
- *
- ****************************************************************************/
-fdwrite(dev, uio)
-register dev_t	dev;
-struct uio *uio;
-{
-#ifdef	MACH_KERNEL
-	/* no need for page-size restriction */
-	return (block_io(fdstrategy, minphys, uio));
-#else	/* MACH_KERNEL */
-	return(physio(fdstrategy,&fdrbuf[UNIT(dev)],dev,B_WRITE,fdminphys,uio));
-#endif	/* MACH_KERNEL */
-}
-/*****************************************************************************
- *
- * TITLE:	fdminphys
- *
- * ABSTRACT:	Trim buffer length if buffer-size is bigger than page size
- *
- * CALLS:	physio
- *
- ****************************************************************************/
-fdminphys(bp)
-struct buf	*bp;
-{
-	if (bp->b_bcount > PAGESIZ)
-		bp->b_bcount = PAGESIZ;
-}
-#ifdef	MACH_KERNEL
-/* IOC_OUT only and not IOC_INOUT */
-io_return_t fdgetstat(dev, flavor, data, count)
-	dev_t		dev;
-	int		flavor;
-	int *		data;		/* pointer to OUT array */
-	unsigned int	*count;		/* OUT */
-{
-	switch (flavor) {
-
-	/* Mandatory flavors */
-
-	case DEV_GET_SIZE: {
-		int ret;
-		struct disk_parms	p;
-
-		ret = fd_getparms(dev, &p);
-		if (ret) return ret;
-		data[DEV_GET_SIZE_DEVICE_SIZE] = p.dp_pnumsec * NBPSCTR;
-		data[DEV_GET_SIZE_RECORD_SIZE] = NBPSCTR;
-		*count = DEV_GET_SIZE_COUNT;
-		break;
-	}
-
-	/* Extra flavors */
-
-	case V_GETPARMS:
-		if (*count < sizeof (struct disk_parms)/sizeof (int))
-			return (D_INVALID_OPERATION);
-		*count = sizeof (struct disk_parms)/sizeof(int);
-		return (fd_getparms(dev, data));
-        default:
-		return (D_INVALID_OPERATION);
-	}
-}
-/* IOC_VOID or IOC_IN or IOC_INOUT */
-/*ARGSUSED*/
-io_return_t fdsetstat(dev, flavor, data, count)
-	dev_t		dev;
-	int		flavor;
-	int *		data;
-	unsigned int	count;
-{
-	int			unit = UNIT(dev);
-	switch (flavor) {
-	case V_SETPARMS:    /* Caller wants reset_parameters */
-		return(fd_setparms(unit,*(int *)data));
-	case V_FORMAT:
-		return(fd_format(dev,data));
-	case V_VERIFY:	/* cmdarg : 0 == no verify, 0 != verify */
-		m765verify[unit] = *(int *)data;
-		return(D_SUCCESS);
-	default:
-		return(D_INVALID_OPERATION);
-	}
-}
-
-/*
- *      Get block size
- */
-int
-fddevinfo(dev, flavor, info)
-dev_t   dev;
-int	flavor;
-char	*info;
-{
-	register struct	fddrtab	*dr;
-        register struct fdpart *p;
-	register int result = D_SUCCESS;
-
-	switch (flavor) {
-	case D_INFO_BLOCK_SIZE:
-		dr = &unit_info[UNIT(dev)].d_drtab;
-
-	        if(dr->dr_type & OKTYPE)
-        	        *((int *) info) =  512;
-		else
-			result = D_INVALID_OPERATION;
-
-		break;
-	default:
-		result = D_INVALID_OPERATION;
-	}
-
-        return(result);
-}
-#else	/* MACH_KERNEL */
-/*****************************************************************************
- *
- * TITLE:	fdioctl
- *
- * ABSTRACT:	m765 driver special functions.
- *
- * CALLING ROUTINES:	kernel
- *
- ****************************************************************************/
-int
-fdioctl(dev, cmd, cmdarg, flag)
-dev_t	dev;		/* major, minor numbers */
-int	cmd;		/* command code */
-int	*cmdarg;	/* user structure with parameters */
-int	flag;		/* not used */
-{
-	register unsigned 	unit = UNIT(dev);
-	switch (cmd) {
-	case V_SETPARMS:    /* Caller wants reset_parameters */
-		return(fd_setparms(unit,*cmdarg));
-	case V_GETPARMS:    /* Caller wants device parameters */
-		return(fd_getparms(dev,cmdarg));
-	case V_FORMAT:
-		return(fd_format(dev,cmdarg));
-	case V_VERIFY:	/* cmdarg : 0 == no verify, 0 != verify */
-		m765verify[unit] = *cmdarg;
-		return(0);
-	}
-	return(EINVAL);
-}
-#endif	/* MACH_KERNEL */
-/****************************************************************************
- *
- *	set fd parameters
- *
- ****************************************************************************/
-int
-fd_setparms(unit, cmdarg)
-register unsigned int unit;
-long cmdarg;
-{
-	struct fddrtab	 *fdparm;
-	spl_t		 x;
-	struct unit_info *uip = &unit_info[unit];
-	struct	fdcmd	 *cmdp = uip->b_cmd;
-
-	cmdp->c_rbmtr &= ~(1<<(RBSHIFT+uip->dev->slave));
-	if ((fdparm = getparm(MEDIATYPE(cmdarg))) == (struct fddrtab *)ERROR)
-	        return(EINVAL);
-	x = SPL();
-	openchk(cmdp);
-	cmdp->c_devflag |= FDMCHK;
-	chkbusy(cmdp);
-	m765sweep(uip, fdparm);
-	uip->d_drtab.dr_type |= OKTYPE;
-	openfre(cmdp);
-	splx(x);
-	return(0);
-}
-/****************************************************************************
- *
- *	get fd parameters
- *
- ****************************************************************************/
-int
-fd_getparms(dev,cmdarg)
-dev_t	dev;		/* major, minor numbers */
-int	*cmdarg;
-{
-	struct disk_parms	*diskp = (struct disk_parms *)cmdarg;
-	register struct	fddrtab	*dr = &unit_info[UNIT(dev)].d_drtab;
-
-	if(dr->dr_type & OKTYPE){
-		diskp->dp_type = DPT_FLOPPY;
-		diskp->dp_heads = 2;
-		diskp->dp_sectors = dr->dr_nsec;
-		diskp->dp_pstartsec = 0;
-		diskp->dp_cyls = dr->dr_ncyl;
-		diskp->dp_pnumsec = dr->p_nsec;
-		return(0);
-	}
-	return(ENXIO);
-}
-/****************************************************************************
- *
- *	format command
- *
- ****************************************************************************/
-fd_format(dev,cmdarg)
-dev_t	dev;		/* major, minor numbers */
-int	*cmdarg;
-
-{
-	register struct buf	*bp;
-	register daddr_t	track;
-	union  io_arg		*varg;
-	u_short			num_trks;
-	register struct	fddrtab	*dr = &unit_info[UNIT(dev)].d_drtab;
-
-	if(!(dr->dr_type & OKTYPE))
-		return(EINVAL);
-	varg = (union io_arg *)cmdarg;
-	num_trks = varg->ia_fmt.num_trks;
-	track = (daddr_t)(varg->ia_fmt.start_trk*dr->dr_nsec);
-	if((track + (num_trks*dr->dr_nsec))>dr->p_nsec)
-		return(EINVAL);
-	bp = geteblk(BLKSIZE);		/* get struct buf area */
-	while (num_trks>0) {
-		bp->b_flags &= ~B_DONE;
-		bp->b_dev = dev;
-		bp->b_error = 0; bp->b_resid = 0;
-		bp->b_flags = B_FORMAT;
-		bp->b_bcount = dr->dr_nsec * FMTID;
-		bp->b_blkno = (daddr_t)((track << 9) / NBPSCTR);
-		if(makeidtbl(bp->b_un.b_addr,dr,
-			     varg->ia_fmt.start_trk++,varg->ia_fmt.intlv))
-			return(EINVAL);
-		fdstrategy(bp);
-		biowait(bp);
-		if(bp->b_error)
-			if((bp->b_error == (char)EBBHARD) ||
-			   (bp->b_error == (char)EBBSOFT))
-				return(EIO);
-			else
-				return(bp->b_error);
-		num_trks--;
-		track += dr->dr_nsec;
-	}
-	brelse(bp);
-	return(0);
-}
-/****************************************************************************
- *
- *	make id table for format
- *
- ****************************************************************************/
-makeidtbl(tblpt,dr,track,intlv)
-struct fmttbl *tblpt;
-struct fddrtab *dr;
-unsigned short track;
-unsigned short intlv;
-{
-	register int	i,j,secno;
-
-	if(intlv >= dr->dr_nsec)
-		return(1);
-	for(i=0; i<dr->dr_nsec; i++)
-		tblpt[i].sector = 0;
-	for(i=0,j=0,secno=1; i<dr->dr_nsec; i++){
-		tblpt[j].cyl = track >> 1;
-		tblpt[j].head = track & 1;
-		tblpt[j].sector = secno++;
-		tblpt[j].s_type = 2;
-		if((j+=intlv) < dr->dr_nsec)
-			continue;
-		for(j-=dr->dr_nsec; j < dr->dr_nsec ; j++)
-			if(!tblpt[j].sector)
-				break;
-	}
-	return(0);
-}
-/*****************************************************************************
- *
- * TITLE:	fdintr
- *
- * ABSTRACT:	Handle interrupt.
- *
- *	Interrupt procedure for m765 driver.  Gets status of last
- *	operation and performs service function according to the
- *	type of interrupt.  If it was an operation complete interrupt,
- *	switches on the current driver state and either declares the
- *	operation done, or starts the next operation
- *
- ****************************************************************************/
-fdintr(ctrl)
-int	ctrl;
-{
-	extern			int(m765intrsub)();
-	struct unit_info 	*uip = ctrl_info[ctrl].b_uip;
-	struct unit_info 	*wup = ctrl_info[ctrl].b_wup;
-	struct fdcmd		*cmdp = &ctrl_info[ctrl].b_cmd;
-	if(cmdp->c_stsflag & INTROUT)
-		untimeout(fdintr, ctrl);
-	cmdp->c_stsflag &= ~INTROUT;
-	switch(cmdp->c_intr){
-	case RWFLAG:
-		rwintr(uip);
-		break;
-	case SKFLAG:
-	case SKEFLAG|SKFLAG:
-	case RBFLAG:
-		timeout(m765intrsub, uip, SEEKWAIT);
-		break;
-	case WUPFLAG:
-		cmdp->c_intr &= ~WUPFLAG;
-		wakeup(wup);
-	}
-	return(0);
-}
-/*****************************************************************************
- *
- *	interrup subroutine (seek recalibrate)
- *
- *****************************************************************************/
-m765intrsub(uip)
-struct unit_info *uip;
-{
-	struct ctrl_info *cip = &ctrl_info[uip->dev->ctlr];
-
-	if((cip->b_status = sis(uip))!=  ST0OK)
-		switch(uip->b_cmd->c_intr){
-		case SKFLAG:
-			seekintr(uip);
-			break;
-		case SKEFLAG|SKFLAG:
-			seekintre(uip);
-			break;
-		case RBFLAG:
-			rbintr(uip);
-		}
-}
-/*****************************************************************************
- *
- *	read / write / format / verify interrupt routine
- *
- *****************************************************************************/
-rwintr(uip)
-struct unit_info *uip;
-{
-	int			rsult[7];
-	register int		rtn, count;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct fdcmd		*cmdp = uip->b_cmd;
-
-	cmdp->c_intr &= ~RWFLAG;
-	if((cip->b_buf->b_flags&(B_READ|B_VERIFY))!=(B_READ|B_VERIFY))
-		if(inb(VFOREG(uip->addr))&OPENBIT){
-			if(cip->b_buf->b_flags&B_FORMAT){
-				cip->b_status = TIMEOUT;
-				intrerr0(uip);
-			} else {
-				if((inb(STSREG(uip->addr))&ST0OK)!=ST0OK)
-					printf("%s %d : %s\n",
-						fderr,
-						uip-unit_info,
-						fdmsg[DOORERR]);
-				rstout(uip);
-				specify(uip);
-				cmdp->c_rbmtr &= RBRST;
-				cmdp->c_intr |= SKEFLAG;
-				if(cmdp->c_saddr > 2)
-					fdiseek(uip, cmdp->c_saddr-2);
-				else
-					fdiseek(uip, cmdp->c_saddr+2);
-			}
-			return;
-		}
-	for( count = 0 ; count < 7 ; count++ ){
-		if(rtn = fdc_sts(FD_ISTS, uip))	/* status check */
-			goto rwend;
-		rsult[count] = inb(DATAREG(uip->addr));
-	}
-	rtn = 0;
-	if(rsult[0]&0xc0){
-		rtn = cmdp->c_rwdata[0]<<8;
-		if(rsult[0]&0x80){ rtn |= FDCERR;   goto rwend; }
-		if(rsult[1]&0x80){ rtn |= NOREC;    goto rwend; }
-		if(rsult[1]&0x20){ rtn |= CRCERR;   goto rwend; }
-		if(rsult[1]&0x10){ rtn |= OVERRUN;  goto rwend; }
-		if(rsult[1]&0x04){ rtn |= NOREC;    goto rwend; }
-		if(rsult[1]&0x02){ rtn |= WTPRT;    goto rwend; }
-		if(rsult[1]&0x01){ rtn |= ADDRERR;  goto rwend; }
-		rtn |= FDCERR;
-rwend:		outb(0x0a, 0x06);
-	}
-	if(cip->b_status = rtn) {
-		D(printf("\n->rwierr %x ", rtn));
-		rwierr(uip);
-	} else { /* write command */
-		if(((cip->b_buf->b_flags&(B_FORMAT|B_READ|B_WRITE))==B_WRITE)
-		   && !(cip->b_buf->b_flags & B_VERIFY)) {
-			D(printf("->w/v "));
-			cip->b_buf->b_flags |= B_VERIFY;
-			rwcmdset(uip);
-			if(cip->b_status = outicmd(uip))
-				intrerr0(uip);
-			return;
-		}
-		/* clear retry count */
-		if (cip->usebuf) {
-			bcopy(cip->b_vbuf, cip->b_xferaddr, cip->b_xferdma);
-			DD(printf("R(%x, %x, %x)\n",
-				cip->b_vbuf, cip->b_xferaddr, cip->b_xferdma));
-		}
-		cip->b_buf->b_flags &= ~B_VERIFY;
-		cip->b_rwerr = cip->b_seekerr = cip->b_rberr = 0;
-		cip->b_xfercount -= cip->b_xferdma;
-		cip->b_xferaddr += cip->b_xferdma;
-		cip->b_sector = cip->b_sector+(cip->b_xferdma>>9);
-		D(printf("->done%s\n", cip->b_xfercount?"":"." ));
-		/* next address (cyl,head,sec) */
-		if((int)cip->b_xfercount>0)
-			m765iosub(uip);
-		else
-			quechk(uip);
-	}
-}
-/*****************************************************************************
- *
- *	read / write / format / verify error routine
- *
- *****************************************************************************/
-rwierr(uip)
-struct unit_info *uip;
-{
-	short			status;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct	fdcmd		*cmdp = uip->b_cmd;
-
-	D(printf("%x-%x-%x ", cip->b_rwerr&SRMASK, cip->b_rwerr&MRMASK, cip->b_rwerr&LRMASK));
-	if((cip->b_buf->b_flags&(B_READ|B_VERIFY))==(B_READ|B_VERIFY)){
-		if((cip->b_rwerr&SRMASK)<MEDIARD)
-			goto rwrtry;
-		if((cip->b_rwerr&MRMASK)<MEDIASEEK)
-			goto rwseek;
-		goto rwexit;
-	} else
-		if(cip->b_buf->b_flags&B_VERIFY){
-			cip->b_buf->b_flags &= ~B_VERIFY;
-			rwcmdset(uip);
-		}
-rwrtry:	status = cip->b_status;
-	if((++cip->b_rwerr&SRMASK)<SRETRY)
-		cip->b_status = outicmd(uip);
-	else {
-rwseek:		cip->b_rwerr = (cip->b_rwerr&RMRMASK)+MINC;
-		if((cip->b_rwerr&MRMASK)<MRETRY){
-			cmdp->c_intr |= SKEFLAG;
-			if(cmdp->c_saddr > 2)
-				cip->b_status=fdiseek(uip,cmdp->c_saddr-2);
-			else
-				cip->b_status=fdiseek(uip,cmdp->c_saddr+2);
-		} else {
-			cip->b_rwerr = (cip->b_rwerr&LRMASK)+LINC;
-			if((cip->b_rwerr&LRMASK)<LRETRY)
-       				cip->b_status=rbirate(uip);
-		}
-	}
-	if(cip->b_status){
-		D(printf("ERR->intrerr0 "));
-		cip->b_status = status;
-rwexit:		intrerr0(uip);
-	}
-}
-/*****************************************************************************
- *
- *	recalibrate interrupt routine
- *
- *****************************************************************************/
-rbintr(uip)
-struct unit_info *uip;
-{
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct fdcmd		*cmdp = uip->b_cmd;
-
-	cmdp->c_intr &= ~RBFLAG;
-	if(cip->b_status) {
-		if(++cip->b_rberr<SRETRY)
-			cip->b_status = rbirate(uip);
-	} else {
-		cmdp->c_rbmtr |= 1<<(RBSHIFT+uip->dev->slave);
-		uip->b_seekaddr = 0;
-		cip->b_rberr = 0;
-		cip->b_status=fdiseek(uip, cmdp->c_saddr);
-	}
-	if(cip->b_status)
-		intrerr0(uip);
-}
-/******************************************************************************
- *
- *	seek interrupt routine
- *
- *****************************************************************************/
-seekintr(uip)
-struct unit_info *uip;
-{
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct fdcmd		*cmdp = uip->b_cmd;
-
-	cmdp->c_intr &= ~SKFLAG;
-	if(cip->b_status)
-		seekierr(uip, cmdp->c_saddr);
-	else {
-		uip->b_seekaddr = cmdp->c_saddr;
-		cip->b_status = outicmd(uip);
-	}
-	if(cip->b_status)
-		intrerr0(uip);
-	else
-		cip->b_seekerr = 0;
-}
-/*****************************************************************************
- *
- *	seek error retry interrupt routine
- *
- *****************************************************************************/
-seekintre(uip)
-struct unit_info *uip;
-{
-	register char		seekpoint;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct fdcmd		*cmdp = uip->b_cmd;
-
-	cmdp->c_intr &= ~(SKEFLAG|SKFLAG);
-	if(cmdp->c_saddr > 2)
-		seekpoint = cmdp->c_saddr-2;
-	else
-		seekpoint = cmdp->c_saddr+2;
-	if(cip->b_status)
-		seekierr(uip, seekpoint);
-	else {
-		uip->b_seekaddr = seekpoint;
-		cip->b_status = fdiseek(uip, cmdp->c_saddr);
-	}
-	if(cip->b_status)
-		intrerr0(uip);
-	else
-		cip->b_seekerr = 0;
-}
-/*****************************************************************************
- *
- *	seek error routine
- *
- *****************************************************************************/
-seekierr(uip, seekpoint)
-struct unit_info *uip;
-register char		seekpoint;
-{
-	struct ctrl_info *cip = &ctrl_info[uip->dev->ctlr];
-
-	if((++cip->b_seekerr&SRMASK)<SRETRY)
-		cip->b_status=fdiseek(uip, seekpoint);
-	else {
-		cip->b_seekerr = (cip->b_seekerr&MRMASK) + MINC;
-		if((cip->b_seekerr&MRMASK)<MRETRY)
-			cip->b_status=rbirate(uip);
-	}
-	if(cip->b_status)
-		intrerr0(uip);
-}
-/*****************************************************************************
- *
- * TITLE:	m765sweep
- *
- * ABSTRACT:	Perform an initialization sweep.
- *
- **************************************************************************/
-m765sweep(uip, cdr)
-struct unit_info *uip;
-register struct fddrtab  *cdr;	/* device initialization data */
-{
-	register struct fddrtab *dr = &uip->d_drtab;
-
-	dr->dr_ncyl = cdr->dr_ncyl;
-	dr->dr_nsec = cdr->dr_nsec;
-	dr->dr_spc  = cdr->dr_spc;
-	dr->p_nsec  = cdr->p_nsec;
-	dr->dr_type = cdr->dr_type;
-	dr->dr_rwgpl= cdr->dr_rwgpl;
-	dr->dr_fgpl = cdr->dr_fgpl;
-}
-/*****************************************************************************
- *
- *  TITLE:  m765disksort
- *
- *****************************************************************************/
-fd_disksort(uip, bp)
-struct unit_info *uip;		/*  Pointer to head of active queue	*/
-register struct buf *bp;	/*  Pointer to buffer to be inserted	*/
-{
-	register struct buf *bp2; /*  Pointer to next buffer in queue	*/
-	register struct buf *bp1; /*  Pointer where to insert buffer	*/
-
-	if (!(bp1 = uip->av_forw)) {
-		/* No other buffers to compare against */
-		uip->av_forw = bp;
-		bp->av_forw = 0;
-		return;
-	}
-	bp2 = bp1->av_forw;
-	while(bp2 && (relative(bp1->b_pfcent,bp->b_pfcent) >=
-		      relative(bp1->b_pfcent,bp2->b_pfcent))) {
-		bp1 = bp2;
-		bp2 = bp1->av_forw;
-	}
-	bp1->av_forw = bp;
-	bp->av_forw = bp2;
-}
-/*****************************************************************************
- *
- *	Set Interrupt error and FDC reset
- *
- *****************************************************************************/
-intrerr0(uip)
-struct unit_info *uip;
-{
-	struct buf		*bp; /* Pointer to next buffer in queue	*/
-	int			resid;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct	fdcmd		*cmdp = uip->b_cmd;
-	register struct	fddrtab *dr = &uip->d_drtab;
-
-	if((cip->b_buf->b_flags&(B_READ|B_VERIFY))!=(B_READ|B_VERIFY)){
-		resid = cip->b_xfercount = cip->b_xferdma-1-inb(DMACNT)*0x101;
-		resid = (cip->b_sector + (resid>>9)) % dr->dr_spc;
-		printf("%s %d : %s\n",
-			fderr,
-			uip->dev->slave,
-			fdmsg[cip->b_status&BYTEMASK]);
-		printf("cylinder = %d  ",cmdp->c_saddr);
-		printf("head = %d  sector = %d  byte/sec = %d\n",
-		resid / dr->dr_nsec , (resid % dr->dr_nsec)+1 , 512);
-	}
-	cip->b_rwerr = cip->b_seekerr = cip->b_rberr = 0;
-	cmdp->c_intr = CMDRST;
-	if(((cip->b_buf->b_flags&(B_READ|B_VERIFY))!=(B_READ|B_VERIFY)) &&
-	   uip->dev->slave)
-		dr->dr_type &= ~OKTYPE;
-	bp = cip->b_buf;
-	bp->b_flags |= B_ERROR;
-	switch(cip->b_status&BYTEMASK){
-	case ADDRERR:
-	case OVERRUN:
-	case FDCERR:
-	case TIMEOUT:
-		bp->b_error = EIO;
-		break;
-	case WTPRT:
-#ifdef MACH_KERNEL
-		bp->b_error = ENXIO;
-#else
-		bp->b_error = ENODEV;
-#endif
-		break;
-	case NOREC:
-		bp->b_error = EBBHARD;
-		break;
-	case CRCERR:
-		bp->b_error = EBBSOFT;
-	}
-	rstout(uip);
-	specify(uip);
-	cmdp->c_rbmtr &= RBRST;
-	quechk(uip);
-}
-/*****************************************************************************
- *
- *	Next queue check routine
- *
- *****************************************************************************/
-quechk(uip)
-struct unit_info *uip;
-{
-	register struct	buf 	*bp = uip->av_forw;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct unit_info        *loop;
-	struct fdcmd		*cmdp = uip->b_cmd;
-	/* clear retry count */
-	cip->b_rwerr = cip->b_seekerr = cip->b_rberr = 0;
-	bp->b_resid = bp->b_resid + cip->b_xfercount;
-	uip->av_forw=bp->av_forw;
-	if (!uip->av_forw && uip->wakeme) {
-		uip->wakeme = 0;
-		wakeup(uip);
-	}
-	biodone(bp);
-	loop = uip;
-	do {
-		loop=loop->b_unitf;
-		if (loop->av_forw) {
-			m765io(loop);
-			return;
-		}
-	} while (loop!=uip);
-	cip->b_uip = 0;
-	cmdp->c_stsflag &= ~MTRFLAG;
-	mtr_on(uip);
-	cmdp->c_devflag &= ~STRCHK;
-	if(cmdp->c_devflag & STRWAIT){
-		cmdp->c_devflag &= ~STRWAIT;
-		wakeup(&cmdp->c_devflag);
-	}
-}
-fdprint(dev,str)
-dev_t	dev;
-char	*str;
-{
-	printf("floppy disk driver: %s on bad dev %d, partition %d\n",
-			str, UNIT(dev), 0);
-}
-fdsize()
-{
-	printf("fdsize()	-- not implemented\n");
-}
-fddump()
-{
-	printf("fddump()	-- not implemented\n");
-}
-/*****************************************************************************
- *
- *	fdc reset routine
- *
- *****************************************************************************/
-rstout(uip)
-struct unit_info *uip;
-{
-	register int	outd;
-
-	outd = ((uip->b_cmd->c_rbmtr&MTRMASK)<<MTR_ON)|uip->dev->slave;
-	outb(CTRLREG(uip->addr), outd);
-	outd |= FDC_RST;
-	outb(CTRLREG(uip->addr), outd);
-	outd |= DMAREQ;
-	outb(CTRLREG(uip->addr), outd);
-}
-/*****************************************************************************
- *
- *	specify command routine
- *
- *****************************************************************************/
-specify(uip)
-struct unit_info *uip;
-{
-	/* status check */
-	if(fdc_sts(FD_OSTS, uip))
-		return;
-	/* Specify command */
-	outb(DATAREG(uip->addr), SPCCMD);
-	/* status check */
-	if(fdc_sts(FD_OSTS, uip))
-		return;
-	/* Step rate,Head unload time */
-	outb(DATAREG(uip->addr), SRTHUT);
-	/* status check */
-	if(fdc_sts(FD_OSTS, uip))
-		return;
-	/* Head load time,Non DMA Mode*/
-	outb(DATAREG(uip->addr), HLTND);
-	return;
-}
-/****************************************************************************
- *
- *	recalibrate command routine
- *
- ****************************************************************************/
-rbrate(mtype,uip)
-char	 mtype;
-struct unit_info *uip;
-{
-	register int	rtn = 1, rty_flg=2;
-	spl_t		x;
-	struct	fdcmd	*cmdp = uip->b_cmd;
-
-	rbskrate(uip, mtype);			/* set transfer rate */
-	while((rty_flg--)&&rtn){
-		if(rtn = fdc_sts(FD_OSTS, uip))	/* status check */
-			break;
-		/*recalibrate command*/
-		outb(DATAREG(uip->addr), RBCMD);
-		if(rtn = fdc_sts(FD_OSTS, uip))	/* status check */
-			break;
-		/* Device to wake up specified in open */
-		cmdp->c_intr |= WUPFLAG;
-		x = SPL();
-		outb(DATAREG(uip->addr), uip->dev->slave);
-		rtn = ERROR;
-		while(rtn) {
-			uip->wakeme = 1;
-			sleep(uip, PZERO);
-			if((rtn = sis(uip)) == ST0OK)
-			  /* Device to wake up specified in open */
-				cmdp->c_intr |= WUPFLAG;
-			else
-				break;
-		}
-		splx(x);
-	}
-	return(rtn);
-}
-/*****************************************************************************
- *
- *	seek command routine
- *
- ****************************************************************************/
-fdseek(mtype, uip, cylno)
-register char	mtype;
-struct unit_info *uip;
-register int	cylno;
-{
-	spl_t		x;
-	int		rtn;
-	struct	fdcmd	*cmdp = uip->b_cmd;
-
-	rbskrate(uip, mtype);
-	if(rtn = fdc_sts(FD_OSTS, uip))			/* status check */
-		return(rtn);
-	outb(DATAREG(uip->addr), SEEKCMD);		/* seek command */
-	if(rtn = fdc_sts(FD_OSTS, uip))			/* status check */
-		return(rtn);
-	outb(DATAREG(uip->addr), uip->dev->slave);	/* drive number */
-	if(rtn = fdc_sts(FD_OSTS, uip))			/* status check */
-		return(rtn);
-	x = SPL();
-	/* Device to wake up specified in open */
-	cmdp->c_intr |= WUPFLAG;
-	outb(DATAREG(uip->addr), cylno);		/* seek count */
-	rtn = ERROR;
-	while(rtn){
-		uip->wakeme = 1;
-		sleep(uip, PZERO);
-		if((rtn = sis(uip)) == ST0OK)
-		  /* Device to wake up specified in open */
-			cmdp->c_intr |= WUPFLAG;
-		else
-			break;
-	}
-	splx(x);
-	return(rtn);
-}
-/*****************************************************************************
- *
- *	seek commnd routine(use interrupt)
- *
- *****************************************************************************/
-fdiseek(uip, cylno)
-struct unit_info *uip;
-int	cylno;
-{
-	register int	rtn;
-
-	D(printf("SK %x ", cylno));
-	rbskrate(uip, uip->d_drtab.dr_type);/* set transfer rate */
-	if(rtn = fdc_sts(FD_OSTS, uip))		/* status check */
-		goto fdiend;
-	outb(DATAREG(uip->addr), SEEKCMD);	/* seek command */
-	if(rtn = fdc_sts(FD_OSTS, uip))		/* status check */
-		goto fdiend;
-	outb(DATAREG(uip->addr), uip->dev->slave);	/* drive number */
-	if(rtn = fdc_sts(FD_OSTS, uip))		/* status check */
-		goto fdiend;
-	uip->b_seekaddr = cylno;
-	if(uip->d_drtab.dr_type&DOUBLE)
-		cylno = cylno * 2;
-	uip->b_cmd->c_intr |= SKFLAG;
-	outb(DATAREG(uip->addr), cylno);	/* seek count */
-fdiend:
-	if(rtn)
-		rtn |= SEEKCMD<<8;
-	return(rtn);
-}
-/*****************************************************************************
- *
- *	recalibrate command routine(use interrupt)
- *
- *****************************************************************************/
-rbirate(uip)
-struct unit_info *uip;
-{
-	register int	rtn;
-
-	rbskrate(uip, uip->d_drtab.dr_type);/* set transfer rate */
-	if(!(rtn = fdc_sts(FD_OSTS, uip))) {		/* status check */
-		/* recalibrate command */
-		outb(DATAREG(uip->addr), RBCMD);
-		if(!(rtn = fdc_sts(FD_OSTS, uip))) {	/* status check */
-			uip->b_cmd->c_intr |= RBFLAG;
-			outb(DATAREG(uip->addr), uip->dev->slave);
-		}
-	}
-	return(rtn ? rtn|RBCMD<<8 : 0);
-}
-/*****************************************************************************
- *
- *	read / write / format / verify command out routine(use interrupt)
- *
- *****************************************************************************/
-outicmd(uip)
-struct unit_info *uip;
-{
-	int			rtn;
-	register int		*data,cnt0,dmalen;
-	register long		address;
-	struct ctrl_info	*cip = &ctrl_info[uip->dev->ctlr];
-	struct fdcmd		*cmdp = uip->b_cmd;
-	spl_t			 x = splhi();
-
-	outb(DMACMD1,DMADATA0);	/* DMA #1 command register 	*/
-	outb(DMAMSK1,DMADATA1);	/* DMA #1 all mask register	*/
-	/* Perhaps outb(0x0a,0x02); might work better on line above? */
-	switch(cmdp->c_rwdata[0]){
-	case RDM:
-		D(printf("RDM"));
-		outb(DMABPFF,DMARD);
-		outb(DMAMODE,DMARD);
-		break;
-	case WTM:
-	case FMTM:
-		D(printf("W"));
-		outb(DMABPFF,DMAWT);
-		outb(DMAMODE,DMAWT);
-		break;
-	case RDMV:
-		D(printf("RDMV"));
-		outb(DMABPFF,DMAVRF);
-		outb(DMAMODE,DMAVRF);
-	}
-	/* get work buffer physical address */
-	address = kvtophys(cip->b_xferaddr);
-	dmalen = i386_trunc_page(address) + I386_PGBYTES - address;
-	if ( (cip->b_rwerr&MRMASK) >= 0x10)
-		dmalen = 0x200;
-	if (dmalen<=cip->b_xferdma)
-		cip->b_xferdma = dmalen;
-	else
-		dmalen = cip->b_xferdma;
-	if (address >= FdDmaThreshold) {
-		DD(printf(">(%x[%x], %x[%x] L%x\n",
-			address, cip->b_pbuf,
-			cip->b_xferaddr, cip->b_vbuf, dmalen));
-		if (!FdDmaEISA) {
-			cip->usebuf = 1;
-			address = (long)cip->b_pbuf;
-			if (cmdp->c_rwdata[0] == WTM || cmdp->c_rwdata[0] == FMTM) {
-				bcopy(cip->b_xferaddr, cip->b_vbuf, dmalen);
-				DD(printf("W(%x, %x, %x)\n",
-					cip->b_xferaddr, cip->b_vbuf, dmalen));
-			}
-		} else
-			cip->usebuf = 0;
-	} else
-		cip->usebuf = 0;
-	D(printf(" %x L%x ", address, dmalen));
-	/* set buffer address */
-	outb(DMAADDR,(int)address&BYTEMASK);
-	outb(DMAADDR,(((int)address>>8)&BYTEMASK));
-	outb(DMAPAGE,(((int)address>>16)&BYTEMASK));
-	if (FdDmaEISA)
-		outb(FdDmaEISA+DMAPAGE-0x80,(((int)address>>24)&BYTEMASK));
-	/* set transfer count */
-	outb(DMACNT,(--dmalen)&BYTEMASK);
-	outb(DMACNT,((dmalen>>8)&BYTEMASK));
-	outb(DMAMSK,CHANNEL2);
-	splx(x);
-	trfrate(uip, uip->d_drtab.dr_type);	/* set transfer rate */
-	data = &cmdp->c_rwdata[0];
-	for(cnt0 = 0; cnt0<cmdp->c_dcount; cnt0++,data++){
-		if(rtn = fdc_sts(FD_OSTS, uip))	/*status check*/
-			break;
-		outb(DATAREG(uip->addr), *data);
-	}
-	if(!rtn){
-		cmdp->c_intr |= RWFLAG;
-		cmdp->c_stsflag |= INTROUT;
-		cnt0 = ((cip->b_buf->b_flags&(B_READ|B_VERIFY)) ==
-			(B_READ|B_VERIFY))?TOUT:ITOUT;
-#ifdef	MACH_KERNEL
-		timeout(fdintr,uip->dev->ctlr,cnt0);
-#else	/* MACH_KERNEL */
-		cmdp->c_timeid = timeout(fdintr,uip->dev->ctlr,cnt0);
-#endif	/* MACH_KERNEL */
-	}
-	return(rtn);
-}
-/*****************************************************************************
- *
- *	sense interrupt status routine
- *
- *****************************************************************************/
-sis(uip)
-struct unit_info *uip;
-{
-	register int	rtn, st0;
-
-	if(rtn = fdc_sts(FD_OSTS, uip))	/* status check */
-		return(rtn);
-	outb(DATAREG(uip->addr), SISCMD);
-	if(rtn = fdc_sts(FD_ISTS, uip))	/* status check */
-		return(rtn);
-	st0 = inb(DATAREG(uip->addr)) & ST0OK;	/* get st0 */
-	if(rtn = fdc_sts(FD_ISTS, uip))	/* status check */
-		return(rtn);
-	inb(DATAREG(uip->addr));	/* get pcn */
-	if (st0&(ST0AT|ST0IC))
-		st0 = FDCERR;
-	return(st0);
-}
-
-/*****************************************************************************
- *
- *	fdc status get routine
- *
- *****************************************************************************/
-fdc_sts(mode, uip)
-register int	mode;
-struct unit_info *uip;
-{
-	register int 	ind;
-	int		cnt0 = STSCHKCNT;
-
-	while(cnt0--)
-		if(((ind=inb(STSREG(uip->addr))) & DATAOK) &&
-		   ((ind & DTOCPU) == mode))
-			return(0);
-	return(TIMEOUT);
-}
-/*****************************************************************************
- *
- *	motor on routine
- *
- *****************************************************************************/
-mtr_on(uip)
-struct unit_info *uip;
-{
-	extern		int(mtr_off)();
-	extern		int(wakeup)();
-	struct	fdcmd	*cmdp = uip->b_cmd;
-
-	if(!(mtr_start(uip))){
-		timeout(wakeup,&cmdp->c_stsflag,HZ);
-		sleep(&cmdp->c_stsflag,PZERO);
-	}
-	cmdp->c_stsflag |= MTROFF;
-#ifdef	MACH_KERNEL
-	timeout(mtr_off,uip,MTRSTOP);
-#else	/* MACH_KERNEL */
-	cmdp->c_mtrid = timeout(mtr_off,uip,MTRSTOP);
-#endif	/* MACH_KERNEL */
-}
-/*****************************************************************************
- *
- *	motor start routine
- *
- *****************************************************************************/
-mtr_start(uip)
-struct unit_info *uip;
-{
-	int		status;
-	int		(mtr_off)();
-	struct	fdcmd	*cmdp = uip->b_cmd;
-	int		slave = uip->dev->slave;
-	if(cmdp->c_stsflag & MTROFF){
-		untimeout(mtr_off, uip);
-		cmdp->c_stsflag &= ~MTROFF;
-	}
-	status = cmdp->c_rbmtr&(1<<slave);
-	cmdp->c_rbmtr |= (1<<slave);
-	outb(CTRLREG(uip->addr), ((cmdp->c_rbmtr&MTRMASK)<<MTR_ON)|
-				     FDC_RST|slave|DMAREQ);
-	return(status);
-}
-/*****************************************************************************
- *
- *	motor off routine
- *
- *****************************************************************************/
-mtr_off(uip)
-struct unit_info *uip;
-{
-	struct	fdcmd	*cmdp = uip->b_cmd;
-
-	cmdp->c_stsflag &= ~MTROFF;
-	if(!(cmdp->c_stsflag&MTRFLAG)){
-		cmdp->c_rbmtr &= MTRRST;
-		outb(CTRLREG(uip->addr), FDC_RST | DMAREQ);
-	}
-}
-
-#endif
diff --git a/i386/i386at/fdreg.h b/i386/i386at/fdreg.h
deleted file mode 100644
index 98d8d00..0000000
--- a/i386/i386at/fdreg.h
+++ /dev/null
@@ -1,368 +0,0 @@
-/* 
- * Mach Operating System
- * Copyright (c) 1993,1991,1990,1989 Carnegie Mellon University
- * All Rights Reserved.
- * 
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
- * Carnegie Mellon requests users of this software to return to
- * 
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Science
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
- * 
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-/*
-  Copyright 1988, 1989 by Intel Corporation, Santa Clara, California.
-
-		All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and
-its documentation for any purpose and without fee is hereby
-granted, provided that the above copyright notice appears in all
-copies and that both the copyright notice and this permission notice
-appear in supporting documentation, and that the name of Intel
-not be used in advertising or publicity pertaining to distribution
-of the software without specific, written prior permission.
-
-INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
-INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
-IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
-CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
-LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
-NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-/*	Copyright (c) 1987, 1988 TOSHIBA Corp.		*/
-/*		All Rights Reserved			*/
-
-#ident  "@(#)m765.h	1.13 - 88/02/17"
-
-/*******************************************************************
- *
- *	 Toshiba Floppy Driver for UNIX System V R3
- *
- *					June 21, 1988 
- *
- *	Intended Drive Units:
- *		Worldwide - Model No. ND-356  3.5" unformatted 2MB/1MB
- *		UNIX Media Type Name: 2HD512/2DD512/2D512/1D512.
- *
- *		In Japan Only - Model No. ND-355  3.5" unformatted 1.6MB/1MB
- *		UNIX Media Type Name: 2HC1024/2HC512/2HC256/2DD512/2D512/1D512.
- *
- *		Worldwide - Model No. ND-04DT-A  5.25" unformatted 500 KB
- *		UNIX Media Type Name: 2D512/1D512.
- *
- *		In Japan Only - Model No. ND-08DE  5.25" unformatted 1.6MB/1MB
- *		UNIX Media Type Name: 2HC1024/2HC512/2HC256/2DD512/2D512/1D512.
- *
- *		Use with other devices may require modification.
- *
- *	Notes:
- *		For further detail regarding drive units contact 
- *		Toshiba America,Inc. Disk Products Division,
- *		Irvine, CA (714) 583-3000.
- *
- *******************************************************************/
-
-/*
- *	fdcmd.c_rbmtr
- *
- *      	|--+--+--+--+--+--+--+--|
- *      	|  |  |  |  |  |  |  |  |
- *      	|--+--+--+--+--+--+--+--|
- *		       ^  ^        ^  ^
- *		       |  |        |  |--- unit0 motor on flag
- *		       |  |        |------ unit1 motor on flag
- *		       |  |--------------- unit0 recalibrate flag
- *		       |------------------ unit1 recalibrate flag
- */
-#define MTRMASK		0x003		/* mask motor_flag for get status */
-#define MTRRST		0x0fc		/* reset motor_flag data */
-#define RBSHIFT		0x004		/* shift count for recalibrate data */
-#define RBRST		0x0cf		/* reset recalibrate data */
-
-/*
- *	fdcmd.c_intr
- *
- *      		    	  |--+--+--+--+--+--+--+--|
- *      	  	    	  |  |  |  |  |  |  |  |  |
- *	        	    	  |--+--+--+--+--+--+--+--|
- *		 	            ^  ^  ^  ^  ^  ^  ^  ^
- *                      reserved  --+  |  |  |  |  |  |  +--- read/write flag
- *                      reserved  -----+  |  |  |  |  +------ seek flag
- * 	                reserved  --------+  |  |  +------ seek flag for retry
- * recalibrate/seek flag(for open) ----------+  +--------- recalibrate flag
- */
-#define RWFLAG		0x001
-#define SKFLAG		0x002
-#define SKEFLAG		0x004
-#define RBFLAG		0x008
-#define WUPFLAG		0x010
-#define CMDRST		0x000	
-
-/* 
- *	fddrtab.dr_type 
- *
- *        +---+---+---+---+---+---+---+---+
- *        |   |   |   |   |   |   |   |   |
- *        +---+---+---+---+---+---+---+---+
- *          ^   ^   ^   ^   ^
- *          |   |   |   |   |----------- rapid seek flag
- *          |---|   |   |                  0: normal seek
- *            |     |   |                  1: rapid seek
- *            |     |   |--------------- detect format
- *            |     |                      0: no detect
- *            |     |                      1: format type OK
- *            |     |------------------- 40 or 80 cylinder(for 2hc/2dd drive)
- *            |                            0: 80 cylinder
- *            |                            1: 40 cylinder
- *            |------------------------- transfer rate(for read/write/format)
- *                                         00: 500kbps  10: 250kbps
- *                                         01: 300kbps  11: reserved
- */
-#define RPSEEK		0x00		/* rapid seek */
-#define RAPID		0x08		/* rapid seek flag */
-#define OKTYPE		0x10		/* media change flag */
-#define DOUBLE		0x20		/* double/single step change */
-#define NMSEEK		0x80		/* normal seek */
-#define RATEMASK	0xc0		/* transfer parameter mask data */
-
-/*
- *	device number
- *
- *	 15             10  9  8  7                    0
- *	+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
- *	| 0  0  0  0  0  0  0  1|     | 0| 0| 0| 0|    	|
- *	+-----------+-----+-----+--+--+--+--+-----------+
- *	  ^                    ^  ^  ^              ^  ^ 
- *	  |____________________|  |__|              |__|
- *		    |		   |                 |
- *		    |		   |                 |- media type
- *	       major number	   |			0: 3.50"  720 KB
- *				   |- unit number	1: 3.50" 1.44 Meg
- *							2: 5.25"  360 KB
- *							3: 5.25" 1.20 Meg
- */
-#define UNIT(dev)	((dev & 0xc0)>>6)	/* get unit number */
-#define MEDIATYPE(dev)	(dev & 0x03)		/* get media type */
-/*****************************************************************************
- 
-		wait time / timeout count
-
- *****************************************************************************/
-#define STSCHKCNT	0x2800		/* For check status */
-#define ITOUT		HZ*5		/* interrupt timeout count */
-#define TOUT		HZ/4		/* media type check timeout count */
-#define MTRSTOP		HZ*2		/* motor off time */
-#define SEEKWAIT	HZ/100*3	/* head_lock time */
-
-/******************************************************************************
- 
-		define for FDC
-
- ******************************************************************************/
-/* FDC register */
-#define CTRLREG(ADDR)	(ADDR)		/* controle register */
-#define STSREG(ADDR)	((ADDR)+2)	/* status register */
-#define DATAREG(ADDR)	((ADDR)+3)	/* data register */
-#define VFOREG(ADDR)	((ADDR)+5)	/* vfo register */
-
-/* CTRLREG flags */
-#define FDC_RST		0x04
-#define MTR_ON		0x04
-#define DMAREQ		0x08
-#define RDY		0x40
-#define BSY		0x80
-
-/* status for command_out */
-#define FD_OSTS		0x00		/* For output check */
-#define FD_ISTS		0x40		/* For input check */
-#define DTOCPU		0x40
-#define DATAOK		0x80
-
-/* Command for FDC */
-#define SPCCMD		0x03		/* Specify command */
-#define RBCMD		0x07		/* Recalibrate command */
-#define SISCMD		0x08		/* Sense interrupt status command */
-#define SEEKCMD		0x0f		/* seek command */
-#define RDM		0xe6		/* FDC READ command */
-#define RDMV		0x42e6		/* VERIFY READ command */
-#define WTM		0xc5		/* FDC WRITE command */
-#define FMTM		0x4d		/* FDC FORMAT command */
-#define FMTDATA		0x5e		/* format data */
-
-/* check value */
-#define OPENBIT		0x80		/* VFO check define */
-#define BYTEMASK	0xff
-
-/* FDC error code define */
-#define ERROR		0xff
-#define EBBHARD		128
-#define EBBSOFT		129
-#define ST0AT		0x40
-#define ST0IC		0x80
-#define ST0OK		0xc0
-#define ADDRERR		0x01
-#define WTPRT		0x02
-#define NOREC		0x03
-#define OVERRUN		0x04
-#define CRCERR		0x05
-#define FDCERR		0x06
-#define TIMEOUT		0x08
-#define DOORERR		0x09
-
-/******************************************************************************
- 
-		define for DMA
-
- *****************************************************************************/
-/* DMA register */
-#define DMACMD1		0x08		/* DMA #1 command register 	*/
-#define DMAMSK1		0x0f		/* DMA #1 all mask register	*/
-#define DMABPFF		0x0c
-#define DMAMODE		0x0b
-#define DMAADDR		0x04
-#define DMAPAGE		0x81
-#define DMACNT		0x05
-#define DMAMSK		0x0a
-
-/* dma set data */
-#define DMARD		0x46		/* DMA read mode		*/
-#define DMAWT		0x4a		/* DMA	write mode		*/
-#define DMAVRF		0x42		/* DMA verify mode		*/
-
-#define DMADATA0	0x00		/* DMA #2 all mask data 	*/
-#define DMADATA1	0x0b		/* DMA #1 all mask data 	*/
-#define CHANNEL2	0x02
-
-#define SRTHUT          0xdf
-#define HLTND           0x02
-#define DTL             0xff
-
-/******************************************************************************
- 
-		etc. define
-
- *****************************************************************************/
-#define SPL		spl5	/* Same as in i386at/autoconf.c */
-#define MAXUNIT		4	/* Max unit number */
-#define BLKSIZE		512	/* block size	   */
-
-/* fdcmd.c_stsflag	*/
-#define MTRFLAG	0x01
-#define MTROFF	0x02
-#define INTROUT	0x04
-
-/* fdcmd.c_devflag (media check flag . etc.) */
-#define FDMCHK		0x01
-#define FDWAIT		0x02
-#define STRCHK		0x04
-#define STRWAIT		0x08
-
-/* fdcmd.c_dcount */
-#define FDCCNT	9	/* Command table for read/write/format (FDC) */
-#define RWCNT	9	/* Read/Write command count */
-#define FMTCNT	6	/* format command count */
-
-struct	fdcmd {
-	int	c_rbmtr;		/* moter & rcalibrate flag */
-	int	c_intr;			/* intr flag */
-	int	c_stsflag;		/* moter flag */
-	int	c_mtrid;		/* motor off queue id */
-	int	c_timeid;		/* interrupt timeout id */
-	int	c_devflag;		/* device status   */
-	int	c_dcount;		/* Read/Write/Format data count */
-	int	c_rwdata[FDCCNT];	/* Read/Write/Format cmd (FDC) */
-	int	c_saddr;		/* cmd seek address */
-};
-
-/* fdmbuf.b_rberr/fdmbuf.b_seekerr/fdmbuf.b_rwerr */
-#define MEDIARD		0x01
-#define MEDIASEEK	0x01
-#define SRETRY		0x03
-#define MRETRY		0x30
-#define LRETRY		0x300
-#define SRMASK		0x0f
-#define MRMASK		0xf0
-#define RMRMASK		0xff0
-#define LRMASK		0xf00
-#define MINC		0x10
-#define LINC		0x100
-
-struct	ctrl_info {
-	struct	unit_info *b_unitf;	/* first buffer for this dev 	   */
-	struct	unit_info *b_uip;	/* like b_unit			   */
-	struct	unit_info *b_wup;	/* unit to wake up when WUPFLAG    */
-	short	b_rberr;		/* rb error count (for recovery)   */
-	short	b_seekerr;		/* seek error count (for recovery) */
-	short	b_rwerr;		/* r/w error count (for recovery)  */
-	short	b_status;		/* error status			   */
-	struct	buf	*b_buf;		/* set bp address 		   */
-	caddr_t b_xferaddr;		/* trasfer address		   */
-	unsigned int b_xfercount;	/* total transfer count		   */
-	unsigned int b_xferdma;		/* dma transfer count		   */
-	int	usebuf;			/* use private dma page		   */
-	caddr_t	b_vbuf;			/* virtual address for dma page	   */
-	vm_offset_t b_pbuf;		/* physical dma page (model_dep.c) */
-	daddr_t	b_sector;		/* read/write sector 		   */
-	struct	fdcmd	b_cmd;		/* set command table address       */
-};
-
-#define FMTID	4
-struct fmttbl {
-	unsigned char cyl;
-	unsigned char head;
-	unsigned char sector;
-	unsigned char s_type;
-};
-
-struct	fddrtab {
-	u_short	dr_ncyl;	/* cylinder count		 */
-	u_short	dr_spc;		/* actual sectors/cylinder	 */
-	daddr_t p_nsec;		/* disk length (sector count)	 */
-	char	dr_nsec;	/* sector per track		 */
-	char	dr_type;	/* media type			 */
-	char	dr_rwgpl;	/* Read / Write Gap length	 */
-	char	dr_fgpl;	/* Format Gap length		 */
-};
-
-struct	unit_info {
-	struct unit_info *b_unitf;	/* next slave 		      */
-	struct buf 	 *av_forw;	/* head of I/O queue (b_forw) */
-	int		 b_seekaddr;	/* cylinder address           */
-	u_short		 addr;
-	struct fddrtab	 d_drtab;	/* floppy disk parameter      */
-	struct bus_device *dev;
-	struct fdcmd	 *b_cmd;	/* set command table address  */
-	char		 wakeme;	/* set if someone wants to be woken */
-};
-
-#define HZ		100		/* 100 ticks/second of the clock */
-#define NBPSCTR		512		/* Bytes per LOGICAL disk sector */
-					/* These should be added to 
-					   "sys/param.h". */
-#define PAGESIZ		4096
-#ifdef	MACH_KERNEL
-#define	PZERO		25
-#define	PRIBIO		20
-
-#define	B_VERIFY	IO_SPARE_START
-#define	B_FORMAT	(IO_SPARE_START << 1)
-
-#define	b_pfcent	io_mode
-
-#endif	MACH_KERNEL
diff --git a/i386/i386at/nfd.c b/i386/i386at/nfd.c
deleted file mode 100644
index 950f896..0000000
--- a/i386/i386at/nfd.c
+++ /dev/null
@@ -1,1484 +0,0 @@
-/* 
- * Copyright (c) 1994 Shantanu Goel
- * All Rights Reserved.
- * 
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * THE AUTHOR ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  THE AUTHOR DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- */
-
-#include <fd.h>
-#if NFD > 0
-/*
- * Floppy disk driver.
- *
- * Supports:
- * 1 controller and 2 drives.
- * Media change and automatic media detection.
- * Arbitrarily sized read/write requests.
- * Misaligned requests
- * DMA above 16 Meg
- *
- * TODO:
- * 1) Real probe routines for controller and drives.
- * 2) Support for multiple controllers.  The driver does
- * not assume a single controller since all functions
- * take the controller and/or device structure as an
- * argument, however the probe routines limit the
- * number of controllers and drives to 1 and 2 respectively.
- * 3) V_VERIFY ioctl.
- * 4) User defined diskette parameters.
- * 5) Detect Intel 82077 or compatible and use its FIFO mode.
- *
- * Shantanu Goel (goel@cs.columbia.edu)
- */
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include "vm_param.h"
-#include <kern/time_out.h>
-#include <vm/pmap.h>
-#include <device/param.h>
-#include <device/buf.h>
-#include <device/errno.h>
-#include <chips/busses.h>
-#include <i386/machspl.h>
-#include <i386/pio.h>
-#include <i386at/cram.h>
-#include <i386at/disk.h>
-#include <i386at/nfdreg.h>
-
-/*
- * Number of drives supported by an FDC.
- * The controller is actually capable of
- * supporting 4 drives, however, most (all?)
- * board implementations only support 2.
- */
-#define NDRIVES_PER_FDC	2
-#define NFDC		((NFD + NDRIVES_PER_FDC - 1) / NDRIVES_PER_FDC)
-
-#define fdunit(dev)	(((int)(dev) >> 6) & 3)
-#define fdmedia(dev)	((int)(dev) & 3)
-
-#define b_cylin		b_resid
-#define B_FORMAT	B_MD1
-
-#define SECSIZE		512
-
-#define DMABSIZE	(18*1024)	/* size of DMA bounce buffer */
-
-#define OP_TIMEOUT	5		/* time to wait (secs) for an
-					   operation before giving up */
-#define MOTOR_TIMEOUT	5		/* time to wait (secs) before turning
-					   off an idle drive motor */
-#define MAX_RETRIES	48		/* number of times to try
-					   an I/O operation */
-
-#define SRTHUT		0xdf		/* step rate/head unload time */
-#define HLTND		0x02		/* head load time/dma mode */
-
-/*
- * DMA controller.
- *
- * XXX: There should be a generic <i386/dma.h> file.
- */
-
-/*
- * Ports
- */
-#define DMA2_PAGE	0x81	/* channel 2, page register */
-#define DMA2_ADDR	0x04	/* channel 2, addr register */
-#define DMA2_COUNT	0x05	/* channel 2, count register */
-#define DMA_STATUS	0x08	/* status register */
-#define DMA_COMMAND	0x08	/* command register */
-#define DMA_WREQ	0x09	/* request register */
-#define DMA_SINGLEMSK	0x0a	/* single mask register */
-#define DMA_MODE	0x0b	/* mode register */
-#define DMA_FLIPFLOP	0x0c	/* pointer flip/flop */
-#define DMA_TEMP	0x0d	/* temporary register */
-#define DMA_MASTERCLR	0x0d	/* master clear */
-#define DMA_CLRMASK	0x0e	/* clear mask register */
-#define DMA_ALLMASK	0x0f	/* all mask register */
-
-/*
- * Commands
- */
-#define DMA_WRITE	0x46	/* write on channel 2 */
-#define DMA_READ	0x4a	/* read on channel 2 */
-
-/*
- * Autoconfiguration stuff.
- */
-struct	bus_ctlr *fdminfo[NFDC];
-struct	bus_device *fddinfo[NFD];
-int	fdstd[] = { 0 };
-int	fdprobe(), fdslave(), fdintr();
-void	fdattach();
-struct	bus_driver fddriver = {
-	fdprobe, fdslave, fdattach, 0, fdstd, "fd", fddinfo, "fdc", fdminfo
-};
-
-/*
- * Per-controller state.
- */
-struct fdcsoftc {
-	int	sc_flags;
-#define FDF_WANT	0x01	/* someone needs direct controller access */
-#define FDF_RESET	0x02	/* controller needs reset */
-#define FDF_LIMIT	0x04	/* limit transfer to a single sector */
-#define FDF_BOUNCE	0x08	/* using bounce buffer */
-	int	sc_state;	/* transfer fsm */
-	caddr_t	sc_addr;	/* buffer address */
-	int	sc_resid;	/* amount left to transfer */
-	int	sc_amt;		/* amount currently being transferred */
-	int	sc_op;		/* operation being performed */
-	int	sc_mode;	/* DMA mode */
-	int	sc_sn;		/* sector number */
-	int	sc_tn;		/* track number */
-	int	sc_cn;		/* cylinder number */
-	int	sc_recalerr;	/* # recalibration errors */
-	int	sc_seekerr;	/* # seek errors */
-	int	sc_ioerr;	/* # i/o errors */
-	int	sc_dor;		/* copy of digital output register */
-	int	sc_rate;	/* copy of transfer rate register */
-	int	sc_wticks;	/* watchdog */
-	u_int	sc_buf;		/* buffer for transfers > 16 Meg */
-	u_char	sc_cmd[9];	/* command buffer */
-	u_char	sc_results[7];	/* operation results */
-} fdcsoftc[NFDC];
-
-#define sc_st0	sc_results[0]
-#define sc_st3	sc_results[0]
-#define sc_st1	sc_results[1]
-#define sc_pcn	sc_results[1]
-#define sc_st2	sc_results[2]
-#define sc_c	sc_results[3]
-#define sc_h	sc_results[4]
-#define sc_r	sc_results[5]
-#define sc_n	sc_results[6]
-
-/*
- * Transfer states.
- */
-#define IDLE		0	/* controller is idle */
-#define RESET		1	/* reset controller */
-#define RESETDONE	2	/* reset completion interrupt */
-#define RECAL		3	/* recalibrate drive */
-#define RECALDONE	4	/* recalibration complete interrupt */
-#define SEEK		5	/* perform seek on drive */
-#define SEEKDONE	6	/* seek completion interrupt */
-#define TRANSFER	7	/* perform transfer on drive */
-#define TRANSFERDONE	8	/* transfer completion interrupt */
-
-/*
- * Per-drive state.
- */
-struct fdsoftc {
-	int	sc_flags;
-#define FDF_RECAL	0x02	/* drive needs recalibration */
-#define FDF_SEEK	0x04	/* force seek during auto-detection */
-#define FDF_AUTO	0x08	/* performing auto-density */
-#define FDF_AUTOFORCE	0x10	/* force auto-density */
-#define FDF_INIT	0x20	/* drive is being initialized */
-	int	sc_type;	/* drive type */
-	struct	fddk *sc_dk;	/* diskette type */
-	int	sc_cyl;		/* current head position */
-	int	sc_mticks;	/* motor timeout */
-} fdsoftc[NFD];
-
-struct	buf fdtab[NFDC];	/* controller queues */
-struct	buf fdutab[NFD];	/* drive queues */
-
-/*
- * Floppy drive type names.
- */
-char	*fdnames[] = { "360K", "1.2 Meg", "720K", "1.44 Meg" };
-#define NTYPES	(sizeof(fdnames) / sizeof(fdnames[0]))
-
-/*
- * Floppy diskette parameters.
- */
-struct fddk {
-	int	dk_nspu;	/* sectors/unit */
-	int	dk_nspc;	/* sectors/cylinder */
-	int	dk_ncyl;	/* cylinders/unit */
-	int	dk_nspt;	/* sectors/track */
-	int	dk_step;	/* !=0 means double track steps */
-	int	dk_gap;		/* read/write gap length */
-	int	dk_fgap;	/* format gap length */
-	int	dk_rate;	/* transfer rate */
-	int	dk_drives;	/* bit mask of drives that accept diskette */
-	char	*dk_name;	/* type name */
-} fddk[] = {
-	/*
-	 * NOTE: largest density for each drive type must be first so
-	 * fdauto() tries it before any lower ones.
-	 */
-	{ 2880, 36, 80, 18, 0, 0x1b, 0x6c, 0x00, 0x08, "1.44 Meg" },
-	{ 2400, 30, 80, 15, 0, 0x1b, 0x54, 0x00, 0x02,  "1.2 Meg" },
-	{ 1440, 18, 80,  9, 0, 0x2a, 0x50, 0x02, 0x0c,     "720K" },
-	{  720, 18, 40,  9, 1, 0x23, 0x50, 0x01, 0x02,     "360K" },
-	{  720, 18, 40,  9, 0, 0x2a, 0x50, 0x02, 0x01,  "360K PC" }
-};
-#define NDKTYPES	(sizeof(fddk) / sizeof(fddk[0]))
-
-/*
- * For compatibility with old driver.
- * This array is indexed by the old floppy type codes
- * and points to the corresponding entry for that
- * type in fddk[] above.
- */
-struct	fddk *fdcompat[NDKTYPES];
-
-int	fdwstart = 0;
-int	fdstrategy(), fdformat();
-char	*fderrmsg();
-void	fdwatch(), fdminphys(), fdspinup(), wakeup();
-
-#define FDDEBUG
-#ifdef FDDEBUG
-int fddebug = 0;
-#define DEBUGF(n, stmt)	{ if (fddebug >= (n)) stmt; }
-#else
-#define DEBUGF(n, stmt)
-#endif
-
-/*
- * Probe for a controller.
- */
-int
-fdprobe(xxx, um)
-	int xxx;
-	struct bus_ctlr *um;
-{
-	struct fdcsoftc *fdc;
-
-	if (um->unit >= NFDC) {
-		printf("fdc%d: not configured\n", um->unit);
-		return (0);
-	}
-	if (um->unit > 0)	/* XXX: only 1 controller */
-		return (0);
-
-	/*
-	 * XXX: need real probe
-	 */
-	take_ctlr_irq(um);
-	printf("%s%d: port 0x%x, spl %d, pic %d.\n",
-	       um->name, um->unit, um->address, um->sysdep, um->sysdep1);
-
-	/*
-	 * Set up compatibility array.
-	 */
-	fdcompat[0] = &fddk[2];
-	fdcompat[1] = &fddk[0];
-	fdcompat[2] = &fddk[3];
-	fdcompat[3] = &fddk[1];
-
-	fdc = &fdcsoftc[um->unit];
-	fdc->sc_rate = -1;
-	if (!fdc->sc_buf) {
-		fdc->sc_buf = alloc_dma_mem(DMABSIZE, 64*1024);
-		if (fdc->sc_buf == 0)
-			panic("fd: alloc_dma_mem() failed");
-	}
-	fdc->sc_dor = DOR_RSTCLR | DOR_IENABLE;
-	outb(FD_DOR(um->address), fdc->sc_dor);
-	return (1);
-}
-
-/*
- * Probe for a drive.
- */
-int
-fdslave(ui)
-	struct bus_device *ui;
-{
-	struct fdsoftc *sc;
-
-	if (ui->unit >= NFD) {
-		printf("fd%d: not configured\n", ui->unit);
-		return (0);
-	}
-	if (ui->unit > 1)	/* XXX: only 2 drives */
-		return (0);
-
-	/*
-	 * Find out from CMOS if drive exists.
-	 */
-	sc = &fdsoftc[ui->unit];
-	outb(CMOS_ADDR, 0x10);
-	sc->sc_type = inb(CMOS_DATA);
-	if (ui->unit == 0)
-		sc->sc_type >>= 4;
-	sc->sc_type &= 0x0f;
-	return (sc->sc_type);
-}
-
-/*
- * Attach a drive to the system.
- */
-void
-fdattach(ui)
-	struct bus_device *ui;
-{
-	struct fdsoftc *sc;
-
-	sc = &fdsoftc[ui->unit];
-	if (--sc->sc_type >= NTYPES) {
-		printf(": unknown drive type %d", sc->sc_type);
-		ui->alive = 0;
-		return;
-	}
-	printf(": %s", fdnames[sc->sc_type]);
-	sc->sc_flags = FDF_RECAL | FDF_SEEK | FDF_AUTOFORCE;
-}
-
-int
-fdopen(dev, mode)
-	dev_t dev;
-	int mode;
-{
-	int unit = fdunit(dev), error;
-	struct bus_device *ui;
-	struct fdsoftc *sc;
-
-	if (unit >= NFD || (ui = fddinfo[unit]) == 0 || ui->alive == 0)
-		return (ENXIO);
-
-	/*
-	 * Start watchdog.
-	 */
-	if (!fdwstart) {
-		fdwstart++;
-		timeout(fdwatch, 0, hz);
-	}
-	/*
-	 * Do media detection if drive is being opened for the
-	 * first time or diskette has been changed since the last open.
-	 */
-	sc = &fdsoftc[unit];
-	if ((sc->sc_flags & FDF_AUTOFORCE) || fddskchg(ui)) {
-		if (error = fdauto(dev))
-			return (error);
-		sc->sc_flags &= ~FDF_AUTOFORCE;
-	}
-	return (0);
-}
-
-int
-fdclose(dev)
-	dev_t dev;
-{
-	int s, unit = fdunit(dev);
-	struct fdsoftc *sc = &fdsoftc[unit];
-
-	/*
-	 * Wait for pending operations to complete.
-	 */
-	s = splbio();
-	while (fdutab[unit].b_active) {
-		sc->sc_flags |= FDF_WANT;
-		assert_wait((event_t)sc, FALSE);
-		thread_block((void (*)())0);
-	}
-	splx(s);
-	return (0);
-}
-
-int
-fdread(dev, ior)
-	dev_t dev;
-	io_req_t ior;
-{
-	return (block_io(fdstrategy, fdminphys, ior));
-}
-
-int
-fdwrite(dev, ior)
-	dev_t dev;
-	io_req_t ior;
-{
-	return (block_io(fdstrategy, fdminphys, ior));
-}
-
-int
-fdgetstat(dev, flavor, status, status_count)
-	dev_t dev;
-	dev_flavor_t flavor;
-	dev_status_t status;
-	mach_msg_type_number_t *status_count;
-{
-	switch (flavor) {
-
-	case DEV_GET_SIZE:
-	{
-		int *info;
-		io_return_t error;
-		struct disk_parms dp;
-
-		if (error = fdgetparms(dev, &dp))
-			return (error);
-		info = (int *)status;
-		info[DEV_GET_SIZE_DEVICE_SIZE] = dp.dp_pnumsec * SECSIZE;
-		info[DEV_GET_SIZE_RECORD_SIZE] = SECSIZE;
-		*status_count = DEV_GET_SIZE_COUNT;
-		return (D_SUCCESS);
-	}
-	case V_GETPARMS:
-		if (*status_count < (sizeof(struct disk_parms) / sizeof(int)))
-			return (D_INVALID_OPERATION);
-		*status_count = sizeof(struct disk_parms) / sizeof(int);
-		return (fdgetparms(dev, (struct disk_parms *)status));
-
-	default:
-		return (D_INVALID_OPERATION);
-	}
-}
-
-int
-fdsetstat(dev, flavor, status, status_count)
-	dev_t dev;
-	dev_flavor_t flavor;
-	dev_status_t status;
-	mach_msg_type_number_t status_count;
-{
-	switch (flavor) {
-
-	case V_SETPARMS:
-		return (fdsetparms(dev, *(int *)status));
-
-	case V_FORMAT:
-		return (fdformat(dev, (union io_arg *)status));
-
-	case V_VERIFY:
-		/*
-		 * XXX: needs to be implemented
-		 */
-		return (D_SUCCESS);
-
-	default:
-		return (D_INVALID_OPERATION);
-	}
-}
-
-int
-fddevinfo(dev, flavor, info)
-	dev_t dev;
-	int flavor;
-	char *info;
-{
-	switch (flavor) {
-
-	case D_INFO_BLOCK_SIZE:
-		*(int *)info = SECSIZE;
-		return (D_SUCCESS);
-
-	default:
-		return (D_INVALID_OPERATION);
-	}
-}
-
-/*
- * Allow arbitrary transfers.  Standard minphys restricts
- * transfers to a maximum of 256K preventing us from reading
- * an entire diskette in a single system call.
- */
-void
-fdminphys(ior)
-	io_req_t ior;
-{
-}
-
-/*
- * Return current media parameters.
- */
-int
-fdgetparms(dev, dp)
-	dev_t dev;
-	struct disk_parms *dp;
-{
-	struct fddk *dk = fdsoftc[fdunit(dev)].sc_dk;
-
-	dp->dp_type = DPT_FLOPPY;
-	dp->dp_heads = 2;
-	dp->dp_sectors = dk->dk_nspt;
-	dp->dp_pstartsec = 0;
-	dp->dp_cyls = dk->dk_ncyl;
-	dp->dp_pnumsec = dk->dk_nspu;
-	return (0);
-}
-
-/*
- * Set media parameters.
- */
-int
-fdsetparms(dev, type)
-	dev_t dev;
-	int type;
-{
-	struct fdsoftc *sc;
-	struct fddk *dk;
-
-	if (type < 0 || type >= NDKTYPES)
-		return (EINVAL);
-	dk = fdcompat[type];
-	sc = &fdsoftc[fdunit(dev)];
-	if ((dk->dk_drives & (1 << sc->sc_type)) == 0)
-		return (EINVAL);
-	sc->sc_dk = dk;
-	return (D_SUCCESS);
-}
-
-/*
- * Format a floppy.
- */
-int
-fdformat(dev, arg)
-	dev_t dev;
-	union io_arg *arg;
-{
-	int i, j, sect, error = 0;
-	unsigned track, num_trks;
-	struct buf *bp;
-	struct fddk *dk;
-	struct format_info *fmt;
-
-	dk = fdsoftc[fdunit(dev)].sc_dk;
-	num_trks = arg->ia_fmt.num_trks;
-	track = arg->ia_fmt.start_trk;
-	if (num_trks == 0 || track + num_trks > (dk->dk_ncyl << 1)
-	    || arg->ia_fmt.intlv >= dk->dk_nspt)
-		return (EINVAL);
-
-	bp = (struct buf *)geteblk(SECSIZE);
-	bp->b_dev = dev;
-	bp->b_bcount = dk->dk_nspt * sizeof(struct format_info);
-	bp->b_blkno = track * dk->dk_nspt;
-
-	while (num_trks-- > 0) {
-		/*
-		 * Set up format information.
-		 */
-		fmt = (struct format_info *)bp->b_un.b_addr;
-		for (i = 0; i < dk->dk_nspt; i++)
-			fmt[i].sector = 0;
-		for (i = 0, j = 0, sect = 1; i < dk->dk_nspt; i++) {
-			fmt[j].cyl = track >> 1;
-			fmt[j].head = track & 1;
-			fmt[j].sector = sect++;
-			fmt[j].secsize = 2;
-			if ((j += arg->ia_fmt.intlv) < dk->dk_nspt)
-				continue;
-			for (j -= dk->dk_nspt; j < dk->dk_nspt; j++)
-				if (fmt[j].sector == 0)
-					break;
-		}
-		bp->b_flags = B_FORMAT;
-		fdstrategy(bp);
-		biowait(bp);
-		if (bp->b_flags & B_ERROR) {
-			error = bp->b_error;
-			break;
-		}
-		bp->b_blkno += dk->dk_nspt;
-		track++;
-	}
-	bp->b_flags &= ~B_FORMAT;
-	brelse(bp);
-	return (error);
-}
-
-/*
- * Strategy routine.
- * Enqueue a request on drive queue.
- */
-int
-fdstrategy(bp)
-	struct buf *bp;
-{
-	int unit = fdunit(bp->b_dev), s;
-	int bn, sz, maxsz;
-	struct buf *dp;
-	struct bus_device *ui = fddinfo[unit];
-	struct fddk *dk = fdsoftc[unit].sc_dk;
-
-	bn = bp->b_blkno;
-	sz = (bp->b_bcount + SECSIZE - 1) / SECSIZE;
-	maxsz = dk->dk_nspu;
-	if (bn < 0 || bn + sz > maxsz) {
-		if (bn == maxsz) {
-			bp->b_resid = bp->b_bcount;
-			goto done;
-		}
-		sz = maxsz - bn;
-		if (sz <= 0) {
-			bp->b_error = EINVAL;
-			bp->b_flags |= B_ERROR;
-			goto done;
-		}
-		bp->b_bcount = sz * SECSIZE;
-	}
-	bp->b_cylin = bn / dk->dk_nspc;
-	dp = &fdutab[unit];
-	s = splbio();
-	disksort(dp, bp);
-	if (!dp->b_active) {
-		fdustart(ui);
-		if (!fdtab[ui->mi->unit].b_active)
-			fdstart(ui->mi);
-	}
-	splx(s);
-	return;
- done:
-	biodone(bp);
-	return;
-}
-
-/*
- * Unit start routine.
- * Move request from drive to controller queue.
- */
-int
-fdustart(ui)
-	struct bus_device *ui;
-{
-	struct buf *bp;
-	struct buf *dp;
-
-	bp = &fdutab[ui->unit];
-	if (bp->b_actf == 0)
-		return;
-	dp = &fdtab[ui->mi->unit];
-	if (dp->b_actf == 0)
-		dp->b_actf = bp;
-	else
-		dp->b_actl->b_forw = bp;
-	bp->b_forw = 0;
-	dp->b_actl = bp;
-	bp->b_active++;
-}
-
-/*
- * Start output on controller.
- */
-int
-fdstart(um)
-	struct bus_ctlr *um;
-{
-	struct buf *bp;
-	struct buf *dp;
-	struct fdsoftc *sc;
-	struct fdcsoftc *fdc;
-	struct bus_device *ui;
-	struct fddk *dk;
-
-	/*
-	 * Pull a request from the controller queue.
-	 */
-	dp = &fdtab[um->unit];
-	if ((bp = dp->b_actf) == 0)
-		return;
-	bp = bp->b_actf;
-
-	fdc = &fdcsoftc[um->unit];
-	ui = fddinfo[fdunit(bp->b_dev)];
-	sc = &fdsoftc[ui->unit];
-	dk = sc->sc_dk;
-
-	/*
-	 * Mark controller busy.
-	 */
-	dp->b_active++;
-
-	/*
-	 * Figure out where this request is going.
-	 */
-	fdc->sc_cn = bp->b_cylin;
-	fdc->sc_sn = bp->b_blkno % dk->dk_nspc;
-	fdc->sc_tn = fdc->sc_sn / dk->dk_nspt;
-	fdc->sc_sn %= dk->dk_nspt;
-
-	/*
-	 * Set up for multi-sector transfer.
-	 */
-	fdc->sc_op = ((bp->b_flags & B_FORMAT) ? CMD_FORMAT
-		      : ((bp->b_flags & B_READ) ? CMD_READ : CMD_WRITE));
-	fdc->sc_mode = (bp->b_flags & B_READ) ? DMA_WRITE : DMA_READ;
-	fdc->sc_addr = bp->b_un.b_addr;
-	fdc->sc_resid = bp->b_bcount;
-	fdc->sc_wticks = 0;
-	fdc->sc_recalerr = 0;
-	fdc->sc_seekerr = 0;
-	fdc->sc_ioerr = 0;
-
-	/*
-	 * Set initial transfer state.
-	 */
-	if (fdc->sc_flags & FDF_RESET)
-		fdc->sc_state = RESET;
-	else if (sc->sc_flags & FDF_RECAL)
-		fdc->sc_state = RECAL;
-	else if (sc->sc_cyl != fdc->sc_cn)
-		fdc->sc_state = SEEK;
-	else
-		fdc->sc_state = TRANSFER;
-
-	/*
-	 * Set transfer rate.
-	 */
-	if (fdc->sc_rate != dk->dk_rate) {
-		fdc->sc_rate = dk->dk_rate;
-		outb(FD_RATE(um->address), fdc->sc_rate);
-	}
-	/*
-	 * Turn on drive motor.
-	 * Don't start I/O if drive is spinning up.
-	 */
-	if (fdmotoron(ui)) {
-		timeout(fdspinup, (void *)um, hz / 2);
-		return;
-	}
-	/*
-	 * Call transfer state routine to do the actual I/O.
-	 */
-	fdstate(um);
-}
-
-/*
- * Interrupt routine.
- */
-int
-fdintr(ctlr)
-	int ctlr;
-{
-	int timedout;
-	u_char results[7];
-	struct buf *bp;
-	struct bus_device *ui;
-	struct fdsoftc *sc;
-	struct buf *dp = &fdtab[ctlr];
-	struct fdcsoftc *fdc = &fdcsoftc[ctlr];
-	struct bus_ctlr *um = fdminfo[ctlr];
-
-	if (!dp->b_active) {
-		printf("fdc%d: stray interrupt\n", ctlr);
-		return;
-	}
-	timedout = fdc->sc_wticks >= OP_TIMEOUT;
-	fdc->sc_wticks = 0;
-	bp = dp->b_actf->b_actf;
-	ui = fddinfo[fdunit(bp->b_dev)];
-	sc = &fdsoftc[ui->unit];
-
-	/*
-	 * Operation timed out, terminate request.
-	 */
-	if (timedout) {
-		fderror("timed out", ui);
-		fdmotoroff(ui);
-		sc->sc_flags |= FDF_RECAL;
-		bp->b_flags |= B_ERROR;
-		bp->b_error = ENXIO;
-		fddone(ui, bp);
-		return;
-	}
-	/*
-	 * Read results from FDC.
-	 * For transfer completion they can be read immediately.
-	 * For anything else, we must issue a Sense Interrupt
-	 * Status Command.  We keep issuing this command till
-	 * FDC returns invalid command status.  The Controller Busy
-	 * bit in the status register indicates completion of a
-	 * read/write/format operation.
-	 */
-	if (inb(FD_STATUS(um->address)) & ST_CB) {
-		if (!fdresults(um, fdc->sc_results))
-			return;
-	} else {
-		while (1) {
-			fdc->sc_cmd[0] = CMD_SENSEI;
-			if (!fdcmd(um, 1)) {
-				DEBUGF(2, printf(2, "fd%d: SENSEI failed\n"));
-				return;
-			}
-			if (!fdresults(um, results))
-				return;
-			if ((results[0] & ST0_IC) == 0x80)
-				break;
-			if ((results[0] & ST0_US) == ui->slave) {
-				fdc->sc_results[0] = results[0];
-				fdc->sc_results[1] = results[1];
-			}
-		}
-	}
-	/*
-	 * Let transfer state routine handle the rest.
-	 */
-	fdstate(um);
-}
-
-/*
- * Transfer finite state machine driver.
- */
-int
-fdstate(um)
-	struct bus_ctlr *um;
-{
-	int unit, max, pa, s;
-	struct buf *bp;
-	struct fdsoftc *sc;
-	struct bus_device *ui;
-	struct fddk *dk;
-	struct fdcsoftc *fdc = &fdcsoftc[um->unit];
-
-	bp = fdtab[um->unit].b_actf->b_actf;
-	ui = fddinfo[fdunit(bp->b_dev)];
-	sc = &fdsoftc[ui->unit];
-	dk = sc->sc_dk;
-
-	while (1) switch (fdc->sc_state) {
-
-	case RESET:
-		/*
-		 * Reset the controller.
-		 */
-		fdreset(um);
-		return;
-
-	case RESETDONE:
-		/*
-		 * Reset complete.
-		 * Mark all drives as needing recalibration
-		 * and issue specify command.
-		 */
-		for (unit = 0; unit < NFD; unit++)
-			if (fddinfo[unit] && fddinfo[unit]->alive
-			    && fddinfo[unit]->mi == um)
-				fdsoftc[unit].sc_flags |= FDF_RECAL;
-		fdc->sc_cmd[0] = CMD_SPECIFY;
-		fdc->sc_cmd[1] = SRTHUT;
-		fdc->sc_cmd[2] = HLTND;
-		if (!fdcmd(um, 3))
-			return;
-		fdc->sc_flags &= ~FDF_RESET;
-		fdc->sc_state = RECAL;
-		break;
-
-	case RECAL:
-		/*
-		 * Recalibrate drive.
-		 */
-		fdc->sc_state = RECALDONE;
-		fdc->sc_cmd[0] = CMD_RECAL;
-		fdc->sc_cmd[1] = ui->slave;
-		fdcmd(um, 2);
-		return;
-
-	case RECALDONE:
-		/*
-		 * Recalibration complete.
-		 */
-		if ((fdc->sc_st0 & ST0_IC) || (fdc->sc_st0 & ST0_EC)) {
-			if (++fdc->sc_recalerr == 2) {
-				fderror("recalibrate failed", ui);
-				goto bad;
-			}
-			fdc->sc_state = RESET;
-			break;
-		}
-		sc->sc_flags &= ~FDF_RECAL;
-		fdc->sc_recalerr = 0;
-		sc->sc_cyl = -1;
-		fdc->sc_state = SEEK;
-		break;
-
-	case SEEK:
-		/*
-		 * Perform seek operation.
-		 */
-		fdc->sc_state = SEEKDONE;
-		fdc->sc_cmd[0] = CMD_SEEK;
-		fdc->sc_cmd[1] = (fdc->sc_tn << 2) | ui->slave;
-		fdc->sc_cmd[2] = fdc->sc_cn;
-		if (dk->dk_step)
-			fdc->sc_cmd[2] <<= 1;
-		fdcmd(um, 3);
-		return;
-
-	case SEEKDONE:
-		/*
-		 * Seek complete.
-		 */
-		if (dk->dk_step)
-			fdc->sc_pcn >>= 1;
-		if ((fdc->sc_st0 & ST0_IC) || (fdc->sc_st0 & ST0_SE) == 0
-		    || fdc->sc_pcn != fdc->sc_cn) {
-			if (++fdc->sc_seekerr == 2) {
-				fderror("seek failed", ui);
-				goto bad;
-			}
-			fdc->sc_state = RESET;
-			break;
-		}
-		fdc->sc_seekerr = 0;
-		sc->sc_cyl = fdc->sc_pcn;
-		fdc->sc_state = TRANSFER;
-		break;
-
-	case TRANSFER:
-		/*
-		 * Perform I/O transfer.
-		 */
-		fdc->sc_flags &= ~FDF_BOUNCE;
-		pa = pmap_extract(kernel_pmap, fdc->sc_addr);
-		if (fdc->sc_op == CMD_FORMAT) {
-			max = sizeof(struct format_info) * dk->dk_nspt;
-		} else if (fdc->sc_flags & FDF_LIMIT) {
-			fdc->sc_flags &= ~FDF_LIMIT;
-			max = SECSIZE;
-		} else {
-			max = (dk->dk_nspc - dk->dk_nspt * fdc->sc_tn
-			       - fdc->sc_sn) * SECSIZE;
-		}
-		if (max > fdc->sc_resid)
-			max = fdc->sc_resid;
-		if (pa >= 16*1024*1024) {
-			fdc->sc_flags |= FDF_BOUNCE;
-			pa = fdc->sc_buf;
-			if (max < DMABSIZE)
-				fdc->sc_amt = max;
-			else
-				fdc->sc_amt = DMABSIZE;
-		} else {
-			int prevpa, curpa, omax;
-			vm_offset_t va;
-
-			omax = max;
-			if (max > 65536 - (pa & 0xffff))
-				max = 65536 - (pa & 0xffff);
-			fdc->sc_amt = I386_PGBYTES - (pa & (I386_PGBYTES - 1));
-			va = (vm_offset_t)fdc->sc_addr + fdc->sc_amt;
-			prevpa = pa & ~(I386_PGBYTES - 1);
-			while (fdc->sc_amt < max) {
-				curpa = pmap_extract(kernel_pmap, va);
-				if (curpa >= 16*1024*1024
-				    || curpa != prevpa + I386_PGBYTES)
-					break;
-				fdc->sc_amt += I386_PGBYTES;
-				va += I386_PGBYTES;
-				prevpa = curpa;
-			}
-			if (fdc->sc_amt > max)
-				fdc->sc_amt = max;
-			if (fdc->sc_op == CMD_FORMAT) {
-				if (fdc->sc_amt != omax) {
-					fdc->sc_flags |= FDF_BOUNCE;
-					pa = fdc->sc_buf;
-					fdc->sc_amt = omax;
-				}
-			} else if (fdc->sc_amt != fdc->sc_resid) {
-				if (fdc->sc_amt < SECSIZE) {
-					fdc->sc_flags |= FDF_BOUNCE;
-					pa = fdc->sc_buf;
-					if (omax > DMABSIZE)
-						fdc->sc_amt = DMABSIZE;
-					else
-						fdc->sc_amt = omax;
-				} else
-					fdc->sc_amt &= ~(SECSIZE - 1);
-			}
-		}
-
-		DEBUGF(2, printf("fd%d: TRANSFER: amt %d cn %d tn %d sn %d\n",
-				 ui->unit, fdc->sc_amt, fdc->sc_cn,
-				 fdc->sc_tn, fdc->sc_sn + 1));
-
-		if ((fdc->sc_flags & FDF_BOUNCE) && fdc->sc_op != CMD_READ) {
-			fdc->sc_flags &= ~FDF_BOUNCE;
-			bcopy(fdc->sc_addr, (caddr_t)phystokv(fdc->sc_buf),
-			      fdc->sc_amt);
-		}
-		/*
-		 * Set up DMA.
-		 */
-		s = sploff();
-		outb(DMA_SINGLEMSK, 0x04 | 0x02);
-		outb(DMA_FLIPFLOP, 0);
-		outb(DMA_MODE, fdc->sc_mode);
-		outb(DMA2_ADDR, pa);
-		outb(DMA2_ADDR, pa >> 8);
-		outb(DMA2_PAGE, pa >> 16);
-		outb(DMA2_COUNT, fdc->sc_amt - 1);
-		outb(DMA2_COUNT, (fdc->sc_amt - 1) >> 8);
-		outb(DMA_SINGLEMSK, 0x02);
-		splon(s);
-
-		/*
-		 * Issue command to FDC.
-		 */
-		fdc->sc_state = TRANSFERDONE;
-		fdc->sc_cmd[0] = fdc->sc_op;
-		fdc->sc_cmd[1] = (fdc->sc_tn << 2) | ui->slave;
-		if (fdc->sc_op == CMD_FORMAT) {
-			fdc->sc_cmd[2] = 0x02;
-			fdc->sc_cmd[3] = dk->dk_nspt;
-			fdc->sc_cmd[4] = dk->dk_fgap;
-			fdc->sc_cmd[5] = 0xda;
-			fdcmd(um, 6);
-		} else {
-			fdc->sc_cmd[2] = fdc->sc_cn;
-			fdc->sc_cmd[3] = fdc->sc_tn;
-			fdc->sc_cmd[4] = fdc->sc_sn + 1;
-			fdc->sc_cmd[5] = 0x02;
-			fdc->sc_cmd[6] = dk->dk_nspt;
-			fdc->sc_cmd[7] = dk->dk_gap;
-			fdc->sc_cmd[8] = 0xff;
-			fdcmd(um, 9);
-		}
-		return;
-
-	case TRANSFERDONE:
-		/*
-		 * Transfer complete.
-		 */
-		if (fdc->sc_st0 & ST0_IC) {
-			fdc->sc_ioerr++;
-			if (sc->sc_flags & FDF_AUTO) {
-				/*
-				 * Give up on second try if
-				 * media detection is in progress.
-				 */
-				if (fdc->sc_ioerr == 2)
-					goto bad;
-				fdc->sc_state = RECAL;
-				break;
-			}
-			if (fdc->sc_ioerr == MAX_RETRIES) {
-				fderror(fderrmsg(ui), ui);
-				goto bad;
-			}
-			/*
-			 * Give up immediately on write-protected diskettes.
-			 */
-			if (fdc->sc_st1 & ST1_NW) {
-				fderror("write-protected diskette", ui);
-				goto bad;
-			}
-			/*
-			 * Limit transfer to a single sector.
-			 */
-			fdc->sc_flags |= FDF_LIMIT;
-			/*
-			 * Every fourth attempt recalibrate the drive.
-			 * Every eight attempt reset the controller.
-			 * Also, every eighth attempt inform user
-			 * about the error.
-			 */
-			if (fdc->sc_ioerr & 3)
-				fdc->sc_state = TRANSFER;
-			else if (fdc->sc_ioerr & 7)
-				fdc->sc_state = RECAL;
-			else {
-				fdc->sc_state = RESET;
-				fderror(fderrmsg(ui), ui);
-			}
-			break;
-		}
-		/*
-		 * Transfer completed successfully.
-		 * Advance counters/pointers, and if more
-		 * is left, initiate I/O.
-		 */
-		if (fdc->sc_flags & FDF_BOUNCE) {
-			fdc->sc_flags &= ~FDF_BOUNCE;
-			bcopy((caddr_t)phystokv(fdc->sc_buf), fdc->sc_addr,
-			      fdc->sc_amt);
-		}
-		if ((fdc->sc_resid -= fdc->sc_amt) == 0) {
-			bp->b_resid = 0;
-			fddone(ui, bp);
-			return;
-		}
-		fdc->sc_state = TRANSFER;
-		fdc->sc_ioerr = 0;
-		fdc->sc_addr += fdc->sc_amt;
-		if (fdc->sc_op == CMD_FORMAT) {
-			fdc->sc_sn = 0;
-			if (fdc->sc_tn == 1) {
-				fdc->sc_tn = 0;
-				fdc->sc_cn++;
-				fdc->sc_state = SEEK;
-			} else
-				fdc->sc_tn = 1;
-		} else {
-			fdc->sc_sn += fdc->sc_amt / SECSIZE;
-			while (fdc->sc_sn >= dk->dk_nspt) {
-				fdc->sc_sn -= dk->dk_nspt;
-				if (fdc->sc_tn == 1) {
-					fdc->sc_tn = 0;
-					fdc->sc_cn++;
-					fdc->sc_state = SEEK;
-				} else
-					fdc->sc_tn = 1;
-			}
-		}
-		break;
-
-	default:
-		printf("fd%d: invalid state\n", ui->unit);
-		panic("fdstate");
-		/*NOTREACHED*/
-	}
- bad:
-	bp->b_flags |= B_ERROR;
-	bp->b_error = EIO;
-	sc->sc_flags |= FDF_RECAL;
-	fddone(ui, bp);
-}
-
-/*
- * Terminate current request and start
- * any others that are queued.
- */
-int
-fddone(ui, bp)
-	struct bus_device *ui;
-	struct buf *bp;
-{
-	struct bus_ctlr *um = ui->mi;
-	struct fdsoftc *sc = &fdsoftc[ui->unit];
-	struct fdcsoftc *fdc = &fdcsoftc[um->unit];
-	struct buf *dp = &fdtab[um->unit];
-
-	DEBUGF(1, printf("fd%d: fddone()\n", ui->unit));
-
-	/*
-	 * Remove this request from queue.
-	 */
-	if (bp) {
-		fdutab[ui->unit].b_actf = bp->b_actf;
-		biodone(bp);
-		bp = &fdutab[ui->unit];
-		dp->b_actf = bp->b_forw;
-	} else
-		bp = &fdutab[ui->unit];
-
-	/*
-	 * Mark controller and drive idle.
-	 */
-	dp->b_active = 0;
-	bp->b_active = 0;
-	fdc->sc_state = IDLE;
-	sc->sc_mticks = 0;
-	fdc->sc_flags &= ~(FDF_LIMIT|FDF_BOUNCE);
-
-	/*
-	 * Start up other requests.
-	 */
-	fdustart(ui);
-	fdstart(um);
-
-	/*
-	 * Wakeup anyone waiting for drive or controller.
-	 */
-	if (sc->sc_flags & FDF_WANT) {
-		sc->sc_flags &= ~FDF_WANT;
-		wakeup((void *)sc);
-	}
-	if (fdc->sc_flags & FDF_WANT) {
-		fdc->sc_flags &= ~FDF_WANT;
-		wakeup((void *)fdc);
-	}
-}
-
-/*
- * Check if diskette change has occured since the last open.
- */
-int
-fddskchg(ui)
-	struct bus_device *ui;
-{
-	int s, dir;
-	struct fdsoftc *sc = &fdsoftc[ui->unit];
-	struct bus_ctlr *um = ui->mi;
-	struct fdcsoftc *fdc = &fdcsoftc[um->unit];
-
-	/*
-	 * Get access to controller.
-	 */
-	s = splbio();	
-	while (fdtab[um->unit].b_active) {
-		fdc->sc_flags |= FDF_WANT;
-		assert_wait((event_t)fdc, FALSE);
-		thread_block((void (*)())0);
-	}
-	fdtab[um->unit].b_active = 1;
-	fdutab[ui->unit].b_active = 1;
-
-	/*
-	 * Turn on drive motor and read digital input register.
-	 */
-	if (fdmotoron(ui)) {
-		timeout(wakeup, (void *)fdc, hz / 2);
-		assert_wait((event_t)fdc, FALSE);
-		thread_block((void (*)())0);
-	}
-	dir = inb(FD_DIR(um->address));
-	fddone(ui, NULL);
-	splx(s);
-
-	if (dir & DIR_DSKCHG) {
-		printf("fd%d: diskette change detected\n", ui->unit);
-		sc->sc_flags |= FDF_SEEK;
-		return (1);
-	}
-	return (0);
-}
-
-/*
- * Do media detection.
- */
-int
-fdauto(dev)
-	dev_t dev;
-{
-	int i, error = 0;
-	struct buf *bp;
-	struct bus_device *ui = fddinfo[fdunit(dev)];
-	struct fdsoftc *sc = &fdsoftc[ui->unit];
-	struct fddk *dk, *def = 0;
-
-	sc->sc_flags |= FDF_AUTO;
-	bp = (struct buf *)geteblk(SECSIZE);
-	for (i = 0, dk = fddk; i < NDKTYPES; i++, dk++) {
-		if ((dk->dk_drives & (1 << sc->sc_type)) == 0)
-			continue;
-		if (def == 0)
-			def = dk;
-		sc->sc_dk = dk;
-		bp->b_flags = B_READ;
-		bp->b_dev = dev;
-		bp->b_bcount = SECSIZE;
-		if (sc->sc_flags & FDF_SEEK) {
-			sc->sc_flags &= ~FDF_SEEK;
-			bp->b_blkno = 100;
-		} else
-			bp->b_blkno = 0;
-		fdstrategy(bp);
-		biowait(bp);
-		if ((bp->b_flags & B_ERROR) == 0 || bp->b_error == ENXIO)
-			break;
-	}
-	if (i == NDKTYPES) {
-		printf("fd%d: couldn't detect type, using %s\n",
-		       ui->unit, def->dk_name);
-		sc->sc_dk = def;
-	} else if ((bp->b_flags & B_ERROR) == 0)
-		printf("fd%d: detected %s\n", ui->unit, sc->sc_dk->dk_name);
-	else
-		error = ENXIO;
-	sc->sc_flags &= ~FDF_AUTO;
-	brelse(bp);
-	return (error);
-}
-
-/*
- * Turn on drive motor and select drive.
- */
-int
-fdmotoron(ui)
-	struct bus_device *ui;
-{
-	int bit;
-	struct bus_ctlr *um = ui->mi;
-	struct fdcsoftc *fdc = &fdcsoftc[um->unit];
-
-	bit = 1 << (ui->slave + 4);
-	if ((fdc->sc_dor & bit) == 0) {
-		fdc->sc_dor &= ~3;
-		fdc->sc_dor |= bit | ui->slave;
-		outb(FD_DOR(um->address), fdc->sc_dor);
-		return (1);
-	}
-	if ((fdc->sc_dor & 3) != ui->slave) {
-		fdc->sc_dor &= ~3;
-		fdc->sc_dor |= ui->slave;
-		outb(FD_DOR(um->address), fdc->sc_dor);
-	}
-	return (0);
-}
-
-/*
- * Turn off drive motor.
- */
-int
-fdmotoroff(ui)
-	struct bus_device *ui;
-{
-	struct bus_ctlr *um = ui->mi;
-	struct fdcsoftc *fdc = &fdcsoftc[um->unit];
-
-	fdc->sc_dor &= ~(1 << (ui->slave + 4));
-	outb(FD_DOR(um->address), fdc->sc_dor);
-}
-
-/*
- * This routine is invoked via timeout() by fdstart()
- * to call fdstate() at splbio.
- */
-void
-fdspinup(um)
-	struct bus_ctlr *um;
-{
-	int s;
-
-	s = splbio();
-	fdstate(um);
-	splx(s);
-}
-
-/*
- * Watchdog routine.
- * Check for hung operations.
- * Turn off motor of idle drives.
- */
-void
-fdwatch()
-{
-	int unit, s;
-	struct bus_device *ui;
-
-	timeout(fdwatch, 0, hz);
-	s = splbio();
-	for (unit = 0; unit < NFDC; unit++)
-		if (fdtab[unit].b_active
-		    && ++fdcsoftc[unit].sc_wticks == OP_TIMEOUT)
-			fdintr(unit);
-	for (unit = 0; unit < NFD; unit++) {
-		if ((ui = fddinfo[unit]) == 0 || ui->alive == 0)
-			continue;
-		if (fdutab[unit].b_active == 0
-		    && (fdcsoftc[ui->mi->unit].sc_dor & (1 << (ui->slave + 4)))
-		    && ++fdsoftc[unit].sc_mticks == MOTOR_TIMEOUT)
-			fdmotoroff(ui);
-	}
-	splx(s);
-}
-
-/*
- * Print an error message.
- */
-int
-fderror(msg, ui)
-	char *msg;
-	struct bus_device *ui;
-{
-	struct fdcsoftc *fdc = &fdcsoftc[ui->mi->unit];
-
-	printf("fd%d: %s, %sing cn %d tn %d sn %d\n", ui->unit, msg,
-	       (fdc->sc_op == CMD_READ ? "read"
-		: (fdc->sc_op == CMD_WRITE ? "writ" : "formatt")),
-	       fdc->sc_cn, fdc->sc_tn, fdc->sc_sn + 1);
-}
-
-/*
- * Return an error message for an I/O error.
- */
-char *
-fderrmsg(ui)
-	struct bus_device *ui;
-{
-	struct fdcsoftc *fdc = &fdcsoftc[ui->mi->unit];
-
-	if (fdc->sc_st1 & ST1_EC)
-		return ("invalid sector");
-	if (fdc->sc_st1 & ST1_DE)
-		return ("CRC error");
-	if (fdc->sc_st1 & ST1_OR)
-		return ("DMA overrun");
-	if (fdc->sc_st1 & ST1_ND)
-		return ("sector not found");
-	if (fdc->sc_st1 & ST1_NW)
-		return ("write-protected diskette");
-	if (fdc->sc_st1 & ST1_MA)
-		return ("missing address mark");
-	return ("hard error");
-}
-
-/*
- * Output a command to FDC.
- */
-int
-fdcmd(um, n)
-	struct bus_ctlr *um;
-	int n;
-{
-	int i, j;
-	struct fdcsoftc *fdc = &fdcsoftc[um->unit];
-
-	for (i = j = 0; i < 200; i++) {
-		if ((inb(FD_STATUS(um->address)) & (ST_RQM|ST_DIO)) != ST_RQM)
-			continue;
-		outb(FD_DATA(um->address), fdc->sc_cmd[j++]);
-		if (--n == 0)
-			return (1);
-	}
-	/*
-	 * Controller is not responding, reset it.
-	 */
-	DEBUGF(1, printf("fdc%d: fdcmd() failed\n", um->unit));
-	fdreset(um);
-	return (0);
-}
-
-/*
- * Read results from FDC.
- */
-int
-fdresults(um, rp)
-	struct bus_ctlr *um;
-	u_char *rp;
-{
-	int i, j, status;
-
-	for (i = j = 0; i < 200; i++) {
-		status = inb(FD_STATUS(um->address));
-		if ((status & ST_RQM) == 0)
-			continue;
-		if ((status & ST_DIO) == 0)
-			return (j);
-		if (j == 7)
-			break;
-		*rp++ = inb(FD_DATA(um->address));
-		j++;
-	}
-	/*
-	 * Controller is not responding, reset it.
-	 */
-	DEBUGF(1, printf("fdc%d: fdresults() failed\n", um->unit));
-	fdreset(um);
-	return (0);
-}
-
-/*
- * Reset controller.
- */
-int
-fdreset(um)
-	struct bus_ctlr *um;
-{
-	struct fdcsoftc *fdc = &fdcsoftc[um->unit];
-
-	outb(FD_DOR(um->address), fdc->sc_dor & ~(DOR_RSTCLR|DOR_IENABLE));
-	fdc->sc_state = RESETDONE;
-	fdc->sc_flags |= FDF_RESET;
-	outb(FD_DOR(um->address), fdc->sc_dor);
-}
-
-#endif /* NFD > 0 */
diff --git a/i386/i386at/nfdreg.h b/i386/i386at/nfdreg.h
deleted file mode 100644
index 9bdf44d..0000000
--- a/i386/i386at/nfdreg.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/* 
- * Copyright (c) 1994 Shantanu Goel
- * All Rights Reserved.
- * 
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * THE AUTHOR ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  THE AUTHOR DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- */
-
-/*
- * NEC 765/Intel 8272 floppy disk controller.
- */
-
-/*
- * Ports
- */
-#define FD_DOR(p)	(p)		/* digital output register */
-#define FD_STATUS(p)	((p) + 2)	/* status register */
-#define FD_DATA(p)	((p) + 3)	/* data register */
-#define FD_RATE(p)	((p) + 5)	/* transfer rate register */
-#define FD_DIR(p)	((p) + 5)	/* digital input register */
-
-/*
- * Digital output register.
- */
-#define DOR_IENABLE	0x08	/* enable interrupts and DMA */
-#define DOR_RSTCLR	0x04	/* clear reset */
-
-/*
- * Status register.
- */
-#define ST_RQM		0x80	/* request for master */
-#define ST_DIO		0x40	/* direction of data transfer
-				   1 = fdc to cpu, 0 = cpu to fdc */
-#define ST_NDM		0x20	/* non DMA mode */
-#define ST_CB		0x10	/* controller busy */
-
-/*
- * Digital input register.
- */
-#define DIR_DSKCHG	0x80	/* diskette chnage has occured */
-
-/*
- * ST0
- */
-#define ST0_IC		0xc0	/* interrupt code */
-#define ST0_SE		0x20	/* seek end */
-#define ST0_EC		0x10	/* equipment check */
-#define ST0_NR		0x08	/* not ready */
-#define ST0_HD		0x04	/* head address */
-#define ST0_US		0x03	/* unit select */
-
-/*
- * ST1
- */
-#define ST1_EC		0x80	/* end of cylinder */
-#define ST1_DE		0x20	/* CRC data error */
-#define ST1_OR		0x10	/* DMA overrun */
-#define ST1_ND		0x04	/* sector not found */
-#define ST1_NW		0x02	/* write-protected diskette */
-#define ST1_MA		0x01	/* missing address mark */
-
-/*
- * ST2
- */
-#define ST2_CM		0x40	/* control mark */
-#define ST2_DD		0x20	/* data error */
-#define ST2_WC		0x10	/* wrong cylinder */
-#define ST2_SH		0x08	/* scan equal hit */
-#define ST2_SN		0x04	/* scan not satisfied */
-#define ST2_BC		0x02	/* bad cylinder */
-#define ST2_MD		0x01	/* missing address mark */
-
-/*
- * ST3
- */
-#define ST3_FT		0x80	/* fault */
-#define ST3_WP		0x40	/* write protect */
-#define ST3_RY		0x20	/* ready */
-#define ST3_T0		0x10	/* track 0 */
-#define ST3_TS		0x08	/* two side */
-#define ST3_HD		0x04	/* head address */
-#define ST3_US		0x03	/* unit select */
-
-/*
- * Commands.
- */
-#define CMD_SPECIFY	0x03
-#define CMD_RECAL	0x07
-#define CMD_SENSEI	0x08
-#define CMD_SEEK	0x0f
-#define CMD_FORMAT	0x4d
-#define CMD_WRITE	0xc5
-#define CMD_READ	0xe6
-
-/*
- * Information required by FDC when formatting a diskette.
- */
-struct format_info {
-	unsigned char	cyl;
-	unsigned char	head;
-	unsigned char	sector;
-	unsigned char	secsize;
-};