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freebsd-dev/sys/dev/ata/ata-disk.c
Poul-Henning Kamp 2447bec829 Simplify cdevsw registration. 
The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it.  cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.

cdevsw_add() will print an message if the d_maj field looks bogus.

Remove nblkdev and nchrdev variables.  Most places they were used
bogusly.  Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.

Move bdevsw() and devsw() functions to kern/kern_conf.c

Bump __FreeBSD_version to 400006

This commit removes:
        72 bogus makedev() calls
        26 bogus SYSINIT functions

if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.

I4b and vinum not changed.  Patches emailed to authors.  LINT
probably broken until they catch up.
1999-05-31 11:29:30 +00:00

692 lines
20 KiB
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/*-
* Copyright (c) 1998,1999 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: ata-disk.c,v 1.12 1999/05/30 16:51:12 phk Exp $
*/
#include "ata.h"
#include "atadisk.h"
#include "opt_devfs.h"
#if NATA > 0 && NATADISK > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/disklabel.h>
#include <sys/diskslice.h>
#include <sys/devicestat.h>
#include <sys/fcntl.h>
#include <sys/conf.h>
#include <sys/stat.h>
#ifdef DEVFS
#include <sys/devfsext.h>
#endif
#include <machine/clock.h>
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-disk.h>
static d_open_t adopen;
static d_close_t adclose;
static d_ioctl_t adioctl;
static d_strategy_t adstrategy;
static d_psize_t adpsize;
#define BDEV_MAJOR 30
#define CDEV_MAJOR 116
#ifdef NOTYET /* the boot code needs to be fixed to boot arbitrary devices */
#define DRIVER_NAME "ad"
#else
#define DRIVER_NAME "wd"
#endif
static struct cdevsw ad_cdevsw = {
/* open */ adopen,
/* close */ adclose,
/* read */ physread,
/* write */ physwrite,
/* ioctl */ adioctl,
/* stop */ nostop,
/* reset */ noreset,
/* devtotty */ nodevtotty,
/* poll */ nopoll,
/* mmap */ nommap,
/* strategy */ adstrategy,
/* name */ DRIVER_NAME,
/* parms */ noparms,
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ adpsize,
/* flags */ D_DISK,
/* maxio */ 0,
/* bmaj */ BDEV_MAJOR,
};
static struct cdevsw fakewd_cdevsw;
/* misc defines */
#define UNIT(dev) (minor(dev)>>3 & 0x1f) /* assume 8 minor # per unit */
#define NUNIT 16 /* max # of devices */
/* prototypes */
static void ad_attach(void *);
static int32_t ad_getparam(struct ad_softc *);
static void ad_strategy(struct buf *);
static void ad_start(struct ad_softc *);
static void ad_sleep(struct ad_softc *, int8_t *);
static int8_t ad_version(u_int16_t);
int32_t ad_timeout(char *data);
static void ad_drvinit(void);
static struct ad_softc *adtab[NUNIT];
static int32_t adnlun = 0; /* number of config'd drives */
static struct intr_config_hook *ad_attach_hook;
static __inline int
apiomode(struct ata_params *ap)
{
if ((ap->atavalid & 2) == 2) {
if ((ap->apiomodes & 2) == 2) return 4;
if ((ap->apiomodes & 1) == 1) return 3;
}
return -1;
}
static __inline int
wdmamode(struct ata_params *ap)
{
if ((ap->atavalid & 2) == 2) {
if ((ap->wdmamodes & 4) == 4) return 2;
if ((ap->wdmamodes & 2) == 2) return 1;
if ((ap->wdmamodes & 1) == 1) return 0;
}
return -1;
}
static __inline int
udmamode(struct ata_params *ap)
{
if ((ap->atavalid & 4) == 4) {
if ((ap->udmamodes & 4) == 4) return 2;
if ((ap->udmamodes & 2) == 2) return 1;
if ((ap->udmamodes & 1) == 1) return 0;
}
return -1;
}
static void
ad_attach(void *notused)
{
struct ad_softc *adp;
int32_t ctlr, dev, secsperint;
int8_t model_buf[40+1];
int8_t revision_buf[8+1];
/* now, run through atadevices and look for ATA disks */
for (ctlr=0; ctlr<MAXATA; ctlr++) {
if (!atadevices[ctlr]) continue;
for (dev=0; dev<2; dev++) {
if (atadevices[ctlr]->devices &
(dev ? ATA_ATA_SLAVE : ATA_ATA_MASTER)) {
#ifdef ATA_STATIC_ID
adnlun = dev + ctlr * 2;
#endif
adp = adtab[adnlun];
if (adp)
printf("ad%d: unit already attached\n", adnlun);
if (!(adp = malloc(sizeof(struct ad_softc),
M_DEVBUF, M_NOWAIT))) {
printf("ad%d: failed to allocate driver storage\n", adnlun);
continue;
}
bzero(adp, sizeof(struct ad_softc));
adp->controller = atadevices[ctlr];
adp->unit = (dev == 0) ? ATA_MASTER : ATA_SLAVE;
adp->lun = adnlun;
if (ad_getparam(adp)) {
free(adp, M_DEVBUF);
continue;
}
adp->cylinders = adp->ata_parm->cylinders;
adp->heads = adp->ata_parm->heads;
adp->sectors = adp->ata_parm->sectors;
adp->total_secs = adp->cylinders * adp->heads * adp->sectors;
if (adp->cylinders == 16383 &&
adp->total_secs < adp->ata_parm->lbasize) {
adp->total_secs = adp->ata_parm->lbasize;
adp->cylinders = adp->total_secs/(adp->heads*adp->sectors);
}
if (adp->ata_parm->atavalid & ATA_FLAG_54_58 &&
adp->ata_parm->lbasize)
adp->flags |= AD_F_USE_LBA;
/* use multiple sectors/interrupt if device supports it */
adp->transfersize = DEV_BSIZE;
secsperint = min(adp->ata_parm->nsecperint, 16);
if (!ata_command(adp->controller, adp->unit, ATA_C_SET_MULTI,
0, 0, 0, secsperint, 0, ATA_WAIT_INTR) &&
ata_wait(adp->controller, adp->unit, ATA_S_DRDY) >= 0)
adp->transfersize *= secsperint;
/* use DMA if drive & controller supports it */
if (!ata_dmainit(adp->controller, adp->unit,
apiomode(adp->ata_parm),
wdmamode(adp->ata_parm),
udmamode(adp->ata_parm)))
adp->flags |= AD_F_DMA_ENABLED;
bpack(adp->ata_parm->model, model_buf, sizeof(model_buf));
bpack(adp->ata_parm->revision, revision_buf,
sizeof(revision_buf));
printf("ad%d: <%s/%s> ATA-%c disk at ata%d as %s\n",
adnlun,
model_buf, revision_buf,
ad_version(adp->ata_parm->versmajor),
ctlr,
(adp->unit == ATA_MASTER) ? "master" : "slave ");
printf("ad%d: %luMB (%u sectors), "
"%u cyls, %u heads, %u S/T, %u B/S\n",
adnlun,
adp->total_secs / ((1024L * 1024L) / DEV_BSIZE),
adp->total_secs,
adp->cylinders,
adp->heads,
adp->sectors,
DEV_BSIZE);
printf("ad%d: piomode=%d, dmamode=%d, udmamode=%d\n",
adnlun,
apiomode(adp->ata_parm),
wdmamode(adp->ata_parm),
udmamode(adp->ata_parm));
printf("ad%d: %d secs/int, %d depth queue, %s mode\n",
adnlun, adp->transfersize / DEV_BSIZE,
adp->ata_parm->queuelen & 0x1f,
(adp->flags & AD_F_DMA_ENABLED) ? "DMA" :"PIO");
devstat_add_entry(&adp->stats, "ad", adnlun, DEV_BSIZE,
DEVSTAT_NO_ORDERED_TAGS,
DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_IDE,
0x180);
#ifdef DEVFS
adp->cdevs_token = devfs_add_devswf(&ad_cdevsw,
dkmakeminor(adp->lun, 0, 0),
DV_CHR,
UID_ROOT, GID_OPERATOR,
0640, "rad%d", adp->lun);
adp->bdevs_token = devfs_add_devswf(&ad_cdevsw,
dkmakeminor(adp->lun, 0, 0),
DV_BLK,
UID_ROOT, GID_OPERATOR,
0640, "ad%d", adp->lun);
#endif
bufq_init(&adp->queue);
adtab[adnlun++] = adp;
}
}
}
config_intrhook_disestablish(ad_attach_hook);
}
static int32_t
ad_getparam(struct ad_softc *adp)
{
struct ata_params *ata_parm;
int8_t buffer[DEV_BSIZE];
/* select drive */
outb(adp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | adp->unit);
DELAY(1);
ata_command(adp->controller, adp->unit, ATA_C_ATA_IDENTIFY,
0, 0, 0, 0, 0, ATA_WAIT_INTR);
if (ata_wait(adp->controller, adp->unit,
ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ))
return -1;
insw(adp->controller->ioaddr + ATA_DATA, buffer,
sizeof(buffer)/sizeof(int16_t));
ata_parm = malloc(sizeof(struct ata_params), M_DEVBUF, M_NOWAIT);
if (!ata_parm)
return -1;
bcopy(buffer, ata_parm, sizeof(struct ata_params));
bswap(ata_parm->model, sizeof(ata_parm->model));
btrim(ata_parm->model, sizeof(ata_parm->model));
bswap(ata_parm->revision, sizeof(ata_parm->revision));
btrim(ata_parm->revision, sizeof(ata_parm->revision));
adp->ata_parm = ata_parm;
return 0;
}
static int
adopen(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
{
int32_t lun = UNIT(dev);
struct ad_softc *adp;
struct disklabel label;
int32_t error;
#ifdef AD_DEBUG
printf("adopen: lun=%d adnlun=%d\n", lun, adnlun);
#endif
if (lun >= adnlun || !(adp = adtab[lun]))
return ENXIO;
/* spinwait if anybody else is reading the disk label */
/* is this needed anymore ?? SOS XXX */
while (adp->flags & AD_F_LABELLING)
tsleep((caddr_t)&adp->flags, PZERO - 1, "adop1", 1);
/* protect agains label race */
adp->flags |= AD_F_LABELLING;
/* build disklabel and initilize slice tables */
bzero(&label, sizeof label);
label.d_secsize = DEV_BSIZE;
label.d_nsectors = adp->sectors;
label.d_ntracks = adp->heads;
label.d_ncylinders = adp->cylinders;
label.d_secpercyl = adp->sectors * adp->heads;
label.d_secperunit = adp->total_secs;
error = dsopen("ad", dev, fmt, 0, &adp->slices, &label, ad_strategy,
(ds_setgeom_t *)NULL, &ad_cdevsw);
adp->flags &= ~AD_F_LABELLING;
ad_sleep(adp, "adop2");
return error;
}
static int
adclose(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
{
int32_t lun = UNIT(dev);
struct ad_softc *adp;
#ifdef AD_DEBUG
printf("adclose: lun=%d adnlun=%d\n", lun, adnlun);
#endif
if (lun >= adnlun || !(adp = adtab[lun]))
return ENXIO;
dsclose(dev, fmt, adp->slices);
return 0;
}
static int
adioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flags, struct proc *p)
{
struct ad_softc *adp;
int32_t lun = UNIT(dev);
int32_t error = 0;
if (lun >= adnlun || !(adp = adtab[lun]))
return ENXIO;
ad_sleep(adp, "adioct");
error = dsioctl("sd", dev, cmd, addr, flags, &adp->slices,
ad_strategy, (ds_setgeom_t *)NULL);
if (error != ENOIOCTL)
return error;
return ENOTTY;
}
static void
adstrategy(struct buf *bp)
{
struct ad_softc *adp;
int32_t lun = UNIT(bp->b_dev);
int32_t s;
#ifdef AD_DEBUG
printf("adstrategy: entered\n");
#endif
if (lun >= adnlun || bp->b_blkno < 0 || !(adp = adtab[lun])
|| bp->b_bcount % DEV_BSIZE != 0) {
bp->b_error = EINVAL;
bp->b_flags |= B_ERROR;
biodone(bp);
return;
}
if (dscheck(bp, adp->slices) <= 0) {
biodone(bp);
return;
}
/* hang around if somebody else is labelling */
if (adp->flags & AD_F_LABELLING)
ad_sleep(adp, "adlab");
s = splbio();
bufqdisksort(&adp->queue, bp);
if (!adp->active)
ad_start(adp);
if (adp->controller->active == ATA_IDLE)
ata_start(adp->controller);
splx(s);
return;
}
static int
adpsize(dev_t dev)
{
struct ad_softc *adp;
int32_t lun = UNIT(dev);
if (lun >= adnlun || !(adp = adtab[lun]))
return -1;
return dssize(dev, &adp->slices, adopen, adclose);
}
static void
ad_strategy(struct buf *bp)
{
adstrategy(bp);
}
static void
ad_start(struct ad_softc *adp)
{
struct buf *bp;
#ifdef AD_DEBUG
printf("ad_start:\n");
#endif
if (adp->active) {
printf("ad_start: should newer be called when active\n"); /* SOS */
return;
}
if (!(bp = bufq_first(&adp->queue)))
return;
/* remove from drive queue */
bufq_remove(&adp->queue, bp);
bp->b_driver1 = adp;
/* link onto controller queue */
bufq_insert_tail(&adp->controller->ata_queue, bp);
/* mark the drive as busy */
adp->active = 1;
}
void
ad_transfer(struct buf *bp)
{
struct ad_softc *adp;
u_int32_t blknum, secsprcyl;
u_int32_t cylinder, head, sector, count, command;
/* get request params */
adp = bp->b_driver1;
/* calculate transfer details */
blknum = bp->b_pblkno + (adp->donecount / DEV_BSIZE);
#ifdef AD_DEBUG
printf("ad_transfer: blknum=%d\n", blknum);
#endif
if (adp->donecount == 0) {
/* setup transfer parameters */
adp->bytecount = bp->b_bcount;
count = howmany(adp->bytecount, DEV_BSIZE);
if (adp->flags & AD_F_USE_LBA) {
sector = (blknum >> 0) & 0xff;
cylinder = (blknum >> 8) & 0xffff;
head = ((blknum >> 24) & 0xf) | ATA_D_LBA;
}
else {
secsprcyl = adp->sectors * adp->heads;
cylinder = blknum / secsprcyl;
head = (blknum % secsprcyl) / adp->sectors;
sector = (blknum % adp->sectors) + 1;
}
/* setup first transfer length */
adp->currentsize = min(adp->bytecount, adp->transfersize);
devstat_start_transaction(&adp->stats);
/* does this drive & transfer work with DMA ? */
adp->flags &= ~AD_F_DMA_USED;
if ((adp->flags & AD_F_DMA_ENABLED) &&
!ata_dmasetup(adp->controller, adp->unit,
(void *)bp->b_data, adp->bytecount,
(bp->b_flags & B_READ))) {
adp->flags |= AD_F_DMA_USED;
command = (bp->b_flags&B_READ) ? ATA_C_READ_DMA : ATA_C_WRITE_DMA;
adp->currentsize = adp->bytecount;
}
/* does this drive support multi sector transfers ? */
else if (adp->currentsize > DEV_BSIZE)
command = (bp->b_flags&B_READ) ? ATA_C_READ_MULTI:ATA_C_WRITE_MULTI;
else
command = (bp->b_flags&B_READ) ? ATA_C_READ : ATA_C_WRITE;
ata_command(adp->controller, adp->unit, command, cylinder, head,
sector, count, 0, ATA_IMMEDIATE);
}
/* if this is a DMA transaction start it, return and wait for interrupt */
if (adp->flags & AD_F_DMA_USED) {
ata_dmastart(adp->controller, adp->unit);
#ifdef AD_DEBUG
printf("ad_transfer: return waiting for DMA interrupt\n");
#endif
return;
}
/* calculate this transfer length */
adp->currentsize = min(adp->bytecount, adp->transfersize);
/* if this is a PIO read operation, return and wait for interrupt */
if (bp->b_flags & B_READ) {
#ifdef AD_DEBUG
printf("ad_transfer: return waiting for PIO read interrupt\n");
#endif
return;
}
/* ready to write PIO data ? */
if (ata_wait(adp->controller, adp->unit,
ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ) < 0) {
printf("ad_transfer: timeout waiting for DRQ");
}
/* output the data */
#if 0
outsw(adp->controller->ioaddr + ATA_DATA,
(void *)((uintptr_t)bp->b_data + adp->donecount),
adp->currentsize / sizeof(int16_t));
#else
outsl(adp->controller->ioaddr + ATA_DATA,
(void *)((uintptr_t)bp->b_data + adp->donecount),
adp->currentsize / sizeof(int32_t));
#endif
adp->bytecount -= adp->currentsize;
#ifdef AD_DEBUG
printf("ad_transfer: return wrote data\n");
#endif
}
int32_t
ad_interrupt(struct buf *bp)
{
struct ad_softc *adp = bp->b_driver1;
int32_t dma_stat = 0;
/* finish DMA transfer */
if (adp->flags & AD_F_DMA_USED) {
if (!(ata_dmastatus(adp->controller, adp->unit) & ATA_BMSTAT_INTERRUPT)){
printf("extra SMP interrupt\n");
return ATA_OP_CONTINUES;
}
dma_stat = ata_dmadone(adp->controller, adp->unit);
}
/* get drive status */
if (ata_wait(adp->controller, adp->unit, 0) < 0)
printf("ad_interrupt: timeout waiting for status");
if (adp->controller->status & (ATA_S_ERROR | ATA_S_CORR) ||
(adp->flags & AD_F_DMA_USED && dma_stat != ATA_BMSTAT_INTERRUPT)) {
oops:
printf("ad%d: status=%02x error=%02x\n",
adp->lun, adp->controller->status, adp->controller->error);
if (adp->controller->status & ATA_S_ERROR) {
printf("ad_interrupt: hard error\n");
bp->b_error = EIO;
bp->b_flags |= B_ERROR;
}
if (adp->controller->status & ATA_S_CORR)
printf("ad_interrupt: soft ECC\n");
}
/* if this was a PIO read operation, get the data */
if (adp->active && !(adp->flags & AD_F_DMA_USED) &&
((bp->b_flags & (B_READ | B_ERROR)) == B_READ)) {
/* ready to receive data? */
if ((adp->controller->status & (ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ))
!= (ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ))
printf("ad_interrupt: read interrupt arrived early");
if (ata_wait(adp->controller, adp->unit,
ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ) != 0){
printf("ad_interrupt: read error detected late");
goto oops;
}
/* data ready, read in */
#if 0
insw(adp->controller->ioaddr + ATA_DATA,
(void *)((uintptr_t)bp->b_data + adp->donecount),
adp->currentsize / sizeof(int16_t));
#else
insl(adp->controller->ioaddr + ATA_DATA,
(void *)((uintptr_t)bp->b_data + adp->donecount),
adp->currentsize / sizeof(int32_t));
#endif
adp->bytecount -= adp->currentsize;
#ifdef AD_DEBUG
printf("ad_interrupt: read in data\n");
#endif
}
/* if this was a DMA operation finish up */
if (adp->active && (adp->flags & AD_F_DMA_USED) && !(bp->b_flags & B_ERROR))
adp->bytecount -= adp->currentsize;
/* finish up this tranfer, check for more work on this buffer */
if (adp->controller->active == ATA_ACTIVE_ATA) {
if ((bp->b_flags & B_ERROR) == 0) {
adp->donecount += adp->currentsize;
#ifdef AD_DEBUG
printf("ad_interrupt: %s op OK\n", (bp->b_flags & B_READ)?"R":"W");
#endif
if (adp->bytecount > 0) {
ad_transfer(bp);
return ATA_OP_CONTINUES;
}
}
bufq_remove(&adp->controller->ata_queue, bp);
bp->b_resid = bp->b_bcount - adp->donecount;
biodone(bp);
devstat_end_transaction(&adp->stats, adp->donecount,
DEVSTAT_TAG_NONE,
(bp->b_flags & B_READ) ?
DEVSTAT_READ : DEVSTAT_WRITE);
adp->donecount = 0;
adp->active = 0;
}
ad_start(adp);
#ifdef AD_DEBUG
printf("ad_interrupt: completed\n");
#endif
return ATA_OP_FINISHED;
}
static void
ad_sleep(struct ad_softc *adp, int8_t *mesg)
{
int32_t s = splbio();
while (adp->controller->active != ATA_IDLE)
tsleep((caddr_t)&adp->controller->active, PZERO - 1, mesg, 1);
splx(s);
}
static int8_t
ad_version(u_int16_t version)
{
int32_t bit;
if (version == 0xffff)
return '?';
for (bit = 15; bit >= 0; bit--)
if (version & (1<<bit))
return ('0' + bit);
return '?';
}
static void
ad_drvinit(void)
{
static int32_t ad_devsw_installed = 0;
if (!ad_devsw_installed) {
cdevsw_add(&ad_cdevsw);
fakewd_cdevsw = ad_cdevsw;
fakewd_cdevsw.d_maj = 3;
fakewd_cdevsw.d_bmaj = 0;
cdevsw_add(&fakewd_cdevsw); /* grap wd entries too */
ad_devsw_installed = 1;
}
/* register callback for when interrupts are enabled */
if (!(ad_attach_hook =
(struct intr_config_hook *)malloc(sizeof(struct intr_config_hook),
M_TEMP, M_NOWAIT))) {
printf("ad: malloc attach_hook failed\n");
return;
}
bzero(ad_attach_hook, sizeof(struct intr_config_hook));
ad_attach_hook->ich_func = ad_attach;
if (config_intrhook_establish(ad_attach_hook) != 0) {
printf("ad: config_intrhook_establish failed\n");
free(ad_attach_hook, M_TEMP);
}
}
SYSINIT(addev, SI_SUB_DRIVERS, SI_ORDER_SECOND, ad_drvinit, NULL)
#endif /* NATA && NATADISK */
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