989fb3947c
reports on those most welcome!
Fixed problems:
Hang on probe on "fantom" devices.
The probe now use a timeout to avoid hangs if no interrupt
is recevied.
There has also been more general code clenaups, and some reorgs.
445 lines
12 KiB
C
445 lines
12 KiB
C
/*-
|
|
* 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: atapi-fd.c,v 1.2 1999/03/05 09:43:30 sos Exp $
|
|
*/
|
|
|
|
#include "ata.h"
|
|
#include "atapifd.h"
|
|
#include "opt_devfs.h"
|
|
|
|
#if NATA > 0 && NATAPIFD > 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/cdio.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/stat.h>
|
|
#ifdef DEVFS
|
|
#include <sys/devfsext.h>
|
|
#endif
|
|
#include <dev/ata/ata-all.h>
|
|
#include <dev/ata/atapi-all.h>
|
|
#include <dev/ata/atapi-fd.h>
|
|
|
|
static d_open_t afdopen;
|
|
static d_close_t afdclose;
|
|
static d_read_t afdread;
|
|
static d_write_t afdwrite;
|
|
static d_ioctl_t afdioctl;
|
|
static d_strategy_t afdstrategy;
|
|
|
|
#define CDEV_MAJOR 87
|
|
#define BDEV_MAJOR 1
|
|
|
|
static struct cdevsw afd_cdevsw = {
|
|
afdopen, afdclose, afdread, afdwrite,
|
|
afdioctl, nostop, nullreset, nodevtotty,
|
|
seltrue, nommap, afdstrategy, "afd",
|
|
NULL, -1, nodump, nopsize,
|
|
D_DISK, 0, -1
|
|
};
|
|
|
|
#define NUNIT 8
|
|
#define UNIT(d) ((minor(d) >> 3) & 3)
|
|
|
|
#define F_OPEN 0x0001 /* The device is opened */
|
|
#define F_MEDIA_CHANGED 0x0002 /* The media have changed */
|
|
|
|
static struct afd_softc *afdtab[NUNIT]; /* Drive info by unit number */
|
|
static int32_t afdnlun = 0; /* Number of config'd drives */
|
|
|
|
int32_t afdattach(struct atapi_softc *);
|
|
static int32_t afd_sense(struct afd_softc *);
|
|
static void afd_describe(struct afd_softc *);
|
|
static void afd_strategy(struct buf *);
|
|
static void afd_start(struct afd_softc *);
|
|
static void afd_done(struct atapi_request *);
|
|
static int32_t afd_start_device(struct afd_softc *, int32_t);
|
|
static int32_t afd_lock_device(struct afd_softc *, int32_t);
|
|
static int32_t afd_eject(struct afd_softc *, int32_t);
|
|
static void afd_drvinit(void *);
|
|
|
|
int32_t
|
|
afdattach(struct atapi_softc *atp)
|
|
{
|
|
struct afd_softc *fdp;
|
|
|
|
if (afdnlun >= NUNIT) {
|
|
printf("afd: too many units\n");
|
|
return -1;
|
|
}
|
|
fdp = malloc(sizeof(struct afd_softc), M_TEMP, M_NOWAIT);
|
|
if (!fdp) {
|
|
printf("afd: out of memory\n");
|
|
return -1;
|
|
}
|
|
bzero(fdp, sizeof(struct afd_softc));
|
|
bufq_init(&fdp->buf_queue);
|
|
fdp->atp = atp;
|
|
fdp->lun = afdnlun;
|
|
fdp->flags = F_MEDIA_CHANGED;
|
|
|
|
if (afd_sense(fdp)) {
|
|
free(fdp, M_TEMP);
|
|
return -1;
|
|
}
|
|
|
|
afd_describe(fdp);
|
|
afdtab[afdnlun++] = fdp;
|
|
devstat_add_entry(&fdp->stats, "afd", fdp->lun, DEV_BSIZE,
|
|
DEVSTAT_NO_ORDERED_TAGS,
|
|
DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_IDE,
|
|
0x178);
|
|
#ifdef DEVFS
|
|
fdp->cdevs_token = devfs_add_devswf(&afd_cdevsw, dkmakeminor(fdp->lun, 0,0),
|
|
DV_CHR, UID_ROOT, GID_OPERATOR,
|
|
0640, "rafd%d", fdp->lun);
|
|
fdp->bdevs_token = devfs_add_devswf(&afd_cdevsw, dkmakeminor(fdp->lun, 0,0),
|
|
DV_BLK, UID_ROOT, GID_OPERATOR,
|
|
0640, "afd%d", fdp->lun);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int32_t
|
|
afd_sense(struct afd_softc *fdp)
|
|
{
|
|
int32_t error, count;
|
|
int8_t buffer[256];
|
|
int8_t ccb[16] = { ATAPI_MODE_SENSE, 0, ATAPI_REWRITEABLE_CAP_PAGE,
|
|
0, 0, 0, 0, sizeof(buffer)>>8, sizeof(buffer) & 0xff,
|
|
0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
bzero(buffer, sizeof(buffer));
|
|
/* Get drive capabilities, some drives needs this repeated */
|
|
for (count = 0 ; count < 5 ; count++) {
|
|
if (!(error = atapi_queue_cmd(fdp->atp, ccb, buffer, sizeof(buffer),
|
|
A_READ, NULL, NULL, NULL)))
|
|
break;
|
|
}
|
|
#ifdef AFD_DEBUG
|
|
atapi_dump("afd: sense", buffer, sizeof(buffer));
|
|
#endif
|
|
if (error)
|
|
return error;
|
|
bcopy(buffer, &fdp->header, sizeof(struct afd_header));
|
|
bcopy(buffer+sizeof(struct afd_header), &fdp->cap,
|
|
sizeof(struct afd_cappage));
|
|
if (fdp->cap.page_code != ATAPI_REWRITEABLE_CAP_PAGE)
|
|
return 1;
|
|
fdp->cap.cylinders = ntohs(fdp->cap.cylinders);
|
|
fdp->cap.sector_size = ntohs(fdp->cap.sector_size);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
afd_describe(struct afd_softc *fdp)
|
|
{
|
|
int8_t model_buf[40+1];
|
|
int8_t revision_buf[8+1];
|
|
|
|
bpack(fdp->atp->atapi_parm->model, model_buf, sizeof(model_buf));
|
|
bpack(fdp->atp->atapi_parm->revision, revision_buf, sizeof(revision_buf));
|
|
printf("afd%d: <%s/%s> rewriteable drive at ata%d as %s\n",
|
|
fdp->lun, model_buf, revision_buf,
|
|
fdp->atp->controller->unit,
|
|
(fdp->atp->unit == ATA_MASTER) ? "master" : "slave ");
|
|
printf("afd%d: %luMB (%u sectors), %u cyls, %u heads, %u S/T, %u B/S\n",
|
|
afdnlun,
|
|
(fdp->cap.cylinders * fdp->cap.heads * fdp->cap.sectors) /
|
|
((1024L * 1024L) / fdp->cap.sector_size),
|
|
fdp->cap.cylinders * fdp->cap.heads * fdp->cap.sectors,
|
|
fdp->cap.cylinders, fdp->cap.heads, fdp->cap.sectors,
|
|
fdp->cap.sector_size);
|
|
printf("afd%d: ", fdp->lun);
|
|
switch (fdp->header.medium_type) {
|
|
default: printf("Unknown media (0x%x)", fdp->header.medium_type);
|
|
}
|
|
if (fdp->header.wp) printf(", writeprotected");
|
|
printf("\n");
|
|
}
|
|
|
|
static int
|
|
afdopen(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
|
|
{
|
|
struct afd_softc *fdp;
|
|
struct disklabel label;
|
|
int32_t lun = UNIT(dev);
|
|
|
|
if (lun >= afdnlun || !(fdp = afdtab[lun]))
|
|
return ENXIO;
|
|
|
|
fdp->flags &= ~F_MEDIA_CHANGED;
|
|
afd_lock_device(fdp, 1);
|
|
if (afd_sense(fdp))
|
|
printf("afd%d: sense media type failed\n", fdp->lun);
|
|
|
|
/* build disklabel and initilize slice tables */
|
|
bzero(&label, sizeof label);
|
|
label.d_secsize = fdp->cap.sector_size;
|
|
label.d_nsectors = fdp->cap.sectors;
|
|
label.d_ntracks = fdp->cap.heads;
|
|
label.d_ncylinders = fdp->cap.cylinders;
|
|
label.d_secpercyl = fdp->cap.heads * fdp->cap.sectors;
|
|
label.d_secperunit = fdp->cap.heads * fdp->cap.sectors * fdp->cap.cylinders;
|
|
|
|
/* Initialize slice tables. */
|
|
return dsopen("afd", dev, fmt, 0, &fdp->slices, &label, afd_strategy,
|
|
(ds_setgeom_t *)NULL, &afd_cdevsw);
|
|
}
|
|
|
|
static int
|
|
afdclose(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
|
|
{
|
|
int32_t lun = UNIT(dev);
|
|
struct afd_softc *fdp;
|
|
|
|
if (lun >= afdnlun || !(fdp = afdtab[lun]))
|
|
return ENXIO;
|
|
|
|
dsclose(dev, fmt, fdp->slices);
|
|
if(!dsisopen(fdp->slices))
|
|
afd_lock_device(fdp, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
afdread(dev_t dev, struct uio *uio, int32_t ioflag)
|
|
{
|
|
return physio(afdstrategy, NULL, dev, 1, minphys, uio);
|
|
}
|
|
|
|
static int
|
|
afdwrite(dev_t dev, struct uio *uio, int32_t ioflag)
|
|
{
|
|
return physio(afdstrategy, NULL, dev, 0, minphys, uio);
|
|
}
|
|
|
|
static int
|
|
afdioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct proc *p)
|
|
{
|
|
int32_t lun = UNIT(dev);
|
|
int32_t error = 0;
|
|
struct afd_softc *fdp;
|
|
|
|
if (lun >= afdnlun || !(fdp = afdtab[lun]))
|
|
return ENXIO;
|
|
|
|
error = dsioctl("sd", dev, cmd, addr, flag, &fdp->slices,
|
|
afd_strategy, (ds_setgeom_t *)NULL);
|
|
|
|
if (error != ENOIOCTL)
|
|
return error;
|
|
|
|
switch (cmd) {
|
|
case CDIOCEJECT:
|
|
if ((fdp->flags & F_OPEN) && fdp->refcnt)
|
|
return EBUSY;
|
|
return afd_eject(fdp, 0);
|
|
|
|
case CDIOCCLOSE:
|
|
if ((fdp->flags & F_OPEN) && fdp->refcnt)
|
|
return 0;
|
|
return afd_eject(fdp, 1);
|
|
|
|
default:
|
|
return ENOTTY;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
afdstrategy(struct buf *bp)
|
|
{
|
|
int32_t lun = UNIT(bp->b_dev);
|
|
struct afd_softc *fdp = afdtab[lun];
|
|
int32_t x;
|
|
|
|
if (bp->b_bcount == 0) {
|
|
bp->b_resid = 0;
|
|
biodone(bp);
|
|
return;
|
|
}
|
|
if (dscheck(bp, fdp->slices) <= 0) {
|
|
x = splbio();
|
|
biodone(bp);
|
|
splx(x);
|
|
return;
|
|
}
|
|
x = splbio();
|
|
bufq_insert_tail(&fdp->buf_queue, bp);
|
|
afd_start(fdp);
|
|
splx(x);
|
|
}
|
|
|
|
static void
|
|
afd_strategy(struct buf *bp)
|
|
{
|
|
afdstrategy(bp);
|
|
}
|
|
|
|
static void
|
|
afd_start(struct afd_softc *fdp)
|
|
{
|
|
struct buf *bp = bufq_first(&fdp->buf_queue);
|
|
u_int32_t lba, count;
|
|
int8_t ccb[16];
|
|
|
|
if (!bp)
|
|
return;
|
|
bzero(ccb, sizeof(ccb));
|
|
bufq_remove(&fdp->buf_queue, bp);
|
|
|
|
/* Should reject all queued entries if media have changed. */
|
|
if (fdp->flags & F_MEDIA_CHANGED) {
|
|
bp->b_error = EIO;
|
|
bp->b_flags |= B_ERROR;
|
|
biodone(bp);
|
|
return;
|
|
}
|
|
|
|
lba = bp->b_blkno / (fdp->cap.sector_size / DEV_BSIZE);
|
|
count = (bp->b_bcount + (fdp->cap.sector_size - 1)) / fdp->cap.sector_size;
|
|
|
|
if (count > 64) /* only needed for ZIP drives SOS */
|
|
count = 64;
|
|
|
|
if (bp->b_flags & B_READ)
|
|
ccb[0] = ATAPI_READ_BIG;
|
|
else
|
|
ccb[0] = ATAPI_WRITE_BIG;
|
|
|
|
ccb[1] = 0;
|
|
ccb[2] = lba>>24;
|
|
ccb[3] = lba>>16;
|
|
ccb[4] = lba>>8;
|
|
ccb[5] = lba;
|
|
ccb[7] = count>>8;
|
|
ccb[8] = count;
|
|
|
|
devstat_start_transaction(&fdp->stats);
|
|
|
|
atapi_queue_cmd(fdp->atp, ccb, bp->b_data, count*fdp->cap.sector_size,
|
|
(bp->b_flags & B_READ) ? A_READ : 0, afd_done, fdp, bp);
|
|
}
|
|
|
|
static void
|
|
afd_done(struct atapi_request *request)
|
|
{
|
|
struct buf *bp = request->bp;
|
|
struct afd_softc *fdp = request->driver;
|
|
|
|
devstat_end_transaction(&fdp->stats, bp->b_bcount-request->bytecount,
|
|
DEVSTAT_TAG_NONE,
|
|
(bp->b_flags&B_READ) ? DEVSTAT_READ:DEVSTAT_WRITE);
|
|
|
|
if (request->result) {
|
|
printf("afd_done: ");
|
|
atapi_error(request->device, request->result);
|
|
bp->b_error = EIO;
|
|
bp->b_flags |= B_ERROR;
|
|
}
|
|
else
|
|
bp->b_resid = request->bytecount;
|
|
biodone(bp);
|
|
afd_start(fdp);
|
|
}
|
|
|
|
static int32_t
|
|
afd_start_device(struct afd_softc *fdp, int32_t start)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_START_STOP, 0, 0, 0, start,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
return atapi_queue_cmd(fdp->atp, ccb, NULL, 0, 0, NULL, NULL, NULL);
|
|
}
|
|
|
|
static int32_t
|
|
afd_lock_device(struct afd_softc *fdp, int32_t lock)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_PREVENT_ALLOW, 0, 0, 0, lock,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
return atapi_queue_cmd(fdp->atp, ccb, NULL, 0, 0, NULL, NULL, NULL);
|
|
}
|
|
|
|
static int32_t
|
|
afd_eject(struct afd_softc *fdp, int32_t close)
|
|
{
|
|
int32_t error;
|
|
|
|
error = afd_start_device(fdp, 0);
|
|
if ((error & ATAPI_SK_MASK) &&
|
|
((error & ATAPI_SK_MASK) == ATAPI_SK_NOT_READY ||
|
|
(error & ATAPI_SK_MASK) == ATAPI_SK_UNIT_ATTENTION)) {
|
|
|
|
if (!close)
|
|
return 0;
|
|
if ((error = afd_start_device(fdp, 3)))
|
|
return error;
|
|
afd_lock_device(fdp, 1);
|
|
return 0;
|
|
}
|
|
if (error) {
|
|
atapi_error(fdp->atp, error);
|
|
return EIO;
|
|
}
|
|
if (close)
|
|
return 0;
|
|
|
|
tsleep((caddr_t) &lbolt, PRIBIO, "afdej1", 0);
|
|
tsleep((caddr_t) &lbolt, PRIBIO, "afdej2", 0);
|
|
afd_lock_device(fdp, 0);
|
|
fdp->flags |= F_MEDIA_CHANGED;
|
|
return afd_start_device(fdp, 2);
|
|
}
|
|
|
|
|
|
static void
|
|
afd_drvinit(void *unused)
|
|
{
|
|
static afd_devsw_installed = 0;
|
|
|
|
if (!afd_devsw_installed) {
|
|
cdevsw_add_generic(BDEV_MAJOR, CDEV_MAJOR, &afd_cdevsw);
|
|
afd_devsw_installed = 1;
|
|
}
|
|
}
|
|
|
|
SYSINIT(afddev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, afd_drvinit, NULL)
|
|
#endif /* NATA & NATAPIFD */
|