448 lines
12 KiB
C
448 lines
12 KiB
C
/*-
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* Copyright (c) 1998 - 2007 Søren Schmidt <sos@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ata.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/bio.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/endian.h>
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#include <sys/cdio.h>
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#include <sys/sema.h>
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#include <sys/taskqueue.h>
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#include <vm/uma.h>
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#include <machine/bus.h>
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#include <geom/geom_disk.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ata/atapi-fd.h>
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#include <ata_if.h>
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/* prototypes */
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static disk_open_t afd_open;
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static disk_close_t afd_close;
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static disk_strategy_t afd_strategy;
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static disk_ioctl_t afd_ioctl;
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static int afd_sense(device_t);
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static void afd_describe(device_t);
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static void afd_done(struct ata_request *);
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static int afd_prevent_allow(device_t, int);
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static int afd_test_ready(device_t);
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/* internal vars */
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static MALLOC_DEFINE(M_AFD, "afd_driver", "ATAPI floppy driver buffers");
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static int
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afd_probe(device_t dev)
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{
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struct ata_device *atadev = device_get_softc(dev);
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if ((atadev->param.config & ATA_PROTO_ATAPI) &&
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(atadev->param.config & ATA_ATAPI_TYPE_MASK) == ATA_ATAPI_TYPE_DIRECT)
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return 0;
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else
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return ENXIO;
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}
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static int
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afd_attach(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(device_get_parent(dev));
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struct ata_device *atadev = device_get_softc(dev);
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struct afd_softc *fdp;
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if (!(fdp = malloc(sizeof(struct afd_softc), M_AFD, M_NOWAIT | M_ZERO))) {
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device_printf(dev, "out of memory\n");
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return ENOMEM;
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}
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device_set_ivars(dev, fdp);
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ATA_SETMODE(device_get_parent(dev), dev);
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if (afd_sense(dev)) {
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device_set_ivars(dev, NULL);
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free(fdp, M_AFD);
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return ENXIO;
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}
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atadev->flags |= ATA_D_MEDIA_CHANGED;
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/* announce we are here */
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afd_describe(dev);
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/* create the disk device */
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fdp->disk = disk_alloc();
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fdp->disk->d_open = afd_open;
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fdp->disk->d_close = afd_close;
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fdp->disk->d_strategy = afd_strategy;
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fdp->disk->d_ioctl = afd_ioctl;
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fdp->disk->d_name = "afd";
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fdp->disk->d_drv1 = dev;
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if (ch->dma)
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fdp->disk->d_maxsize = ch->dma->max_iosize;
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else
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fdp->disk->d_maxsize = DFLTPHYS;
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fdp->disk->d_unit = device_get_unit(dev);
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disk_create(fdp->disk, DISK_VERSION);
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return 0;
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}
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static int
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afd_detach(device_t dev)
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{
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struct afd_softc *fdp = device_get_ivars(dev);
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/* check that we have a valid device to detach */
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if (!device_get_ivars(dev))
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return ENXIO;
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/* detroy disk from the system so we dont get any further requests */
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disk_destroy(fdp->disk);
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/* fail requests on the queue and any thats "in flight" for this device */
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ata_fail_requests(dev);
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/* dont leave anything behind */
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device_set_ivars(dev, NULL);
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free(fdp, M_AFD);
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return 0;
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}
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static void
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afd_shutdown(device_t dev)
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{
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struct ata_device *atadev = device_get_softc(dev);
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if (atadev->param.support.command2 & ATA_SUPPORT_FLUSHCACHE)
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ata_controlcmd(dev, ATA_FLUSHCACHE, 0, 0, 0);
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}
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static int
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afd_reinit(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(device_get_parent(dev));
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struct ata_device *atadev = device_get_softc(dev);
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struct afd_softc *fdp = device_get_ivars(dev);
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if (((atadev->unit == ATA_MASTER) && !(ch->devices & ATA_ATAPI_MASTER)) ||
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((atadev->unit == ATA_SLAVE) && !(ch->devices & ATA_ATAPI_SLAVE))) {
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device_set_ivars(dev, NULL);
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free(fdp, M_AFD);
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return 1;
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}
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ATA_SETMODE(device_get_parent(dev), dev);
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return 0;
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}
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static int
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afd_open(struct disk *dp)
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{
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device_t dev = dp->d_drv1;
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struct ata_device *atadev = device_get_softc(dev);
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struct afd_softc *fdp = device_get_ivars(dev);
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if (!fdp)
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return ENXIO;
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if (!device_is_attached(dev))
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return EBUSY;
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afd_test_ready(dev);
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afd_prevent_allow(dev, 1);
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if (afd_sense(dev))
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device_printf(dev, "sense media type failed\n");
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atadev->flags &= ~ATA_D_MEDIA_CHANGED;
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if (!fdp->mediasize)
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return ENXIO;
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fdp->disk->d_sectorsize = fdp->sectorsize;
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fdp->disk->d_mediasize = fdp->mediasize;
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fdp->disk->d_fwsectors = fdp->sectors;
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fdp->disk->d_fwheads = fdp->heads;
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return 0;
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}
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static int
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afd_close(struct disk *dp)
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{
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device_t dev = dp->d_drv1;
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afd_prevent_allow(dev, 0);
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return 0;
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}
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static void
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afd_strategy(struct bio *bp)
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{
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device_t dev = bp->bio_disk->d_drv1;
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struct ata_device *atadev = device_get_softc(dev);
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struct afd_softc *fdp = device_get_ivars(dev);
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struct ata_request *request;
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u_int16_t count;
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int8_t ccb[16];
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/* if it's a null transfer, return immediatly. */
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if (bp->bio_bcount == 0) {
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bp->bio_resid = 0;
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biodone(bp);
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return;
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}
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/* should reject all queued entries if media have changed. */
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if (atadev->flags & ATA_D_MEDIA_CHANGED) {
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biofinish(bp, NULL, EIO);
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return;
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}
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count = bp->bio_bcount / fdp->sectorsize;
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bp->bio_resid = bp->bio_bcount;
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bzero(ccb, sizeof(ccb));
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if (bp->bio_cmd == BIO_READ)
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ccb[0] = ATAPI_READ_BIG;
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else
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ccb[0] = ATAPI_WRITE_BIG;
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ccb[2] = bp->bio_pblkno >> 24;
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ccb[3] = bp->bio_pblkno >> 16;
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ccb[4] = bp->bio_pblkno >> 8;
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ccb[5] = bp->bio_pblkno;
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ccb[7] = count>>8;
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ccb[8] = count;
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if (!(request = ata_alloc_request())) {
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biofinish(bp, NULL, ENOMEM);
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return;
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}
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request->dev = dev;
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request->bio = bp;
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bcopy(ccb, request->u.atapi.ccb,
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(atadev->param.config & ATA_PROTO_MASK) ==
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ATA_PROTO_ATAPI_12 ? 16 : 12);
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request->data = bp->bio_data;
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request->bytecount = count * fdp->sectorsize;
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request->transfersize = min(request->bytecount, 65534);
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request->timeout = (ccb[0] == ATAPI_WRITE_BIG) ? 60 : 30;
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request->retries = 2;
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request->callback = afd_done;
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switch (bp->bio_cmd) {
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case BIO_READ:
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request->flags = (ATA_R_ATAPI | ATA_R_READ);
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break;
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case BIO_WRITE:
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request->flags = (ATA_R_ATAPI | ATA_R_WRITE);
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break;
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default:
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device_printf(dev, "unknown BIO operation\n");
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ata_free_request(request);
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biofinish(bp, NULL, EIO);
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return;
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}
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if (atadev->mode >= ATA_DMA)
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request->flags |= ATA_R_DMA;
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request->flags |= ATA_R_ORDERED;
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ata_queue_request(request);
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}
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static void
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afd_done(struct ata_request *request)
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{
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struct bio *bp = request->bio;
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/* finish up transfer */
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if ((bp->bio_error = request->result))
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bp->bio_flags |= BIO_ERROR;
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bp->bio_resid = bp->bio_bcount - request->donecount;
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biodone(bp);
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ata_free_request(request);
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}
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static int
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afd_ioctl(struct disk *disk, u_long cmd, void *data, int flag,struct thread *td)
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{
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return ata_device_ioctl(disk->d_drv1, cmd, data);
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}
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static int
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afd_sense(device_t dev)
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{
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struct ata_device *atadev = device_get_softc(dev);
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struct afd_softc *fdp = device_get_ivars(dev);
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struct afd_capacity capacity;
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struct afd_capacity_big capacity_big;
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struct afd_capabilities capabilities;
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int8_t ccb1[16] = { ATAPI_READ_CAPACITY, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0 };
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int8_t ccb2[16] = { ATAPI_SERVICE_ACTION_IN, 0x10, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, sizeof(struct afd_capacity_big) & 0xff, 0, 0 };
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int8_t ccb3[16] = { ATAPI_MODE_SENSE_BIG, 0, ATAPI_REWRITEABLE_CAP_PAGE,
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0, 0, 0, 0, sizeof(struct afd_capabilities) >> 8,
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sizeof(struct afd_capabilities) & 0xff,
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0, 0, 0, 0, 0, 0, 0 };
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int timeout = 20;
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int error, count;
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fdp->mediasize = 0;
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/* wait for device to get ready */
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while ((error = afd_test_ready(dev)) && timeout--) {
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DELAY(100000);
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}
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if (error == EBUSY)
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return 1;
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/* The IOMEGA Clik! doesn't support reading the cap page, fake it */
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if (!strncmp(atadev->param.model, "IOMEGA Clik!", 12)) {
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fdp->heads = 1;
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fdp->sectors = 2;
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fdp->mediasize = 39441 * 1024;
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fdp->sectorsize = 512;
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afd_test_ready(dev);
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return 0;
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}
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/* get drive capacity */
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if (!ata_atapicmd(dev, ccb1, (caddr_t)&capacity,
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sizeof(struct afd_capacity), ATA_R_READ, 30)) {
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fdp->heads = 16;
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fdp->sectors = 63;
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fdp->sectorsize = be32toh(capacity.blocksize);
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fdp->mediasize = (u_int64_t)be32toh(capacity.capacity)*fdp->sectorsize;
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afd_test_ready(dev);
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return 0;
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}
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/* get drive capacity big */
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if (!ata_atapicmd(dev, ccb2, (caddr_t)&capacity_big,
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sizeof(struct afd_capacity_big),
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ATA_R_READ | ATA_R_QUIET, 30)) {
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fdp->heads = 16;
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fdp->sectors = 63;
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fdp->sectorsize = be32toh(capacity_big.blocksize);
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fdp->mediasize = be64toh(capacity_big.capacity)*fdp->sectorsize;
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afd_test_ready(dev);
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return 0;
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}
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/* get drive capabilities, some bugridden drives needs this repeated */
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for (count = 0 ; count < 5 ; count++) {
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if (!ata_atapicmd(dev, ccb3, (caddr_t)&capabilities,
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sizeof(struct afd_capabilities), ATA_R_READ, 30) &&
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capabilities.page_code == ATAPI_REWRITEABLE_CAP_PAGE) {
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fdp->heads = capabilities.heads;
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fdp->sectors = capabilities.sectors;
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fdp->sectorsize = be16toh(capabilities.sector_size);
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fdp->mediasize = be16toh(capabilities.cylinders) *
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fdp->heads * fdp->sectors * fdp->sectorsize;
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if (!capabilities.medium_type)
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fdp->mediasize = 0;
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return 0;
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}
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}
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return 1;
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}
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static int
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afd_prevent_allow(device_t dev, int lock)
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{
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struct ata_device *atadev = device_get_softc(dev);
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int8_t ccb[16] = { ATAPI_PREVENT_ALLOW, 0, 0, 0, lock,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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if (!strncmp(atadev->param.model, "IOMEGA Clik!", 12))
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return 0;
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return ata_atapicmd(dev, ccb, NULL, 0, 0, 30);
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}
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static int
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afd_test_ready(device_t dev)
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{
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int8_t ccb[16] = { ATAPI_TEST_UNIT_READY, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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return ata_atapicmd(dev, ccb, NULL, 0, 0, 30);
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}
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static void
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afd_describe(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(device_get_parent(dev));
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struct ata_device *atadev = device_get_softc(dev);
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struct afd_softc *fdp = device_get_ivars(dev);
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char sizestring[16];
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if (fdp->mediasize > 1048576 * 5)
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sprintf(sizestring, "%juMB", fdp->mediasize / 1048576);
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else if (fdp->mediasize)
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sprintf(sizestring, "%juKB", fdp->mediasize / 1024);
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else
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strcpy(sizestring, "(no media)");
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device_printf(dev, "%s <%.40s %.8s> at ata%d-%s %s\n",
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sizestring, atadev->param.model, atadev->param.revision,
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device_get_unit(ch->dev),
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(atadev->unit == ATA_MASTER) ? "master" : "slave",
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ata_mode2str(atadev->mode));
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if (bootverbose) {
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device_printf(dev, "%ju sectors [%juC/%dH/%dS]\n",
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fdp->mediasize / fdp->sectorsize,
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fdp->mediasize /(fdp->sectorsize*fdp->sectors*fdp->heads),
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fdp->heads, fdp->sectors);
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}
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}
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static device_method_t afd_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, afd_probe),
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DEVMETHOD(device_attach, afd_attach),
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DEVMETHOD(device_detach, afd_detach),
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DEVMETHOD(device_shutdown, afd_shutdown),
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/* ATA methods */
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DEVMETHOD(ata_reinit, afd_reinit),
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{ 0, 0 }
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};
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static driver_t afd_driver = {
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"afd",
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afd_methods,
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0,
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};
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static devclass_t afd_devclass;
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DRIVER_MODULE(afd, ata, afd_driver, afd_devclass, NULL, NULL);
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MODULE_VERSION(afd, 1);
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MODULE_DEPEND(afd, ata, 1, 1, 1);
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