a2dca80a1d
see atacontrol(8) for more. Also the ATA_ENABLE_ATAPI_DMA, ATA_ENABLE_WC and ATA_ENABLE_TAGS options are gone, use the tuneables listed in ata.4 instead from the loader (this makes it possible to switch off DMA before the driver has to touch the devices on broken hardware).
466 lines
13 KiB
C
466 lines
13 KiB
C
/*-
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* Copyright (c) 1998,1999,2000,2001 Søren Schmidt
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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* $FreeBSD$
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*/
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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/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/disk.h>
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#include <sys/devicestat.h>
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#include <sys/cdio.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ata/atapi-all.h>
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#include <dev/ata/atapi-fd.h>
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/* device structures */
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static d_open_t afdopen;
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static d_close_t afdclose;
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static d_ioctl_t afdioctl;
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static d_strategy_t afdstrategy;
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static struct cdevsw afd_cdevsw = {
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/* open */ afdopen,
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/* close */ afdclose,
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/* read */ physread,
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/* write */ physwrite,
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/* ioctl */ afdioctl,
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/* poll */ nopoll,
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/* mmap */ nommap,
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/* strategy */ afdstrategy,
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/* name */ "afd",
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/* maj */ 118,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ D_DISK | D_TRACKCLOSE,
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/* bmaj */ 32
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};
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static struct cdevsw afddisk_cdevsw;
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/* prototypes */
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static int afd_sense(struct afd_softc *);
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static void afd_describe(struct afd_softc *);
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static int afd_partial_done(struct atapi_request *);
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static int afd_done(struct atapi_request *);
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static int afd_eject(struct afd_softc *, int);
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static int afd_start_stop(struct afd_softc *, int);
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static int afd_prevent_allow(struct afd_softc *, int);
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/* internal vars */
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static u_int32_t afd_lun_map = 0;
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static MALLOC_DEFINE(M_AFD, "AFD driver", "ATAPI floppy driver buffers");
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int
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afdattach(struct atapi_softc *atp)
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{
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struct afd_softc *fdp;
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dev_t dev;
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char name[16];
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fdp = malloc(sizeof(struct afd_softc), M_AFD, M_NOWAIT | M_ZERO);
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if (!fdp) {
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ata_printf(atp->controller, atp->unit, "out of memory\n");
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return -1;
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}
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bioq_init(&fdp->queue);
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fdp->atp = atp;
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fdp->lun = ata_get_lun(&afd_lun_map);
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if (afd_sense(fdp)) {
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free(fdp, M_AFD);
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return -1;
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}
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if (!strncmp(ATA_PARAM(fdp->atp->controller, fdp->atp->unit)->model,
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"IOMEGA ZIP", 10))
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fdp->transfersize = 64;
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devstat_add_entry(&fdp->stats, "afd", fdp->lun, DEV_BSIZE,
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DEVSTAT_NO_ORDERED_TAGS,
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DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_IDE,
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DEVSTAT_PRIORITY_WFD);
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dev = disk_create(fdp->lun, &fdp->disk, 0, &afd_cdevsw, &afddisk_cdevsw);
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dev->si_drv1 = fdp;
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dev->si_iosize_max = 252 * DEV_BSIZE;
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fdp->dev = dev;
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fdp->atp->flags |= ATAPI_F_MEDIA_CHANGED;
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fdp->atp->driver = fdp;
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sprintf(name, "afd%d", fdp->lun);
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ata_set_name(atp->controller, atp->unit, name);
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afd_describe(fdp);
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return 0;
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}
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void
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afddetach(struct atapi_softc *atp)
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{
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struct afd_softc *fdp = atp->driver;
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struct bio *bp;
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while ((bp = bioq_first(&fdp->queue))) {
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bp->bio_error = ENXIO;
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bp->bio_flags |= BIO_ERROR;
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biodone(bp);
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}
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disk_invalidate(&fdp->disk);
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disk_destroy(fdp->dev);
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devstat_remove_entry(&fdp->stats);
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ata_free_name(atp->controller, atp->unit);
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ata_free_lun(&afd_lun_map, fdp->lun);
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free(fdp, M_AFD);
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}
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static int
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afd_sense(struct afd_softc *fdp)
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{
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int8_t buffer[256];
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int8_t ccb[16] = { ATAPI_MODE_SENSE_BIG, 0, ATAPI_REWRITEABLE_CAP_PAGE,
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0, 0, 0, 0, sizeof(buffer)>>8, sizeof(buffer) & 0xff,
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0, 0, 0, 0, 0, 0, 0 };
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int count, error = 0;
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/* The IOMEGA Clik! doesn't support reading the cap page, fake it */
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if (!strncmp(ATA_PARAM(fdp->atp->controller, fdp->atp->unit)->model,
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"IOMEGA Clik!", 12)) {
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fdp->transfersize = 64;
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fdp->cap.transfer_rate = 500;
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fdp->cap.heads = 1;
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fdp->cap.sectors = 2;
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fdp->cap.cylinders = 39441;
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fdp->cap.sector_size = 512;
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atapi_test_ready(fdp->atp);
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return 0;
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}
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bzero(buffer, sizeof(buffer));
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/* get drive capabilities, some drives needs this repeated */
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for (count = 0 ; count < 5 ; count++) {
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if (!(error = atapi_queue_cmd(fdp->atp, ccb, buffer, sizeof(buffer),
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ATPR_F_READ, 30, NULL, NULL)))
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break;
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}
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if (error)
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return error;
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bcopy(buffer, &fdp->header, sizeof(struct afd_header));
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bcopy(buffer + sizeof(struct afd_header), &fdp->cap,
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sizeof(struct afd_cappage));
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if (fdp->cap.page_code != ATAPI_REWRITEABLE_CAP_PAGE)
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return 1;
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fdp->cap.cylinders = ntohs(fdp->cap.cylinders);
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fdp->cap.sector_size = ntohs(fdp->cap.sector_size);
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fdp->cap.transfer_rate = ntohs(fdp->cap.transfer_rate);
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return 0;
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}
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static void
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afd_describe(struct afd_softc *fdp)
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{
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if (bootverbose) {
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ata_printf(fdp->atp->controller, fdp->atp->unit,
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"<%.40s/%.8s> rewriteable drive at ata%d as %s\n",
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ATA_PARAM(fdp->atp->controller, fdp->atp->unit)->model,
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ATA_PARAM(fdp->atp->controller, fdp->atp->unit)->revision,
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device_get_unit(fdp->atp->controller->dev),
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(fdp->atp->unit == ATA_MASTER) ? "master" : "slave");
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ata_printf(fdp->atp->controller, fdp->atp->unit,
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"%luMB (%u sectors), %u cyls, %u heads, %u S/T, %u B/S\n",
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(fdp->cap.cylinders * fdp->cap.heads * fdp->cap.sectors) /
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((1024L * 1024L) / fdp->cap.sector_size),
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fdp->cap.cylinders * fdp->cap.heads * fdp->cap.sectors,
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fdp->cap.cylinders, fdp->cap.heads, fdp->cap.sectors,
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fdp->cap.sector_size);
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ata_printf(fdp->atp->controller, fdp->atp->unit, "%dKB/s,",
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fdp->lun, fdp->cap.transfer_rate/8);
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if (fdp->transfersize)
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printf(" transfer limit %d blks,", fdp->transfersize);
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printf(" %s\n", ata_mode2str(fdp->atp->controller->mode[
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ATA_DEV(fdp->atp->unit)]));
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if (fdp->header.medium_type) {
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ata_printf(fdp->atp->controller, fdp->atp->unit, "Medium: ");
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switch (fdp->header.medium_type) {
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case MFD_2DD:
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printf("720KB DD disk"); break;
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case MFD_HD_12:
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printf("1.2MB HD disk"); break;
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case MFD_HD_144:
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printf("1.44MB HD disk"); break;
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case MFD_UHD:
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printf("120MB UHD disk"); break;
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default:
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printf("Unknown (0x%x)", fdp->header.medium_type);
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}
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if (fdp->header.wp) printf(", writeprotected");
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}
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printf("\n");
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}
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else {
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ata_printf(fdp->atp->controller, fdp->atp->unit,
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"%luMB <%.40s> [%d/%d/%d] at ata%d-%s %s\n",
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(fdp->cap.cylinders*fdp->cap.heads*fdp->cap.sectors) /
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((1024L * 1024L) / fdp->cap.sector_size),
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ATA_PARAM(fdp->atp->controller, fdp->atp->unit)->model,
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fdp->cap.cylinders, fdp->cap.heads, fdp->cap.sectors,
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device_get_unit(fdp->atp->controller->dev),
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(fdp->atp->unit == ATA_MASTER) ? "master" : "slave",
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ata_mode2str(fdp->atp->controller->
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mode[ATA_DEV(fdp->atp->unit)]));
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}
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}
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static int
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afdopen(dev_t dev, int flags, int fmt, struct proc *p)
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{
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struct afd_softc *fdp = dev->si_drv1;
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struct disklabel *label = &fdp->disk.d_label;
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atapi_test_ready(fdp->atp);
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if (count_dev(dev) == 1)
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afd_prevent_allow(fdp, 1);
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if (afd_sense(fdp))
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ata_printf(fdp->atp->controller, fdp->atp->unit,
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"sense media type failed\n");
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fdp->atp->flags &= ~ATAPI_F_MEDIA_CHANGED;
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bzero(label, sizeof *label);
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label->d_secsize = fdp->cap.sector_size;
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label->d_nsectors = fdp->cap.sectors;
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label->d_ntracks = fdp->cap.heads;
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label->d_ncylinders = fdp->cap.cylinders;
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label->d_secpercyl = fdp->cap.sectors * fdp->cap.heads;
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label->d_secperunit = label->d_secpercyl * fdp->cap.cylinders;
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return 0;
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}
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static int
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afdclose(dev_t dev, int flags, int fmt, struct proc *p)
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{
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struct afd_softc *fdp = dev->si_drv1;
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if (count_dev(dev) == 1)
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afd_prevent_allow(fdp, 0);
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return 0;
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}
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static int
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afdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
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{
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struct afd_softc *fdp = dev->si_drv1;
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switch (cmd) {
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case CDIOCEJECT:
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if (count_dev(dev) > 1)
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return EBUSY;
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return afd_eject(fdp, 0);
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case CDIOCCLOSE:
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if (count_dev(dev) > 1)
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return 0;
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return afd_eject(fdp, 1);
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default:
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return ENOIOCTL;
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}
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}
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static void
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afdstrategy(struct bio *bp)
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{
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struct afd_softc *fdp = bp->bio_dev->si_drv1;
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int s;
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if (fdp->atp->flags & ATAPI_F_DETACHING) {
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bp->bio_error = ENXIO;
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bp->bio_flags |= BIO_ERROR;
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biodone(bp);
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return;
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}
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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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s = splbio();
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bioqdisksort(&fdp->queue, bp);
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ata_start(fdp->atp->controller);
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splx(s);
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}
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void
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afd_start(struct atapi_softc *atp)
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{
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struct afd_softc *fdp = atp->driver;
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struct bio *bp = bioq_first(&fdp->queue);
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u_int32_t lba;
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u_int16_t count;
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int8_t ccb[16];
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caddr_t data_ptr;
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if (!bp)
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return;
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bioq_remove(&fdp->queue, bp);
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/* should reject all queued entries if media have changed. */
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if (fdp->atp->flags & ATAPI_F_MEDIA_CHANGED) {
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bp->bio_error = EIO;
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bp->bio_flags |= BIO_ERROR;
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biodone(bp);
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return;
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}
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lba = bp->bio_pblkno;
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count = bp->bio_bcount / fdp->cap.sector_size;
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data_ptr = bp->bio_data;
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bp->bio_resid = 0;
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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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devstat_start_transaction(&fdp->stats);
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while (fdp->transfersize && (count > fdp->transfersize)) {
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ccb[2] = lba>>24;
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ccb[3] = lba>>16;
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ccb[4] = lba>>8;
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ccb[5] = lba;
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ccb[7] = fdp->transfersize>>8;
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ccb[8] = fdp->transfersize;
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atapi_queue_cmd(fdp->atp, ccb, data_ptr,
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fdp->transfersize * fdp->cap.sector_size,
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(bp->bio_cmd == BIO_READ) ? ATPR_F_READ : 0, 30,
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afd_partial_done, bp);
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count -= fdp->transfersize;
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lba += fdp->transfersize;
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data_ptr += fdp->transfersize * fdp->cap.sector_size;
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}
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ccb[2] = lba>>24;
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ccb[3] = lba>>16;
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ccb[4] = lba>>8;
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ccb[5] = lba;
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ccb[7] = count>>8;
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ccb[8] = count;
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atapi_queue_cmd(fdp->atp, ccb, data_ptr, count * fdp->cap.sector_size,
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(bp->bio_cmd == BIO_READ) ? ATPR_F_READ : 0, 30,
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afd_done, bp);
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}
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static int
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afd_partial_done(struct atapi_request *request)
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{
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struct bio *bp = request->driver;
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if (request->error) {
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bp->bio_error = request->error;
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bp->bio_flags |= BIO_ERROR;
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}
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bp->bio_resid += request->bytecount;
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return 0;
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}
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static int
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afd_done(struct atapi_request *request)
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{
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struct bio *bp = request->driver;
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struct afd_softc *fdp = request->device->driver;
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if (request->error || (bp->bio_flags & BIO_ERROR)) {
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bp->bio_error = request->error;
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bp->bio_flags |= BIO_ERROR;
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}
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else
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bp->bio_resid += (bp->bio_bcount - request->donecount);
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devstat_end_transaction_bio(&fdp->stats, bp);
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biodone(bp);
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return 0;
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}
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static int
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afd_eject(struct afd_softc *fdp, int close)
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{
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int error;
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if ((error = afd_start_stop(fdp, 0)) == EBUSY) {
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if (!close)
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return 0;
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if ((error = afd_start_stop(fdp, 3)))
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return error;
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return afd_prevent_allow(fdp, 1);
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}
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if (error)
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return error;
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if (close)
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return 0;
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if ((error = afd_prevent_allow(fdp, 0)))
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return error;
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fdp->atp->flags |= ATAPI_F_MEDIA_CHANGED;
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return afd_start_stop(fdp, 2);
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}
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static int
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afd_start_stop(struct afd_softc *fdp, int start)
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{
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int8_t ccb[16] = { ATAPI_START_STOP, 0, 0, 0, start,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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return atapi_queue_cmd(fdp->atp, ccb, NULL, 0, 0, 30, NULL, NULL);
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}
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static int
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afd_prevent_allow(struct afd_softc *fdp, int lock)
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{
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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(ATA_PARAM(fdp->atp->controller, fdp->atp->unit)->model,
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"IOMEGA Clik!", 12))
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return 0;
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return atapi_queue_cmd(fdp->atp, ccb, NULL, 0, 0, 30, NULL, NULL);
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}
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