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9f06a4277f
Cosmetics.
734 lines
20 KiB
C
734 lines
20 KiB
C
/*-
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* Copyright (c) 1998 - 2003 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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* 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ata.h"
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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/conf.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/mtio.h>
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#include <sys/devicestat.h>
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#include <sys/taskqueue.h>
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#include <machine/bus.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ata/atapi-tape.h>
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/* device structures */
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static d_open_t ast_open;
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static d_close_t ast_close;
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static d_ioctl_t ast_ioctl;
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static d_strategy_t ast_strategy;
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static struct cdevsw ast_cdevsw = {
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.d_open = ast_open,
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.d_close = ast_close,
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.d_read = physread,
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.d_write = physwrite,
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.d_ioctl = ast_ioctl,
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.d_strategy = ast_strategy,
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.d_name = "ast",
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.d_maj = 119,
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.d_flags = D_TAPE | D_TRACKCLOSE | D_NOGIANT,
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};
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/* prototypes */
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static void ast_detach(struct ata_device *);
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static void ast_start(struct ata_device *);
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static int ast_sense(struct ast_softc *);
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static void ast_describe(struct ast_softc *);
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static void ast_done(struct ata_request *);
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static int ast_mode_sense(struct ast_softc *, int, void *, int);
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static int ast_mode_select(struct ast_softc *, void *, int);
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static int ast_write_filemark(struct ast_softc *, u_int8_t);
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static int ast_read_position(struct ast_softc *, int, struct ast_readposition *);
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static int ast_space(struct ast_softc *, u_int8_t, int32_t);
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static int ast_locate(struct ast_softc *, int, u_int32_t);
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static int ast_prevent_allow(struct ast_softc *stp, int);
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static int ast_load_unload(struct ast_softc *, u_int8_t);
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static int ast_rewind(struct ast_softc *);
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static int ast_erase(struct ast_softc *);
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static int ast_test_ready(struct ata_device *);
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static int ast_wait_dsc(struct ata_device *, int);
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/* internal vars */
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static u_int32_t ast_lun_map = 0;
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static u_int64_t ast_total = 0;
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static MALLOC_DEFINE(M_AST, "AST driver", "ATAPI tape driver buffers");
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void
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ast_attach(struct ata_device *atadev)
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{
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struct ast_softc *stp;
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struct ast_readposition position;
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dev_t dev;
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stp = malloc(sizeof(struct ast_softc), M_AST, M_NOWAIT | M_ZERO);
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if (!stp) {
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ata_prtdev(atadev, "out of memory\n");
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return;
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}
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stp->device = atadev;
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stp->lun = ata_get_lun(&ast_lun_map);
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ata_set_name(atadev, "ast", stp->lun);
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bioq_init(&stp->queue);
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mtx_init(&stp->queue_mtx, "ATAPI TAPE bioqueue lock", MTX_DEF, 0);
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if (ast_sense(stp)) {
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free(stp, M_AST);
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return;
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}
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if (!strcmp(atadev->param->model, "OnStream DI-30")) {
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struct ast_transferpage transfer;
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struct ast_identifypage identify;
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stp->flags |= F_ONSTREAM;
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bzero(&transfer, sizeof(struct ast_transferpage));
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ast_mode_sense(stp, ATAPI_TAPE_TRANSFER_PAGE,
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&transfer, sizeof(transfer));
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bzero(&identify, sizeof(struct ast_identifypage));
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ast_mode_sense(stp, ATAPI_TAPE_IDENTIFY_PAGE,
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&identify, sizeof(identify));
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strncpy(identify.ident, "FBSD", 4);
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ast_mode_select(stp, &identify, sizeof(identify));
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ast_read_position(stp, 0, &position);
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}
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stp->stats = devstat_new_entry("ast", stp->lun, DEV_BSIZE,
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DEVSTAT_NO_ORDERED_TAGS,
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DEVSTAT_TYPE_SEQUENTIAL | DEVSTAT_TYPE_IF_IDE,
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DEVSTAT_PRIORITY_TAPE);
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dev = make_dev(&ast_cdevsw, 2 * stp->lun,
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UID_ROOT, GID_OPERATOR, 0640, "ast%d", stp->lun);
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dev->si_drv1 = stp;
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if (atadev->channel->dma)
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dev->si_iosize_max = atadev->channel->dma->max_iosize;
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else
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dev->si_iosize_max = DFLTPHYS;
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stp->dev1 = dev;
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dev = make_dev(&ast_cdevsw, 2 * stp->lun + 1,
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UID_ROOT, GID_OPERATOR, 0640, "nast%d", stp->lun);
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dev->si_drv1 = stp;
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if (atadev->channel->dma)
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dev->si_iosize_max = atadev->channel->dma->max_iosize;
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else
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dev->si_iosize_max = DFLTPHYS;
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stp->dev2 = dev;
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/* use DMA if allowed and if drive/controller supports it */
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if (atapi_dma && atadev->channel->dma &&
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(atadev->param->config & ATA_DRQ_MASK) != ATA_DRQ_INTR)
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atadev->setmode(atadev, ATA_DMA_MAX);
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else
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atadev->setmode(atadev, ATA_PIO_MAX);
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/* setup the function ptrs */
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atadev->detach = ast_detach;
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atadev->start = ast_start;
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atadev->softc = stp;
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atadev->flags |= ATA_D_MEDIA_CHANGED;
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/* announce we are here */
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ast_describe(stp);
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}
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static void
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ast_detach(struct ata_device *atadev)
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{
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struct ast_softc *stp = atadev->softc;
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mtx_lock(&stp->queue_mtx);
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bioq_flush(&stp->queue, NULL, ENXIO);
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mtx_unlock(&stp->queue_mtx);
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destroy_dev(stp->dev1);
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destroy_dev(stp->dev2);
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devstat_remove_entry(stp->stats);
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ata_prtdev(atadev, "WARNING - removed from configuration\n");
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ata_free_name(atadev);
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ata_free_lun(&ast_lun_map, stp->lun);
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atadev->attach = NULL;
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atadev->detach = NULL;
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atadev->start = NULL;
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atadev->softc = NULL;
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atadev->flags = 0;
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free(stp, M_AST);
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}
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static int
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ast_sense(struct ast_softc *stp)
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{
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int count;
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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 (!ast_mode_sense(stp, ATAPI_TAPE_CAP_PAGE,
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&stp->cap, sizeof(stp->cap)) &&
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stp->cap.page_code == ATAPI_TAPE_CAP_PAGE) {
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if (stp->cap.blk32k)
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stp->blksize = 32768;
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if (stp->cap.blk1024)
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stp->blksize = 1024;
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if (stp->cap.blk512)
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stp->blksize = 512;
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if (!stp->blksize)
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continue;
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stp->cap.max_speed = ntohs(stp->cap.max_speed);
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stp->cap.max_defects = ntohs(stp->cap.max_defects);
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stp->cap.ctl = ntohs(stp->cap.ctl);
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stp->cap.speed = ntohs(stp->cap.speed);
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stp->cap.buffer_size = ntohs(stp->cap.buffer_size);
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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 void
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ast_describe(struct ast_softc *stp)
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{
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if (bootverbose) {
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ata_prtdev(stp->device, "<%.40s/%.8s> tape drive at ata%d as %s\n",
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stp->device->param->model, stp->device->param->revision,
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device_get_unit(stp->device->channel->dev),
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(stp->device->unit == ATA_MASTER) ? "master" : "slave");
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ata_prtdev(stp->device, "%dKB/s, ", stp->cap.max_speed);
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printf("transfer limit %d blk%s, ",
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stp->cap.ctl, (stp->cap.ctl > 1) ? "s" : "");
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printf("%dKB buffer, ", (stp->cap.buffer_size * DEV_BSIZE) / 1024);
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printf("%s\n", ata_mode2str(stp->device->mode));
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ata_prtdev(stp->device, "Medium: ");
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switch (stp->cap.medium_type) {
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case 0x00:
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printf("none"); break;
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case 0x17:
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printf("Travan 1 (400 Mbyte)"); break;
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case 0xb6:
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printf("Travan 4 (4 Gbyte)"); break;
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case 0xda:
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printf("OnStream ADR (15Gyte)"); break;
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default:
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printf("unknown (0x%x)", stp->cap.medium_type);
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}
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if (stp->cap.readonly) printf(", readonly");
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if (stp->cap.reverse) printf(", reverse");
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if (stp->cap.eformat) printf(", eformat");
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if (stp->cap.qfa) printf(", qfa");
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if (stp->cap.lock) printf(", lock");
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if (stp->cap.locked) printf(", locked");
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if (stp->cap.prevent) printf(", prevent");
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if (stp->cap.eject) printf(", eject");
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if (stp->cap.disconnect) printf(", disconnect");
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if (stp->cap.ecc) printf(", ecc");
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if (stp->cap.compress) printf(", compress");
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if (stp->cap.blk512) printf(", 512b");
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if (stp->cap.blk1024) printf(", 1024b");
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if (stp->cap.blk32k) printf(", 32kb");
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printf("\n");
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}
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else {
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ata_prtdev(stp->device, "TAPE <%.40s> at ata%d-%s %s\n",
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stp->device->param->model,
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device_get_unit(stp->device->channel->dev),
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(stp->device->unit == ATA_MASTER) ? "master" : "slave",
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ata_mode2str(stp->device->mode));
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}
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}
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static int
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ast_open(dev_t dev, int flags, int fmt, struct thread *td)
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{
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struct ast_softc *stp = dev->si_drv1;
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if (!stp || stp->device->flags & ATA_D_DETACHING)
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return ENXIO;
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if (count_dev(dev) > 1)
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return EBUSY;
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ast_test_ready(stp->device);
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if (stp->cap.lock)
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ast_prevent_allow(stp, 1);
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if (ast_sense(stp))
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ata_prtdev(stp->device, "sense media type failed\n");
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stp->device->flags &= ~ATA_D_MEDIA_CHANGED;
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stp->flags &= ~(F_DATA_WRITTEN | F_FM_WRITTEN);
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ast_total = 0;
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return 0;
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}
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static int
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ast_close(dev_t dev, int flags, int fmt, struct thread *td)
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{
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struct ast_softc *stp = dev->si_drv1;
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/* flush buffers, some drives fail here, they should report ctl = 0 */
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if (stp->cap.ctl && (stp->flags & F_DATA_WRITTEN))
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ast_write_filemark(stp, 0);
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/* write filemark if data written to tape */
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if (!(stp->flags & F_ONSTREAM) &&
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(stp->flags & (F_DATA_WRITTEN | F_FM_WRITTEN)) == F_DATA_WRITTEN)
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ast_write_filemark(stp, ATAPI_WF_WRITE);
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/* if minor is even rewind on close */
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if (!(minor(dev) & 0x01))
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ast_rewind(stp);
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if (stp->cap.lock && count_dev(dev) == 1)
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ast_prevent_allow(stp, 0);
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stp->flags &= ~F_CTL_WARN;
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#ifdef AST_DEBUG
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ata_prtdev(stp->device, "%ju total bytes transferred\n",
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(uintmax_t)ast_total);
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#endif
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return 0;
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}
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static int
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ast_ioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
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{
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struct ast_softc *stp = dev->si_drv1;
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int error = 0;
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switch (cmd) {
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case MTIOCGET:
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{
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struct mtget *g = (struct mtget *) addr;
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bzero(g, sizeof(struct mtget));
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g->mt_type = 7;
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g->mt_density = 1;
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g->mt_blksiz = stp->blksize;
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g->mt_comp = stp->cap.compress;
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g->mt_density0 = 0; g->mt_density1 = 0;
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g->mt_density2 = 0; g->mt_density3 = 0;
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g->mt_blksiz0 = 0; g->mt_blksiz1 = 0;
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g->mt_blksiz2 = 0; g->mt_blksiz3 = 0;
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g->mt_comp0 = 0; g->mt_comp1 = 0;
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g->mt_comp2 = 0; g->mt_comp3 = 0;
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}
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break;
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case MTIOCTOP:
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{
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int i;
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struct mtop *mt = (struct mtop *)addr;
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switch ((int16_t) (mt->mt_op)) {
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case MTWEOF:
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for (i=0; i < mt->mt_count && !error; i++)
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error = ast_write_filemark(stp, ATAPI_WF_WRITE);
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break;
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case MTFSF:
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if (mt->mt_count)
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error = ast_space(stp, ATAPI_SP_FM, mt->mt_count);
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break;
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case MTBSF:
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if (mt->mt_count)
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error = ast_space(stp, ATAPI_SP_FM, -(mt->mt_count));
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break;
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case MTREW:
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error = ast_rewind(stp);
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break;
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case MTOFFL:
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error = ast_load_unload(stp, ATAPI_SS_EJECT);
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break;
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case MTNOP:
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error = ast_write_filemark(stp, 0);
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break;
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case MTERASE:
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error = ast_erase(stp);
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break;
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case MTEOD:
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error = ast_space(stp, ATAPI_SP_EOD, 0);
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break;
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case MTRETENS:
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error = ast_load_unload(stp, ATAPI_SS_RETENSION|ATAPI_SS_LOAD);
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break;
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case MTFSR:
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case MTBSR:
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case MTCACHE:
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case MTNOCACHE:
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case MTSETBSIZ:
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case MTSETDNSTY:
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case MTCOMP:
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default:
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error = EINVAL;
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}
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}
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break;
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case MTIOCRDSPOS:
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{
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struct ast_readposition position;
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if ((error = ast_read_position(stp, 0, &position)))
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break;
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*(u_int32_t *)addr = position.tape;
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}
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break;
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case MTIOCRDHPOS:
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{
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struct ast_readposition position;
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if ((error = ast_read_position(stp, 1, &position)))
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break;
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*(u_int32_t *)addr = position.tape;
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}
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break;
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case MTIOCSLOCATE:
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error = ast_locate(stp, 0, *(u_int32_t *)addr);
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break;
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case MTIOCHLOCATE:
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error = ast_locate(stp, 1, *(u_int32_t *)addr);
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break;
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default:
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error = ENOTTY;
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}
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return error;
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}
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static void
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ast_strategy(struct bio *bp)
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{
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struct ast_softc *stp = bp->bio_dev->si_drv1;
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if (stp->device->flags & ATA_D_DETACHING) {
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biofinish(bp, NULL, ENXIO);
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return;
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}
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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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if (!(bp->bio_cmd == BIO_READ) && stp->flags & F_WRITEPROTECT) {
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biofinish(bp, NULL, EPERM);
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return;
|
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}
|
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|
|
/* check for != blocksize requests */
|
|
if (bp->bio_bcount % stp->blksize) {
|
|
ata_prtdev(stp->device, "transfers must be multiple of %d\n",
|
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stp->blksize);
|
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biofinish(bp, NULL, EIO);
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return;
|
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}
|
|
|
|
/* warn about transfers bigger than the device suggests */
|
|
if (bp->bio_bcount > stp->blksize * stp->cap.ctl) {
|
|
if ((stp->flags & F_CTL_WARN) == 0) {
|
|
ata_prtdev(stp->device, "WARNING: CTL exceeded %ld>%d\n",
|
|
bp->bio_bcount, stp->blksize * stp->cap.ctl);
|
|
stp->flags |= F_CTL_WARN;
|
|
}
|
|
}
|
|
|
|
mtx_lock(&stp->queue_mtx);
|
|
bioq_insert_tail(&stp->queue, bp);
|
|
mtx_unlock(&stp->queue_mtx);
|
|
ata_start(stp->device->channel);
|
|
}
|
|
|
|
static void
|
|
ast_start(struct ata_device *atadev)
|
|
{
|
|
struct ast_softc *stp = atadev->softc;
|
|
struct bio *bp;
|
|
struct ata_request *request;
|
|
u_int32_t blkcount;
|
|
int8_t ccb[16];
|
|
|
|
mtx_lock(&stp->queue_mtx);
|
|
bp = bioq_first(&stp->queue);
|
|
if (!bp) {
|
|
mtx_unlock(&stp->queue_mtx);
|
|
return;
|
|
}
|
|
bioq_remove(&stp->queue, bp);
|
|
mtx_unlock(&stp->queue_mtx);
|
|
|
|
bzero(ccb, sizeof(ccb));
|
|
|
|
if (bp->bio_cmd == BIO_READ)
|
|
ccb[0] = ATAPI_READ;
|
|
else
|
|
ccb[0] = ATAPI_WRITE;
|
|
|
|
blkcount = bp->bio_bcount / stp->blksize;
|
|
|
|
ccb[1] = 1;
|
|
ccb[2] = blkcount>>16;
|
|
ccb[3] = blkcount>>8;
|
|
ccb[4] = blkcount;
|
|
|
|
if (!(request = ata_alloc_request())) {
|
|
biofinish(bp, NULL, EIO);
|
|
return;
|
|
}
|
|
request->device = atadev;
|
|
request->driver = bp;
|
|
bcopy(ccb, request->u.atapi.ccb,
|
|
(request->device->param->config & ATA_PROTO_MASK) ==
|
|
ATA_PROTO_ATAPI_12 ? 16 : 12);
|
|
request->data = bp->bio_data;
|
|
request->bytecount = blkcount * stp->blksize;
|
|
request->transfersize = min(request->bytecount, 65534);
|
|
request->timeout = (ccb[0] == ATAPI_WRITE_BIG) ? 180 : 120;
|
|
request->retries = 2;
|
|
request->callback = ast_done;
|
|
switch (bp->bio_cmd) {
|
|
case BIO_READ:
|
|
request->flags |= (ATA_R_SKIPSTART | ATA_R_ATAPI | ATA_R_READ);
|
|
break;
|
|
case BIO_WRITE:
|
|
request->flags |= (ATA_R_SKIPSTART | ATA_R_ATAPI | ATA_R_WRITE);
|
|
break;
|
|
default:
|
|
ata_prtdev(atadev, "unknown BIO operation\n");
|
|
ata_free_request(request);
|
|
biofinish(bp, NULL, EIO);
|
|
return;
|
|
}
|
|
devstat_start_transaction_bio(stp->stats, bp);
|
|
ata_queue_request(request);
|
|
}
|
|
|
|
static void
|
|
ast_done(struct ata_request *request)
|
|
{
|
|
struct bio *bp = request->driver;
|
|
struct ast_softc *stp = request->device->softc;
|
|
|
|
/* finish up transfer */
|
|
if ((bp->bio_error = request->result))
|
|
bp->bio_flags |= BIO_ERROR;
|
|
if (bp->bio_cmd == BIO_WRITE)
|
|
stp->flags |= F_DATA_WRITTEN;
|
|
bp->bio_resid = bp->bio_bcount - request->donecount;
|
|
ast_total += (bp->bio_bcount - bp->bio_resid);
|
|
biofinish(bp, stp->stats, 0);
|
|
ata_free_request(request);
|
|
}
|
|
|
|
static int
|
|
ast_mode_sense(struct ast_softc *stp, int page, void *pagebuf, int pagesize)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_MODE_SENSE, 0x08, page, pagesize>>8, pagesize,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int error;
|
|
|
|
error = ata_atapicmd(stp->device, ccb, pagebuf, pagesize, ATA_R_READ, 10);
|
|
#ifdef AST_DEBUG
|
|
atapi_dump("ast: mode sense ", pagebuf, pagesize);
|
|
#endif
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
ast_mode_select(struct ast_softc *stp, void *pagebuf, int pagesize)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_MODE_SELECT, 0x10, 0, pagesize>>8, pagesize,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
#ifdef AST_DEBUG
|
|
ata_prtdev(stp->device, "modeselect pagesize=%d\n", pagesize);
|
|
atapi_dump("mode select ", pagebuf, pagesize);
|
|
#endif
|
|
return ata_atapicmd(stp->device, ccb, pagebuf, pagesize, 0, 10);
|
|
}
|
|
|
|
static int
|
|
ast_write_filemark(struct ast_softc *stp, u_int8_t function)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_WEOF, 0x01, 0, 0, function, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int error;
|
|
|
|
if (stp->flags & F_ONSTREAM)
|
|
ccb[4] = 0x00; /* only flush buffers supported */
|
|
else {
|
|
if (function) {
|
|
if (stp->flags & F_FM_WRITTEN)
|
|
stp->flags &= ~F_DATA_WRITTEN;
|
|
else
|
|
stp->flags |= F_FM_WRITTEN;
|
|
}
|
|
}
|
|
error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10);
|
|
if (error)
|
|
return error;
|
|
return ast_wait_dsc(stp->device, 10*60);
|
|
}
|
|
|
|
static int
|
|
ast_read_position(struct ast_softc *stp, int hard,
|
|
struct ast_readposition *position)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_READ_POSITION, (hard ? 0x01 : 0), 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int error;
|
|
|
|
error = ata_atapicmd(stp->device, ccb, (caddr_t)position,
|
|
sizeof(struct ast_readposition), ATA_R_READ, 10);
|
|
position->tape = ntohl(position->tape);
|
|
position->host = ntohl(position->host);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
ast_space(struct ast_softc *stp, u_int8_t function, int32_t count)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_SPACE, function, count>>16, count>>8, count,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
return ata_atapicmd(stp->device, ccb, NULL, 0, 0, 60*60);
|
|
}
|
|
|
|
static int
|
|
ast_locate(struct ast_softc *stp, int hard, u_int32_t pos)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_LOCATE, 0x01 | (hard ? 0x4 : 0), 0,
|
|
pos>>24, pos>>16, pos>>8, pos,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int error;
|
|
|
|
error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10);
|
|
if (error)
|
|
return error;
|
|
return ast_wait_dsc(stp->device, 60*60);
|
|
}
|
|
|
|
static int
|
|
ast_prevent_allow(struct ast_softc *stp, int lock)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_PREVENT_ALLOW, 0, 0, 0, lock,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
return ata_atapicmd(stp->device, ccb, NULL, 0, 0, 30);
|
|
}
|
|
|
|
static int
|
|
ast_load_unload(struct ast_softc *stp, u_int8_t function)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_START_STOP, 0x01, 0, 0, function, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int error;
|
|
|
|
if ((function & ATAPI_SS_EJECT) && !stp->cap.eject)
|
|
return 0;
|
|
error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10);
|
|
if (error)
|
|
return error;
|
|
tsleep((caddr_t)&error, PRIBIO, "astlu", 1 * hz);
|
|
if (function == ATAPI_SS_EJECT)
|
|
return 0;
|
|
return ast_wait_dsc(stp->device, 60*60);
|
|
}
|
|
|
|
static int
|
|
ast_rewind(struct ast_softc *stp)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_REZERO, 0x01, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int error;
|
|
|
|
error = ata_atapicmd(stp->device, ccb, NULL, 0, 0, 10);
|
|
if (error)
|
|
return error;
|
|
return ast_wait_dsc(stp->device, 60*60);
|
|
}
|
|
|
|
static int
|
|
ast_erase(struct ast_softc *stp)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_ERASE, 3, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0 };
|
|
int error;
|
|
|
|
if ((error = ast_rewind(stp)))
|
|
return error;
|
|
|
|
return ata_atapicmd(stp->device, ccb, NULL, 0, 0, 60*60);
|
|
}
|
|
|
|
static int
|
|
ast_test_ready(struct ata_device *atadev)
|
|
{
|
|
int8_t ccb[16] = { ATAPI_TEST_UNIT_READY, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
return ata_atapicmd(atadev, ccb, NULL, 0, 0, 30);
|
|
}
|
|
|
|
static int
|
|
ast_wait_dsc(struct ata_device *atadev, int timeout)
|
|
{
|
|
int error = 0;
|
|
int8_t ccb[16] = { ATAPI_POLL_DSC, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
|
|
timeout *= hz;
|
|
while (timeout > 0) {
|
|
error = ata_atapicmd(atadev, ccb, NULL, 0, 0, 0);
|
|
if (error != EBUSY)
|
|
break;
|
|
tsleep(&error, PRIBIO, "atpwt", hz / 2);
|
|
timeout -= (hz / 2);
|
|
}
|
|
return error;
|
|
}
|