6a5dc97620
The cdevsw_add() function now finds the major number(s) in the struct cdevsw passed to it. cdevsw_add_generic() is no longer needed, cdevsw_add() does the same thing. cdevsw_add() will print an message if the d_maj field looks bogus. Remove nblkdev and nchrdev variables. Most places they were used bogusly. Instead check a dev_t for validity by seeing if devsw() or bdevsw() returns NULL. Move bdevsw() and devsw() functions to kern/kern_conf.c Bump __FreeBSD_version to 400006 This commit removes: 72 bogus makedev() calls 26 bogus SYSINIT functions if_xe.c bogusly accessed cdevsw[], author/maintainer please fix. I4b and vinum not changed. Patches emailed to authors. LINT probably broken until they catch up.
776 lines
20 KiB
C
776 lines
20 KiB
C
/*
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* Copyright (c) 1997,1998 Junichi Satoh <junichi@astec.co.jp>
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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 as
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* the first lines of this file unmodified.
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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 Junichi Satoh ``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 Junichi Satoh 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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* $Id: wfd.c,v 1.24 1999/05/30 16:52:30 phk Exp $
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*/
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/*
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* ATAPI Floppy, LS-120 driver
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*/
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#include "wdc.h"
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#include "wfd.h"
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#if NWFD > 0 && NWDC > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/conf.h>
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#include <sys/proc.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/devicestat.h>
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#include <sys/disklabel.h>
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#include <sys/diskslice.h>
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#include <sys/cdio.h>
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#ifdef DEVFS
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#include <sys/devfsext.h>
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#endif /*DEVFS*/
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#include <i386/isa/atapi.h>
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static d_open_t wfdopen;
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static d_close_t wfdclose;
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static d_ioctl_t wfdioctl;
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static d_strategy_t wfdstrategy;
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#define CDEV_MAJOR 87
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#define BDEV_MAJOR 1
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static struct cdevsw wfd_cdevsw = {
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/* open */ wfdopen,
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/* close */ wfdclose,
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/* read */ physread,
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/* write */ physwrite,
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/* ioctl */ wfdioctl,
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/* stop */ nostop,
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/* reset */ noreset,
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/* devtotty */ nodevtotty,
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/* poll */ nopoll,
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/* mmap */ nommap,
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/* strategy */ wfdstrategy,
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/* name */ "wfd",
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/* parms */ noparms,
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ D_DISK,
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/* maxio */ 0,
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/* bmaj */ BDEV_MAJOR
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};
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int wfdattach(struct atapi*, int, struct atapi_params*, int);
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#define NUNIT (NWDC*2) /* Max. number of devices */
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#define UNIT(d) ((minor(d) >> 3) & 3) /* Unit part of minor device number */
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#define F_BOPEN 0x0001 /* The block device is opened */
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#define F_MEDIA_CHANGED 0x0002 /* The media have changed since open */
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#define F_DEBUG 0x0004 /* Print debug info */
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/*
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* LS-120 Capabilities and Mechanical Status Page
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*/
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struct cappage {
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/* Mode data header */
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u_short data_length;
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u_char medium_type;
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#define MDT_UNKNOWN 0x00
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#define MDT_NO_DISC 0x70
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#define MDT_DOOR_OPEN 0x71
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#define MDT_FMT_ERROR 0x72
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#define MDT_2DD_UN 0x10
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#define MDT_2DD 0x11
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#define MDT_2HD_UN 0x20
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#define MDT_2HD_12_98 0x22
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#define MDT_2HD_12 0x23
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#define MDT_2HD_144 0x24
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#define MDT_LS120 0x31
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unsigned reserved0 :7;
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unsigned wp :1; /* Write protect */
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u_char reserved1[4];
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/* Capabilities page */
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unsigned page_code :6; /* Page code - Should be 0x5 */
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#define CAP_PAGE 0x05
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unsigned reserved1_6 :1; /* Reserved */
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unsigned ps :1; /* The device is capable of saving the page */
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u_char page_length; /* Page Length - Should be 0x1e */
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u_short transfer_rate; /* In kilobits per second */
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u_char heads, sectors; /* Number of heads, Number of sectors per track */
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u_short sector_size; /* Byes per sector */
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u_short cyls; /* Number of cylinders */
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u_char reserved10[10];
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u_char motor_delay; /* Motor off delay */
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u_char reserved21[7];
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u_short rpm; /* Rotations per minute */
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u_char reserved30[2];
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};
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/* misuse a flag to identify format operation */
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#define B_FORMAT B_XXX
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struct wfd {
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struct atapi *ata; /* Controller structure */
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int unit; /* IDE bus drive unit */
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int lun; /* Logical device unit */
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int flags; /* Device state flags */
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int refcnt; /* The number of raw opens */
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int maxblks; /* transfer size limit */
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struct buf_queue_head buf_queue; /* Queue of i/o requests */
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struct atapi_params *param; /* Drive parameters table */
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struct cappage cap; /* Capabilities page info */
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char description[80]; /* Device description */
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#ifdef DEVFS
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void *cdevs;
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void *bdevs;
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#endif
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struct diskslices *dk_slices; /* virtual drives */
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struct devstat device_stats;
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};
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static struct wfd *wfdtab[NUNIT]; /* Drive info by unit number */
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static int wfdnlun = 0; /* Number of configured drives */
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static void wfd_start (struct wfd *t);
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static void wfd_done (struct wfd *t, struct buf *bp, int resid,
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struct atapires result);
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static void wfd_error (struct wfd *t, struct atapires result);
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static int wfd_request_wait (struct wfd *t, u_char cmd, u_char a1, u_char a2,
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u_char a3, u_char a4, u_char a5, u_char a6, u_char a7, u_char a8,
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u_char a9, char *addr, int count);
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static void wfd_describe (struct wfd *t);
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static int wfd_eject (struct wfd *t, int closeit);
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static void wfdstrategy1(struct buf *bp);
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/*
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* Dump the array in hexadecimal format for debugging purposes.
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*/
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static void wfd_dump (int lun, char *label, void *data, int len)
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{
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u_char *p = data;
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printf ("wfd%d: %s %x", lun, label, *p++);
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while (--len > 0)
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printf ("-%x", *p++);
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printf ("\n");
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}
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int
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wfdattach (struct atapi *ata, int unit, struct atapi_params *ap, int debug)
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{
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struct wfd *t;
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struct atapires result;
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int lun, i;
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#ifdef DEVFS
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int mynor;
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#endif
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if (wfdnlun >= NUNIT) {
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printf ("wfd: too many units\n");
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return (0);
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}
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if (!atapi_request_immediate) {
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printf("wfd: configuration error, ATAPI core code not present!\n");
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printf("wfd: check `options ATAPI_STATIC' in your kernel config file!\n");
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return (0);
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}
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t = malloc (sizeof (struct wfd), M_TEMP, M_NOWAIT);
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if (! t) {
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printf ("wfd: out of memory\n");
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return (0);
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}
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wfdtab[wfdnlun] = t;
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bzero (t, sizeof (struct wfd));
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bufq_init(&t->buf_queue);
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t->ata = ata;
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t->unit = unit;
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lun = t->lun = wfdnlun++;
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t->param = ap;
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t->flags = F_MEDIA_CHANGED;
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t->refcnt = 0;
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if (debug) {
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t->flags |= F_DEBUG;
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/* Print params. */
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wfd_dump (t->lun, "info", ap, sizeof *ap);
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}
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/* Get drive capabilities. */
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/* Do it twice to avoid the stale media changed state. */
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for (i = 0; i < 2; i++) {
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result = atapi_request_immediate (ata, unit, ATAPI_MODE_SENSE,
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0, CAP_PAGE, 0, 0, 0, 0,
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sizeof (t->cap) >> 8, sizeof (t->cap),
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0, 0, 0, 0, 0, 0, 0, (char*) &t->cap, sizeof (t->cap));
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}
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if (result.code == RES_ERR &&
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(result.error & AER_SKEY) == AER_SK_UNIT_ATTENTION)
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result = atapi_request_immediate (ata, unit, ATAPI_MODE_SENSE,
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0, CAP_PAGE, 0, 0, 0, 0, sizeof (t->cap) >> 8,
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sizeof (t->cap), 0, 0, 0, 0, 0, 0, 0,
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(char*) &t->cap, sizeof (t->cap));
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/* Some drives have shorter capabilities page. */
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if (result.code == RES_UNDERRUN)
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result.code = 0;
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if (result.code == 0) {
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wfd_describe (t);
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if (t->flags & F_DEBUG)
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wfd_dump (t->lun, "cap", &t->cap, sizeof t->cap);
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} else
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return -1;
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/*
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* The IOMEGA ZIP 100, at firmware 21.* and 23.* at least
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* is known to lock up if transfers > 64 blocks are
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* requested.
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*/
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if (!strcmp(ap->model, "IOMEGA ZIP 100 ATAPI")) {
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printf("wfd%d: buggy Zip drive, 64-block transfer limit set\n",
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t->lun);
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t->maxblks = 64;
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} else {
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t->maxblks = 0; /* no limit */
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}
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#ifdef DEVFS
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mynor = dkmakeminor(t->lun, WHOLE_DISK_SLICE, RAW_PART);
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t->bdevs = devfs_add_devswf(&wfd_cdevsw, mynor,
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DV_BLK, UID_ROOT, GID_OPERATOR, 0640,
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"wfd%d", t->lun);
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t->cdevs = devfs_add_devswf(&wfd_cdevsw, mynor,
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DV_CHR, UID_ROOT, GID_OPERATOR, 0640,
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"rwfd%d", t->lun);
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#endif /* DEVFS */
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/*
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* Export the drive to the devstat interface.
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*/
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devstat_add_entry(&t->device_stats, "wfd",
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wfdnlun, t->cap.sector_size,
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DEVSTAT_NO_ORDERED_TAGS,
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DEVSTAT_TYPE_FLOPPY | DEVSTAT_TYPE_IF_IDE,
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DEVSTAT_PRIORITY_WFD);
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return (1);
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}
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void wfd_describe (struct wfd *t)
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{
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int no_print = 0;
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t->cap.cyls = ntohs (t->cap.cyls);
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t->cap.sector_size = ntohs (t->cap.sector_size);
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printf ("wfd%d: ", t->lun);
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switch (t->cap.medium_type) {
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case MDT_UNKNOWN:
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printf ("medium type unknown (no disk)");
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no_print = 1;
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break;
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case MDT_2DD_UN:
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printf ("2DD(capacity unknown) floppy disk loaded");
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no_print = 1;
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break;
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case MDT_2DD:
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printf ("720KB floppy disk loaded");
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break;
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case MDT_2HD_UN:
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printf ("2HD(capacity unknown) floppy disk loaded");
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no_print = 1;
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break;
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case MDT_2HD_12_98:
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printf ("1.25MB(PC-9801 format) floppy disk loaded");
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break;
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case MDT_2HD_12:
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printf ("1.2MB floppy disk loaded");
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break;
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case MDT_2HD_144:
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printf ("1.44MB floppy disk loaded");
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break;
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case MDT_LS120:
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printf ("120MB floppy disk loaded");
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break;
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case MDT_NO_DISC:
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printf ("no disc inside");
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no_print = 1;
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break;
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case MDT_DOOR_OPEN:
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printf ("door open");
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no_print = 1;
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break;
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case MDT_FMT_ERROR:
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printf ("medium format error");
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no_print = 1;
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break;
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default:
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printf ("medium type=0x%x", t->cap.medium_type);
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break;
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}
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if (t->cap.wp)
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printf(", write protected");
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printf ("\n");
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if (!no_print) {
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printf ("wfd%d: ", t->lun);
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printf ("%u cyls", t->cap.cyls);
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printf (", %u heads, %u S/T", t->cap.heads, t->cap.sectors);
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printf (", %u B/S", t->cap.sector_size);
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printf ("\n");
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}
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}
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int wfdopen (dev_t dev, int flags, int fmt, struct proc *p)
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{
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int lun = UNIT(dev);
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struct wfd *t;
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struct atapires result;
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int errcode = 0;
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struct disklabel label;
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/* Check that the device number is legal
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* and the ATAPI driver is loaded. */
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if (lun >= wfdnlun || ! atapi_request_immediate)
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return (ENXIO);
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t = wfdtab[lun];
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t->flags &= ~F_MEDIA_CHANGED;
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/* Lock the media. */
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wfd_request_wait (t, ATAPI_PREVENT_ALLOW,
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0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0);
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/* Sense the media type */
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result = atapi_request_wait (t->ata, t->unit, ATAPI_MODE_SENSE,
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0, CAP_PAGE, 0, 0, 0, 0,
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sizeof (t->cap) >> 8, sizeof (t->cap),
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0, 0, 0, 0, 0, 0, 0,
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(char*) &t->cap, sizeof (t->cap));
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if (result.code)
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printf ("wfd%d: Sense the media type is failed.\n", t->lun);
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else {
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t->cap.cyls = ntohs (t->cap.cyls);
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t->cap.sector_size = ntohs (t->cap.sector_size);
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}
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/* Build label for whole disk. */
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bzero(&label, sizeof label);
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label.d_secsize = t->cap.sector_size;
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label.d_nsectors = t->cap.sectors;
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label.d_ntracks = t->cap.heads;
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label.d_ncylinders = t->cap.cyls;
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label.d_secpercyl = t->cap.heads * t->cap.sectors;
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label.d_rpm = 720;
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label.d_secperunit = label.d_secpercyl * t->cap.cyls;
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/* Initialize slice tables. */
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errcode = dsopen("wfd", dev, fmt, 0, &t->dk_slices, &label,
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wfdstrategy1, (ds_setgeom_t *)NULL, &wfd_cdevsw);
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if (errcode != 0)
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return errcode;
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t->flags |= F_BOPEN;
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return (0);
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}
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/*
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* Close the device. Only called if we are the LAST
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* occurence of an open device.
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*/
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int wfdclose (dev_t dev, int flags, int fmt, struct proc *p)
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{
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int lun = UNIT(dev);
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struct wfd *t = wfdtab[lun];
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dsclose(dev, fmt, t->dk_slices);
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if(!dsisopen(t->dk_slices)) {
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/* If we were the last open of the entire device, release it. */
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if (! t->refcnt)
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wfd_request_wait (t, ATAPI_PREVENT_ALLOW,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
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t->flags &= ~F_BOPEN;
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}
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return (0);
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}
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static void
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wfdstrategy1(struct buf *bp)
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{
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/*
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* XXX - do something to make wdstrategy() but not this block while
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* we're doing dsinit() and dsioctl().
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*/
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wfdstrategy(bp);
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}
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/*
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* Actually translate the requested transfer into one the physical driver can
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* understand. The transfer is described by a buf and will include only one
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* physical transfer.
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*/
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void wfdstrategy (struct buf *bp)
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{
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int lun = UNIT(bp->b_dev);
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struct wfd *t = wfdtab[lun];
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int x;
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/* If it's a null transfer, return immediatly. */
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if (bp->b_bcount == 0) {
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bp->b_resid = 0;
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biodone (bp);
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return;
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}
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/*
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* Do bounds checking, adjust transfer, and set b_pblkno.
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*/
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if (dscheck(bp, t->dk_slices) <= 0) {
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biodone(bp);
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return;
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}
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x = splbio();
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/* Place it in the queue of disk activities for this disk. */
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bufqdisksort (&t->buf_queue, bp);
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/* Tell the device to get going on the transfer if it's
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* not doing anything, otherwise just wait for completion. */
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wfd_start (t);
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splx(x);
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}
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/*
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* Look to see if there is a buf waiting for the device
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* and that the device is not already busy. If both are true,
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* It dequeues the buf and creates an ATAPI command to perform the
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* transfer in the buf.
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* The bufs are queued by the strategy routine (wfdstrategy).
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* Must be called at the correct (splbio) level.
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*/
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static void wfd_start (struct wfd *t)
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{
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struct buf *bp = bufq_first(&t->buf_queue);
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|
u_long blkno, nblk;
|
|
u_char op_code;
|
|
long count;
|
|
int pxcount, pxnblk;
|
|
u_char *pxdest;
|
|
|
|
|
|
/* See if there is a buf to do and we are not already doing one. */
|
|
if (! bp)
|
|
return;
|
|
|
|
/* Unqueue the request. */
|
|
bufq_remove(&t->buf_queue, bp);
|
|
|
|
/* Tell devstat we are starting on the transaction */
|
|
devstat_start_transaction(&t->device_stats);
|
|
|
|
/* We have a buf, now we should make a command
|
|
* First, translate the block to absolute and put it in terms of the
|
|
* logical blocksize of the device. */
|
|
blkno = bp->b_pblkno / (t->cap.sector_size / 512);
|
|
nblk = (bp->b_bcount + (t->cap.sector_size - 1)) / t->cap.sector_size;
|
|
|
|
if ((t->maxblks == 0) || (nblk <= t->maxblks)) {
|
|
|
|
if(bp->b_flags & B_READ) {
|
|
op_code = ATAPI_READ_BIG;
|
|
count = bp->b_bcount;
|
|
} else {
|
|
op_code = ATAPI_WRITE_BIG;
|
|
count = -bp->b_bcount;
|
|
}
|
|
|
|
/* only one transfer */
|
|
(int)bp->b_driver1 = 0;
|
|
(int)bp->b_driver2 = 0;
|
|
atapi_request_callback (t->ata, t->unit, op_code, 0,
|
|
blkno>>24, blkno>>16, blkno>>8, blkno,
|
|
0, nblk>>8, nblk, 0, 0,
|
|
0, 0, 0, 0, 0,
|
|
(u_char*) bp->b_data, count,
|
|
(void*)wfd_done, t, bp);
|
|
} else {
|
|
|
|
/*
|
|
* We can't handle this request in a single
|
|
* read/write operation. Instead, queue a set of
|
|
* transfers, and record the number of transfers
|
|
* and the running residual in the b_driver
|
|
* fields of the bp.
|
|
*/
|
|
|
|
if(bp->b_flags & B_READ) {
|
|
op_code = ATAPI_READ_BIG;
|
|
} else {
|
|
op_code = ATAPI_WRITE_BIG;
|
|
}
|
|
|
|
/* calculate number of transfers */
|
|
(int)bp->b_driver1 = (nblk - 1) / t->maxblks;
|
|
(int)bp->b_driver2 = 0;
|
|
|
|
pxdest = (u_char *)bp->b_data;
|
|
pxcount = bp->b_bcount;
|
|
|
|
/* construct partial transfer requests */
|
|
while (nblk > 0) {
|
|
pxnblk = min(nblk, t->maxblks);
|
|
count = min(pxcount, t->maxblks * t->cap.sector_size);
|
|
|
|
atapi_request_callback(t->ata, t->unit, op_code, 0,
|
|
blkno>>24, blkno>>16, blkno>>8,
|
|
blkno, 0, pxnblk>>8, pxnblk,
|
|
0, 0, 0, 0, 0, 0, 0,
|
|
pxdest,
|
|
(bp->b_flags & B_READ) ?
|
|
count : -count,
|
|
(void*)wfd_done, t, bp);
|
|
nblk -= pxnblk;
|
|
pxcount -= count;
|
|
pxdest += count;
|
|
blkno += pxnblk;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void wfd_done (struct wfd *t, struct buf *bp, int resid,
|
|
struct atapires result)
|
|
{
|
|
|
|
if (result.code) {
|
|
wfd_error (t, result);
|
|
bp->b_error = EIO;
|
|
bp->b_flags |= B_ERROR;
|
|
} else
|
|
(int)bp->b_driver2 += resid;
|
|
/*
|
|
* We can't call biodone until all outstanding
|
|
* transfer fragments are handled. If one hits
|
|
* an error, we will be returning an error, but
|
|
* only when all are complete.
|
|
*/
|
|
if (((int)bp->b_driver1)-- <= 0) {
|
|
bp->b_resid = (int)bp->b_driver2;
|
|
|
|
/* Tell devstat we have finished with the transaction */
|
|
devstat_end_transaction(&t->device_stats,
|
|
bp->b_bcount - bp->b_resid,
|
|
DEVSTAT_TAG_NONE,
|
|
(bp->b_flags & B_READ) ? DEVSTAT_READ : DEVSTAT_WRITE);
|
|
|
|
biodone (bp);
|
|
}
|
|
|
|
wfd_start (t);
|
|
}
|
|
|
|
static void wfd_error (struct wfd *t, struct atapires result)
|
|
{
|
|
if (result.code != RES_ERR)
|
|
return;
|
|
switch (result.error & AER_SKEY) {
|
|
case AER_SK_NOT_READY:
|
|
if (result.error & ~AER_SKEY) {
|
|
/* Not Ready */
|
|
printf ("wfd%d: not ready\n", t->lun);
|
|
return;
|
|
}
|
|
/* Tray open. */
|
|
if (! (t->flags & F_MEDIA_CHANGED))
|
|
printf ("wfd%d: tray open\n", t->lun);
|
|
t->flags |= F_MEDIA_CHANGED;
|
|
return;
|
|
|
|
case AER_SK_UNIT_ATTENTION:
|
|
/* Media changed. */
|
|
if (! (t->flags & F_MEDIA_CHANGED))
|
|
printf ("wfd%d: media changed\n", t->lun);
|
|
t->flags |= F_MEDIA_CHANGED;
|
|
return;
|
|
|
|
case AER_SK_ILLEGAL_REQUEST:
|
|
/* Unknown command or invalid command arguments. */
|
|
if (t->flags & F_DEBUG)
|
|
printf ("wfd%d: invalid command\n", t->lun);
|
|
return;
|
|
}
|
|
printf ("wfd%d: i/o error, status=%b, error=%b\n", t->lun,
|
|
result.status, ARS_BITS, result.error, AER_BITS);
|
|
}
|
|
|
|
static int wfd_request_wait (struct wfd *t, u_char cmd, u_char a1, u_char a2,
|
|
u_char a3, u_char a4, u_char a5, u_char a6, u_char a7, u_char a8,
|
|
u_char a9, char *addr, int count)
|
|
{
|
|
struct atapires result;
|
|
|
|
result = atapi_request_wait (t->ata, t->unit, cmd,
|
|
a1, a2, a3, a4, a5, a6, a7, a8, a9, 0, 0, 0, 0, 0, 0,
|
|
addr, count);
|
|
if (result.code) {
|
|
wfd_error (t, result);
|
|
return (EIO);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Perform special action on behalf of the user.
|
|
* Knows about the internals of this device
|
|
*/
|
|
int wfdioctl (dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
|
|
{
|
|
int lun = UNIT(dev);
|
|
struct wfd *t = wfdtab[lun];
|
|
int error = 0;
|
|
|
|
error = dsioctl("wfd", dev, cmd, addr, flag, &t->dk_slices,
|
|
wfdstrategy1, (ds_setgeom_t *)NULL);
|
|
if (error != -1)
|
|
return (error);
|
|
|
|
if (t->flags & F_MEDIA_CHANGED)
|
|
switch (cmd) {
|
|
case CDIOCSETDEBUG:
|
|
case CDIOCCLRDEBUG:
|
|
case CDIOCRESET:
|
|
/* These ops are media change transparent. */
|
|
break;
|
|
default:
|
|
/* Lock the media. */
|
|
wfd_request_wait (t, ATAPI_PREVENT_ALLOW,
|
|
0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0);
|
|
break;
|
|
}
|
|
switch (cmd) {
|
|
case CDIOCSETDEBUG:
|
|
error = suser(p);
|
|
if (error)
|
|
return (error);
|
|
t->flags |= F_DEBUG;
|
|
atapi_debug (t->ata, 1);
|
|
return 0;
|
|
case CDIOCCLRDEBUG:
|
|
error = suser(p);
|
|
if (error)
|
|
return (error);
|
|
t->flags &= ~F_DEBUG;
|
|
atapi_debug (t->ata, 0);
|
|
return 0;
|
|
case CDIOCRESET:
|
|
error = suser(p);
|
|
if (error)
|
|
return (error);
|
|
return wfd_request_wait (t, ATAPI_TEST_UNIT_READY,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
case CDIOCEJECT:
|
|
/* Don't allow eject if the device is opened
|
|
* by somebody (not us) in block mode. */
|
|
if ((t->flags & F_BOPEN) && t->refcnt)
|
|
return (EBUSY);
|
|
return wfd_eject (t, 0);
|
|
case CDIOCCLOSE:
|
|
if ((t->flags & F_BOPEN) && t->refcnt)
|
|
return (0);
|
|
return wfd_eject (t, 1);
|
|
default:
|
|
return (ENOTTY);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int wfd_eject (struct wfd *t, int closeit)
|
|
{
|
|
struct atapires result;
|
|
|
|
/* Try to stop the disc. */
|
|
result = atapi_request_wait (t->ata, t->unit, ATAPI_START_STOP,
|
|
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
|
if (result.code == RES_ERR &&
|
|
((result.error & AER_SKEY) == AER_SK_NOT_READY ||
|
|
(result.error & AER_SKEY) == AER_SK_UNIT_ATTENTION)) {
|
|
int err;
|
|
|
|
if (!closeit)
|
|
return (0);
|
|
/*
|
|
* The disc was unloaded.
|
|
* Load it (close tray).
|
|
* Read the table of contents.
|
|
*/
|
|
err = wfd_request_wait (t, ATAPI_START_STOP,
|
|
0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0);
|
|
if (err)
|
|
return (err);
|
|
|
|
/* Lock the media. */
|
|
wfd_request_wait (t, ATAPI_PREVENT_ALLOW,
|
|
0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0);
|
|
|
|
return (0);
|
|
}
|
|
|
|
if (result.code) {
|
|
wfd_error (t, result);
|
|
return (EIO);
|
|
}
|
|
|
|
if (closeit)
|
|
return (0);
|
|
|
|
/* Give it some time to stop spinning. */
|
|
tsleep ((caddr_t)&lbolt, PRIBIO, "wfdej1", 0);
|
|
tsleep ((caddr_t)&lbolt, PRIBIO, "wfdej2", 0);
|
|
|
|
/* Unlock. */
|
|
wfd_request_wait (t, ATAPI_PREVENT_ALLOW,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
|
|
/* Eject. */
|
|
t->flags |= F_MEDIA_CHANGED;
|
|
return wfd_request_wait (t, ATAPI_START_STOP,
|
|
0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
|
|
static void wfd_drvinit(void *unused)
|
|
{
|
|
cdevsw_add(&wfd_cdevsw);
|
|
}
|
|
|
|
SYSINIT(wfddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,wfd_drvinit,NULL)
|
|
|
|
#endif /* NWFD && NWDC */
|