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freebsd-dev/sys/cam/scsi/scsi_cd.c
Alexander Motin 90bcc81bc3 Delay GEOM disk_create() until CAM periph probe completes. 
Before this patch CAM periph drivers called both disk_alloc() and
disk_create() same time on periph creation.  But then prevented disks
from opening until the periph probe completion with cam_periph_hold().
As result, especially if disk misbehaves during the probe, GEOM event
thread, triggered to taste the disk, got blocked on open attempt,
potentially for a long time, unable to process other events.

This patch moves disk_create() call from periph creation to the end of
the probe. To allow disk_create() calls from non-sleepable CAM contexts
some of its duties requiring memory allocations are moved either back
to disk_alloc() or forward to g_disk_create(), so now disk_alloc() and
disk_add_alias() are the only disk methods that require sleeping.  If
disk fails during the probe disk_create() may just be skipped, going
directly to disk_destroy().  Other method calls during that time are
just ignored.  Since GEOM may now see the disks after CAM bus scan is
already completed, introduce per-periph boot hold functions. Enclosure
driver already had such mechanism, so just generalize it.

Reviewed by:	imp
MFC after:	1 month
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D35784
2022-07-14 16:17:36 -04:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1997 Justin T. Gibbs.
* Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Kenneth D. Merry.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*-
* Portions of this driver taken from the original FreeBSD cd driver.
* Written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems for use under the MACH(2.5) operating system.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*
* from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_cd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bio.h>
#include <sys/conf.h>
#include <sys/disk.h>
#include <sys/malloc.h>
#include <sys/cdio.h>
#include <sys/cdrio.h>
#include <sys/dvdio.h>
#include <sys/devicestat.h>
#include <sys/proc.h>
#include <sys/sbuf.h>
#include <sys/sysctl.h>
#include <sys/taskqueue.h>
#include <geom/geom_disk.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_periph.h>
#include <cam/cam_xpt_periph.h>
#include <cam/cam_queue.h>
#include <cam/cam_sim.h>
#include <cam/scsi/scsi_message.h>
#include <cam/scsi/scsi_da.h>
#include <cam/scsi/scsi_cd.h>
#define LEADOUT 0xaa /* leadout toc entry */
struct cd_params {
u_int32_t blksize;
u_long disksize;
};
typedef enum {
CD_Q_NONE = 0x00,
CD_Q_NO_TOUCH = 0x01,
CD_Q_BCD_TRACKS = 0x02,
CD_Q_10_BYTE_ONLY = 0x10,
CD_Q_RETRY_BUSY = 0x40
} cd_quirks;
#define CD_Q_BIT_STRING \
"\020" \
"\001NO_TOUCH" \
"\002BCD_TRACKS" \
"\00510_BYTE_ONLY" \
"\007RETRY_BUSY"
typedef enum {
CD_FLAG_INVALID = 0x0001,
CD_FLAG_NEW_DISC = 0x0002,
CD_FLAG_DISC_LOCKED = 0x0004,
CD_FLAG_DISC_REMOVABLE = 0x0008,
CD_FLAG_SAW_MEDIA = 0x0010,
CD_FLAG_ACTIVE = 0x0080,
CD_FLAG_SCHED_ON_COMP = 0x0100,
CD_FLAG_RETRY_UA = 0x0200,
CD_FLAG_VALID_MEDIA = 0x0400,
CD_FLAG_VALID_TOC = 0x0800,
CD_FLAG_SCTX_INIT = 0x1000,
CD_FLAG_MEDIA_WAIT = 0x2000,
CD_FLAG_MEDIA_SCAN_ACT = 0x4000
} cd_flags;
typedef enum {
CD_CCB_PROBE = 0x01,
CD_CCB_BUFFER_IO = 0x02,
CD_CCB_TUR = 0x03,
CD_CCB_MEDIA_PREVENT = 0x04,
CD_CCB_MEDIA_ALLOW = 0x05,
CD_CCB_MEDIA_SIZE = 0x06,
CD_CCB_MEDIA_TOC_HDR = 0x07,
CD_CCB_MEDIA_TOC_FULL = 0x08,
CD_CCB_MEDIA_TOC_LEAD = 0x09,
CD_CCB_TYPE_MASK = 0x0F,
CD_CCB_RETRY_UA = 0x10
} cd_ccb_state;
#define ccb_state ppriv_field0
#define ccb_bp ppriv_ptr1
/*
* According to the MMC-6 spec, 6.25.3.2.11, the lead-out is reported by
* READ_TOC as logical track 170, so at most 169 tracks may be reported.
*/
struct cd_tocdata {
struct ioc_toc_header header;
struct cd_toc_entry entries[170];
};
struct cd_toc_single {
struct ioc_toc_header header;
struct cd_toc_entry entry;
};
typedef enum {
CD_STATE_PROBE,
CD_STATE_NORMAL,
CD_STATE_MEDIA_PREVENT,
CD_STATE_MEDIA_ALLOW,
CD_STATE_MEDIA_SIZE,
CD_STATE_MEDIA_TOC_HDR,
CD_STATE_MEDIA_TOC_FULL,
CD_STATE_MEDIA_TOC_LEAD
} cd_state;
struct cd_softc {
cam_pinfo pinfo;
cd_state state;
volatile cd_flags flags;
struct bio_queue_head bio_queue;
LIST_HEAD(, ccb_hdr) pending_ccbs;
struct cd_params params;
cd_quirks quirks;
struct cam_periph *periph;
int minimum_command_size;
int outstanding_cmds;
int tur;
struct task sysctl_task;
struct sysctl_ctx_list sysctl_ctx;
struct sysctl_oid *sysctl_tree;
STAILQ_HEAD(, cd_mode_params) mode_queue;
struct cd_tocdata toc;
int toc_read_len;
struct cd_toc_single leadout;
struct disk *disk;
struct callout mediapoll_c;
#define CD_ANNOUNCETMP_SZ 120
char announce_temp[CD_ANNOUNCETMP_SZ];
#define CD_ANNOUNCE_SZ 400
char announce_buf[CD_ANNOUNCE_SZ];
};
struct cd_page_sizes {
int page;
int page_size;
};
static struct cd_page_sizes cd_page_size_table[] =
{
{ AUDIO_PAGE, sizeof(struct cd_audio_page)}
};
struct cd_quirk_entry {
struct scsi_inquiry_pattern inq_pat;
cd_quirks quirks;
};
/*
* NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because
* your device hangs when it gets a 10 byte command. Adding a quirk just
* to get rid of the informative diagnostic message is not acceptable. All
* 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
* referenced in a comment along with the quirk) , and must be approved by
* ken@FreeBSD.org. Any quirks added that don't adhere to this policy may
* be removed until the submitter can explain why they are needed.
* 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
* when the CAM_NEW_TRAN_CODE work is done.
*/
static struct cd_quirk_entry cd_quirk_table[] =
{
{
{ T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
/* quirks */ CD_Q_BCD_TRACKS
},
{
/*
* VMware returns BUSY status when storage has transient
* connectivity problems, so better wait.
*/
{T_CDROM, SIP_MEDIA_REMOVABLE, "NECVMWar", "VMware IDE CDR10", "*"},
/*quirks*/ CD_Q_RETRY_BUSY
}
};
#ifdef COMPAT_FREEBSD32
struct ioc_read_toc_entry32 {
u_char address_format;
u_char starting_track;
u_short data_len;
uint32_t data; /* (struct cd_toc_entry *) */
};
#define CDIOREADTOCENTRYS_32 \
_IOC_NEWTYPE(CDIOREADTOCENTRYS, struct ioc_read_toc_entry32)
#endif
static disk_open_t cdopen;
static disk_close_t cdclose;
static disk_ioctl_t cdioctl;
static disk_strategy_t cdstrategy;
static periph_init_t cdinit;
static periph_ctor_t cdregister;
static periph_dtor_t cdcleanup;
static periph_start_t cdstart;
static periph_oninv_t cdoninvalidate;
static void cdasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg);
static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
static int cdrunccb(union ccb *ccb,
int (*error_routine)(union ccb *ccb,
u_int32_t cam_flags,
u_int32_t sense_flags),
u_int32_t cam_flags, u_int32_t sense_flags);
static void cddone(struct cam_periph *periph,
union ccb *start_ccb);
static union cd_pages *cdgetpage(struct cd_mode_params *mode_params);
static int cdgetpagesize(int page_num);
static void cdprevent(struct cam_periph *periph, int action);
static void cdmediaprobedone(struct cam_periph *periph);
static int cdcheckmedia(struct cam_periph *periph, int do_wait);
#if 0
static int cdsize(struct cam_periph *periph, u_int32_t *size);
#endif
static int cd6byteworkaround(union ccb *ccb);
static int cderror(union ccb *ccb, u_int32_t cam_flags,
u_int32_t sense_flags);
static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
u_int32_t start, u_int8_t *data,
u_int32_t len, u_int32_t sense_flags);
static int cdgetmode(struct cam_periph *periph,
struct cd_mode_params *data, u_int32_t page);
static int cdsetmode(struct cam_periph *periph,
struct cd_mode_params *data);
static int cdplay(struct cam_periph *periph, u_int32_t blk,
u_int32_t len);
static int cdreadsubchannel(struct cam_periph *periph,
u_int32_t mode, u_int32_t format,
int track,
struct cd_sub_channel_info *data,
u_int32_t len);
static int cdplaymsf(struct cam_periph *periph, u_int32_t startm,
u_int32_t starts, u_int32_t startf,
u_int32_t endm, u_int32_t ends,
u_int32_t endf);
static int cdplaytracks(struct cam_periph *periph,
u_int32_t strack, u_int32_t sindex,
u_int32_t etrack, u_int32_t eindex);
static int cdpause(struct cam_periph *periph, u_int32_t go);
static int cdstopunit(struct cam_periph *periph, u_int32_t eject);
static int cdstartunit(struct cam_periph *periph, int load);
static int cdsetspeed(struct cam_periph *periph,
u_int32_t rdspeed, u_int32_t wrspeed);
static int cdreportkey(struct cam_periph *periph,
struct dvd_authinfo *authinfo);
static int cdsendkey(struct cam_periph *periph,
struct dvd_authinfo *authinfo);
static int cdreaddvdstructure(struct cam_periph *periph,
struct dvd_struct *dvdstruct);
static callout_func_t cdmediapoll;
static struct periph_driver cddriver =
{
cdinit, "cd",
TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
};
PERIPHDRIVER_DECLARE(cd, cddriver);
#ifndef CD_DEFAULT_POLL_PERIOD
#define CD_DEFAULT_POLL_PERIOD 3
#endif
#ifndef CD_DEFAULT_RETRY
#define CD_DEFAULT_RETRY 4
#endif
#ifndef CD_DEFAULT_TIMEOUT
#define CD_DEFAULT_TIMEOUT 30000
#endif
static int cd_poll_period = CD_DEFAULT_POLL_PERIOD;
static int cd_retry_count = CD_DEFAULT_RETRY;
static int cd_timeout = CD_DEFAULT_TIMEOUT;
static SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
"CAM CDROM driver");
SYSCTL_INT(_kern_cam_cd, OID_AUTO, poll_period, CTLFLAG_RWTUN,
&cd_poll_period, 0, "Media polling period in seconds");
SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RWTUN,
&cd_retry_count, 0, "Normal I/O retry count");
SYSCTL_INT(_kern_cam_cd, OID_AUTO, timeout, CTLFLAG_RWTUN,
&cd_timeout, 0, "Timeout, in us, for read operations");
static MALLOC_DEFINE(M_SCSICD, "scsi_cd", "scsi_cd buffers");
static void
cdinit(void)
{
cam_status status;
/*
* Install a global async callback. This callback will
* receive async callbacks like "new device found".
*/
status = xpt_register_async(AC_FOUND_DEVICE, cdasync, NULL, NULL);
if (status != CAM_REQ_CMP) {
printf("cd: Failed to attach master async callback "
"due to status 0x%x!\n", status);
}
}
/*
* Callback from GEOM, called when it has finished cleaning up its
* resources.
*/
static void
cddiskgonecb(struct disk *dp)
{
struct cam_periph *periph;
periph = (struct cam_periph *)dp->d_drv1;
cam_periph_release(periph);
}
static void
cdoninvalidate(struct cam_periph *periph)
{
struct cd_softc *softc;
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
/*
* De-register any async callbacks.
*/
xpt_register_async(0, cdasync, periph, periph->path);
softc->flags |= CD_FLAG_INVALID;
/*
* Return all queued I/O with ENXIO.
* XXX Handle any transactions queued to the card
* with XPT_ABORT_CCB.
*/
bioq_flush(&softc->bio_queue, NULL, ENXIO);
disk_gone(softc->disk);
}
static void
cdcleanup(struct cam_periph *periph)
{
struct cd_softc *softc;
softc = (struct cd_softc *)periph->softc;
cam_periph_unlock(periph);
if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
&& sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
xpt_print(periph->path, "can't remove sysctl context\n");
}
callout_drain(&softc->mediapoll_c);
disk_destroy(softc->disk);
free(softc, M_DEVBUF);
cam_periph_lock(periph);
}
static void
cdasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg)
{
struct cam_periph *periph;
struct cd_softc *softc;
periph = (struct cam_periph *)callback_arg;
switch (code) {
case AC_FOUND_DEVICE:
{
struct ccb_getdev *cgd;
cam_status status;
cgd = (struct ccb_getdev *)arg;
if (cgd == NULL)
break;
if (cgd->protocol != PROTO_SCSI)
break;
if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
break;
if (SID_TYPE(&cgd->inq_data) != T_CDROM
&& SID_TYPE(&cgd->inq_data) != T_WORM)
break;
/*
* Allocate a peripheral instance for
* this device and start the probe
* process.
*/
status = cam_periph_alloc(cdregister, cdoninvalidate,
cdcleanup, cdstart,
"cd", CAM_PERIPH_BIO,
path, cdasync,
AC_FOUND_DEVICE, cgd);
if (status != CAM_REQ_CMP
&& status != CAM_REQ_INPROG)
printf("cdasync: Unable to attach new device "
"due to status 0x%x\n", status);
return;
}
case AC_UNIT_ATTENTION:
{
union ccb *ccb;
int error_code, sense_key, asc, ascq;
softc = (struct cd_softc *)periph->softc;
ccb = (union ccb *)arg;
/*
* Handle all media change UNIT ATTENTIONs except
* our own, as they will be handled by cderror().
*/
if (xpt_path_periph(ccb->ccb_h.path) != periph &&
scsi_extract_sense_ccb(ccb,
&error_code, &sense_key, &asc, &ascq)) {
if (asc == 0x28 && ascq == 0x00)
disk_media_changed(softc->disk, M_NOWAIT);
}
break;
}
case AC_SCSI_AEN:
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
if (softc->state == CD_STATE_NORMAL && !softc->tur) {
if (cam_periph_acquire(periph) == 0) {
softc->tur = 1;
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
}
}
/* FALLTHROUGH */
case AC_SENT_BDR:
case AC_BUS_RESET:
{
struct ccb_hdr *ccbh;
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
/*
* Don't fail on the expected unit attention
* that will occur.
*/
softc->flags |= CD_FLAG_RETRY_UA;
LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
ccbh->ccb_state |= CD_CCB_RETRY_UA;
break;
}
default:
break;
}
cam_periph_async(periph, code, path, arg);
}
static void
cdsysctlinit(void *context, int pending)
{
struct cam_periph *periph;
struct cd_softc *softc;
char tmpstr[32], tmpstr2[16];
periph = (struct cam_periph *)context;
if (cam_periph_acquire(periph) != 0)
return;
softc = (struct cd_softc *)periph->softc;
snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
sysctl_ctx_init(&softc->sysctl_ctx);
cam_periph_lock(periph);
softc->flags |= CD_FLAG_SCTX_INIT;
cam_periph_unlock(periph);
softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
tmpstr2, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, tmpstr,
"device_index");
if (softc->sysctl_tree == NULL) {
printf("cdsysctlinit: unable to allocate sysctl tree\n");
cam_periph_release(periph);
return;
}
/*
* Now register the sysctl handler, so the user can the value on
* the fly.
*/
SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
OID_AUTO, "minimum_cmd_size",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
&softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
"Minimum CDB size");
cam_periph_release(periph);
}
/*
* We have a handler function for this so we can check the values when the
* user sets them, instead of every time we look at them.
*/
static int
cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
{
int error, value;
value = *(int *)arg1;
error = sysctl_handle_int(oidp, &value, 0, req);
if ((error != 0)
|| (req->newptr == NULL))
return (error);
/*
* The only real values we can have here are 6 or 10. I don't
* really forsee having 12 be an option at any time in the future.
* So if the user sets something less than or equal to 6, we'll set
* it to 6. If he sets something greater than 6, we'll set it to 10.
*
* I suppose we could just return an error here for the wrong values,
* but I don't think it's necessary to do so, as long as we can
* determine the user's intent without too much trouble.
*/
if (value < 6)
value = 6;
else if (value > 6)
value = 10;
*(int *)arg1 = value;
return (0);
}
static cam_status
cdregister(struct cam_periph *periph, void *arg)
{
struct cd_softc *softc;
struct ccb_pathinq cpi;
struct ccb_getdev *cgd;
char tmpstr[80];
caddr_t match;
cgd = (struct ccb_getdev *)arg;
if (cgd == NULL) {
printf("cdregister: no getdev CCB, can't register device\n");
return(CAM_REQ_CMP_ERR);
}
softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,
M_NOWAIT | M_ZERO);
if (softc == NULL) {
printf("cdregister: Unable to probe new device. "
"Unable to allocate softc\n");
return(CAM_REQ_CMP_ERR);
}
LIST_INIT(&softc->pending_ccbs);
STAILQ_INIT(&softc->mode_queue);
softc->state = CD_STATE_PROBE;
bioq_init(&softc->bio_queue);
if (SID_IS_REMOVABLE(&cgd->inq_data))
softc->flags |= CD_FLAG_DISC_REMOVABLE;
periph->softc = softc;
softc->periph = periph;
/*
* See if this device has any quirks.
*/
match = cam_quirkmatch((caddr_t)&cgd->inq_data,
(caddr_t)cd_quirk_table,
nitems(cd_quirk_table),
sizeof(*cd_quirk_table), scsi_inquiry_match);
if (match != NULL)
softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
else
softc->quirks = CD_Q_NONE;
/* Check if the SIM does not want 6 byte commands */
xpt_path_inq(&cpi, periph->path);
if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
softc->quirks |= CD_Q_10_BYTE_ONLY;
TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
/* The default is 6 byte commands, unless quirked otherwise */
if (softc->quirks & CD_Q_10_BYTE_ONLY)
softc->minimum_command_size = 10;
else
softc->minimum_command_size = 6;
/*
* Take a reference on the periph while cdstart is called to finish the
* probe. The reference will be dropped in cddone at the end of probe.
*/
(void)cam_periph_acquire(periph);
cam_periph_unlock(periph);
/*
* Load the user's default, if any.
*/
snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
periph->unit_number);
TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
/* 6 and 10 are the only permissible values here. */
if (softc->minimum_command_size < 6)
softc->minimum_command_size = 6;
else if (softc->minimum_command_size > 6)
softc->minimum_command_size = 10;
/*
* We need to register the statistics structure for this device,
* but we don't have the blocksize yet for it. So, we register
* the structure and indicate that we don't have the blocksize
* yet. Unlike other SCSI peripheral drivers, we explicitly set
* the device type here to be CDROM, rather than just ORing in
* the device type. This is because this driver can attach to either
* CDROM or WORM devices, and we want this peripheral driver to
* show up in the devstat list as a CD peripheral driver, not a
* WORM peripheral driver. WORM drives will also have the WORM
* driver attached to them.
*/
softc->disk = disk_alloc();
softc->disk->d_devstat = devstat_new_entry("cd",
periph->unit_number, 0,
DEVSTAT_BS_UNAVAILABLE,
DEVSTAT_TYPE_CDROM |
XPORT_DEVSTAT_TYPE(cpi.transport),
DEVSTAT_PRIORITY_CD);
softc->disk->d_open = cdopen;
softc->disk->d_close = cdclose;
softc->disk->d_strategy = cdstrategy;
softc->disk->d_gone = cddiskgonecb;
softc->disk->d_ioctl = cdioctl;
softc->disk->d_name = "cd";
cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
cgd->inq_data.product, sizeof(cgd->inq_data.product),
sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
softc->disk->d_unit = periph->unit_number;
softc->disk->d_drv1 = periph;
if (cpi.maxio == 0)
softc->disk->d_maxsize = DFLTPHYS; /* traditional default */
else if (cpi.maxio > maxphys)
softc->disk->d_maxsize = maxphys; /* for safety */
else
softc->disk->d_maxsize = cpi.maxio;
softc->disk->d_flags = 0;
softc->disk->d_hba_vendor = cpi.hba_vendor;
softc->disk->d_hba_device = cpi.hba_device;
softc->disk->d_hba_subvendor = cpi.hba_subvendor;
softc->disk->d_hba_subdevice = cpi.hba_subdevice;
snprintf(softc->disk->d_attachment, sizeof(softc->disk->d_attachment),
"%s%d", cpi.dev_name, cpi.unit_number);
cam_periph_lock(periph);
/*
* Add an async callback so that we get
* notified if this device goes away.
*/
xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
AC_SCSI_AEN | AC_UNIT_ATTENTION, cdasync, periph, periph->path);
/*
* Schedule a periodic media polling events.
*/
callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
if ((softc->flags & CD_FLAG_DISC_REMOVABLE) &&
(cgd->inq_flags & SID_AEN) == 0 &&
cd_poll_period != 0) {
callout_reset_sbt(&softc->mediapoll_c, cd_poll_period * SBT_1S,
0, cdmediapoll, periph, C_PREL(1));
}
/* Released after probe when disk_create() call pass it to GEOM. */
cam_periph_hold_boot(periph);
xpt_schedule(periph, CAM_PRIORITY_DEV);
return(CAM_REQ_CMP);
}
static int
cdopen(struct disk *dp)
{
struct cam_periph *periph;
struct cd_softc *softc;
int error;
periph = (struct cam_periph *)dp->d_drv1;
softc = (struct cd_softc *)periph->softc;
if (cam_periph_acquire(periph) != 0)
return(ENXIO);
cam_periph_lock(periph);
if (softc->flags & CD_FLAG_INVALID) {
cam_periph_release_locked(periph);
cam_periph_unlock(periph);
return(ENXIO);
}
if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
cam_periph_release_locked(periph);
cam_periph_unlock(periph);
return (error);
}
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
("cdopen\n"));
/*
* Check for media, and set the appropriate flags. We don't bail
* if we don't have media, but then we don't allow anything but the
* CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
*/
cdcheckmedia(periph, /*do_wait*/ 1);
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
cam_periph_unhold(periph);
cam_periph_unlock(periph);
return (0);
}
static int
cdclose(struct disk *dp)
{
struct cam_periph *periph;
struct cd_softc *softc;
periph = (struct cam_periph *)dp->d_drv1;
softc = (struct cd_softc *)periph->softc;
cam_periph_lock(periph);
if (cam_periph_hold(periph, PRIBIO) != 0) {
cam_periph_unlock(periph);
cam_periph_release(periph);
return (0);
}
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
("cdclose\n"));
if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
cdprevent(periph, PR_ALLOW);
/*
* Since we're closing this CD, mark the blocksize as unavailable.
* It will be marked as available when the CD is opened again.
*/
softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
/*
* We'll check the media and toc again at the next open().
*/
softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
cam_periph_unhold(periph);
cam_periph_release_locked(periph);
cam_periph_unlock(periph);
return (0);
}
static int
cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
u_int32_t cam_flags,
u_int32_t sense_flags),
u_int32_t cam_flags, u_int32_t sense_flags)
{
struct cd_softc *softc;
struct cam_periph *periph;
int error;
periph = xpt_path_periph(ccb->ccb_h.path);
softc = (struct cd_softc *)periph->softc;
error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
softc->disk->d_devstat);
return(error);
}
/*
* Actually translate the requested transfer into one the physical driver
* can understand. The transfer is described by a buf and will include
* only one physical transfer.
*/
static void
cdstrategy(struct bio *bp)
{
struct cam_periph *periph;
struct cd_softc *softc;
periph = (struct cam_periph *)bp->bio_disk->d_drv1;
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
("cdstrategy(%p)\n", bp));
softc = (struct cd_softc *)periph->softc;
/*
* If the device has been made invalid, error out
*/
if ((softc->flags & CD_FLAG_INVALID)) {
cam_periph_unlock(periph);
biofinish(bp, NULL, ENXIO);
return;
}
/*
* Place it in the queue of disk activities for this disk
*/
bioq_disksort(&softc->bio_queue, bp);
/*
* If we don't know that we have valid media, schedule the media
* check first. The I/O will get executed after the media check.
*/
if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
cdcheckmedia(periph, /*do_wait*/ 0);
else
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
cam_periph_unlock(periph);
return;
}
static void
cdstart(struct cam_periph *periph, union ccb *start_ccb)
{
struct cd_softc *softc;
struct bio *bp;
struct ccb_scsiio *csio;
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
switch (softc->state) {
case CD_STATE_NORMAL:
{
bp = bioq_first(&softc->bio_queue);
if (bp == NULL) {
if (softc->tur) {
softc->tur = 0;
csio = &start_ccb->csio;
scsi_test_unit_ready(csio,
/*retries*/ cd_retry_count,
cddone,
MSG_SIMPLE_Q_TAG,
SSD_FULL_SIZE,
cd_timeout);
start_ccb->ccb_h.ccb_bp = NULL;
start_ccb->ccb_h.ccb_state = CD_CCB_TUR;
xpt_action(start_ccb);
} else
xpt_release_ccb(start_ccb);
} else {
if (softc->tur) {
softc->tur = 0;
cam_periph_release_locked(periph);
}
bioq_remove(&softc->bio_queue, bp);
if ((bp->bio_cmd != BIO_READ) &&
(bp->bio_cmd != BIO_WRITE)) {
biofinish(bp, NULL, EOPNOTSUPP);
xpt_release_ccb(start_ccb);
return;
}
scsi_read_write(&start_ccb->csio,
/*retries*/ cd_retry_count,
/* cbfcnp */ cddone,
MSG_SIMPLE_Q_TAG,
/* read */bp->bio_cmd == BIO_READ ?
SCSI_RW_READ : SCSI_RW_WRITE,
/* byte2 */ 0,
/* minimum_cmd_size */ 10,
/* lba */ bp->bio_offset /
softc->params.blksize,
bp->bio_bcount / softc->params.blksize,
/* data_ptr */ bp->bio_data,
/* dxfer_len */ bp->bio_bcount,
/* sense_len */ cd_retry_count ?
SSD_FULL_SIZE : SF_NO_PRINT,
/* timeout */ cd_timeout);
/* Use READ CD command for audio tracks. */
if (softc->params.blksize == 2352) {
start_ccb->csio.cdb_io.cdb_bytes[0] = READ_CD;
start_ccb->csio.cdb_io.cdb_bytes[9] = 0xf8;
start_ccb->csio.cdb_io.cdb_bytes[10] = 0;
start_ccb->csio.cdb_io.cdb_bytes[11] = 0;
start_ccb->csio.cdb_len = 12;
}
start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
LIST_INSERT_HEAD(&softc->pending_ccbs,
&start_ccb->ccb_h, periph_links.le);
softc->outstanding_cmds++;
/* We expect a unit attention from this device */
if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
softc->flags &= ~CD_FLAG_RETRY_UA;
}
start_ccb->ccb_h.ccb_bp = bp;
bp = bioq_first(&softc->bio_queue);
xpt_action(start_ccb);
}
if (bp != NULL || softc->tur) {
/* Have more work to do, so ensure we stay scheduled */
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
}
break;
}
case CD_STATE_PROBE:
case CD_STATE_MEDIA_SIZE:
{
struct scsi_read_capacity_data *rcap;
rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
M_SCSICD, M_NOWAIT | M_ZERO);
if (rcap == NULL) {
xpt_print(periph->path,
"%s: Couldn't malloc read_capacity data\n",
__func__);
xpt_release_ccb(start_ccb);
/*
* We can't probe because we can't allocate memory,
* so invalidate the peripheral. The system probably
* has larger problems at this stage. If we've
* already probed (and are re-probing capacity), we
* don't need to invalidate.
*
* XXX KDM need to reset probe state and kick out
* pending I/O.
*/
if (softc->state == CD_STATE_PROBE)
cam_periph_invalidate(periph);
break;
}
/*
* Set the default capacity and sector size to something that
* GEOM can handle. This will get reset when a read capacity
* completes successfully.
*/
softc->disk->d_sectorsize = 2048;
softc->disk->d_mediasize = 0;
csio = &start_ccb->csio;
scsi_read_capacity(csio,
/*retries*/ cd_retry_count,
cddone,
MSG_SIMPLE_Q_TAG,
rcap,
SSD_FULL_SIZE,
/*timeout*/20000);
start_ccb->ccb_h.ccb_bp = NULL;
if (softc->state == CD_STATE_PROBE)
start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
else
start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_SIZE;
xpt_action(start_ccb);
break;
}
case CD_STATE_MEDIA_ALLOW:
case CD_STATE_MEDIA_PREVENT:
{
/*
* If the CD is already locked, we don't need to do this.
* Move on to the capacity check.
*/
if (softc->state == CD_STATE_MEDIA_PREVENT
&& (softc->flags & CD_FLAG_DISC_LOCKED) != 0) {
softc->state = CD_STATE_MEDIA_SIZE;
xpt_release_ccb(start_ccb);
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
break;
}
scsi_prevent(&start_ccb->csio,
/*retries*/ cd_retry_count,
/*cbfcnp*/ cddone,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*action*/ (softc->state == CD_STATE_MEDIA_ALLOW) ?
PR_ALLOW : PR_PREVENT,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ 60000);
start_ccb->ccb_h.ccb_bp = NULL;
if (softc->state == CD_STATE_MEDIA_ALLOW)
start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_ALLOW;
else
start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_PREVENT;
xpt_action(start_ccb);
break;
}
case CD_STATE_MEDIA_TOC_HDR: {
struct ioc_toc_header *toch;
bzero(&softc->toc, sizeof(softc->toc));
toch = &softc->toc.header;
scsi_read_toc(&start_ccb->csio,
/*retries*/ cd_retry_count,
/*cbfcnp*/ cddone,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*byte1_flags*/ 0,
/*format*/ SRTOC_FORMAT_TOC,
/*track*/ 0,
/*data_ptr*/ (uint8_t *)toch,
/*dxfer_len*/ sizeof(*toch),
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ 50000);
start_ccb->ccb_h.ccb_bp = NULL;
start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_HDR;
xpt_action(start_ccb);
break;
}
case CD_STATE_MEDIA_TOC_FULL: {
bzero(&softc->toc, sizeof(softc->toc));
scsi_read_toc(&start_ccb->csio,
/*retries*/ cd_retry_count,
/*cbfcnp*/ cddone,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*byte1_flags*/ 0,
/*format*/ SRTOC_FORMAT_TOC,
/*track*/ 0,
/*data_ptr*/ (uint8_t *)&softc->toc,
/*dxfer_len*/ softc->toc_read_len ?
softc->toc_read_len :
sizeof(softc->toc),
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ 50000);
start_ccb->ccb_h.ccb_bp = NULL;
start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_FULL;
xpt_action(start_ccb);
break;
}
case CD_STATE_MEDIA_TOC_LEAD: {
struct cd_toc_single *leadout;
leadout = &softc->leadout;
bzero(leadout, sizeof(*leadout));
scsi_read_toc(&start_ccb->csio,
/*retries*/ cd_retry_count,
/*cbfcnp*/ cddone,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*byte1_flags*/ CD_MSF,
/*format*/ SRTOC_FORMAT_TOC,
/*track*/ LEADOUT,
/*data_ptr*/ (uint8_t *)leadout,
/*dxfer_len*/ sizeof(*leadout),
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ 50000);
start_ccb->ccb_h.ccb_bp = NULL;
start_ccb->ccb_h.ccb_state = CD_CCB_MEDIA_TOC_LEAD;
xpt_action(start_ccb);
break;
}
}
}
static void
cddone(struct cam_periph *periph, union ccb *done_ccb)
{
struct cd_softc *softc;
struct ccb_scsiio *csio;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
csio = &done_ccb->csio;
switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
case CD_CCB_BUFFER_IO:
{
struct bio *bp;
int error;
bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
error = 0;
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
int sf;
if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
sf = SF_RETRY_UA;
else
sf = 0;
error = cderror(done_ccb, CAM_RETRY_SELTO, sf);
if (error == ERESTART) {
/*
* A retry was scheuled, so
* just return.
*/
return;
}
}
if (error != 0) {
xpt_print(periph->path,
"cddone: got error %#x back\n", error);
bioq_flush(&softc->bio_queue, NULL, EIO);
bp->bio_resid = bp->bio_bcount;
bp->bio_error = error;
bp->bio_flags |= BIO_ERROR;
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
} else {
bp->bio_resid = csio->resid;
bp->bio_error = 0;
if (bp->bio_resid != 0) {
/*
* Short transfer ???
* XXX: not sure this is correct for partial
* transfers at EOM
*/
bp->bio_flags |= BIO_ERROR;
}
}
LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
softc->outstanding_cmds--;
biofinish(bp, NULL, 0);
break;
}
case CD_CCB_PROBE:
{
struct scsi_read_capacity_data *rdcap;
char *announce_buf;
struct cd_params *cdp;
int error;
cdp = &softc->params;
announce_buf = softc->announce_temp;
bzero(announce_buf, CD_ANNOUNCETMP_SZ);
rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
cdp->blksize = scsi_4btoul (rdcap->length);
/*
* Retry any UNIT ATTENTION type errors. They
* are expected at boot.
*/
if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP ||
(error = cderror(done_ccb, CAM_RETRY_SELTO,
SF_RETRY_UA | SF_NO_PRINT)) == 0) {
snprintf(announce_buf, CD_ANNOUNCETMP_SZ,
"%juMB (%ju %u byte sectors)",
((uintmax_t)cdp->disksize * cdp->blksize) /
(1024 * 1024),
(uintmax_t)cdp->disksize, cdp->blksize);
} else {
if (error == ERESTART) {
/*
* A retry was scheuled, so
* just return.
*/
return;
} else {
int asc, ascq;
int sense_key, error_code;
int have_sense;
cam_status status;
struct ccb_getdev cgd;
/* Don't wedge this device's queue */
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
status = done_ccb->ccb_h.status;
bzero(&cgd, sizeof(cgd));
xpt_setup_ccb(&cgd.ccb_h,
done_ccb->ccb_h.path,
CAM_PRIORITY_NORMAL);
cgd.ccb_h.func_code = XPT_GDEV_TYPE;
xpt_action((union ccb *)&cgd);
if (scsi_extract_sense_ccb(done_ccb,
&error_code, &sense_key, &asc, &ascq))
have_sense = TRUE;
else
have_sense = FALSE;
/*
* Attach to anything that claims to be a
* CDROM or WORM device, as long as it
* doesn't return a "Logical unit not
* supported" (0x25) error.
*/
if ((have_sense) && (asc != 0x25)
&& (error_code == SSD_CURRENT_ERROR
|| error_code == SSD_DESC_CURRENT_ERROR)) {
const char *sense_key_desc;
const char *asc_desc;
scsi_sense_desc(sense_key, asc, ascq,
&cgd.inq_data,
&sense_key_desc,
&asc_desc);
snprintf(announce_buf,
CD_ANNOUNCETMP_SZ,
"Attempt to query device "
"size failed: %s, %s",
sense_key_desc,
asc_desc);
} else if ((have_sense == 0)
&& ((status & CAM_STATUS_MASK) ==
CAM_SCSI_STATUS_ERROR)
&& (csio->scsi_status ==
SCSI_STATUS_BUSY)) {
snprintf(announce_buf,
CD_ANNOUNCETMP_SZ,
"Attempt to query device "
"size failed: SCSI Status: %s",
scsi_status_string(csio));
} else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
/*
* We only print out an error for
* CDROM type devices. For WORM
* devices, we don't print out an
* error since a few WORM devices
* don't support CDROM commands.
* If we have sense information, go
* ahead and print it out.
* Otherwise, just say that we
* couldn't attach.
*/
/*
* Just print out the error, not
* the full probe message, when we
* don't attach.
*/
if (have_sense)
scsi_sense_print(
&done_ccb->csio);
else {
xpt_print(periph->path,
"got CAM status %#x\n",
done_ccb->ccb_h.status);
}
xpt_print(periph->path, "fatal error, "
"failed to attach to device\n");
/*
* Invalidate this peripheral.
*/
cam_periph_invalidate(periph);
announce_buf = NULL;
} else {
/*
* Invalidate this peripheral.
*/
cam_periph_invalidate(periph);
announce_buf = NULL;
}
}
}
free(rdcap, M_SCSICD);
if (announce_buf != NULL) {
struct sbuf sb;
sbuf_new(&sb, softc->announce_buf, CD_ANNOUNCE_SZ,
SBUF_FIXEDLEN);
xpt_announce_periph_sbuf(periph, &sb, announce_buf);
xpt_announce_quirks_sbuf(periph, &sb, softc->quirks,
CD_Q_BIT_STRING);
sbuf_finish(&sb);
sbuf_putbuf(&sb);
/*
* Create our sysctl variables, now that we know
* we have successfully attached.
*/
taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
}
softc->state = CD_STATE_NORMAL;
/*
* Since our peripheral may be invalidated by an error
* above or an external event, we must release our CCB
* before releasing the probe lock on the peripheral.
* The peripheral will only go away once the last lock
* is removed, and we need it around for the CCB release
* operation.
*/
xpt_release_ccb(done_ccb);
/*
* We'll release this reference once GEOM calls us back via
* cddiskgonecb(), telling us that our provider has been freed.
*/
if (cam_periph_acquire(periph) == 0)
disk_create(softc->disk, DISK_VERSION);
cam_periph_release_boot(periph);
cam_periph_release_locked(periph);
return;
}
case CD_CCB_TUR:
{
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if (cderror(done_ccb, CAM_RETRY_SELTO,
SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
ERESTART)
return;
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
}
xpt_release_ccb(done_ccb);
cam_periph_release_locked(periph);
return;
}
case CD_CCB_MEDIA_ALLOW:
case CD_CCB_MEDIA_PREVENT:
{
int error;
int is_prevent;
error = 0;
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
error = cderror(done_ccb, CAM_RETRY_SELTO,
SF_RETRY_UA | SF_NO_PRINT);
}
if (error == ERESTART)
return;
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
/*
* Note that just like the original cdcheckmedia(), we do
* a prevent without failing the whole operation if the
* prevent fails. We try, but keep going if it doesn't
* work.
*/
if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
CD_CCB_MEDIA_PREVENT)
is_prevent = 1;
else
is_prevent = 0;
xpt_release_ccb(done_ccb);
if (is_prevent != 0) {
if (error == 0)
softc->flags |= CD_FLAG_DISC_LOCKED;
else
softc->flags &= ~CD_FLAG_DISC_LOCKED;
softc->state = CD_STATE_MEDIA_SIZE;
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
} else {
if (error == 0)
softc->flags &= ~CD_FLAG_DISC_LOCKED;
softc->state = CD_STATE_NORMAL;
if (bioq_first(&softc->bio_queue) != NULL)
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
}
return;
}
case CD_CCB_MEDIA_SIZE:
{
struct scsi_read_capacity_data *rdcap;
int error;
error = 0;
if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
error = cderror(done_ccb, CAM_RETRY_SELTO,
SF_RETRY_UA | SF_NO_PRINT);
}
if (error == ERESTART)
return;
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
if (error == 0) {
softc->params.disksize =scsi_4btoul(rdcap->addr) + 1;
softc->params.blksize = scsi_4btoul(rdcap->length);
/* Make sure we got at least some block size. */
if (softc->params.blksize == 0)
error = EIO;
/*
* SCSI-3 mandates that the reported blocksize shall be
* 2048. Older drives sometimes report funny values,
* trim it down to 2048, or other parts of the kernel
* will get confused.
*
* XXX we leave drives alone that might report 512
* bytes, as well as drives reporting more weird
* sizes like perhaps 4K.
*/
if (softc->params.blksize > 2048
&& softc->params.blksize <= 2352)
softc->params.blksize = 2048;
}
free(rdcap, M_SCSICD);
if (error == 0) {
softc->disk->d_sectorsize = softc->params.blksize;
softc->disk->d_mediasize =
(off_t)softc->params.blksize *
softc->params.disksize;
softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
softc->state = CD_STATE_MEDIA_TOC_HDR;
} else {
softc->flags &= ~(CD_FLAG_VALID_MEDIA |
CD_FLAG_VALID_TOC);
bioq_flush(&softc->bio_queue, NULL, EINVAL);
softc->state = CD_STATE_MEDIA_ALLOW;
cdmediaprobedone(periph);
}
xpt_release_ccb(done_ccb);
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
return;
}
case CD_CCB_MEDIA_TOC_HDR:
case CD_CCB_MEDIA_TOC_FULL:
case CD_CCB_MEDIA_TOC_LEAD:
{
int error;
struct ioc_toc_header *toch;
int num_entries;
int cdindex;
error = 0;
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
error = cderror(done_ccb, CAM_RETRY_SELTO,
SF_RETRY_UA | SF_NO_PRINT);
}
if (error == ERESTART)
return;
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
/*
* We will get errors here for media that doesn't have a table
* of contents. According to the MMC-3 spec: "When a Read
* TOC/PMA/ATIP command is presented for a DDCD/CD-R/RW media,
* where the first TOC has not been recorded (no complete
* session) and the Format codes 0000b, 0001b, or 0010b are
* specified, this command shall be rejected with an INVALID
* FIELD IN CDB. Devices that are not capable of reading an
* incomplete session on DDC/CD-R/RW media shall report
* CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
*
* So this isn't fatal if we can't read the table of contents,
* it just means that the user won't be able to issue the
* play tracks ioctl, and likely lots of other stuff won't
* work either. They need to burn the CD before we can do
* a whole lot with it. So we don't print anything here if
* we get an error back.
*
* We also bail out if the drive doesn't at least give us
* the full TOC header.
*/
if ((error != 0)
|| ((csio->dxfer_len - csio->resid) <
sizeof(struct ioc_toc_header))) {
softc->flags &= ~CD_FLAG_VALID_TOC;
bzero(&softc->toc, sizeof(softc->toc));
/*
* Failing the TOC read is not an error.
*/
softc->state = CD_STATE_NORMAL;
xpt_release_ccb(done_ccb);
cdmediaprobedone(periph);
/*
* Go ahead and schedule I/O execution if there is
* anything in the queue. It'll probably get
* kicked out with an error.
*/
if (bioq_first(&softc->bio_queue) != NULL)
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
return;
}
/*
* Note that this is NOT the storage location used for the
* leadout!
*/
toch = &softc->toc.header;
if (softc->quirks & CD_Q_BCD_TRACKS) {
toch->starting_track = bcd2bin(toch->starting_track);
toch->ending_track = bcd2bin(toch->ending_track);
}
/* Number of TOC entries, plus leadout */
num_entries = toch->ending_track - toch->starting_track + 2;
cdindex = toch->starting_track + num_entries - 1;
if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
CD_CCB_MEDIA_TOC_HDR) {
if (num_entries <= 0 ||
num_entries > nitems(softc->toc.entries)) {
softc->flags &= ~CD_FLAG_VALID_TOC;
bzero(&softc->toc, sizeof(softc->toc));
/*
* Failing the TOC read is not an error.
*/
softc->state = CD_STATE_NORMAL;
xpt_release_ccb(done_ccb);
cdmediaprobedone(periph);
/*
* Go ahead and schedule I/O execution if
* there is anything in the queue. It'll
* probably get kicked out with an error.
*/
if (bioq_first(&softc->bio_queue) != NULL)
xpt_schedule(periph,
CAM_PRIORITY_NORMAL);
} else {
softc->toc_read_len = num_entries *
sizeof(struct cd_toc_entry);
softc->toc_read_len += sizeof(*toch);
softc->state = CD_STATE_MEDIA_TOC_FULL;
xpt_release_ccb(done_ccb);
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
}
return;
} else if ((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
CD_CCB_MEDIA_TOC_LEAD) {
struct cd_toc_single *leadout;
leadout = (struct cd_toc_single *)csio->data_ptr;
softc->toc.entries[cdindex - toch->starting_track] =
leadout->entry;
} else if (((done_ccb->ccb_h.ccb_state & CD_CCB_TYPE_MASK) ==
CD_CCB_MEDIA_TOC_FULL)
&& (cdindex == toch->ending_track + 1)) {
/*
* XXX KDM is this necessary? Probably only if the
* drive doesn't return leadout information with the
* table of contents.
*/
softc->state = CD_STATE_MEDIA_TOC_LEAD;
xpt_release_ccb(done_ccb);
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
return;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
for (cdindex = 0; cdindex < num_entries - 1; cdindex++){
softc->toc.entries[cdindex].track =
bcd2bin(softc->toc.entries[cdindex].track);
}
}
softc->flags |= CD_FLAG_VALID_TOC;
/* If the first track is audio, correct sector size. */
if ((softc->toc.entries[0].control & 4) == 0) {
softc->disk->d_sectorsize =softc->params.blksize = 2352;
softc->disk->d_mediasize =
(off_t)softc->params.blksize *
softc->params.disksize;
}
softc->state = CD_STATE_NORMAL;
/*
* We unconditionally (re)set the blocksize each time the
* CD device is opened. This is because the CD can change,
* and therefore the blocksize might change.
* XXX problems here if some slice or partition is still
* open with the old size?
*/
if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE)!=0)
softc->disk->d_devstat->flags &=
~DEVSTAT_BS_UNAVAILABLE;
softc->disk->d_devstat->block_size = softc->params.blksize;
xpt_release_ccb(done_ccb);
cdmediaprobedone(periph);
if (bioq_first(&softc->bio_queue) != NULL)
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
return;
}
default:
break;
}
xpt_release_ccb(done_ccb);
}
static union cd_pages *
cdgetpage(struct cd_mode_params *mode_params)
{
union cd_pages *page;
if (mode_params->cdb_size == 10)
page = (union cd_pages *)find_mode_page_10(
(struct scsi_mode_header_10 *)mode_params->mode_buf);
else
page = (union cd_pages *)find_mode_page_6(
(struct scsi_mode_header_6 *)mode_params->mode_buf);
return (page);
}
static int
cdgetpagesize(int page_num)
{
u_int i;
for (i = 0; i < nitems(cd_page_size_table); i++) {
if (cd_page_size_table[i].page == page_num)
return (cd_page_size_table[i].page_size);
}
return (-1);
}
static struct cd_toc_entry *
te_data_get_ptr(void *irtep, u_long cmd)
{
union {
struct ioc_read_toc_entry irte;
#ifdef COMPAT_FREEBSD32
struct ioc_read_toc_entry32 irte32;
#endif
} *irteup;
irteup = irtep;
switch (IOCPARM_LEN(cmd)) {
case sizeof(irteup->irte):
return (irteup->irte.data);
#ifdef COMPAT_FREEBSD32
case sizeof(irteup->irte32):
return ((struct cd_toc_entry *)(uintptr_t)irteup->irte32.data);
#endif
default:
panic("Unhandled ioctl command %ld", cmd);
}
}
static int
cdioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td)
{
struct cam_periph *periph;
struct cd_softc *softc;
int error = 0;
periph = (struct cam_periph *)dp->d_drv1;
cam_periph_lock(periph);
softc = (struct cd_softc *)periph->softc;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
("cdioctl(%#lx)\n", cmd));
if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
cam_periph_unlock(periph);
cam_periph_release(periph);
return (error);
}
/*
* If we don't have media loaded, check for it. If still don't
* have media loaded, we can only do a load or eject.
*
* We only care whether media is loaded if this is a cd-specific ioctl
* (thus the IOCGROUP check below). Note that this will break if
* anyone adds any ioctls into the switch statement below that don't
* have their ioctl group set to 'c'.
*/
if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
&& ((cmd != CDIOCCLOSE)
&& (cmd != CDIOCEJECT))
&& (IOCGROUP(cmd) == 'c')) {
error = cdcheckmedia(periph, /*do_wait*/ 1);
if (error != 0) {
cam_periph_unhold(periph);
cam_periph_unlock(periph);
return (error);
}
}
/*
* Drop the lock here so later mallocs can use WAITOK. The periph
* is essentially locked still with the cam_periph_hold call above.
*/
cam_periph_unlock(periph);
switch (cmd) {
case CDIOCPLAYTRACKS:
{
struct ioc_play_track *args
= (struct ioc_play_track *) addr;
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCPLAYTRACKS\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.flags &= ~CD_PA_SOTC;
page->audio.flags |= CD_PA_IMMED;
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
if (error) {
cam_periph_unlock(periph);
break;
}
/*
* This was originally implemented with the PLAY
* AUDIO TRACK INDEX command, but that command was
* deprecated after SCSI-2. Most (all?) SCSI CDROM
* drives support it but ATAPI and ATAPI-derivative
* drives don't seem to support it. So we keep a
* cache of the table of contents and translate
* track numbers to MSF format.
*/
if (softc->flags & CD_FLAG_VALID_TOC) {
union msf_lba *sentry, *eentry;
struct ioc_toc_header *th;
int st, et;
th = &softc->toc.header;
if (args->end_track < th->ending_track + 1)
args->end_track++;
if (args->end_track > th->ending_track + 1)
args->end_track = th->ending_track + 1;
st = args->start_track - th->starting_track;
et = args->end_track - th->starting_track;
if (st < 0 || et < 0 ||
st > th->ending_track - th->starting_track ||
et > th->ending_track - th->starting_track) {
error = EINVAL;
cam_periph_unlock(periph);
break;
}
sentry = &softc->toc.entries[st].addr;
eentry = &softc->toc.entries[et].addr;
error = cdplaymsf(periph,
sentry->msf.minute,
sentry->msf.second,
sentry->msf.frame,
eentry->msf.minute,
eentry->msf.second,
eentry->msf.frame);
} else {
/*
* If we don't have a valid TOC, try the
* play track index command. It is part of
* the SCSI-2 spec, but was removed in the
* MMC specs. ATAPI and ATAPI-derived
* drives don't support it.
*/
if (softc->quirks & CD_Q_BCD_TRACKS) {
args->start_track =
bin2bcd(args->start_track);
args->end_track =
bin2bcd(args->end_track);
}
error = cdplaytracks(periph,
args->start_track,
args->start_index,
args->end_track,
args->end_index);
}
cam_periph_unlock(periph);
}
break;
case CDIOCPLAYMSF:
{
struct ioc_play_msf *args
= (struct ioc_play_msf *) addr;
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCPLAYMSF\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.flags &= ~CD_PA_SOTC;
page->audio.flags |= CD_PA_IMMED;
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
if (error) {
cam_periph_unlock(periph);
break;
}
error = cdplaymsf(periph,
args->start_m,
args->start_s,
args->start_f,
args->end_m,
args->end_s,
args->end_f);
cam_periph_unlock(periph);
}
break;
case CDIOCPLAYBLOCKS:
{
struct ioc_play_blocks *args
= (struct ioc_play_blocks *) addr;
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCPLAYBLOCKS\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.flags &= ~CD_PA_SOTC;
page->audio.flags |= CD_PA_IMMED;
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
if (error) {
cam_periph_unlock(periph);
break;
}
error = cdplay(periph, args->blk, args->len);
cam_periph_unlock(periph);
}
break;
case CDIOCREADSUBCHANNEL:
{
struct ioc_read_subchannel *args
= (struct ioc_read_subchannel *) addr;
struct cd_sub_channel_info *data;
u_int32_t len = args->data_len;
data = malloc(sizeof(struct cd_sub_channel_info),
M_SCSICD, M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCREADSUBCHANNEL\n"));
if ((len > sizeof(struct cd_sub_channel_info)) ||
(len < sizeof(struct cd_sub_channel_header))) {
printf(
"scsi_cd: cdioctl: "
"cdioreadsubchannel: error, len=%d\n",
len);
error = EINVAL;
free(data, M_SCSICD);
cam_periph_unlock(periph);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS)
args->track = bin2bcd(args->track);
error = cdreadsubchannel(periph, args->address_format,
args->data_format, args->track, data, len);
if (error) {
free(data, M_SCSICD);
cam_periph_unlock(periph);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS)
data->what.track_info.track_number =
bcd2bin(data->what.track_info.track_number);
len = min(len, ((data->header.data_len[0] << 8) +
data->header.data_len[1] +
sizeof(struct cd_sub_channel_header)));
cam_periph_unlock(periph);
error = copyout(data, args->data, len);
free(data, M_SCSICD);
}
break;
case CDIOREADTOCHEADER:
{
struct ioc_toc_header *th;
th = malloc(sizeof(struct ioc_toc_header), M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOREADTOCHEADER\n"));
error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
sizeof (*th), /*sense_flags*/SF_NO_PRINT);
if (error) {
free(th, M_SCSICD);
cam_periph_unlock(periph);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
/* we are going to have to convert the BCD
* encoding on the cd to what is expected
*/
th->starting_track =
bcd2bin(th->starting_track);
th->ending_track = bcd2bin(th->ending_track);
}
th->len = ntohs(th->len);
bcopy(th, addr, sizeof(*th));
free(th, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOREADTOCENTRYS:
#ifdef COMPAT_FREEBSD32
case CDIOREADTOCENTRYS_32:
#endif
{
struct cd_tocdata *data;
struct cd_toc_single *lead;
struct ioc_read_toc_entry *te =
(struct ioc_read_toc_entry *) addr;
struct ioc_toc_header *th;
u_int32_t len, readlen, idx, num;
u_int32_t starting_track = te->starting_track;
data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
lead = malloc(sizeof(*lead), M_SCSICD, M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOREADTOCENTRYS\n"));
if (te->data_len < sizeof(struct cd_toc_entry)
|| (te->data_len % sizeof(struct cd_toc_entry)) != 0
|| (te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT)) {
error = EINVAL;
printf("scsi_cd: error in readtocentries, "
"returning EINVAL\n");
free(data, M_SCSICD);
free(lead, M_SCSICD);
cam_periph_unlock(periph);
break;
}
th = &data->header;
error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
sizeof (*th), /*sense_flags*/0);
if (error) {
free(data, M_SCSICD);
free(lead, M_SCSICD);
cam_periph_unlock(periph);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
/* we are going to have to convert the BCD
* encoding on the cd to what is expected
*/
th->starting_track =
bcd2bin(th->starting_track);
th->ending_track = bcd2bin(th->ending_track);
}
if (starting_track == 0)
starting_track = th->starting_track;
else if (starting_track == LEADOUT)
starting_track = th->ending_track + 1;
else if (starting_track < th->starting_track ||
starting_track > th->ending_track + 1) {
printf("scsi_cd: error in readtocentries, "
"returning EINVAL\n");
free(data, M_SCSICD);
free(lead, M_SCSICD);
cam_periph_unlock(periph);
error = EINVAL;
break;
}
/* calculate reading length without leadout entry */
readlen = (th->ending_track - starting_track + 1) *
sizeof(struct cd_toc_entry);
/* and with leadout entry */
len = readlen + sizeof(struct cd_toc_entry);
if (te->data_len < len) {
len = te->data_len;
if (readlen > len)
readlen = len;
}
if (len > sizeof(data->entries)) {
printf("scsi_cd: error in readtocentries, "
"returning EINVAL\n");
error = EINVAL;
free(data, M_SCSICD);
free(lead, M_SCSICD);
cam_periph_unlock(periph);
break;
}
num = len / sizeof(struct cd_toc_entry);
if (readlen > 0) {
error = cdreadtoc(periph, te->address_format,
starting_track,
(u_int8_t *)data,
readlen + sizeof (*th),
/*sense_flags*/0);
if (error) {
free(data, M_SCSICD);
free(lead, M_SCSICD);
cam_periph_unlock(periph);
break;
}
}
/* make leadout entry if needed */
idx = starting_track + num - 1;
if (softc->quirks & CD_Q_BCD_TRACKS)
th->ending_track = bcd2bin(th->ending_track);
if (idx == th->ending_track + 1) {
error = cdreadtoc(periph, te->address_format,
LEADOUT, (u_int8_t *)lead,
sizeof(*lead),
/*sense_flags*/0);
if (error) {
free(data, M_SCSICD);
free(lead, M_SCSICD);
cam_periph_unlock(periph);
break;
}
data->entries[idx - starting_track] =
lead->entry;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
for (idx = 0; idx < num - 1; idx++) {
data->entries[idx].track =
bcd2bin(data->entries[idx].track);
}
}
cam_periph_unlock(periph);
error = copyout(data->entries, te_data_get_ptr(te, cmd),
len);
free(data, M_SCSICD);
free(lead, M_SCSICD);
}
break;
case CDIOREADTOCENTRY:
{
struct cd_toc_single *data;
struct ioc_read_toc_single_entry *te =
(struct ioc_read_toc_single_entry *) addr;
struct ioc_toc_header *th;
u_int32_t track;
data = malloc(sizeof(*data), M_SCSICD, M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOREADTOCENTRY\n"));
if (te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT) {
printf("error in readtocentry, "
" returning EINVAL\n");
free(data, M_SCSICD);
error = EINVAL;
cam_periph_unlock(periph);
break;
}
th = &data->header;
error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
sizeof (*th), /*sense_flags*/0);
if (error) {
free(data, M_SCSICD);
cam_periph_unlock(periph);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
/* we are going to have to convert the BCD
* encoding on the cd to what is expected
*/
th->starting_track =
bcd2bin(th->starting_track);
th->ending_track = bcd2bin(th->ending_track);
}
track = te->track;
if (track == 0)
track = th->starting_track;
else if (track == LEADOUT)
/* OK */;
else if (track < th->starting_track ||
track > th->ending_track + 1) {
printf("error in readtocentry, "
" returning EINVAL\n");
free(data, M_SCSICD);
error = EINVAL;
cam_periph_unlock(periph);
break;
}
error = cdreadtoc(periph, te->address_format, track,
(u_int8_t *)data, sizeof(*data),
/*sense_flags*/0);
if (error) {
free(data, M_SCSICD);
cam_periph_unlock(periph);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS)
data->entry.track = bcd2bin(data->entry.track);
bcopy(&data->entry, &te->entry,
sizeof(struct cd_toc_entry));
free(data, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOCSETPATCH:
{
struct ioc_patch *arg = (struct ioc_patch *)addr;
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETPATCH\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.port[LEFT_PORT].channels =
arg->patch[0];
page->audio.port[RIGHT_PORT].channels =
arg->patch[1];
page->audio.port[2].channels = arg->patch[2];
page->audio.port[3].channels = arg->patch[3];
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOCGETVOL:
{
struct ioc_vol *arg = (struct ioc_vol *) addr;
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCGETVOL\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
arg->vol[LEFT_PORT] =
page->audio.port[LEFT_PORT].volume;
arg->vol[RIGHT_PORT] =
page->audio.port[RIGHT_PORT].volume;
arg->vol[2] = page->audio.port[2].volume;
arg->vol[3] = page->audio.port[3].volume;
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOCSETVOL:
{
struct ioc_vol *arg = (struct ioc_vol *) addr;
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETVOL\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.port[LEFT_PORT].channels = CHANNEL_0;
page->audio.port[LEFT_PORT].volume =
arg->vol[LEFT_PORT];
page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
page->audio.port[RIGHT_PORT].volume =
arg->vol[RIGHT_PORT];
page->audio.port[2].volume = arg->vol[2];
page->audio.port[3].volume = arg->vol[3];
error = cdsetmode(periph, &params);
cam_periph_unlock(periph);
free(params.mode_buf, M_SCSICD);
}
break;
case CDIOCSETMONO:
{
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETMONO\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.port[LEFT_PORT].channels =
LEFT_CHANNEL | RIGHT_CHANNEL;
page->audio.port[RIGHT_PORT].channels =
LEFT_CHANNEL | RIGHT_CHANNEL;
page->audio.port[2].channels = 0;
page->audio.port[3].channels = 0;
error = cdsetmode(periph, &params);
cam_periph_unlock(periph);
free(params.mode_buf, M_SCSICD);
}
break;
case CDIOCSETSTEREO:
{
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETSTEREO\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.port[LEFT_PORT].channels =
LEFT_CHANNEL;
page->audio.port[RIGHT_PORT].channels =
RIGHT_CHANNEL;
page->audio.port[2].channels = 0;
page->audio.port[3].channels = 0;
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOCSETMUTE:
{
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETMUTE\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.port[LEFT_PORT].channels = 0;
page->audio.port[RIGHT_PORT].channels = 0;
page->audio.port[2].channels = 0;
page->audio.port[3].channels = 0;
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOCSETLEFT:
{
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETLEFT\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
page->audio.port[2].channels = 0;
page->audio.port[3].channels = 0;
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOCSETRIGHT:
{
struct cd_mode_params params;
union cd_pages *page;
params.alloc_len = sizeof(union cd_mode_data_6_10);
params.mode_buf = malloc(params.alloc_len, M_SCSICD,
M_WAITOK | M_ZERO);
cam_periph_lock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETRIGHT\n"));
error = cdgetmode(periph, &params, AUDIO_PAGE);
if (error) {
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
break;
}
page = cdgetpage(&params);
page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
page->audio.port[2].channels = 0;
page->audio.port[3].channels = 0;
error = cdsetmode(periph, &params);
free(params.mode_buf, M_SCSICD);
cam_periph_unlock(periph);
}
break;
case CDIOCRESUME:
cam_periph_lock(periph);
error = cdpause(periph, 1);
cam_periph_unlock(periph);
break;
case CDIOCPAUSE:
cam_periph_lock(periph);
error = cdpause(periph, 0);
cam_periph_unlock(periph);
break;
case CDIOCSTART:
cam_periph_lock(periph);
error = cdstartunit(periph, 0);
cam_periph_unlock(periph);
break;
case CDIOCCLOSE:
cam_periph_lock(periph);
error = cdstartunit(periph, 1);
cam_periph_unlock(periph);
break;
case CDIOCSTOP:
cam_periph_lock(periph);
error = cdstopunit(periph, 0);
cam_periph_unlock(periph);
break;
case CDIOCEJECT:
cam_periph_lock(periph);
error = cdstopunit(periph, 1);
cam_periph_unlock(periph);
break;
case CDIOCALLOW:
cam_periph_lock(periph);
cdprevent(periph, PR_ALLOW);
cam_periph_unlock(periph);
break;
case CDIOCPREVENT:
cam_periph_lock(periph);
cdprevent(periph, PR_PREVENT);
cam_periph_unlock(periph);
break;
case CDIOCSETDEBUG:
/* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
error = ENOTTY;
break;
case CDIOCCLRDEBUG:
/* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
error = ENOTTY;
break;
case CDIOCRESET:
/* return (cd_reset(periph)); */
error = ENOTTY;
break;
case CDRIOCREADSPEED:
cam_periph_lock(periph);
error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
cam_periph_unlock(periph);
break;
case CDRIOCWRITESPEED:
cam_periph_lock(periph);
error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
cam_periph_unlock(periph);
break;
case CDRIOCGETBLOCKSIZE:
*(int *)addr = softc->params.blksize;
break;
case CDRIOCSETBLOCKSIZE:
if (*(int *)addr <= 0) {
error = EINVAL;
break;
}
softc->disk->d_sectorsize = softc->params.blksize = *(int *)addr;
break;
case DVDIOCSENDKEY:
case DVDIOCREPORTKEY: {
struct dvd_authinfo *authinfo;
authinfo = (struct dvd_authinfo *)addr;
if (cmd == DVDIOCREPORTKEY)
error = cdreportkey(periph, authinfo);
else
error = cdsendkey(periph, authinfo);
break;
}
case DVDIOCREADSTRUCTURE: {
struct dvd_struct *dvdstruct;
dvdstruct = (struct dvd_struct *)addr;
error = cdreaddvdstructure(periph, dvdstruct);
break;
}
default:
cam_periph_lock(periph);
error = cam_periph_ioctl(periph, cmd, addr, cderror);
cam_periph_unlock(periph);
break;
}
cam_periph_lock(periph);
cam_periph_unhold(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
if (error && bootverbose) {
printf("scsi_cd.c::ioctl cmd=%08lx error=%d\n", cmd, error);
}
cam_periph_unlock(periph);
return (error);
}
static void
cdprevent(struct cam_periph *periph, int action)
{
union ccb *ccb;
struct cd_softc *softc;
int error;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
if (((action == PR_ALLOW)
&& (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
|| ((action == PR_PREVENT)
&& (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
return;
}
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
scsi_prevent(&ccb->csio,
/*retries*/ cd_retry_count,
/*cbfcnp*/NULL,
MSG_SIMPLE_Q_TAG,
action,
SSD_FULL_SIZE,
/* timeout */60000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
xpt_release_ccb(ccb);
if (error == 0) {
if (action == PR_ALLOW)
softc->flags &= ~CD_FLAG_DISC_LOCKED;
else
softc->flags |= CD_FLAG_DISC_LOCKED;
}
}
static void
cdmediaprobedone(struct cam_periph *periph)
{
struct cd_softc *softc;
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
softc->flags &= ~CD_FLAG_MEDIA_SCAN_ACT;
if ((softc->flags & CD_FLAG_MEDIA_WAIT) != 0) {
softc->flags &= ~CD_FLAG_MEDIA_WAIT;
wakeup(&softc->toc);
}
}
/*
* XXX: the disk media and sector size is only really able to change
* XXX: while the device is closed.
*/
static int
cdcheckmedia(struct cam_periph *periph, int do_wait)
{
struct cd_softc *softc;
int error;
cam_periph_assert(periph, MA_OWNED);
softc = (struct cd_softc *)periph->softc;
error = 0;
if ((do_wait != 0)
&& ((softc->flags & CD_FLAG_MEDIA_WAIT) == 0)) {
softc->flags |= CD_FLAG_MEDIA_WAIT;
}
if ((softc->flags & CD_FLAG_MEDIA_SCAN_ACT) == 0) {
softc->state = CD_STATE_MEDIA_PREVENT;
softc->flags |= CD_FLAG_MEDIA_SCAN_ACT;
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
}
if (do_wait == 0)
goto bailout;
error = msleep(&softc->toc, cam_periph_mtx(periph), PRIBIO,"cdmedia",0);
if (error != 0)
goto bailout;
/*
* Check to see whether we have a valid size from the media. We
* may or may not have a valid TOC.
*/
if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
error = EINVAL;
bailout:
return (error);
}
#if 0
static int
cdcheckmedia(struct cam_periph *periph)
{
struct cd_softc *softc;
struct ioc_toc_header *toch;
struct cd_toc_single leadout;
u_int32_t size, toclen;
int error, num_entries, cdindex;
softc = (struct cd_softc *)periph->softc;
cdprevent(periph, PR_PREVENT);
softc->disk->d_sectorsize = 2048;
softc->disk->d_mediasize = 0;
/*
* Get the disc size and block size. If we can't get it, we don't
* have media, most likely.
*/
if ((error = cdsize(periph, &size)) != 0) {
softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
cdprevent(periph, PR_ALLOW);
return (error);
} else {
softc->flags |= CD_FLAG_SAW_MEDIA | CD_FLAG_VALID_MEDIA;
softc->disk->d_sectorsize = softc->params.blksize;
softc->disk->d_mediasize =
(off_t)softc->params.blksize * softc->params.disksize;
}
/*
* Now we check the table of contents. This (currently) is only
* used for the CDIOCPLAYTRACKS ioctl. It may be used later to do
* things like present a separate entry in /dev for each track,
* like that acd(4) driver does.
*/
bzero(&softc->toc, sizeof(softc->toc));
toch = &softc->toc.header;
/*
* We will get errors here for media that doesn't have a table of
* contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
* command is presented for a DDCD/CD-R/RW media, where the first TOC
* has not been recorded (no complete session) and the Format codes
* 0000b, 0001b, or 0010b are specified, this command shall be rejected
* with an INVALID FIELD IN CDB. Devices that are not capable of
* reading an incomplete session on DDC/CD-R/RW media shall report
* CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
*
* So this isn't fatal if we can't read the table of contents, it
* just means that the user won't be able to issue the play tracks
* ioctl, and likely lots of other stuff won't work either. They
* need to burn the CD before we can do a whole lot with it. So
* we don't print anything here if we get an error back.
*/
error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
SF_NO_PRINT);
/*
* Errors in reading the table of contents aren't fatal, we just
* won't have a valid table of contents cached.
*/
if (error != 0) {
error = 0;
bzero(&softc->toc, sizeof(softc->toc));
goto bailout;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
toch->starting_track = bcd2bin(toch->starting_track);
toch->ending_track = bcd2bin(toch->ending_track);
}
/* Number of TOC entries, plus leadout */
num_entries = (toch->ending_track - toch->starting_track) + 2;
if (num_entries <= 0)
goto bailout;
toclen = num_entries * sizeof(struct cd_toc_entry);
error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
(u_int8_t *)&softc->toc, toclen + sizeof(*toch),
SF_NO_PRINT);
if (error != 0) {
error = 0;
bzero(&softc->toc, sizeof(softc->toc));
goto bailout;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
toch->starting_track = bcd2bin(toch->starting_track);
toch->ending_track = bcd2bin(toch->ending_track);
}
/*
* XXX KDM is this necessary? Probably only if the drive doesn't
* return leadout information with the table of contents.
*/
cdindex = toch->starting_track + num_entries -1;
if (cdindex == toch->ending_track + 1) {
error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
(u_int8_t *)&leadout, sizeof(leadout),
SF_NO_PRINT);
if (error != 0) {
error = 0;
goto bailout;
}
softc->toc.entries[cdindex - toch->starting_track] =
leadout.entry;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
for (cdindex = 0; cdindex < num_entries - 1; cdindex++) {
softc->toc.entries[cdindex].track =
bcd2bin(softc->toc.entries[cdindex].track);
}
}
softc->flags |= CD_FLAG_VALID_TOC;
/* If the first track is audio, correct sector size. */
if ((softc->toc.entries[0].control & 4) == 0) {
softc->disk->d_sectorsize = softc->params.blksize = 2352;
softc->disk->d_mediasize =
(off_t)softc->params.blksize * softc->params.disksize;
}
bailout:
/*
* We unconditionally (re)set the blocksize each time the
* CD device is opened. This is because the CD can change,
* and therefore the blocksize might change.
* XXX problems here if some slice or partition is still
* open with the old size?
*/
if ((softc->disk->d_devstat->flags & DEVSTAT_BS_UNAVAILABLE) != 0)
softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
softc->disk->d_devstat->block_size = softc->params.blksize;
return (error);
}
static int
cdsize(struct cam_periph *periph, u_int32_t *size)
{
struct cd_softc *softc;
union ccb *ccb;
struct scsi_read_capacity_data *rcap_buf;
int error;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
softc = (struct cd_softc *)periph->softc;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
/* XXX Should be M_WAITOK */
rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
M_SCSICD, M_NOWAIT | M_ZERO);
if (rcap_buf == NULL)
return (ENOMEM);
scsi_read_capacity(&ccb->csio,
/*retries*/ cd_retry_count,
/*cbfcnp*/NULL,
MSG_SIMPLE_Q_TAG,
rcap_buf,
SSD_FULL_SIZE,
/* timeout */20000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
xpt_release_ccb(ccb);
softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
softc->params.blksize = scsi_4btoul(rcap_buf->length);
/* Make sure we got at least some block size. */
if (error == 0 && softc->params.blksize == 0)
error = EIO;
/*
* SCSI-3 mandates that the reported blocksize shall be 2048.
* Older drives sometimes report funny values, trim it down to
* 2048, or other parts of the kernel will get confused.
*
* XXX we leave drives alone that might report 512 bytes, as
* well as drives reporting more weird sizes like perhaps 4K.
*/
if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
softc->params.blksize = 2048;
free(rcap_buf, M_SCSICD);
*size = softc->params.disksize;
return (error);
}
#endif
static int
cd6byteworkaround(union ccb *ccb)
{
u_int8_t *cdb;
struct cam_periph *periph;
struct cd_softc *softc;
struct cd_mode_params *params;
int frozen, found;
periph = xpt_path_periph(ccb->ccb_h.path);
softc = (struct cd_softc *)periph->softc;
cdb = ccb->csio.cdb_io.cdb_bytes;
if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
|| ((cdb[0] != MODE_SENSE_6)
&& (cdb[0] != MODE_SELECT_6)))
return (0);
/*
* Because there is no convenient place to stash the overall
* cd_mode_params structure pointer, we have to grab it like this.
* This means that ALL MODE_SENSE and MODE_SELECT requests in the
* cd(4) driver MUST go through cdgetmode() and cdsetmode()!
*
* XXX It would be nice if, at some point, we could increase the
* number of available peripheral private pointers. Both pointers
* are currently used in most every peripheral driver.
*/
found = 0;
STAILQ_FOREACH(params, &softc->mode_queue, links) {
if (params->mode_buf == ccb->csio.data_ptr) {
found = 1;
break;
}
}
/*
* This shouldn't happen. All mode sense and mode select
* operations in the cd(4) driver MUST go through cdgetmode() and
* cdsetmode()!
*/
if (found == 0) {
xpt_print(periph->path,
"mode buffer not found in mode queue!\n");
return (0);
}
params->cdb_size = 10;
softc->minimum_command_size = 10;
xpt_print(ccb->ccb_h.path,
"%s(6) failed, increasing minimum CDB size to 10 bytes\n",
(cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
if (cdb[0] == MODE_SENSE_6) {
struct scsi_mode_sense_10 ms10;
struct scsi_mode_sense_6 *ms6;
int len;
ms6 = (struct scsi_mode_sense_6 *)cdb;
bzero(&ms10, sizeof(ms10));
ms10.opcode = MODE_SENSE_10;
ms10.byte2 = ms6->byte2;
ms10.page = ms6->page;
/*
* 10 byte mode header, block descriptor,
* sizeof(union cd_pages)
*/
len = sizeof(struct cd_mode_data_10);
ccb->csio.dxfer_len = len;
scsi_ulto2b(len, ms10.length);
ms10.control = ms6->control;
bcopy(&ms10, cdb, 10);
ccb->csio.cdb_len = 10;
} else {
struct scsi_mode_select_10 ms10;
struct scsi_mode_select_6 *ms6;
struct scsi_mode_header_6 *header6;
struct scsi_mode_header_10 *header10;
struct scsi_mode_page_header *page_header;
int blk_desc_len, page_num, page_size, len;
ms6 = (struct scsi_mode_select_6 *)cdb;
bzero(&ms10, sizeof(ms10));
ms10.opcode = MODE_SELECT_10;
ms10.byte2 = ms6->byte2;
header6 = (struct scsi_mode_header_6 *)params->mode_buf;
header10 = (struct scsi_mode_header_10 *)params->mode_buf;
page_header = find_mode_page_6(header6);
page_num = page_header->page_code;
blk_desc_len = header6->blk_desc_len;
page_size = cdgetpagesize(page_num);
if (page_size != (page_header->page_length +
sizeof(*page_header)))
page_size = page_header->page_length +
sizeof(*page_header);
len = sizeof(*header10) + blk_desc_len + page_size;
len = min(params->alloc_len, len);
/*
* Since the 6 byte parameter header is shorter than the 10
* byte parameter header, we need to copy the actual mode
* page data, and the block descriptor, if any, so things wind
* up in the right place. The regions will overlap, but
* bcopy() does the right thing.
*/
bcopy(params->mode_buf + sizeof(*header6),
params->mode_buf + sizeof(*header10),
len - sizeof(*header10));
/* Make sure these fields are set correctly. */
scsi_ulto2b(0, header10->data_length);
header10->medium_type = 0;
scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
ccb->csio.dxfer_len = len;
scsi_ulto2b(len, ms10.length);
ms10.control = ms6->control;
bcopy(&ms10, cdb, 10);
ccb->csio.cdb_len = 10;
}
frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
ccb->ccb_h.status = CAM_REQUEUE_REQ;
xpt_action(ccb);
if (frozen) {
cam_release_devq(ccb->ccb_h.path,
/*relsim_flags*/0,
/*openings*/0,
/*timeout*/0,
/*getcount_only*/0);
}
return (ERESTART);
}
static int
cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
{
struct cd_softc *softc;
struct cam_periph *periph;
int error, error_code, sense_key, asc, ascq;
periph = xpt_path_periph(ccb->ccb_h.path);
softc = (struct cd_softc *)periph->softc;
cam_periph_assert(periph, MA_OWNED);
/*
* We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
* CDB comes back with this particular error, try transforming it
* into the 10 byte version.
*/
error = 0;
if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
error = cd6byteworkaround(ccb);
} else if (scsi_extract_sense_ccb(ccb,
&error_code, &sense_key, &asc, &ascq)) {
if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
error = cd6byteworkaround(ccb);
else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
asc == 0x28 && ascq == 0x00)
disk_media_changed(softc->disk, M_NOWAIT);
else if (sense_key == SSD_KEY_NOT_READY &&
asc == 0x3a && (softc->flags & CD_FLAG_SAW_MEDIA)) {
softc->flags &= ~CD_FLAG_SAW_MEDIA;
disk_media_gone(softc->disk, M_NOWAIT);
}
}
if (error == ERESTART)
return (error);
/*
* XXX
* Until we have a better way of doing pack validation,
* don't treat UAs as errors.
*/
sense_flags |= SF_RETRY_UA;
if (softc->quirks & CD_Q_RETRY_BUSY)
sense_flags |= SF_RETRY_BUSY;
return (cam_periph_error(ccb, cam_flags, sense_flags));
}
static void
cdmediapoll(void *arg)
{
struct cam_periph *periph = arg;
struct cd_softc *softc = periph->softc;
if (softc->state == CD_STATE_NORMAL && !softc->tur &&
softc->outstanding_cmds == 0) {
if (cam_periph_acquire(periph) == 0) {
softc->tur = 1;
xpt_schedule(periph, CAM_PRIORITY_NORMAL);
}
}
/* Queue us up again */
if (cd_poll_period != 0) {
callout_schedule_sbt(&softc->mediapoll_c,
cd_poll_period * SBT_1S, 0, C_PREL(1));
}
}
/*
* Read table of contents
*/
static int
cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
{
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
scsi_read_toc(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* byte1_flags */ (mode == CD_MSF_FORMAT) ? CD_MSF : 0,
/* format */ SRTOC_FORMAT_TOC,
/* track*/ start,
/* data_ptr */ data,
/* dxfer_len */ len,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA | sense_flags);
xpt_release_ccb(ccb);
return(error);
}
static int
cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
u_int32_t format, int track,
struct cd_sub_channel_info *data, u_int32_t len)
{
struct scsi_read_subchannel *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* flags */ CAM_DIR_IN,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ (u_int8_t *)data,
/* dxfer_len */ len,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_read_subchannel),
/* timeout */ 50000);
scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = READ_SUBCHANNEL;
if (mode == CD_MSF_FORMAT)
scsi_cmd->byte1 |= CD_MSF;
scsi_cmd->byte2 = SRS_SUBQ;
scsi_cmd->subchan_format = format;
scsi_cmd->track = track;
scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
scsi_cmd->control = 0;
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
/*
* All MODE_SENSE requests in the cd(4) driver MUST go through this
* routine. See comments in cd6byteworkaround() for details.
*/
static int
cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
u_int32_t page)
{
struct ccb_scsiio *csio;
struct cd_softc *softc;
union ccb *ccb;
int param_len;
int error;
softc = (struct cd_softc *)periph->softc;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
data->cdb_size = softc->minimum_command_size;
if (data->cdb_size < 10)
param_len = sizeof(struct cd_mode_data);
else
param_len = sizeof(struct cd_mode_data_10);
/* Don't say we've got more room than we actually allocated */
param_len = min(param_len, data->alloc_len);
scsi_mode_sense_len(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* dbd */ 0,
/* page_code */ SMS_PAGE_CTRL_CURRENT,
/* page */ page,
/* param_buf */ data->mode_buf,
/* param_len */ param_len,
/* minimum_cmd_size */ softc->minimum_command_size,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
/*
* It would be nice not to have to do this, but there's no
* available pointer in the CCB that would allow us to stuff the
* mode params structure in there and retrieve it in
* cd6byteworkaround(), so we can set the cdb size. The cdb size
* lets the caller know what CDB size we ended up using, so they
* can find the actual mode page offset.
*/
STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
/*
* This is a bit of belt-and-suspenders checking, but if we run
* into a situation where the target sends back multiple block
* descriptors, we might not have enough space in the buffer to
* see the whole mode page. Better to return an error than
* potentially access memory beyond our malloced region.
*/
if (error == 0) {
u_int32_t data_len;
if (data->cdb_size == 10) {
struct scsi_mode_header_10 *hdr10;
hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
data_len = scsi_2btoul(hdr10->data_length);
data_len += sizeof(hdr10->data_length);
} else {
struct scsi_mode_header_6 *hdr6;
hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
data_len = hdr6->data_length;
data_len += sizeof(hdr6->data_length);
}
/*
* Complain if there is more mode data available than we
* allocated space for. This could potentially happen if
* we miscalculated the page length for some reason, if the
* drive returns multiple block descriptors, or if it sets
* the data length incorrectly.
*/
if (data_len > data->alloc_len) {
xpt_print(periph->path, "allocated modepage %d length "
"%d < returned length %d\n", page, data->alloc_len,
data_len);
error = ENOSPC;
}
}
return (error);
}
/*
* All MODE_SELECT requests in the cd(4) driver MUST go through this
* routine. See comments in cd6byteworkaround() for details.
*/
static int
cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
{
struct ccb_scsiio *csio;
struct cd_softc *softc;
union ccb *ccb;
int cdb_size, param_len;
int error;
softc = (struct cd_softc *)periph->softc;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
error = 0;
/*
* If the data is formatted for the 10 byte version of the mode
* select parameter list, we need to use the 10 byte CDB.
* Otherwise, we use whatever the stored minimum command size.
*/
if (data->cdb_size == 10)
cdb_size = data->cdb_size;
else
cdb_size = softc->minimum_command_size;
if (cdb_size >= 10) {
struct scsi_mode_header_10 *mode_header;
u_int32_t data_len;
mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
data_len = scsi_2btoul(mode_header->data_length);
scsi_ulto2b(0, mode_header->data_length);
/*
* SONY drives do not allow a mode select with a medium_type
* value that has just been returned by a mode sense; use a
* medium_type of 0 (Default) instead.
*/
mode_header->medium_type = 0;
/*
* Pass back whatever the drive passed to us, plus the size
* of the data length field.
*/
param_len = data_len + sizeof(mode_header->data_length);
} else {
struct scsi_mode_header_6 *mode_header;
mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
param_len = mode_header->data_length + 1;
mode_header->data_length = 0;
/*
* SONY drives do not allow a mode select with a medium_type
* value that has just been returned by a mode sense; use a
* medium_type of 0 (Default) instead.
*/
mode_header->medium_type = 0;
}
/* Don't say we've got more room than we actually allocated */
param_len = min(param_len, data->alloc_len);
scsi_mode_select_len(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* scsi_page_fmt */ 1,
/* save_pages */ 0,
/* param_buf */ data->mode_buf,
/* param_len */ param_len,
/* minimum_cmd_size */ cdb_size,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
/* See comments in cdgetmode() and cd6byteworkaround(). */
STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
return (error);
}
static int
cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
{
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
u_int8_t cdb_len;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
/*
* Use the smallest possible command to perform the operation.
*/
if ((len & 0xffff0000) == 0) {
/*
* We can fit in a 10 byte cdb.
*/
struct scsi_play_10 *scsi_cmd;
scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_10;
scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
cdb_len = sizeof(*scsi_cmd);
} else {
struct scsi_play_12 *scsi_cmd;
scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_12;
scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
cdb_len = sizeof(*scsi_cmd);
}
cam_fill_csio(csio,
/*retries*/ cd_retry_count,
/*cbfcnp*/NULL,
/*flags*/CAM_DIR_NONE,
MSG_SIMPLE_Q_TAG,
/*dataptr*/NULL,
/*datalen*/0,
/*sense_len*/SSD_FULL_SIZE,
cdb_len,
/*timeout*/50 * 1000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
{
struct scsi_play_msf *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* flags */ CAM_DIR_NONE,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ NULL,
/* dxfer_len */ 0,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_play_msf),
/* timeout */ 50000);
scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_MSF;
scsi_cmd->start_m = startm;
scsi_cmd->start_s = starts;
scsi_cmd->start_f = startf;
scsi_cmd->end_m = endm;
scsi_cmd->end_s = ends;
scsi_cmd->end_f = endf;
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
u_int32_t etrack, u_int32_t eindex)
{
struct scsi_play_track *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* flags */ CAM_DIR_NONE,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ NULL,
/* dxfer_len */ 0,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_play_track),
/* timeout */ 50000);
scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_TRACK;
scsi_cmd->start_track = strack;
scsi_cmd->start_index = sindex;
scsi_cmd->end_track = etrack;
scsi_cmd->end_index = eindex;
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdpause(struct cam_periph *periph, u_int32_t go)
{
struct scsi_pause *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* flags */ CAM_DIR_NONE,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ NULL,
/* dxfer_len */ 0,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_pause),
/* timeout */ 50000);
scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PAUSE;
scsi_cmd->resume = go;
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdstartunit(struct cam_periph *periph, int load)
{
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
scsi_start_stop(&ccb->csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* start */ TRUE,
/* load_eject */ load,
/* immediate */ FALSE,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdstopunit(struct cam_periph *periph, u_int32_t eject)
{
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
scsi_start_stop(&ccb->csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* start */ FALSE,
/* load_eject */ eject,
/* immediate */ FALSE,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
{
struct scsi_set_speed *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
csio = &ccb->csio;
/* Preserve old behavior: units in multiples of CDROM speed */
if (rdspeed < 177)
rdspeed *= 177;
if (wrspeed < 177)
wrspeed *= 177;
cam_fill_csio(csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* flags */ CAM_DIR_NONE,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ NULL,
/* dxfer_len */ 0,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_set_speed),
/* timeout */ 50000);
scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = SET_CD_SPEED;
scsi_ulto2b(rdspeed, scsi_cmd->readspeed);
scsi_ulto2b(wrspeed, scsi_cmd->writespeed);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
{
union ccb *ccb;
u_int8_t *databuf;
u_int32_t lba;
int error;
int length;
error = 0;
databuf = NULL;
lba = 0;
switch (authinfo->format) {
case DVD_REPORT_AGID:
length = sizeof(struct scsi_report_key_data_agid);
break;
case DVD_REPORT_CHALLENGE:
length = sizeof(struct scsi_report_key_data_challenge);
break;
case DVD_REPORT_KEY1:
length = sizeof(struct scsi_report_key_data_key1_key2);
break;
case DVD_REPORT_TITLE_KEY:
length = sizeof(struct scsi_report_key_data_title);
/* The lba field is only set for the title key */
lba = authinfo->lba;
break;
case DVD_REPORT_ASF:
length = sizeof(struct scsi_report_key_data_asf);
break;
case DVD_REPORT_RPC:
length = sizeof(struct scsi_report_key_data_rpc);
break;
case DVD_INVALIDATE_AGID:
length = 0;
break;
default:
return (EINVAL);
}
if (length != 0) {
databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
} else
databuf = NULL;
cam_periph_lock(periph);
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
scsi_report_key(&ccb->csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* lba */ lba,
/* agid */ authinfo->agid,
/* key_format */ authinfo->format,
/* data_ptr */ databuf,
/* dxfer_len */ length,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
if (error != 0)
goto bailout;
if (ccb->csio.resid != 0) {
xpt_print(periph->path, "warning, residual for report key "
"command is %d\n", ccb->csio.resid);
}
switch(authinfo->format) {
case DVD_REPORT_AGID: {
struct scsi_report_key_data_agid *agid_data;
agid_data = (struct scsi_report_key_data_agid *)databuf;
authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
RKD_AGID_SHIFT;
break;
}
case DVD_REPORT_CHALLENGE: {
struct scsi_report_key_data_challenge *chal_data;
chal_data = (struct scsi_report_key_data_challenge *)databuf;
bcopy(chal_data->challenge_key, authinfo->keychal,
min(sizeof(chal_data->challenge_key),
sizeof(authinfo->keychal)));
break;
}
case DVD_REPORT_KEY1: {
struct scsi_report_key_data_key1_key2 *key1_data;
key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
bcopy(key1_data->key1, authinfo->keychal,
min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
break;
}
case DVD_REPORT_TITLE_KEY: {
struct scsi_report_key_data_title *title_data;
title_data = (struct scsi_report_key_data_title *)databuf;
authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
RKD_TITLE_CPM_SHIFT;
authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
RKD_TITLE_CP_SEC_SHIFT;
authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
RKD_TITLE_CMGS_SHIFT;
bcopy(title_data->title_key, authinfo->keychal,
min(sizeof(title_data->title_key),
sizeof(authinfo->keychal)));
break;
}
case DVD_REPORT_ASF: {
struct scsi_report_key_data_asf *asf_data;
asf_data = (struct scsi_report_key_data_asf *)databuf;
authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
break;
}
case DVD_REPORT_RPC: {
struct scsi_report_key_data_rpc *rpc_data;
rpc_data = (struct scsi_report_key_data_rpc *)databuf;
authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
RKD_RPC_TYPE_SHIFT;
authinfo->vend_rsts =
(rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
RKD_RPC_VENDOR_RESET_SHIFT;
authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
authinfo->region = rpc_data->region_mask;
authinfo->rpc_scheme = rpc_data->rpc_scheme1;
break;
}
case DVD_INVALIDATE_AGID:
break;
default:
/* This should be impossible, since we checked above */
error = EINVAL;
goto bailout;
break; /* NOTREACHED */
}
bailout:
xpt_release_ccb(ccb);
cam_periph_unlock(periph);
if (databuf != NULL)
free(databuf, M_DEVBUF);
return(error);
}
static int
cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
{
union ccb *ccb;
u_int8_t *databuf;
int length;
int error;
error = 0;
databuf = NULL;
switch(authinfo->format) {
case DVD_SEND_CHALLENGE: {
struct scsi_report_key_data_challenge *challenge_data;
length = sizeof(*challenge_data);
challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
databuf = (u_int8_t *)challenge_data;
scsi_ulto2b(length - sizeof(challenge_data->data_len),
challenge_data->data_len);
bcopy(authinfo->keychal, challenge_data->challenge_key,
min(sizeof(authinfo->keychal),
sizeof(challenge_data->challenge_key)));
break;
}
case DVD_SEND_KEY2: {
struct scsi_report_key_data_key1_key2 *key2_data;
length = sizeof(*key2_data);
key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
databuf = (u_int8_t *)key2_data;
scsi_ulto2b(length - sizeof(key2_data->data_len),
key2_data->data_len);
bcopy(authinfo->keychal, key2_data->key1,
min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
break;
}
case DVD_SEND_RPC: {
struct scsi_send_key_data_rpc *rpc_data;
length = sizeof(*rpc_data);
rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
databuf = (u_int8_t *)rpc_data;
scsi_ulto2b(length - sizeof(rpc_data->data_len),
rpc_data->data_len);
rpc_data->region_code = authinfo->region;
break;
}
default:
return (EINVAL);
}
cam_periph_lock(periph);
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
scsi_send_key(&ccb->csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* agid */ authinfo->agid,
/* key_format */ authinfo->format,
/* data_ptr */ databuf,
/* dxfer_len */ length,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
cam_periph_unlock(periph);
if (databuf != NULL)
free(databuf, M_DEVBUF);
return(error);
}
static int
cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
{
union ccb *ccb;
u_int8_t *databuf;
u_int32_t address;
int error;
int length;
error = 0;
databuf = NULL;
/* The address is reserved for many of the formats */
address = 0;
switch(dvdstruct->format) {
case DVD_STRUCT_PHYSICAL:
length = sizeof(struct scsi_read_dvd_struct_data_physical);
break;
case DVD_STRUCT_COPYRIGHT:
length = sizeof(struct scsi_read_dvd_struct_data_copyright);
break;
case DVD_STRUCT_DISCKEY:
length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
break;
case DVD_STRUCT_BCA:
length = sizeof(struct scsi_read_dvd_struct_data_bca);
break;
case DVD_STRUCT_MANUFACT:
length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
break;
case DVD_STRUCT_CMI:
return (ENODEV);
case DVD_STRUCT_PROTDISCID:
length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
break;
case DVD_STRUCT_DISCKEYBLOCK:
length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
break;
case DVD_STRUCT_DDS:
length = sizeof(struct scsi_read_dvd_struct_data_dds);
break;
case DVD_STRUCT_MEDIUM_STAT:
length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
break;
case DVD_STRUCT_SPARE_AREA:
length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
break;
case DVD_STRUCT_RMD_LAST:
return (ENODEV);
case DVD_STRUCT_RMD_RMA:
return (ENODEV);
case DVD_STRUCT_PRERECORDED:
length = sizeof(struct scsi_read_dvd_struct_data_leadin);
break;
case DVD_STRUCT_UNIQUEID:
length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
break;
case DVD_STRUCT_DCB:
return (ENODEV);
case DVD_STRUCT_LIST:
/*
* This is the maximum allocation length for the READ DVD
* STRUCTURE command. There's nothing in the MMC3 spec
* that indicates a limit in the amount of data that can
* be returned from this call, other than the limits
* imposed by the 2-byte length variables.
*/
length = 65535;
break;
default:
return (EINVAL);
}
if (length != 0) {
databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
} else
databuf = NULL;
cam_periph_lock(periph);
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
scsi_read_dvd_structure(&ccb->csio,
/* retries */ cd_retry_count,
/* cbfcnp */ NULL,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* lba */ address,
/* layer_number */ dvdstruct->layer_num,
/* key_format */ dvdstruct->format,
/* agid */ dvdstruct->agid,
/* data_ptr */ databuf,
/* dxfer_len */ length,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
if (error != 0)
goto bailout;
switch(dvdstruct->format) {
case DVD_STRUCT_PHYSICAL: {
struct scsi_read_dvd_struct_data_layer_desc *inlayer;
struct dvd_layer *outlayer;
struct scsi_read_dvd_struct_data_physical *phys_data;
phys_data =
(struct scsi_read_dvd_struct_data_physical *)databuf;
inlayer = &phys_data->layer_desc;
outlayer = (struct dvd_layer *)&dvdstruct->data;
dvdstruct->length = sizeof(*inlayer);
outlayer->book_type = (inlayer->book_type_version &
RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
outlayer->book_version = (inlayer->book_type_version &
RDSD_BOOK_VERSION_MASK);
outlayer->disc_size = (inlayer->disc_size_max_rate &
RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
outlayer->max_rate = (inlayer->disc_size_max_rate &
RDSD_MAX_RATE_MASK);
outlayer->nlayers = (inlayer->layer_info &
RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
outlayer->track_path = (inlayer->layer_info &
RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
outlayer->layer_type = (inlayer->layer_info &
RDSD_LAYER_TYPE_MASK);
outlayer->linear_density = (inlayer->density &
RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
outlayer->track_density = (inlayer->density &
RDSD_TRACK_DENSITY_MASK);
outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
RDSD_BCA_SHIFT;
outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
outlayer->end_sector_l0 =
scsi_3btoul(inlayer->end_sector_layer0);
break;
}
case DVD_STRUCT_COPYRIGHT: {
struct scsi_read_dvd_struct_data_copyright *copy_data;
copy_data = (struct scsi_read_dvd_struct_data_copyright *)
databuf;
dvdstruct->cpst = copy_data->cps_type;
dvdstruct->rmi = copy_data->region_info;
dvdstruct->length = 0;
break;
}
default:
/*
* Tell the user what the overall length is, no matter
* what we can actually fit in the data buffer.
*/
dvdstruct->length = length - ccb->csio.resid -
sizeof(struct scsi_read_dvd_struct_data_header);
/*
* But only actually copy out the smaller of what we read
* in or what the structure can take.
*/
bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
dvdstruct->data,
min(sizeof(dvdstruct->data), dvdstruct->length));
break;
}
bailout:
xpt_release_ccb(ccb);
cam_periph_unlock(periph);
if (databuf != NULL)
free(databuf, M_DEVBUF);
return(error);
}
void
scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_report_key *scsi_cmd;
scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = REPORT_KEY;
scsi_ulto4b(lba, scsi_cmd->lba);
scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
(key_format & RK_KF_KEYFORMAT_MASK);
cam_fill_csio(csio,
retries,
cbfcnp,
/*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
tag_action,
/*data_ptr*/ data_ptr,
/*dxfer_len*/ dxfer_len,
sense_len,
sizeof(*scsi_cmd),
timeout);
}
void
scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout)
{
struct scsi_send_key *scsi_cmd;
scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = SEND_KEY;
scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
(key_format & RK_KF_KEYFORMAT_MASK);
cam_fill_csio(csio,
retries,
cbfcnp,
/*flags*/ CAM_DIR_OUT,
tag_action,
/*data_ptr*/ data_ptr,
/*dxfer_len*/ dxfer_len,
sense_len,
sizeof(*scsi_cmd),
timeout);
}
void
scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int32_t address,
u_int8_t layer_number, u_int8_t format, u_int8_t agid,
u_int8_t *data_ptr, u_int32_t dxfer_len,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_read_dvd_structure *scsi_cmd;
scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = READ_DVD_STRUCTURE;
scsi_ulto4b(address, scsi_cmd->address);
scsi_cmd->layer_number = layer_number;
scsi_cmd->format = format;
scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
/* The AGID is the top two bits of this byte */
scsi_cmd->agid = agid << 6;
cam_fill_csio(csio,
retries,
cbfcnp,
/*flags*/ CAM_DIR_IN,
tag_action,
/*data_ptr*/ data_ptr,
/*dxfer_len*/ dxfer_len,
sense_len,
sizeof(*scsi_cmd),
timeout);
}
void
scsi_read_toc(struct ccb_scsiio *csio, uint32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
uint8_t tag_action, uint8_t byte1_flags, uint8_t format,
uint8_t track, uint8_t *data_ptr, uint32_t dxfer_len,
int sense_len, int timeout)
{
struct scsi_read_toc *scsi_cmd;
scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = READ_TOC;
/*
* The structure is counting from 1, the function counting from 0.
* The spec counts from 0. In MMC-6, there is only one flag, the
* MSF flag. But we put the whole byte in for a bit a future-proofing.
*/
scsi_cmd->byte2 = byte1_flags;
scsi_cmd->format = format;
scsi_cmd->from_track = track;
scsi_ulto2b(dxfer_len, scsi_cmd->data_len);
cam_fill_csio(csio,
/* retries */ retries,
/* cbfcnp */ cbfcnp,
/* flags */ CAM_DIR_IN,
/* tag_action */ tag_action,
/* data_ptr */ data_ptr,
/* dxfer_len */ dxfer_len,
/* sense_len */ sense_len,
sizeof(*scsi_cmd),
/* timeout */ timeout);
}
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