1328 lines
32 KiB
C
1328 lines
32 KiB
C
/*
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* Written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems for use under the MACH(2.5) operating system.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
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*
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* $Id: cd.c,v 1.23 1994/08/31 22:50:08 se Exp $
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*/
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#define SPLCD splbio
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#define ESUCCESS 0
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#include <cd.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/dkbad.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/buf.h>
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#include <sys/uio.h>
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#include <sys/malloc.h>
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#include <sys/cdio.h>
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#include <sys/errno.h>
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#include <sys/disklabel.h>
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#include <scsi/scsi_all.h>
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#include <scsi/scsi_cd.h>
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#include <scsi/scsi_disk.h> /* rw_big and start_stop come from there */
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#include <scsi/scsiconf.h>
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/* static function prototypes */
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static errval cd_get_parms(int, int);
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static errval cd_get_mode(u_int32, struct cd_mode_data *, u_int32);
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static errval cd_set_mode(u_int32 unit, struct cd_mode_data *);
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static errval cd_read_toc(u_int32, u_int32, u_int32, struct cd_toc_entry *,
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u_int32);
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int32 cdstrats, cdqueues;
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#ifdef DDB
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#else /* DDB */
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#define Debugger(x)
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#endif /* DDB */
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#define PAGESIZ 4096
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#define SECSIZE 2048 /* XXX */ /* default only */
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#define CDOUTSTANDING 2
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#define CDRETRIES 1
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#define UNITSHIFT 3
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#define PARTITION(z) (minor(z) & 0x07)
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#define RAW_PART 2
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#define UNIT(z) ( (minor(z) >> UNITSHIFT) )
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errval cdstrategy();
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void cdstart();
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struct scsi_device cd_switch =
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{
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NULL, /* use default error handler */
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cdstart, /* we have a queue, which is started by this */
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NULL, /* we do not have an async handler */
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NULL, /* use default 'done' routine */
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"cd", /* we are to be refered to by this name */
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0, /* no device specific flags */
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0, 0 /* spares not used */
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};
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struct cd_data {
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u_int32 flags;
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#define CDINIT 0x04 /* device has been init'd */
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struct scsi_link *sc_link; /* address of scsi low level switch */
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u_int32 ad_info; /* info about the adapter */
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u_int32 cmdscount; /* cmds allowed outstanding by board */
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struct cd_parms {
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u_int32 blksize;
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u_long disksize; /* total number sectors */
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} params;
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struct disklabel disklabel;
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u_int32 partflags[MAXPARTITIONS]; /* per partition flags */
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#define CDOPEN 0x01
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u_int32 openparts; /* one bit for each open partition */
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u_int32 xfer_block_wait;
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struct buf buf_queue;
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};
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#define CD_STOP 0
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#define CD_START 1
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#define CD_EJECT -2
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struct cd_driver {
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u_int32 size;
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struct cd_data **cd_data;
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} cd_driver;
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static u_int32 next_cd_unit = 0;
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/*
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* The routine called by the low level scsi routine when it discovers
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* A device suitable for this driver
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*/
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int
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cdattach(sc_link)
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struct scsi_link *sc_link;
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{
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u_int32 unit, i;
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unsigned char *tbl;
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struct cd_data *cd, **cdrealloc;
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struct cd_parms *dp;
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SC_DEBUG(sc_link, SDEV_DB2, ("cdattach "));
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/*
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* Fill out any more info in the
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* Link structure that we can
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*/
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unit = next_cd_unit++;
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sc_link->device = &cd_switch;
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sc_link->dev_unit = unit;
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/*
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* allocate the resources for another drive
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* if we have already allocate a cd_data pointer we must
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* copy the old pointers into a new region that is
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* larger and release the old region, aka realloc
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*/
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/* XXX
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* This if will always be true for now, but future code may
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* preallocate more units to reduce overhead. This would be
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* done by changing the malloc to be (next_cd_unit * x) and
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* the cd_driver.size++ to be +x
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*/
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if (unit >= cd_driver.size) {
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cdrealloc =
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malloc(sizeof(cd_driver.cd_data) * next_cd_unit,
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M_DEVBUF, M_NOWAIT);
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if (!cdrealloc) {
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printf("cd%d: malloc failed for cdrealloc\n", unit);
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return (0);
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}
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/* Make sure we have something to copy before we copy it */
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bzero(cdrealloc, sizeof(cd_driver.cd_data) * next_cd_unit);
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if (cd_driver.size) {
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bcopy(cd_driver.cd_data, cdrealloc,
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sizeof(cd_driver.cd_data) * cd_driver.size);
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free(cd_driver.cd_data, M_DEVBUF);
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}
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cd_driver.cd_data = cdrealloc;
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cd_driver.cd_data[unit] = NULL;
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cd_driver.size++;
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}
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if (cd_driver.cd_data[unit]) {
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printf("cd%d: Already has storage!\n", unit);
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return (0);
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}
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/*
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* allocate the per drive data area
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*/
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cd = cd_driver.cd_data[unit] =
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malloc(sizeof(struct cd_data), M_DEVBUF, M_NOWAIT);
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if (!cd) {
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printf("cd%d: malloc failed for cd_data\n", unit);
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return (0);
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}
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bzero(cd, sizeof(struct cd_data));
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dp = &(cd->params);
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/*
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* Store information needed to contact our base driver
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*/
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cd->sc_link = sc_link;
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sc_link->device = &cd_switch;
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sc_link->dev_unit = unit;
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if (cd->sc_link->adapter->adapter_info) {
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cd->ad_info = ((*(cd->sc_link->adapter->adapter_info)) (sc_link->adapter_unit));
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cd->cmdscount = cd->ad_info & AD_INF_MAX_CMDS;
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if (cd->cmdscount > CDOUTSTANDING)
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cd->cmdscount = CDOUTSTANDING;
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} else {
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cd->ad_info = 1;
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cd->cmdscount = 1;
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}
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sc_link->opennings = cd->cmdscount;
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/*
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* Use the subdriver to request information regarding
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* the drive. We cannot use interrupts yet, so the
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* request must specify this.
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*/
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cd_get_parms(unit, SCSI_NOSLEEP | SCSI_NOMASK);
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if (dp->disksize) {
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printf("cd%d: cd present.[%d x %d byte records]\n",
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unit,
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cd->params.disksize,
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cd->params.blksize);
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} else {
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printf("cd%d: drive empty\n", unit);
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}
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cd->flags |= CDINIT;
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return (1);
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}
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/*
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* open the device. Make sure the partition info is a up-to-date as can be.
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*/
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errval
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cdopen(dev)
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dev_t dev;
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{
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errval errcode = 0;
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u_int32 unit, part;
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struct cd_parms cd_parms;
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struct cd_data *cd;
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struct scsi_link *sc_link;
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u_int32 heldflags;
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unit = UNIT(dev);
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part = PARTITION(dev);
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/*
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* Check the unit is legal
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*/
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if (unit >= cd_driver.size) {
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return (ENXIO);
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}
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cd = cd_driver.cd_data[unit];
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/*
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* Make sure the device has been initialised
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*/
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if ((cd == NULL) || (!(cd->flags & CDINIT)))
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return (ENXIO);
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sc_link = cd->sc_link;
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SC_DEBUG(sc_link, SDEV_DB1,
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("cdopen: dev=0x%x (unit %d (of %d),partition %d)\n",
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dev, unit, cd_driver.size, part));
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/*
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* If it's been invalidated, and not everybody has closed it then
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* forbid re-entry. (may have changed media)
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*/
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if ((!(sc_link->flags & SDEV_MEDIA_LOADED))
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&& (cd->openparts))
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return (ENXIO);
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/*
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* Check that it is still responding and ok.
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* if the media has been changed this will result in a
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* "unit attention" error which the error code will
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* disregard because the SDEV_MEDIA_LOADED flag is not yet set
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*/
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scsi_test_unit_ready(sc_link, SCSI_SILENT);
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/*
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* Next time actually take notice of error returns
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*/
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sc_link->flags |= SDEV_OPEN; /* unit attn errors are now errors */
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if (scsi_test_unit_ready(sc_link, SCSI_SILENT) != 0) {
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SC_DEBUG(sc_link, SDEV_DB3, ("not ready\n"));
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errcode = ENXIO;
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goto bad;
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}
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SC_DEBUG(sc_link, SDEV_DB3, ("Device present\n"));
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/*
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* In case it is a funny one, tell it to start
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* not needed for some drives
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*/
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scsi_start_unit(sc_link, CD_START);
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scsi_prevent(sc_link, PR_PREVENT, SCSI_SILENT);
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SC_DEBUG(sc_link, SDEV_DB3, ("started "));
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/*
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* Load the physical device parameters
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*/
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if (cd_get_parms(unit, 0)) {
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errcode = ENXIO;
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goto bad;
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}
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SC_DEBUG(sc_link, SDEV_DB3, ("Params loaded "));
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/*
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* Make up some partition information
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*/
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cdgetdisklabel(unit);
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SC_DEBUG(sc_link, SDEV_DB3, ("Disklabel fabricated "));
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/*
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* Check the partition is legal
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*/
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if ((part >= cd->disklabel.d_npartitions)
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&& (part != RAW_PART)) {
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SC_DEBUG(sc_link, SDEV_DB3, ("partition %d > %d\n", part
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,cd->disklabel.d_npartitions));
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errcode = ENXIO;
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goto bad;
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}
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/*
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* Check that the partition exists
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*/
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if ((cd->disklabel.d_partitions[part].p_fstype == FS_UNUSED)
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&& (part != RAW_PART)) {
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SC_DEBUG(sc_link, SDEV_DB3, ("part %d type UNUSED\n", part));
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errcode = ENXIO;
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goto bad;
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}
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cd->partflags[part] |= CDOPEN;
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cd->openparts |= (1 << part);
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SC_DEBUG(sc_link, SDEV_DB3, ("open complete\n"));
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sc_link->flags |= SDEV_MEDIA_LOADED;
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return (0);
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bad:
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/*
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* if we would have been the only open
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* then leave things back as they were
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*/
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if (!(cd->openparts)) {
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sc_link->flags &= ~SDEV_OPEN;
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scsi_prevent(sc_link, PR_ALLOW, SCSI_SILENT);
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}
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return (errcode);
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}
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/*
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* close the device.. only called if we are the LAST
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* occurence of an open device
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*/
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errval
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cdclose(dev)
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dev_t dev;
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{
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u_int8 unit, part;
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u_int32 old_priority;
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struct cd_data *cd;
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struct scsi_link *sc_link;
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unit = UNIT(dev);
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part = PARTITION(dev);
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cd = cd_driver.cd_data[unit];
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sc_link = cd->sc_link;
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SC_DEBUG(sc_link, SDEV_DB2, ("cd%d: closing part %d\n", unit, part));
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cd->partflags[part] &= ~CDOPEN;
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cd->openparts &= ~(1 << part);
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|
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/*
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* If we were the last open of the entire device, release it.
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*/
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if (!(cd->openparts)) {
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scsi_prevent(sc_link, PR_ALLOW, SCSI_SILENT);
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cd->sc_link->flags &= ~SDEV_OPEN;
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}
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return (0);
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}
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/*
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* trim the size of the transfer if needed,
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* called by physio
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* basically the smaller of our max and the scsi driver's
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* minphys (note we have no max ourselves)
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*
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* Trim buffer length if buffer-size is bigger than page size
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*/
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void
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cdminphys(bp)
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struct buf *bp;
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{
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(*(cd_driver.cd_data[UNIT(bp->b_dev)]->sc_link->adapter->scsi_minphys)) (bp);
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}
|
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|
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/*
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* Actually translate the requested transfer into one the physical driver can
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* understand. The transfer is described by a buf and will include only one
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* physical transfer.
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*/
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errval
|
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cdstrategy(bp)
|
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struct buf *bp;
|
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{
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struct buf *dp;
|
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u_int32 opri;
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u_int32 unit = UNIT((bp->b_dev));
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struct cd_data *cd = cd_driver.cd_data[unit];
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|
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cdstrats++;
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SC_DEBUG(cd->sc_link, SDEV_DB2, ("\ncdstrategy "));
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SC_DEBUG(cd->sc_link, SDEV_DB1, ("cd%d: %d bytes @ blk%d\n",
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unit, bp->b_bcount, bp->b_blkno));
|
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cdminphys(bp);
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/*
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* If the device has been made invalid, error out
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* maybe the media changed
|
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*/
|
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if (!(cd->sc_link->flags & SDEV_MEDIA_LOADED)) {
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bp->b_error = EIO;
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goto bad;
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}
|
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/*
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* can't ever write to a CD
|
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*/
|
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if ((bp->b_flags & B_READ) == 0) {
|
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bp->b_error = EROFS;
|
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goto bad;
|
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}
|
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/*
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* If it's a null transfer, return immediatly
|
|
*/
|
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if (bp->b_bcount == 0) {
|
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goto done;
|
|
}
|
|
/*
|
|
* Decide which unit and partition we are talking about
|
|
*/
|
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if (PARTITION(bp->b_dev) != RAW_PART) {
|
|
/*
|
|
* do bounds checking, adjust transfer. if error, process.
|
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* if end of partition, just return
|
|
*/
|
|
if (bounds_check_with_label(bp, &cd->disklabel, 1) <= 0)
|
|
goto done;
|
|
/* otherwise, process transfer request */
|
|
} else {
|
|
bp->b_pblkno = bp->b_blkno;
|
|
bp->b_resid = 0;
|
|
}
|
|
opri = SPLCD();
|
|
dp = &cd->buf_queue;
|
|
|
|
/*
|
|
* Use a bounce buffer if necessary
|
|
*/
|
|
#ifdef BOUNCE_BUFFERS
|
|
if (cd->sc_link->flags & SDEV_BOUNCE)
|
|
vm_bounce_alloc(bp);
|
|
#endif
|
|
|
|
/*
|
|
* Place it in the queue of disk activities for this disk
|
|
*/
|
|
disksort(dp, bp);
|
|
|
|
/*
|
|
* Tell the device to get going on the transfer if it's
|
|
* not doing anything, otherwise just wait for completion
|
|
*/
|
|
cdstart(unit);
|
|
|
|
splx(opri);
|
|
return 0; /* XXX ??? is this the right return? */
|
|
bad:
|
|
bp->b_flags |= B_ERROR;
|
|
done:
|
|
|
|
/*
|
|
* Correctly set the buf to indicate a completed xfer
|
|
*/
|
|
bp->b_resid = bp->b_bcount;
|
|
biodone(bp);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* cdstart looks to see if there is a buf waiting for the device
|
|
* and that the device is not already busy. If both are true,
|
|
* It deques the buf and creates a scsi command to perform the
|
|
* transfer in the buf. The transfer request will call scsi_done
|
|
* on completion, which will in turn call this routine again
|
|
* so that the next queued transfer is performed.
|
|
* The bufs are queued by the strategy routine (cdstrategy)
|
|
*
|
|
* This routine is also called after other non-queued requests
|
|
* have been made of the scsi driver, to ensure that the queue
|
|
* continues to be drained.
|
|
*
|
|
* must be called at the correct (highish) spl level
|
|
* cdstart() is called at SPLCD from cdstrategy and scsi_done
|
|
*/
|
|
void
|
|
cdstart(unit)
|
|
u_int32 unit;
|
|
{
|
|
register struct buf *bp = 0;
|
|
register struct buf *dp;
|
|
struct scsi_rw_big cmd;
|
|
u_int32 blkno, nblk;
|
|
struct partition *p;
|
|
struct cd_data *cd = cd_driver.cd_data[unit];
|
|
struct scsi_link *sc_link = cd->sc_link;
|
|
|
|
SC_DEBUG(sc_link, SDEV_DB2, ("cdstart%d ", unit));
|
|
/*
|
|
* See if there is a buf to do and we are not already
|
|
* doing one
|
|
*/
|
|
if (!sc_link->opennings) {
|
|
return; /* no room for us, unit already underway */
|
|
}
|
|
if (sc_link->flags & SDEV_WAITING) { /* is room, but a special waits */
|
|
return; /* give the special that's waiting a chance to run */
|
|
}
|
|
dp = &cd->buf_queue;
|
|
if ((bp = dp->b_actf) != NULL) { /* yes, an assign */
|
|
dp->b_actf = bp->b_actf;
|
|
} else {
|
|
return;
|
|
}
|
|
/*
|
|
* Should reject all queued entries if SDEV_MEDIA_LOADED is not true.
|
|
*/
|
|
if (!(sc_link->flags & SDEV_MEDIA_LOADED)) {
|
|
goto bad; /* no I/O.. media changed or something */
|
|
}
|
|
/*
|
|
* We have a buf, now we should make a command
|
|
*
|
|
* First, translate the block to absolute and put it in terms of the
|
|
* logical blocksize of the device. Really a bit silly until we have
|
|
* real partitions, but.
|
|
*/
|
|
blkno = bp->b_blkno / (cd->params.blksize / 512);
|
|
if (PARTITION(bp->b_dev) != RAW_PART) {
|
|
p = cd->disklabel.d_partitions + PARTITION(bp->b_dev);
|
|
blkno += p->p_offset;
|
|
}
|
|
nblk = (bp->b_bcount + (cd->params.blksize - 1)) / (cd->params.blksize);
|
|
/* what if something asks for 512 bytes not on a 2k boundary? *//*XXX */
|
|
|
|
/*
|
|
* Fill out the scsi command
|
|
*/
|
|
bzero(&cmd, sizeof(cmd));
|
|
cmd.op_code = READ_BIG;
|
|
cmd.addr_3 = (blkno & 0xff000000UL) >> 24;
|
|
cmd.addr_2 = (blkno & 0xff0000) >> 16;
|
|
cmd.addr_1 = (blkno & 0xff00) >> 8;
|
|
cmd.addr_0 = blkno & 0xff;
|
|
cmd.length2 = (nblk & 0xff00) >> 8;
|
|
cmd.length1 = (nblk & 0xff);
|
|
|
|
/*
|
|
* Call the routine that chats with the adapter.
|
|
* Note: we cannot sleep as we may be an interrupt
|
|
*/
|
|
if (scsi_scsi_cmd(sc_link,
|
|
(struct scsi_generic *) &cmd,
|
|
sizeof(cmd),
|
|
(u_char *) bp->b_un.b_addr,
|
|
bp->b_bcount,
|
|
CDRETRIES,
|
|
30000,
|
|
bp,
|
|
SCSI_NOSLEEP | ((bp->b_flags & B_READ) ?
|
|
SCSI_DATA_IN : SCSI_DATA_OUT))
|
|
!= SUCCESSFULLY_QUEUED) {
|
|
bad:
|
|
printf("cd%d: oops not queued", unit);
|
|
bp->b_error = EIO;
|
|
bp->b_flags |= B_ERROR;
|
|
biodone(bp);
|
|
return;
|
|
}
|
|
cdqueues++;
|
|
}
|
|
|
|
/*
|
|
* Perform special action on behalf of the user.
|
|
* Knows about the internals of this device
|
|
*/
|
|
errval
|
|
cdioctl(dev_t dev, int cmd, caddr_t addr, int flag)
|
|
{
|
|
errval error = 0;
|
|
u_int32 opri;
|
|
u_int8 unit, part;
|
|
register struct cd_data *cd;
|
|
|
|
/*
|
|
* Find the device that the user is talking about
|
|
*/
|
|
unit = UNIT(dev);
|
|
part = PARTITION(dev);
|
|
cd = cd_driver.cd_data[unit];
|
|
SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdioctl 0x%x ", cmd));
|
|
|
|
/*
|
|
* If the device is not valid.. abandon ship
|
|
*/
|
|
if (!(cd->sc_link->flags & SDEV_MEDIA_LOADED))
|
|
return (EIO);
|
|
switch (cmd) {
|
|
|
|
case DIOCSBAD:
|
|
error = EINVAL;
|
|
break;
|
|
|
|
case DIOCGDINFO:
|
|
*(struct disklabel *) addr = cd->disklabel;
|
|
break;
|
|
|
|
case DIOCGPART:
|
|
((struct partinfo *) addr)->disklab = &cd->disklabel;
|
|
((struct partinfo *) addr)->part =
|
|
&cd->disklabel.d_partitions[PARTITION(dev)];
|
|
break;
|
|
|
|
/*
|
|
* a bit silly, but someone might want to test something on a
|
|
* section of cdrom.
|
|
*/
|
|
case DIOCWDINFO:
|
|
case DIOCSDINFO:
|
|
if ((flag & FWRITE) == 0)
|
|
error = EBADF;
|
|
else
|
|
error = setdisklabel(&cd->disklabel,
|
|
(struct disklabel *) addr,
|
|
0,
|
|
0);
|
|
if (error == 0)
|
|
break;
|
|
|
|
case DIOCWLABEL:
|
|
error = EBADF;
|
|
break;
|
|
|
|
case CDIOCPLAYTRACKS:
|
|
{
|
|
struct ioc_play_track *args
|
|
= (struct ioc_play_track *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.flags &= ~CD_PA_SOTC;
|
|
data.page.audio.flags |= CD_PA_IMMED;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
return (cd_play_tracks(unit
|
|
,args->start_track
|
|
,args->start_index
|
|
,args->end_track
|
|
,args->end_index
|
|
));
|
|
}
|
|
break;
|
|
case CDIOCPLAYMSF:
|
|
{
|
|
struct ioc_play_msf *args
|
|
= (struct ioc_play_msf *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.flags &= ~CD_PA_SOTC;
|
|
data.page.audio.flags |= CD_PA_IMMED;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
return (cd_play_msf(unit
|
|
,args->start_m
|
|
,args->start_s
|
|
,args->start_f
|
|
,args->end_m
|
|
,args->end_s
|
|
,args->end_f
|
|
));
|
|
}
|
|
break;
|
|
case CDIOCPLAYBLOCKS:
|
|
{
|
|
struct ioc_play_blocks *args
|
|
= (struct ioc_play_blocks *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.flags &= ~CD_PA_SOTC;
|
|
data.page.audio.flags |= CD_PA_IMMED;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
return (cd_play(unit, args->blk, args->len));
|
|
|
|
}
|
|
break;
|
|
case CDIOCREADSUBCHANNEL:
|
|
{
|
|
struct ioc_read_subchannel *args
|
|
= (struct ioc_read_subchannel *) addr;
|
|
struct cd_sub_channel_info data;
|
|
u_int32 len = args->data_len;
|
|
if (len > sizeof(data) ||
|
|
len < sizeof(struct cd_sub_channel_header)) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
if (error = cd_read_subchannel(unit, args->address_format,
|
|
args->data_format, args->track, &data, len)) {
|
|
break;
|
|
}
|
|
len = min(len, ((data.header.data_len[0] << 8) + data.header.data_len[1] +
|
|
sizeof(struct cd_sub_channel_header)));
|
|
if (copyout(&data, args->data, len) != 0) {
|
|
error = EFAULT;
|
|
}
|
|
}
|
|
break;
|
|
case CDIOREADTOCHEADER:
|
|
{ /* ??? useless bcopy? XXX */
|
|
struct ioc_toc_header th;
|
|
if (error = cd_read_toc(unit, 0, 0,
|
|
(struct cd_toc_entry *)&th,
|
|
sizeof th))
|
|
break;
|
|
th.len = (th.len & 0xff) << 8 + ((th.len >> 8) & 0xff);
|
|
bcopy(&th, addr, sizeof th);
|
|
}
|
|
break;
|
|
case CDIOREADTOCENTRYS:
|
|
{
|
|
struct cd_toc {
|
|
struct ioc_toc_header header;
|
|
struct cd_toc_entry entries[65];
|
|
} data;
|
|
struct ioc_read_toc_entry *te =
|
|
(struct ioc_read_toc_entry *) addr;
|
|
struct ioc_toc_header *th;
|
|
u_int32 len = te->data_len;
|
|
th = &data.header;
|
|
|
|
if (len > sizeof(data.entries) || len < sizeof(struct cd_toc_entry)) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
if (error = cd_read_toc(unit, te->address_format,
|
|
te->starting_track,
|
|
(struct cd_toc_entry *)&data,
|
|
len + sizeof(struct ioc_toc_header)))
|
|
break;
|
|
len = min(len, ((((th->len & 0xff) << 8) + ((th->len >> 8))) - (sizeof(th->starting_track) + sizeof(th->ending_track))));
|
|
if (copyout(data.entries, te->data, len) != 0) {
|
|
error = EFAULT;
|
|
}
|
|
}
|
|
break;
|
|
case CDIOCSETPATCH:
|
|
{
|
|
struct ioc_patch *arg = (struct ioc_patch *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.port[LEFT_PORT].channels = arg->patch[0];
|
|
data.page.audio.port[RIGHT_PORT].channels = arg->patch[1];
|
|
data.page.audio.port[2].channels = arg->patch[2];
|
|
data.page.audio.port[3].channels = arg->patch[3];
|
|
if (error = cd_set_mode(unit, &data))
|
|
break; /* eh? */
|
|
}
|
|
break;
|
|
case CDIOCGETVOL:
|
|
{
|
|
struct ioc_vol *arg = (struct ioc_vol *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
arg->vol[LEFT_PORT] = data.page.audio.port[LEFT_PORT].volume;
|
|
arg->vol[RIGHT_PORT] = data.page.audio.port[RIGHT_PORT].volume;
|
|
arg->vol[2] = data.page.audio.port[2].volume;
|
|
arg->vol[3] = data.page.audio.port[3].volume;
|
|
}
|
|
break;
|
|
case CDIOCSETVOL:
|
|
{
|
|
struct ioc_vol *arg = (struct ioc_vol *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.port[LEFT_PORT].channels = CHANNEL_0;
|
|
data.page.audio.port[LEFT_PORT].volume = arg->vol[LEFT_PORT];
|
|
data.page.audio.port[RIGHT_PORT].channels = CHANNEL_1;
|
|
data.page.audio.port[RIGHT_PORT].volume = arg->vol[RIGHT_PORT];
|
|
data.page.audio.port[2].volume = arg->vol[2];
|
|
data.page.audio.port[3].volume = arg->vol[3];
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
}
|
|
break;
|
|
case CDIOCSETMONO:
|
|
{
|
|
struct ioc_vol *arg = (struct ioc_vol *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.port[LEFT_PORT].channels = LEFT_CHANNEL | RIGHT_CHANNEL | 4 | 8;
|
|
data.page.audio.port[RIGHT_PORT].channels = LEFT_CHANNEL | RIGHT_CHANNEL;
|
|
data.page.audio.port[2].channels = 0;
|
|
data.page.audio.port[3].channels = 0;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
}
|
|
break;
|
|
case CDIOCSETSTERIO:
|
|
{
|
|
struct ioc_vol *arg = (struct ioc_vol *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
|
|
data.page.audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
|
|
data.page.audio.port[2].channels = 0;
|
|
data.page.audio.port[3].channels = 0;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
}
|
|
break;
|
|
case CDIOCSETMUTE:
|
|
{
|
|
struct ioc_vol *arg = (struct ioc_vol *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.port[LEFT_PORT].channels = 0;
|
|
data.page.audio.port[RIGHT_PORT].channels = 0;
|
|
data.page.audio.port[2].channels = 0;
|
|
data.page.audio.port[3].channels = 0;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
}
|
|
break;
|
|
case CDIOCSETLEFT:
|
|
{
|
|
struct ioc_vol *arg = (struct ioc_vol *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
|
|
data.page.audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
|
|
data.page.audio.port[2].channels = 0;
|
|
data.page.audio.port[3].channels = 0;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
}
|
|
break;
|
|
case CDIOCSETRIGHT:
|
|
{
|
|
struct ioc_vol *arg = (struct ioc_vol *) addr;
|
|
struct cd_mode_data data;
|
|
if (error = cd_get_mode(unit, &data, AUDIO_PAGE))
|
|
break;
|
|
data.page.audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
|
|
data.page.audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
|
|
data.page.audio.port[2].channels = 0;
|
|
data.page.audio.port[3].channels = 0;
|
|
if (error = cd_set_mode(unit, &data))
|
|
break;
|
|
}
|
|
break;
|
|
case CDIOCRESUME:
|
|
error = cd_pause(unit, 1);
|
|
break;
|
|
case CDIOCPAUSE:
|
|
error = cd_pause(unit, 0);
|
|
break;
|
|
case CDIOCSTART:
|
|
error = scsi_start_unit(cd->sc_link, 0);
|
|
break;
|
|
case CDIOCSTOP:
|
|
error = scsi_stop_unit(cd->sc_link, 0, 0);
|
|
break;
|
|
case CDIOCEJECT:
|
|
error = scsi_stop_unit(cd->sc_link, 1, 0);
|
|
break;
|
|
case CDIOCALLOW:
|
|
error = scsi_prevent(cd->sc_link, PR_ALLOW, 0);
|
|
break;
|
|
case CDIOCPREVENT:
|
|
error = scsi_prevent(cd->sc_link, PR_PREVENT, 0);
|
|
break;
|
|
case CDIOCSETDEBUG:
|
|
cd->sc_link->flags |= (SDEV_DB1 | SDEV_DB2);
|
|
break;
|
|
case CDIOCCLRDEBUG:
|
|
cd->sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2);
|
|
break;
|
|
case CDIOCRESET:
|
|
return (cd_reset(unit));
|
|
break;
|
|
default:
|
|
if(part == RAW_PART)
|
|
error = scsi_do_ioctl(cd->sc_link,cmd,addr,flag);
|
|
else
|
|
error = ENOTTY;
|
|
break;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Load the label information on the named device
|
|
* Actually fabricate a disklabel
|
|
*
|
|
* EVENTUALLY take information about different
|
|
* data tracks from the TOC and put it in the disklabel
|
|
*/
|
|
errval
|
|
cdgetdisklabel(unit)
|
|
u_int8 unit;
|
|
{
|
|
/*unsigned int n, m; */
|
|
char *errstring;
|
|
struct cd_data *cd;
|
|
|
|
cd = cd_driver.cd_data[unit];
|
|
|
|
bzero(&cd->disklabel, sizeof(struct disklabel));
|
|
/*
|
|
* make partition 0 the whole disk
|
|
*/
|
|
strncpy(cd->disklabel.d_typename, "scsi cd_rom", 16);
|
|
strncpy(cd->disklabel.d_packname, "ficticious", 16);
|
|
cd->disklabel.d_secsize = cd->params.blksize; /* as long as it's not 0 */
|
|
cd->disklabel.d_nsectors = 100;
|
|
cd->disklabel.d_ntracks = 1;
|
|
cd->disklabel.d_ncylinders = (cd->params.disksize / 100) + 1;
|
|
cd->disklabel.d_secpercyl = 100;
|
|
cd->disklabel.d_secperunit = cd->params.disksize;
|
|
cd->disklabel.d_rpm = 300;
|
|
cd->disklabel.d_interleave = 1;
|
|
cd->disklabel.d_flags = D_REMOVABLE;
|
|
|
|
/*
|
|
* remember that comparisons with the partition are done
|
|
* assuming the blocks are 512 bytes so fudge it.
|
|
*/
|
|
cd->disklabel.d_npartitions = 1;
|
|
cd->disklabel.d_partitions[0].p_offset = 0;
|
|
cd->disklabel.d_partitions[0].p_size
|
|
= cd->params.disksize * (cd->params.blksize / 512);
|
|
cd->disklabel.d_partitions[0].p_fstype = 9;
|
|
|
|
cd->disklabel.d_magic = DISKMAGIC;
|
|
cd->disklabel.d_magic2 = DISKMAGIC;
|
|
cd->disklabel.d_checksum = dkcksum(&(cd->disklabel));
|
|
|
|
/*
|
|
* Signal to other users and routines that we now have a
|
|
* disklabel that represents the media (maybe)
|
|
*/
|
|
return (ESUCCESS);
|
|
}
|
|
|
|
/*
|
|
* Find out from the device what it's capacity is
|
|
*/
|
|
u_int32
|
|
cd_size(unit, flags)
|
|
int unit;
|
|
int flags;
|
|
{
|
|
struct scsi_read_cd_cap_data rdcap;
|
|
struct scsi_read_cd_capacity scsi_cmd;
|
|
u_int32 size;
|
|
u_int32 blksize;
|
|
struct cd_data *cd = cd_driver.cd_data[unit];
|
|
|
|
/*
|
|
* make up a scsi command and ask the scsi driver to do
|
|
* it for you.
|
|
*/
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
scsi_cmd.op_code = READ_CD_CAPACITY;
|
|
|
|
/*
|
|
* If the command works, interpret the result as a 4 byte
|
|
* number of blocks and a blocksize
|
|
*/
|
|
if (scsi_scsi_cmd(cd->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
(u_char *) & rdcap,
|
|
sizeof(rdcap),
|
|
CDRETRIES,
|
|
20000, /* might be a disk-changer */
|
|
NULL,
|
|
SCSI_DATA_IN | flags) != 0) {
|
|
printf("cd%d: could not get size\n", unit);
|
|
return (0);
|
|
} else {
|
|
size = rdcap.addr_0 + 1;
|
|
size += rdcap.addr_1 << 8;
|
|
size += rdcap.addr_2 << 16;
|
|
size += rdcap.addr_3 << 24;
|
|
blksize = rdcap.length_0;
|
|
blksize += rdcap.length_1 << 8;
|
|
blksize += rdcap.length_2 << 16;
|
|
blksize += rdcap.length_3 << 24;
|
|
}
|
|
if (blksize < 512)
|
|
blksize = 2048; /* some drives lie ! */
|
|
if (size < 100)
|
|
size = 400000; /* ditto */
|
|
SC_DEBUG(cd->sc_link, SDEV_DB3, ("cd%d: %d %d byte blocks\n"
|
|
,unit, size, blksize));
|
|
cd->params.disksize = size;
|
|
cd->params.blksize = blksize;
|
|
return (size);
|
|
}
|
|
|
|
/*
|
|
* Get the requested page into the buffer given
|
|
*/
|
|
static errval
|
|
cd_get_mode(unit, data, page)
|
|
u_int32 unit;
|
|
struct cd_mode_data *data;
|
|
u_int32 page;
|
|
{
|
|
struct scsi_mode_sense scsi_cmd;
|
|
errval retval;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
bzero(data, sizeof(*data));
|
|
scsi_cmd.op_code = MODE_SENSE;
|
|
scsi_cmd.page = page;
|
|
scsi_cmd.length = sizeof(*data) & 0xff;
|
|
retval = scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
(u_char *) data,
|
|
sizeof(*data),
|
|
CDRETRIES,
|
|
20000, /* should be immed */
|
|
NULL,
|
|
SCSI_DATA_IN);
|
|
return (retval);
|
|
}
|
|
|
|
/*
|
|
* Get the requested page into the buffer given
|
|
*/
|
|
errval
|
|
cd_set_mode(unit, data)
|
|
u_int32 unit;
|
|
struct cd_mode_data *data;
|
|
{
|
|
struct scsi_mode_select scsi_cmd;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
scsi_cmd.op_code = MODE_SELECT;
|
|
scsi_cmd.byte2 |= SMS_PF;
|
|
scsi_cmd.length = sizeof(*data) & 0xff;
|
|
data->header.data_length = 0;
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
(u_char *) data,
|
|
sizeof(*data),
|
|
CDRETRIES,
|
|
20000, /* should be immed */
|
|
NULL,
|
|
SCSI_DATA_OUT));
|
|
}
|
|
|
|
/*
|
|
* Get scsi driver to send a "start playing" command
|
|
*/
|
|
errval
|
|
cd_play(unit, blk, len)
|
|
u_int32 unit, blk, len;
|
|
{
|
|
struct scsi_play scsi_cmd;
|
|
errval retval;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
scsi_cmd.op_code = PLAY;
|
|
scsi_cmd.blk_addr[0] = (blk >> 24) & 0xff;
|
|
scsi_cmd.blk_addr[1] = (blk >> 16) & 0xff;
|
|
scsi_cmd.blk_addr[2] = (blk >> 8) & 0xff;
|
|
scsi_cmd.blk_addr[3] = blk & 0xff;
|
|
scsi_cmd.xfer_len[0] = (len >> 8) & 0xff;
|
|
scsi_cmd.xfer_len[1] = len & 0xff;
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
0,
|
|
0,
|
|
CDRETRIES,
|
|
200000, /* should be immed */
|
|
NULL,
|
|
0));
|
|
}
|
|
|
|
/*
|
|
* Get scsi driver to send a "start playing" command
|
|
*/
|
|
errval
|
|
cd_play_big(unit, blk, len)
|
|
u_int32 unit, blk, len;
|
|
{
|
|
struct scsi_play_big scsi_cmd;
|
|
errval retval;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
scsi_cmd.op_code = PLAY_BIG;
|
|
scsi_cmd.blk_addr[0] = (blk >> 24) & 0xff;
|
|
scsi_cmd.blk_addr[1] = (blk >> 16) & 0xff;
|
|
scsi_cmd.blk_addr[2] = (blk >> 8) & 0xff;
|
|
scsi_cmd.blk_addr[3] = blk & 0xff;
|
|
scsi_cmd.xfer_len[0] = (len >> 24) & 0xff;
|
|
scsi_cmd.xfer_len[1] = (len >> 16) & 0xff;
|
|
scsi_cmd.xfer_len[2] = (len >> 8) & 0xff;
|
|
scsi_cmd.xfer_len[3] = len & 0xff;
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
0,
|
|
0,
|
|
CDRETRIES,
|
|
20000, /* should be immed */
|
|
NULL,
|
|
0));
|
|
}
|
|
|
|
/*
|
|
* Get scsi driver to send a "start playing" command
|
|
*/
|
|
errval
|
|
cd_play_tracks(unit, strack, sindex, etrack, eindex)
|
|
u_int32 unit, strack, sindex, etrack, eindex;
|
|
{
|
|
struct scsi_play_track scsi_cmd;
|
|
errval retval;
|
|
|
|
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;
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
0,
|
|
0,
|
|
CDRETRIES,
|
|
20000, /* should be immed */
|
|
NULL,
|
|
0));
|
|
}
|
|
|
|
/*
|
|
* Get scsi driver to send a "play msf" command
|
|
*/
|
|
errval
|
|
cd_play_msf(unit, startm, starts, startf, endm, ends, endf)
|
|
u_int32 unit, startm, starts, startf, endm, ends, endf;
|
|
{
|
|
struct scsi_play_msf scsi_cmd;
|
|
|
|
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;
|
|
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
0,
|
|
0,
|
|
CDRETRIES,
|
|
2000,
|
|
NULL,
|
|
0));
|
|
}
|
|
|
|
/*
|
|
* Get scsi driver to send a "start up" command
|
|
*/
|
|
errval
|
|
cd_pause(unit, go)
|
|
u_int32 unit, go;
|
|
{
|
|
struct scsi_pause scsi_cmd;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
scsi_cmd.op_code = PAUSE;
|
|
scsi_cmd.resume = go;
|
|
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(scsi_cmd),
|
|
0,
|
|
0,
|
|
CDRETRIES,
|
|
2000,
|
|
NULL,
|
|
0));
|
|
}
|
|
|
|
/*
|
|
* Get scsi driver to send a "RESET" command
|
|
*/
|
|
errval
|
|
cd_reset(unit)
|
|
u_int32 unit;
|
|
{
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
CDRETRIES,
|
|
2000,
|
|
NULL,
|
|
SCSI_RESET));
|
|
}
|
|
|
|
/*
|
|
* Read subchannel
|
|
*/
|
|
errval
|
|
cd_read_subchannel(unit, mode, format, track, data, len)
|
|
u_int32 unit, mode, format;
|
|
int track;
|
|
struct cd_sub_channel_info *data;
|
|
u_int32 len;
|
|
{
|
|
struct scsi_read_subchannel scsi_cmd;
|
|
errval error;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
|
|
scsi_cmd.op_code = READ_SUBCHANNEL;
|
|
if (mode == CD_MSF_FORMAT)
|
|
scsi_cmd.byte2 |= CD_MSF;
|
|
scsi_cmd.byte3 = SRS_SUBQ;
|
|
scsi_cmd.subchan_format = format;
|
|
scsi_cmd.track = track;
|
|
scsi_cmd.data_len[0] = (len) >> 8;
|
|
scsi_cmd.data_len[1] = (len) & 0xff;
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(struct scsi_read_subchannel),
|
|
(u_char *) data,
|
|
len,
|
|
CDRETRIES,
|
|
5000,
|
|
NULL,
|
|
SCSI_DATA_IN));
|
|
}
|
|
|
|
/*
|
|
* Read table of contents
|
|
*/
|
|
static errval
|
|
cd_read_toc(unit, mode, start, data, len)
|
|
u_int32 unit, mode, start;
|
|
struct cd_toc_entry *data;
|
|
u_int32 len;
|
|
{
|
|
struct scsi_read_toc scsi_cmd;
|
|
errval error;
|
|
u_int32 ntoc;
|
|
|
|
bzero(&scsi_cmd, sizeof(scsi_cmd));
|
|
/*if(len!=sizeof(struct ioc_toc_header))
|
|
* ntoc=((len)-sizeof(struct ioc_toc_header))/sizeof(struct cd_toc_entry);
|
|
* else */
|
|
ntoc = len;
|
|
|
|
scsi_cmd.op_code = READ_TOC;
|
|
if (mode == CD_MSF_FORMAT)
|
|
scsi_cmd.byte2 |= CD_MSF;
|
|
scsi_cmd.from_track = start;
|
|
scsi_cmd.data_len[0] = (ntoc) >> 8;
|
|
scsi_cmd.data_len[1] = (ntoc) & 0xff;
|
|
return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link,
|
|
(struct scsi_generic *) &scsi_cmd,
|
|
sizeof(struct scsi_read_toc),
|
|
(u_char *) data,
|
|
len,
|
|
CDRETRIES,
|
|
5000,
|
|
NULL,
|
|
SCSI_DATA_IN));
|
|
}
|
|
|
|
#define b2tol(a) (((unsigned)(a##_1) << 8) + (unsigned)a##_0 )
|
|
|
|
/*
|
|
* Get the scsi driver to send a full inquiry to the device and use the
|
|
* results to fill out the disk parameter structure.
|
|
*/
|
|
static errval
|
|
cd_get_parms(unit, flags)
|
|
int unit;
|
|
int flags;
|
|
{
|
|
struct cd_data *cd = cd_driver.cd_data[unit];
|
|
|
|
/*
|
|
* First check if we have it all loaded
|
|
*/
|
|
if (cd->sc_link->flags & SDEV_MEDIA_LOADED)
|
|
return (0);
|
|
/*
|
|
* give a number of sectors so that sec * trks * cyls
|
|
* is <= disk_size
|
|
*/
|
|
if (cd_size(unit, flags)) {
|
|
cd->sc_link->flags |= SDEV_MEDIA_LOADED;
|
|
return (0);
|
|
} else {
|
|
return (ENXIO);
|
|
}
|
|
}
|
|
|
|
int
|
|
cdsize(dev_t dev)
|
|
{
|
|
return (-1);
|
|
}
|