diff options
Diffstat (limited to 'sys/scsi/cd.c')
| -rw-r--r-- | sys/scsi/cd.c | 2276 |
1 files changed, 848 insertions, 1428 deletions
diff --git a/sys/scsi/cd.c b/sys/scsi/cd.c index 9598901f2c6c..e2c174e84b1a 100644 --- a/sys/scsi/cd.c +++ b/sys/scsi/cd.c @@ -14,7 +14,7 @@ * * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 * - * $Id: cd.c,v 1.10 1993/09/21 05:30:35 rgrimes Exp $ + * $Id: cd.c,v 1.16 1994/02/05 09:08:46 swallace Exp $ */ #define SPLCD splbio @@ -40,898 +40,708 @@ #include <scsi/scsi_disk.h> /* rw_big and start_stop come from there */ #include <scsi/scsiconf.h> -long int cdstrats,cdqueues; +/* static function prototypes */ +static errval cd_get_parms(int, int); +static errval cd_get_mode(u_int32, struct cd_mode_data *, u_int32); +static errval cd_set_mode(u_int32 unit, struct cd_mode_data *); +static errval cd_read_toc(u_int32, u_int32, u_int32, struct cd_toc_entry *, + u_int32); +int32 cdstrats, cdqueues; + #include <ddb.h> #if NDDB > 0 -int Debugger(); -#else NDDB > 0 +#else /* NDDB > 0 */ #define Debugger() -#endif NDDB > 0 - +#endif /* NDDB > 0 */ #define PAGESIZ 4096 -#define SECSIZE 2048 /* XXX */ /* default only */ +#define SECSIZE 2048 /* XXX */ /* default only */ #define CDOUTSTANDING 2 -#define CDQSIZE 4 -#define CD_RETRIES 4 +#define CDRETRIES 1 #define UNITSHIFT 3 #define PARTITION(z) (minor(z) & 0x07) #define RAW_PART 3 #define UNIT(z) ( (minor(z) >> UNITSHIFT) ) +errval cdstrategy(); -extern int hz; -int cd_done(); -int cdstrategy(); -int cd_debug = 0; - - -struct cd_data +void cdstart(); +struct scsi_device cd_switch = { - int flags; -#define CDVALID 0x02 /* PARAMS LOADED */ -#define CDINIT 0x04 /* device has been init'd */ -#define CDWAIT 0x08 /* device has someone waiting */ -#define CDHAVELABEL 0x10 /* have read the label */ - struct scsi_switch *sc_sw; /* address of scsi low level switch */ - int ctlr; /* so they know which one we want */ - int targ; /* our scsi target ID */ - int lu; /* out scsi lu */ - int cmdscount; /* cmds allowed outstanding by board*/ - struct cd_parms - { - int blksize; - u_long disksize; /* total number sectors */ - }params; - struct disklabel disklabel; - int partflags[MAXPARTITIONS]; /* per partition flags */ + NULL, /* use default error handler */ + cdstart, /* we have a queue, which is started by this */ + NULL, /* we do not have an async handler */ + NULL, /* use default 'done' routine */ + "cd", /* we are to be refered to by this name */ + 0, /* no device specific flags */ + 0, 0 /* spares not used */ +}; + +struct cd_data { + u_int32 flags; +#define CDINIT 0x04 /* device has been init'd */ + struct scsi_link *sc_link; /* address of scsi low level switch */ + u_int32 cmdscount; /* cmds allowed outstanding by board */ + struct cd_parms { + u_int32 blksize; + u_long disksize; /* total number sectors */ + } params; + struct disklabel disklabel; + u_int32 partflags[MAXPARTITIONS]; /* per partition flags */ #define CDOPEN 0x01 - int openparts; /* one bit for each open partition */ - int xfer_block_wait; - struct scsi_xfer *free_xfer; - struct scsi_xfer scsi_xfer[CDOUTSTANDING]; /* XXX */ - struct buf buf_queue; + u_int32 openparts; /* one bit for each open partition */ + u_int32 xfer_block_wait; + struct buf buf_queue; }; #define CD_STOP 0 #define CD_START 1 #define CD_EJECT -2 -struct cd_driver -{ - int size; - struct cd_data **cd_data; -}*cd_driver; - -static int next_cd_unit = 0; -/***********************************************************************\ -* The routine called by the low level scsi routine when it discovers * -* A device suitable for this driver * -\***********************************************************************/ -int cdattach(ctlr,targ,lu,scsi_switch) -struct scsi_switch *scsi_switch; +struct cd_driver { + u_int32 size; + struct cd_data **cd_data; +} cd_driver; + +static u_int32 next_cd_unit = 0; + +/* + * The routine called by the low level scsi routine when it discovers + * A device suitable for this driver + */ +int +cdattach(sc_link) + struct scsi_link *sc_link; { - int unit,i; - unsigned char *tbl; - struct cd_data *cd, **cdrealloc; - struct cd_parms *dp; - -#ifdef CDDEBUG - if(scsi_debug & PRINTROUTINES) printf("cdattach: "); -#endif /*CDDEBUG*/ - /*******************************************************\ - * Check if we have resources allocated yet, if not * - * allocate and initialize them * - \*******************************************************/ - if (next_cd_unit == 0) - { - cd_driver = - malloc(sizeof(struct cd_driver),M_DEVBUF,M_NOWAIT); - if(!cd_driver) - { - printf("cd%d: malloc failed for cd_driver\n",unit); - return(0); - } - bzero(cd_driver,sizeof(cd_driver)); - cd_driver->size = 0; - } - /*******************************************************\ - * allocate the resources for another drive * - * if we have already allocate a cd_data pointer we must * - * copy the old pointers into a new region that is * - * larger and release the old region, aka realloc * - \*******************************************************/ + u_int32 unit, i; + unsigned char *tbl; + struct cd_data *cd, **cdrealloc; + struct cd_parms *dp; + + SC_DEBUG(sc_link, SDEV_DB2, ("cdattach ")); + + /* + * Fill out any more info in the + * Link structure that we can + */ unit = next_cd_unit++; + sc_link->device = &cd_switch; + sc_link->dev_unit = unit; + /* + * allocate the resources for another drive + * if we have already allocate a cd_data pointer we must + * copy the old pointers into a new region that is + * larger and release the old region, aka realloc + */ /* XXX * This if will always be true for now, but future code may * preallocate more units to reduce overhead. This would be * done by changing the malloc to be (next_cd_unit * x) and - * the cd_driver->size++ to be +x + * the cd_driver.size++ to be +x */ - if(unit >= cd_driver->size) - { + if (unit >= cd_driver.size) { cdrealloc = - malloc(sizeof(cd_driver->cd_data) * next_cd_unit, - M_DEVBUF,M_NOWAIT); - if(!cdrealloc) - { - printf("cd%d: malloc failed for cdrealloc\n",unit); - return(0); + malloc(sizeof(cd_driver.cd_data) * next_cd_unit, + M_DEVBUF, M_NOWAIT); + if (!cdrealloc) { + printf("cd%d: malloc failed for cdrealloc\n", unit); + return (0); } /* Make sure we have something to copy before we copy it */ - bzero(cdrealloc,sizeof(cd_driver->cd_data) * next_cd_unit); - if(cd_driver->size) - { - bcopy(cd_driver->cd_data,cdrealloc, - sizeof(cd_driver->cd_data) * cd_driver->size); - free(cd_driver->cd_data,M_DEVBUF); + bzero(cdrealloc, sizeof(cd_driver.cd_data) * next_cd_unit); + if (cd_driver.size) { + bcopy(cd_driver.cd_data, cdrealloc, + sizeof(cd_driver.cd_data) * cd_driver.size); + free(cd_driver.cd_data, M_DEVBUF); } - cd_driver->cd_data = cdrealloc; - cd_driver->cd_data[unit] = NULL; - cd_driver->size++; - } - if(cd_driver->cd_data[unit]) - { - printf("cd%d: Already has storage!\n",unit); - return(0); + cd_driver.cd_data = cdrealloc; + cd_driver.cd_data[unit] = NULL; + cd_driver.size++; } - /*******************************************************\ - * allocate the per drive data area * - \*******************************************************/ - cd = cd_driver->cd_data[unit] = - malloc(sizeof(struct cd_data),M_DEVBUF,M_NOWAIT); - if(!cd) - { - printf("cd%d: malloc failed for cd_data\n",unit); - return(0); + if (cd_driver.cd_data[unit]) { + printf("cd%d: Already has storage!\n", unit); + return (0); } - bzero(cd,sizeof(struct cd_data)); - dp = &(cd->params); - /*******************************************************\ - * Store information needed to contact our base driver * - \*******************************************************/ - cd->sc_sw = scsi_switch; - cd->ctlr = ctlr; - cd->targ = targ; - cd->lu = lu; - cd->cmdscount = CDOUTSTANDING; /* XXX (ask the board) */ - - i = cd->cmdscount; - while(i-- ) - { - cd->scsi_xfer[i].next = cd->free_xfer; - cd->free_xfer = &cd->scsi_xfer[i]; + /* + * allocate the per drive data area + */ + cd = cd_driver.cd_data[unit] = + malloc(sizeof(struct cd_data), M_DEVBUF, M_NOWAIT); + if (!cd) { + printf("cd%d: malloc failed for cd_data\n", unit); + return (0); } - /*******************************************************\ - * Use the subdriver to request information regarding * - * the drive. We cannot use interrupts yet, so the * - * request must specify this. * - \*******************************************************/ - cd_get_parms(unit, SCSI_NOSLEEP | SCSI_NOMASK); - if(dp->disksize) - { + bzero(cd, sizeof(struct cd_data)); + dp = &(cd->params); + /* + * Store information needed to contact our base driver + */ + cd->sc_link = sc_link; + /* only allow 1 outstanding command on tapes */ + sc_link->opennings = cd->cmdscount = CDOUTSTANDING; + + /* + * Use the subdriver to request information regarding + * the drive. We cannot use interrupts yet, so the + * request must specify this. + */ + cd_get_parms(unit, SCSI_NOSLEEP | SCSI_NOMASK); + if (dp->disksize) { printf("cd%d: cd present.[%d x %d byte records]\n", - unit, - cd->params.disksize, - cd->params.blksize); - } - else - { + unit, + cd->params.disksize, + cd->params.blksize); + } else { printf("cd%d: drive empty\n", unit); } cd->flags |= CDINIT; - return; + return (1); } -/*******************************************************\ -* open the device. Make sure the partition info * -* is a up-to-date as can be. * -\*******************************************************/ +/* + * open the device. Make sure the partition info is a up-to-date as can be. + */ +errval cdopen(dev) + dev_t dev; { - int errcode = 0; - int unit, part; + errval errcode = 0; + u_int32 unit, part; struct cd_parms cd_parms; struct cd_data *cd; + struct scsi_link *sc_link; + u_int32 heldflags; unit = UNIT(dev); part = PARTITION(dev); -#ifdef CDDEBUG - if(scsi_debug & (PRINTROUTINES | TRACEOPENS)) - printf("cdopen: dev=0x%x (unit %d (of %d),partition %d)\n" - ,dev,unit,cd_driver->size,part); -#endif /*CDDEBUG*/ - /*******************************************************\ - * Check the unit is legal * - \*******************************************************/ - if ( unit >= cd_driver->size ) - { - return(ENXIO); + /* + * Check the unit is legal + */ + if (unit >= cd_driver.size) { + return (ENXIO); } - cd = cd_driver->cd_data[unit]; - /*******************************************************\ - * Make sure the device has been initialised * - \*******************************************************/ + cd = cd_driver.cd_data[unit]; + /* + * Make sure the device has been initialised + */ if ((cd == NULL) || (!(cd->flags & CDINIT))) - return(ENXIO); - - /*******************************************************\ - * If it's been invalidated, and not everybody has * - * closed it then forbid re-entry. * - * (may have changed media) * - \*******************************************************/ - if ((! (cd->flags & CDVALID)) - && ( cd->openparts)) - return(ENXIO); - - /*******************************************************\ - * Check that it is still responding and ok. * - * if the media has been changed this will result in a * - * "unit attention" error which the error code will * - * disregard because the CDVALID flag is not yet set * - \*******************************************************/ - cd_test_ready(unit, SCSI_SILENT); - - /*******************************************************\ - * Next time actually take notice of error returns * - \*******************************************************/ - if (cd_test_ready(unit, SCSI_SILENT) != 0) { -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("not ready\n"); -#endif /*CDDEBUG*/ - return(ENXIO); + return (ENXIO); + + sc_link = cd->sc_link; + SC_DEBUG(sc_link, SDEV_DB1, + ("cdopen: dev=0x%x (unit %d (of %d),partition %d)\n", + dev, unit, cd_driver.size, part)); + /* + * If it's been invalidated, and not everybody has closed it then + * forbid re-entry. (may have changed media) + */ + if ((!(sc_link->flags & SDEV_MEDIA_LOADED)) + && (cd->openparts)) + return (ENXIO); + + /* + * Check that it is still responding and ok. + * if the media has been changed this will result in a + * "unit attention" error which the error code will + * disregard because the SDEV_MEDIA_LOADED flag is not yet set + */ + scsi_test_unit_ready(sc_link, SCSI_SILENT); + + /* + * Next time actually take notice of error returns + */ + sc_link->flags |= SDEV_OPEN; /* unit attn errors are now errors */ + if (scsi_test_unit_ready(sc_link, SCSI_SILENT) != 0) { + SC_DEBUG(sc_link, SDEV_DB3, ("not ready\n")); + errcode = ENXIO; + goto bad; } -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("Device present\n"); -#endif /*CDDEBUG*/ - /*******************************************************\ - * In case it is a funny one, tell it to start * - * not needed for some drives * - \*******************************************************/ - cd_start_unit(unit,part,CD_START); - cd_prevent_unit(unit,PR_PREVENT,SCSI_SILENT); -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("started "); -#endif /*CDDEBUG*/ - /*******************************************************\ - * Load the physical device parameters * - \*******************************************************/ - cd_get_parms(unit, 0); -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("Params loaded "); -#endif /*CDDEBUG*/ - /*******************************************************\ - * Load the partition info if not already loaded * - \*******************************************************/ + SC_DEBUG(sc_link, SDEV_DB3, ("Device present\n")); + /* + * In case it is a funny one, tell it to start + * not needed for some drives + */ + scsi_start_unit(sc_link, CD_START); + scsi_prevent(sc_link, PR_PREVENT, SCSI_SILENT); + SC_DEBUG(sc_link, SDEV_DB3, ("started ")); + /* + * Load the physical device parameters + */ + if (cd_get_parms(unit, 0)) { + errcode = ENXIO; + goto bad; + } + SC_DEBUG(sc_link, SDEV_DB3, ("Params loaded ")); + /* + * Make up some partition information + */ cdgetdisklabel(unit); -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("Disklabel fabricated "); -#endif /*CDDEBUG*/ - /*******************************************************\ - * Check the partition is legal * - \*******************************************************/ - if (( part >= cd->disklabel.d_npartitions ) - && (part != RAW_PART)) - { -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("partition %d > %d\n",part - ,cd->disklabel.d_npartitions); -#endif /*CDDEBUG*/ - cd_prevent_unit(unit,PR_ALLOW,SCSI_SILENT); - return(ENXIO); + SC_DEBUG(sc_link, SDEV_DB3, ("Disklabel fabricated ")); + /* + * Check the partition is legal + */ + if ((part >= cd->disklabel.d_npartitions) + && (part != RAW_PART)) { + SC_DEBUG(sc_link, SDEV_DB3, ("partition %d > %d\n", part + ,cd->disklabel.d_npartitions)); + errcode = ENXIO; + goto bad; } - /*******************************************************\ - * Check that the partition exists * - \*******************************************************/ - if (( cd->disklabel.d_partitions[part].p_fstype != FS_UNUSED ) - || (part == RAW_PART)) - { - cd->partflags[part] |= CDOPEN; - cd->openparts |= (1 << part); -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("open complete\n"); -#endif /*CDDEBUG*/ - cd->flags |= CDVALID; + /* + * Check that the partition exists + */ + if ((cd->disklabel.d_partitions[part].p_fstype == FS_UNUSED) + && (part != RAW_PART)) { + SC_DEBUG(sc_link, SDEV_DB3, ("part %d type UNUSED\n", part)); + errcode = ENXIO; + goto bad; } - else - { -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("part %d type UNUSED\n",part); -#endif /*CDDEBUG*/ - cd_prevent_unit(unit,PR_ALLOW,SCSI_SILENT); - return(ENXIO); + cd->partflags[part] |= CDOPEN; + cd->openparts |= (1 << part); + SC_DEBUG(sc_link, SDEV_DB3, ("open complete\n")); + sc_link->flags |= SDEV_MEDIA_LOADED; + return (0); + bad: + + /* + * if we would have been the only open + * then leave things back as they were + */ + if (!(cd->openparts)) { + sc_link->flags &= ~SDEV_OPEN; + scsi_prevent(sc_link, PR_ALLOW, SCSI_SILENT); } - return(0); + return (errcode); } -/*******************************************************\ -* Get ownership of a scsi_xfer structure * -* If need be, sleep on it, until it comes free * -\*******************************************************/ -struct scsi_xfer *cd_get_xs(unit,flags) -int flags; -int unit; +/* + * close the device.. only called if we are the LAST + * occurence of an open device + */ +errval +cdclose(dev) + dev_t dev; { - struct scsi_xfer *xs; + u_int8 unit, part; + u_int32 old_priority; struct cd_data *cd; - int s; - - cd = cd_driver->cd_data[unit]; - if(flags & (SCSI_NOSLEEP | SCSI_NOMASK)) - { - if (xs = cd->free_xfer) - { - cd->free_xfer = xs->next; - xs->flags = 0; - } - } - else - { - s = SPLCD(); - while (!(xs = cd->free_xfer)) - { - cd->xfer_block_wait++; /* someone waiting! */ - sleep((caddr_t)&cd->free_xfer, PRIBIO+1); - cd->xfer_block_wait--; - } - cd->free_xfer = xs->next; - splx(s); - xs->flags = 0; - } - return(xs); -} + struct scsi_link *sc_link; -/*******************************************************\ -* Free a scsi_xfer, wake processes waiting for it * -\*******************************************************/ -cd_free_xs(unit,xs,flags) -struct scsi_xfer *xs; -int unit; -int flags; -{ - struct cd_data *cd; - int s; - - cd = cd_driver->cd_data[unit]; - if(flags & SCSI_NOMASK) - { - if (cd->xfer_block_wait) - { - printf("cd%d: doing a wakeup from NOMASK mode\n", unit); - wakeup((caddr_t)&cd->free_xfer); - } - xs->next = cd->free_xfer; - cd->free_xfer = xs; - } - else - { - s = SPLCD(); - if (cd->xfer_block_wait) - wakeup((caddr_t)&cd->free_xfer); - xs->next = cd->free_xfer; - cd->free_xfer = xs; - splx(s); + unit = UNIT(dev); + part = PARTITION(dev); + cd = cd_driver.cd_data[unit]; + sc_link = cd->sc_link; + SC_DEBUG(sc_link, SDEV_DB2, ("cd%d: closing part %d\n", unit, part)); + cd->partflags[part] &= ~CDOPEN; + cd->openparts &= ~(1 << part); + + /* + * If we were the last open of the entire device, release it. + */ + if (!(cd->openparts)) { + scsi_prevent(sc_link, PR_ALLOW, SCSI_SILENT); + cd->sc_link->flags &= ~SDEV_OPEN; } + return (0); } -/*******************************************************\ -* trim the size of the transfer if needed, * -* called by physio * -* basically the smaller of our max and the scsi driver's* -* minphys (note we have no max ourselves) * -\*******************************************************/ -/* Trim buffer length if buffer-size is bigger than page size */ -void cdminphys(bp) -struct buf *bp; +/* + * trim the size of the transfer if needed, + * called by physio + * basically the smaller of our max and the scsi driver's + * minphys (note we have no max ourselves) + * + * Trim buffer length if buffer-size is bigger than page size + */ +void +cdminphys(bp) + struct buf *bp; { - (*(cd_driver->cd_data[UNIT(bp->b_dev)]->sc_sw->scsi_minphys))(bp); + (*(cd_driver.cd_data[UNIT(bp->b_dev)]->sc_link->adapter->scsi_minphys)) (bp); } -/*******************************************************\ -* 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. * -\*******************************************************/ - -int cdstrategy(bp) -struct buf *bp; +/* + * 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. + */ +errval +cdstrategy(bp) + struct buf *bp; { - struct buf *dp; - unsigned int opri; - struct cd_data *cd; - int unit; + struct buf *dp; + u_int32 opri; + u_int32 unit = UNIT((bp->b_dev)); + struct cd_data *cd = cd_driver.cd_data[unit]; cdstrats++; - unit = UNIT((bp->b_dev)); - cd = cd_driver->cd_data[unit]; -#ifdef CDDEBUG - if(scsi_debug & PRINTROUTINES) printf("\ncdstrategy "); - if(scsi_debug & SHOWREQUESTS) printf("cd%d: %d bytes @ blk%d\n", - unit,bp->b_bcount,bp->b_blkno); -#endif /*CDDEBUG*/ + SC_DEBUG(cd->sc_link, SDEV_DB2, ("\ncdstrategy ")); + SC_DEBUG(cd->sc_link, SDEV_DB1, ("cd%d: %d bytes @ blk%d\n", + unit, bp->b_bcount, bp->b_blkno)); cdminphys(bp); - /*******************************************************\ - * If the device has been made invalid, error out * - * maybe the media changed * - \*******************************************************/ - if(!(cd->flags & CDVALID)) - { + /* + * If the device has been made invalid, error out + * maybe the media changed + */ + if (!(cd->sc_link->flags & SDEV_MEDIA_LOADED)) { bp->b_error = EIO; goto bad; } - /*******************************************************\ - * can't ever write to a CD * - \*******************************************************/ + /* + * can't ever write to a CD + */ if ((bp->b_flags & B_READ) == 0) { bp->b_error = EROFS; goto bad; } - /*******************************************************\ - * If it's a null transfer, return immediatly * - \*******************************************************/ + /* + * If it's a null transfer, return immediatly + */ if (bp->b_bcount == 0) { goto done; } - - /*******************************************************\ - * Decide which unit and partition we are talking about * - \*******************************************************/ - if(PARTITION(bp->b_dev) != RAW_PART) - { - if (!(cd->flags & CDHAVELABEL)) - { - bp->b_error = EIO; - goto bad; - } + /* + * Decide which unit and partition we are talking about + */ + if (PARTITION(bp->b_dev) != RAW_PART) { /* * do bounds checking, adjust transfer. if error, process. * if end of partition, just return */ - if (bounds_check_with_label(bp,&cd->disklabel,1) <= 0) + if (bounds_check_with_label(bp, &cd->disklabel, 1) <= 0) goto done; /* otherwise, process transfer request */ } - opri = SPLCD(); dp = &cd->buf_queue; - /*******************************************************\ - * Place it in the queue of disk activities for this disk* - \*******************************************************/ + /* + * 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* - \*******************************************************/ + /* + * 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; -bad: + return 0; /* XXX ??? is this the right return? */ + bad: bp->b_flags |= B_ERROR; -done: + done: - /*******************************************************\ - * Correctly set the buf to indicate a completed xfer * - \*******************************************************/ - bp->b_resid = bp->b_bcount; + /* + * Correctly set the buf to indicate a completed xfer + */ + bp->b_resid = bp->b_bcount; biodone(bp); - return; + 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 cd_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 cd_done*/ +/* + * 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) -int unit; + u_int32 unit; { - register struct buf *bp = 0; - register struct buf *dp; - struct scsi_xfer *xs; - struct scsi_rw_big cmd; - int blkno, nblk; - struct cd_data *cd; - struct partition *p ; - -#ifdef CDDEBUG - if(scsi_debug & PRINTROUTINES) printf("cdstart%d ",unit); -#endif /*CDDEBUG*/ - cd = cd_driver->cd_data[unit]; - /*******************************************************\ - * See if there is a buf to do and we are not already * - * doing one * - \*******************************************************/ - if(!cd->free_xfer) - { - return; /* none for us, unit already underway */ + 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(cd->xfer_block_wait) /* there is one, but a special waits */ - { - return; /* give the special that's waiting a chance to run */ + 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 */ - { + if ((bp = dp->b_actf) != NULL) { /* yes, an assign */ dp->b_actf = bp->av_forw; - } - else - { + } else { return; } - - xs=cd_get_xs(unit,0); /* ok we can grab it */ - xs->flags = INUSE; /* Now ours */ - /***************************************************************\ - * Should reject all queued entries if CDVALID is not true * - \***************************************************************/ - if(!(cd->flags & CDVALID)) - { - goto bad; /* no I/O.. media changed or something */ + /* + * 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 move the data into * - * a scsi_xfer definition and try start it * - * * - * 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) - { + /* + * 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*/ + /* what if something asks for 512 bytes not on a 2k boundary? *//*XXX */ - /*******************************************************\ - * Fill out the scsi command * - \*******************************************************/ + /* + * Fill out the scsi command + */ bzero(&cmd, sizeof(cmd)); - cmd.op_code = READ_BIG; - cmd.addr_3 = (blkno & 0xff000000) >> 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); - /*******************************************************\ - * Fill out the scsi_xfer structure * - * Note: we cannot sleep as we may be an interrupt * - \*******************************************************/ - xs->flags |= SCSI_NOSLEEP; - xs->adapter = cd->ctlr; - xs->targ = cd->targ; - xs->lu = cd->lu; - xs->retries = CD_RETRIES; - xs->timeout = 10000;/* 10000 millisecs for a disk !*/ - xs->cmd = (struct scsi_generic *)&cmd; - xs->cmdlen = sizeof(cmd); - xs->resid = bp->b_bcount; - xs->when_done = cd_done; - xs->done_arg = unit; - xs->done_arg2 = (int)xs; - xs->error = XS_NOERROR; - xs->bp = bp; - xs->data = (u_char *)bp->b_un.b_addr; - xs->datalen = bp->b_bcount; - - /*******************************************************\ - * Pass all this info to the scsi driver. * - \*******************************************************/ - if ( (*(cd->sc_sw->scsi_cmd))(xs) != SUCCESSFULLY_QUEUED) - { - printf("cd%d: oops not queued",unit); - goto bad; - } - cdqueues++; - return; -bad: xs->error = XS_DRIVER_STUFFUP; - cd_done(unit,xs); -} - -/*******************************************************\ -* This routine is called by the scsi interrupt when * -* the transfer is complete. (or failed) * -\*******************************************************/ -int cd_done(unit,xs) -int unit; -struct scsi_xfer *xs; -{ - struct buf *bp; - int retval; - struct cd_data *cd = cd_driver->cd_data[unit]; - -#ifdef CDDEBUG - if(scsi_debug & PRINTROUTINES) printf("cd_done%d ",unit); -#endif /*CDDEBUG*/ -#ifdef PARANOIA - if (! (xs->flags & INUSE)) /* paranoia always pays off */ - panic("scsi_xfer not in use!"); -#endif /*PARANOIA*/ - if(!(bp = xs->bp)) - { - wakeup(xs); - return 0; - } - switch(xs->error) - { - case XS_NOERROR: - bp->b_error = 0; - bp->b_resid = 0; - break; - - case XS_SENSE: - retval = (cd_interpret_sense(unit,xs)); - if(retval) - { - bp->b_flags |= B_ERROR; - bp->b_error = retval; - } - break; - - case XS_TIMEOUT: - printf("cd%d timeout\n",unit); - - case XS_BUSY: - /***********************************\ - * Just resubmit it straight back to * - * the SCSI driver to try it again * - \***********************************/ - if(xs->retries--) - { - xs->error = XS_NOERROR; - xs->flags &= ~ITSDONE; - if ((*(cd->sc_sw->scsi_cmd))(xs) - == SUCCESSFULLY_QUEUED) - { /* shhh! don't wake the job, ok? */ - /* don't tell cdstart either, */ - return 0; - } - /* xs->error is set by the scsi driver */ - } /* Fall through */ - - case XS_DRIVER_STUFFUP: - bp->b_flags |= B_ERROR; + 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; - break; - default: - printf("cd%d: unknown error category from scsi driver\n" - ,unit); - } - biodone(bp); - cd_free_xs(unit,xs,0); - cdstart(unit); /* If there's anything waiting.. do it */ - return 0; + bp->b_flags |= B_ERROR; + biodone(bp); + return; + } + cdqueues++; } -/*******************************************************\ -* Perform special action on behalf of the user * -* Knows about the internals of this device * -\*******************************************************/ +/* + * 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) { - int error = 0; - unsigned int opri; - unsigned char unit, part; + errval error = 0; + u_int32 opri; + u_int8 unit, part; register struct cd_data *cd; - - /*******************************************************\ - * Find the device that the user is talking about * - \*******************************************************/ + /* + * Find the device that the user is talking about + */ unit = UNIT(dev); part = PARTITION(dev); - cd = cd_driver->cd_data[unit]; -#ifdef CDDEBUG - if(scsi_debug & PRINTROUTINES) printf("cdioctl%d ",unit); -#endif /*CDDEBUG*/ - - /*******************************************************\ - * If the device is not valid.. abandon ship * - \*******************************************************/ - if (!(cd_driver->cd_data[unit]->flags & CDVALID)) - return(EIO); - switch(cmd) - { + 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; + error = EINVAL; break; case DIOCGDINFO: - *(struct disklabel *)addr = cd->disklabel; + *(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; - - case DIOCWDINFO: - case DIOCSDINFO: - if ((flag & FWRITE) == 0) - error = EBADF; - else - error = setdisklabel(&cd->disklabel, - (struct disklabel *)addr, - /*(cd->flags & DKFL_BSDLABEL) ? cd->openparts : */0, - 0); - if (error == 0) { - cd->flags |= CDHAVELABEL; - } - 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 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)) + 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)) + 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 - )); + 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)) + 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)) + 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 - )); + 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)) + 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)) + if (error = cd_set_mode(unit, &data)) break; - return(cd_play(unit,args->blk,args->len)); - + return (cd_play(unit, args->blk, args->len)); } break; case CDIOCREADSUBCHANNEL: { struct ioc_read_subchannel *args - = (struct ioc_read_subchannel *)addr; + = (struct ioc_read_subchannel *) addr; struct cd_sub_channel_info data; - int len=args->data_len; - if(len>sizeof(data)|| - len<sizeof(struct cd_sub_channel_header)) { - error=EINVAL; + 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)) { + 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; + 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,&th,sizeof(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)); + th.len = (th.len & 0xff) << 8 + ((th.len >> 8) & 0xff); + bcopy(&th, addr, sizeof th); } break; case CDIOREADTOCENTRYS: { - struct ioc_read_toc_entry *te= - (struct ioc_read_toc_entry *)addr; - struct cd_toc_entry data[65]; + 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; - int len=te->data_len; - th=(struct ioc_toc_header *)data; - - if(len>sizeof(data) || len<sizeof(struct cd_toc_entry)) { - error=EINVAL; - break; - } - if(error = cd_read_toc(unit,te->address_format, - te->starting_track, - data, - len)) + u_int32 len = te->data_len; + th = &data.header; + + if (len > sizeof(data.entries) || len < sizeof(struct cd_toc_entry)) { + error = EINVAL; break; - len=MIN(len,((((th->len&0xff)<<8)+((th->len>>8)))+ - sizeof(*th))); - if(copyout(th,te->data,len)!=0) { - error=EFAULT; } - + 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)) + 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; + 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)) + 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; @@ -941,148 +751,154 @@ cdioctl(dev_t dev, int cmd, caddr_t addr, int flag) 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)) + 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)) + 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)) + 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[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)) + 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)) + 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)) + 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)) + 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)) + 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)) + 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)) + 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)) + 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)) + if (error = cd_set_mode(unit, &data)) break; } break; case CDIOCRESUME: - error = cd_pause(unit,1); + error = cd_pause(unit, 1); break; case CDIOCPAUSE: - error = cd_pause(unit,0); + error = cd_pause(unit, 0); break; case CDIOCSTART: - error = cd_start_unit(unit,part,CD_START); + error = scsi_start_unit(cd->sc_link, 0); break; case CDIOCSTOP: - error = cd_start_unit(unit,part,CD_STOP); + error = scsi_stop_unit(cd->sc_link, 0, 0); break; case CDIOCEJECT: - error = cd_start_unit(unit,part,CD_EJECT); + 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: - scsi_debug = 0xfff; cd_debug = 0xfff; + cd->sc_link->flags |= (SDEV_DB1 | SDEV_DB2); break; case CDIOCCLRDEBUG: - scsi_debug = 0; cd_debug = 0; + cd->sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); break; case CDIOCRESET: - return(cd_reset(unit)); + return (cd_reset(unit)); break; default: - error = ENOTTY; + 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 * -* * -* EVENTUALLY take information about different * -* data tracks from the TOC and put it in the disklabel * -\*******************************************************/ -int cdgetdisklabel(unit) -unsigned char unit; +/* + * 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 dos_partition *dos_partition_p; + /*unsigned int n, m; */ + char *errstring; struct cd_data *cd; - cd = cd_driver->cd_data[unit]; - /*******************************************************\ - * If the info is already loaded, use it * - \*******************************************************/ - if(cd->flags & CDHAVELABEL) return; - - bzero(&cd->disklabel,sizeof(struct disklabel)); - /*******************************************************\ - * make partition 3 the whole disk in case of failure * - * then get pdinfo * - \*******************************************************/ - 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 = 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; @@ -1092,129 +908,120 @@ unsigned char unit; 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_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) * - \*******************************************************/ - cd->flags |= CDHAVELABEL; - return(ESUCCESS); -} - -/*******************************************************\ -* Get scsi driver to send a "are you ready" command * -\*******************************************************/ -cd_test_ready(unit,flags) -int unit,flags; -{ - struct scsi_test_unit_ready scsi_cmd; - - bzero(&scsi_cmd, sizeof(scsi_cmd)); - scsi_cmd.op_code = TEST_UNIT_READY; - - return (cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - 0, - 0, - 100000, - NULL, - flags)); + /* + * Signal to other users and routines that we now have a + * disklabel that represents the media (maybe) + */ + return (ESUCCESS); } - -/*******************************************************\ -* Find out form the device what it's capacity is * -\*******************************************************/ +/* + * 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; - int size; - int blksize; - - /*******************************************************\ - * make up a scsi command and ask the scsi driver to do * - * it for you. * - \*******************************************************/ + 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 * - \*******************************************************/ - if (cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - &rdcap, - sizeof(rdcap), - 2000, - NULL, - flags) != 0) - { + /* + * 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); + return (0); } else { - size = rdcap.addr_0 + 1 ; + 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_0; blksize += rdcap.length_1 << 8; blksize += rdcap.length_2 << 16; blksize += rdcap.length_3 << 24; } -#ifdef CDDEBUG - if(cd_debug)printf("cd%d: %d %d byte blocks\n",unit,size,blksize); -#endif /*CDDEBUG*/ - cd_driver->cd_data[unit]->params.disksize = size; - cd_driver->cd_data[unit]->params.blksize = blksize; - return(size); + 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 * -\*******************************************************/ -cd_get_mode(unit,data,page) -int unit; -struct cd_mode_data *data; -int page; + +/* + * 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; - int retval; + errval retval; bzero(&scsi_cmd, sizeof(scsi_cmd)); - bzero(data,sizeof(*data)); + bzero(data, sizeof(*data)); scsi_cmd.op_code = MODE_SENSE; scsi_cmd.page = page; scsi_cmd.length = sizeof(*data) & 0xff; - retval = cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - data, - sizeof(*data), - 20000, /* should be immed */ - NULL, - 0); + 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 * -\*******************************************************/ -cd_set_mode(unit,data) -int unit; -struct cd_mode_data *data; + +/* + * 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; @@ -1223,25 +1030,26 @@ struct cd_mode_data *data; scsi_cmd.byte2 |= SMS_PF; scsi_cmd.length = sizeof(*data) & 0xff; data->header.data_length = 0; - /*show_mem(data,sizeof(*data));/**/ - return (cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - data, - sizeof(*data), - 20000, /* should be immed */ - NULL, - 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 * -\*******************************************************/ -cd_play(unit,blk,len) -int unit,blk,len; + +/* + * 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; - int retval; + errval retval; bzero(&scsi_cmd, sizeof(scsi_cmd)); scsi_cmd.op_code = PLAY; @@ -1251,24 +1059,26 @@ int unit,blk,len; scsi_cmd.blk_addr[3] = blk & 0xff; scsi_cmd.xfer_len[0] = (len >> 8) & 0xff; scsi_cmd.xfer_len[1] = len & 0xff; - retval = cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - 0, - 0, - 200000, /* should be immed */ - NULL, - 0); - return(retval); + 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 * -\*******************************************************/ -cd_play_big(unit,blk,len) -int unit,blk,len; + +/* + * 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; - int retval; + errval retval; bzero(&scsi_cmd, sizeof(scsi_cmd)); scsi_cmd.op_code = PLAY_BIG; @@ -1280,24 +1090,26 @@ int unit,blk,len; scsi_cmd.xfer_len[1] = (len >> 16) & 0xff; scsi_cmd.xfer_len[2] = (len >> 8) & 0xff; scsi_cmd.xfer_len[3] = len & 0xff; - retval = cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - 0, - 0, - 20000, /* should be immed */ - NULL, - 0); - return(retval); + 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 * -\*******************************************************/ -cd_play_tracks(unit,strack,sindex,etrack,eindex) -int unit,strack,sindex,etrack,eindex; + +/* + * 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; - int retval; + errval retval; bzero(&scsi_cmd, sizeof(scsi_cmd)); scsi_cmd.op_code = PLAY_TRACK; @@ -1305,47 +1117,52 @@ int unit,strack,sindex,etrack,eindex; scsi_cmd.start_index = sindex; scsi_cmd.end_track = etrack; scsi_cmd.end_index = eindex; - retval = cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - 0, - 0, - 20000, /* should be immed */ - NULL, - 0); - return(retval); + 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 * -\*******************************************************/ -cd_play_msf(unit,startm,starts,startf,endm,ends,endf) -int unit,startm,starts,startf,endm,ends,endf; + +/* + * 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 (cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - 0, - 0, - 2000, - NULL, - 0)); + 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 * -\*******************************************************/ -cd_pause(unit,go) -int unit,go; + +/* + * Get scsi driver to send a "start up" command + */ +errval +cd_pause(unit, go) + u_int32 unit, go; { struct scsi_pause scsi_cmd; @@ -1353,534 +1170,137 @@ int unit,go; scsi_cmd.op_code = PAUSE; scsi_cmd.resume = go; - return (cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - 0, - 0, - 2000, - NULL, - 0)); -} -/*******************************************************\ -* Get scsi driver to send a "RESET" command * -\*******************************************************/ -cd_reset(unit) -int unit; -{ - return(cd_scsi_cmd(unit, - 0, - 0, - 0, - 0, - 2000, - NULL, - SCSI_RESET)); + 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 * -\*******************************************************/ -cd_start_unit(unit,part,type) -{ - struct scsi_start_stop scsi_cmd; - struct cd_data *cd = cd_driver->cd_data[unit]; - if(type==CD_EJECT - /*&& (cd->openparts == 0)*/)/* trouble is WE have it open *//*XXX*/ - { - cd_prevent_unit(unit,PR_ALLOW,0); - } - - bzero(&scsi_cmd, sizeof(scsi_cmd)); - scsi_cmd.op_code = START_STOP; - scsi_cmd.how |= (type==CD_START)?SSS_START:0; - scsi_cmd.how |= (type==CD_EJECT)?SSS_LOEJ:0; - - if (cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(scsi_cmd), - 0, - 0, - 2000, - NULL, - 0) != 0) { - return(ENXIO); - } else - return(0); -} -/*******************************************************\ -* Prevent or allow the user to remove the disk * -\*******************************************************/ -cd_prevent_unit(unit,type,flags) -int unit,type,flags; +/* + * Get scsi driver to send a "RESET" command + */ +errval +cd_reset(unit) + u_int32 unit; { - struct scsi_prevent scsi_cmd; - struct cd_data *cd = cd_driver->cd_data[unit]; - - if(type==PR_PREVENT - || ( type==PR_ALLOW && cd->openparts == 0 ))/*XXX*/ - { - bzero(&scsi_cmd, sizeof(scsi_cmd)); - scsi_cmd.op_code = PREVENT_ALLOW; - scsi_cmd.how = type; - if (cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(struct scsi_prevent), - 0, - 0, - 5000, - NULL, - 0) != 0) - { - if(!(flags & SCSI_SILENT)) - printf("cd%d: cannot prevent/allow\n", unit); - return(0); - } - } - return(1); + return (scsi_scsi_cmd(cd_driver.cd_data[unit]->sc_link, + 0, + 0, + 0, + 0, + CDRETRIES, + 2000, + NULL, + SCSI_RESET)); } -/******************************************************\ -* Read Subchannel * -\******************************************************/ - -cd_read_subchannel(unit,mode,format,track,data,len) -int unit,mode,format,len; -struct cd_sub_channel_info *data; +/* + * 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; - int error; + errval error; - bzero(&scsi_cmd,sizeof(scsi_cmd)); + bzero(&scsi_cmd, sizeof(scsi_cmd)); - scsi_cmd.op_code=READ_SUBCHANNEL; - if(mode==CD_MSF_FORMAT) + 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 cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(struct scsi_read_subchannel), - data, + 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, - 0); + SCSI_DATA_IN)); } -/*******************************************************\ -* Read Table of contents * -\*******************************************************/ -cd_read_toc(unit,mode,start,data,len) -int unit,mode,start,len; -struct cd_toc_entry *data; +/* + * 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; - int error; - int ntoc; - - bzero(&scsi_cmd,sizeof(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 cd_scsi_cmd(unit, - &scsi_cmd, - sizeof(struct scsi_read_toc), - data, - len, - 5000, + * 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, - 0); + 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. * -\*******************************************************/ - -int cd_get_parms(unit, flags) -{ - struct cd_data *cd = cd_driver->cd_data[unit]; - - /*******************************************************\ - * First check if we have it all loaded * - \*******************************************************/ - if(cd->flags & CDVALID) return(0); - /*******************************************************\ - * give a number of sectors so that sec * trks * cyls * - * is <= disk_size * - \*******************************************************/ - if(cd_size(unit, flags)) - { - cd->flags |= CDVALID; - return(0); - } - else - { - return(ENXIO); - } -} - -/*******************************************************\ -* close the device.. only called if we are the LAST * -* occurence of an open device * -\*******************************************************/ -cdclose(dev) -dev_t dev; -{ - unsigned char unit, part; - unsigned int old_priority; - - unit = UNIT(dev); - part = PARTITION(dev); -#ifdef CDDEBUG - if(scsi_debug & TRACEOPENS) - printf("cd%d: closing part %d\n",unit,part); -#endif - cd_driver->cd_data[unit]->partflags[part] &= ~CDOPEN; - cd_driver->cd_data[unit]->openparts &= ~(1 << part); - cd_prevent_unit(unit,PR_ALLOW,SCSI_SILENT); - return(0); -} - -/*******************************************************\ -* ask the scsi driver to perform a command for us. * -* Call it through the switch table, and tell it which * -* sub-unit we want, and what target and lu we wish to * -* talk to. Also tell it where to find the command * -* how long int is. * -* Also tell it where to read/write the data, and how * -* long the data is supposed to be * -\*******************************************************/ -int cd_scsi_cmd(unit,scsi_cmd,cmdlen,data_addr,datalen,timeout,bp,flags) - -int unit,flags; -struct scsi_generic *scsi_cmd; -int cmdlen; -int timeout; -u_char *data_addr; -int datalen; -struct buf *bp; +/* + * 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 scsi_xfer *xs; - int retval; - int s; - struct cd_data *cd = cd_driver->cd_data[unit]; - -#ifdef CDDEBUG - if(scsi_debug & PRINTROUTINES) printf("\ncd_scsi_cmd%d ",unit); -#endif /*CDDEBUG*/ -#ifdef PARANOID - if(!(cd->sc_sw)) /* If we have a scsi driver */ - { - /* !? how'd we GET here? */ - panic("attempt to run bad cd device"); - } -#endif /*PARANOID*/ - xs = cd_get_xs(unit,flags); /* should wait unless booting */ - if(!xs) - { - printf("cd%d: scsi_cmd controller busy" - " (this should never happen)\n",unit); - return(EBUSY); - } - xs->flags |= INUSE; - /*******************************************************\ - * Fill out the scsi_xfer structure * - \*******************************************************/ - xs->flags |= flags; - xs->adapter = cd->ctlr; - xs->targ = cd->targ; - xs->lu = cd->lu; - xs->retries = CD_RETRIES; - xs->timeout = timeout; - xs->cmd = scsi_cmd; - xs->cmdlen = cmdlen; - xs->data = data_addr; - xs->datalen = datalen; - xs->resid = datalen; - xs->when_done = (flags & SCSI_NOMASK) - ?(int (*)())0 - :cd_done; - xs->done_arg = unit; - xs->done_arg2 = (int)xs; - xs->bp = bp; -retry: xs->error = XS_NOERROR; - /*******************************************************\ - * Do the transfer. If we are polling we will return: * - * COMPLETE, Was poll, and cd_done has been called * - * HAD_ERROR, Was poll and an error was encountered * - * TRY_AGAIN_LATER, Adapter short resources, try again * - * * - * if under full steam (interrupts) it will return: * - * SUCCESSFULLY_QUEUED, will do a wakeup when complete * - * HAD_ERROR, had an erro before it could queue * - * TRY_AGAIN_LATER, (as for polling) * - * After the wakeup, we must still check if it succeeded * - * * - * If we have a bp however, all the error proccessing * - * and the buffer code both expect us to return straight * - * to them, so as soon as the command is queued, return * - \*******************************************************/ - retval = (*(cd->sc_sw->scsi_cmd))(xs); - if(bp) return retval; /* will sleep (or not) elsewhere */ - - /*******************************************************\ - * Only here for non I/O cmds. It's cheaper to process * - * the error status here than at interrupt time so * - * sd_done will have done nothing except wake us up. * - \*******************************************************/ - switch(retval) - { - case SUCCESSFULLY_QUEUED: - s = splbio(); - while(!(xs->flags & ITSDONE)) - sleep(xs,PRIBIO+1); - splx(s); - /* Fall through to check the result */ - - case HAD_ERROR: - switch(xs->error) - { - case XS_NOERROR: /* usually this one */ - retval = ESUCCESS; - break; - - case XS_SENSE: - retval = (cd_interpret_sense(unit,xs)); - break; - case XS_BUSY: - /* should sleep here 1 sec */ - /* fall through */ - case XS_TIMEOUT: - if(xs->retries-- ) - { - xs->flags &= ~ITSDONE; - goto retry; - } - /* fall through */ - case XS_DRIVER_STUFFUP: - retval = EIO; - break; - default: - retval = EIO; - printf("cd%d: unknown error category from scsi driver\n" - ,unit); - } - break; - case COMPLETE: - retval = ESUCCESS; - break; + struct cd_data *cd = cd_driver.cd_data[unit]; - case TRY_AGAIN_LATER: - if(xs->retries-- ) - { - if(tsleep( 0,PRIBIO + 2,"retry",hz * 2)) - { - xs->flags &= ~ITSDONE; - goto retry; - } - } - /* fall through */ - default: - retval = EIO; - } - - /*******************************************************\ - * we have finished doing the command, free the struct * - * and check if anyone else needs it * - \*******************************************************/ - cd_free_xs(unit,xs,flags); - cdstart(unit); /* check if anything is waiting for the xs */ - return(retval); -} -/***************************************************************\ -* Look at the returned sense and act on the error and detirmine * -* The unix error number to pass back... (0 = report no error) * -\***************************************************************/ - -int cd_interpret_sense(unit,xs) -int unit; -struct scsi_xfer *xs; -{ - struct scsi_sense_data *sense; - int key; - int silent; - int info; - struct cd_data *cd = cd_driver->cd_data[unit]; - - static char *error_mes[] = { "soft error (corrected)", - "not ready", "medium error", - "non-media hardware failure", "illegal request", - "unit attention", "readonly device", - "no data found", "vendor unique", - "copy aborted", "command aborted", - "search returned equal", "volume overflow", - "verify miscompare", "unknown error key" - }; - - /***************************************************************\ - * If the flags say errs are ok, then always return ok. * - \***************************************************************/ - if (xs->flags & SCSI_ERR_OK) return(ESUCCESS); - silent = (xs->flags & SCSI_SILENT); - - sense = &(xs->sense); -#ifdef CDDEBUG - if(cd_debug) - { - int count = 0; - printf("code%x valid%x\n" - ,sense->error_code & SSD_ERRCODE - ,sense->error_code & SSD_ERRCODE_VALID ? 1 : 0); - printf("seg%x key%x ili%x eom%x fmark%x\n" - ,sense->ext.extended.segment - ,sense->ext.extended.flags & SSD_KEY - ,sense->ext.extended.flags & SSD_ILI ? 1 : 0 - ,sense->ext.extended.flags & SSD_EOM ? 1 : 0 - ,sense->ext.extended.flags & SSD_FILEMARK ? 1 : 0); - printf("info: %x %x %x %x followed by %d extra bytes\n" - ,sense->ext.extended.info[0] - ,sense->ext.extended.info[1] - ,sense->ext.extended.info[2] - ,sense->ext.extended.info[3] - ,sense->ext.extended.extra_len); - printf("extra: "); - while(count < sense->ext.extended.extra_len) - { - printf ("%x ",sense->ext.extended.extra_bytes[count++]); - } - printf("\n"); - } -#endif /*CDDEBUG*/ - switch(sense->error_code & SSD_ERRCODE) - { - /***************************************************************\ - * If it's code 70, use the extended stuff and interpret the key * - \***************************************************************/ - case 0x71:/* delayed error */ - printf("cd%d: DELAYED ERROR, key = 0x%x\n",unit,key); - case 0x70: - if(sense->error_code & SSD_ERRCODE_VALID) - { - info = ntohl(*((long *)sense->ext.extended.info)); - } - else - { - info = 0; - } - - key=sense->ext.extended.flags & SSD_KEY; - - if (!silent) - { - printf("cd%d: %s", unit, error_mes[key - 1]); - if(sense->error_code & SSD_ERRCODE_VALID) - { - switch (key) - { - case 0x2: /* NOT READY */ - case 0x5: /* ILLEGAL REQUEST */ - case 0x6: /* UNIT ATTENTION */ - case 0x7: /* DATA PROTECT */ - break; - case 0x8: /* BLANK CHECK */ - printf(", requested size: %d (decimal)", - info); - break; - default: - printf(", info = %d (decimal)", info); - } - } - printf("\n"); - } - - switch (key) - { - case 0x0: /* NO SENSE */ - case 0x1: /* RECOVERED ERROR */ - xs->resid = 0; - case 0xc: /* EQUAL */ - return(ESUCCESS); - case 0x2: /* NOT READY */ - cd->flags &= ~(CDVALID | CDHAVELABEL); - return(ENODEV); - case 0x5: /* ILLEGAL REQUEST */ - return(EINVAL); - case 0x6: /* UNIT ATTENTION */ - cd->flags &= ~(CDVALID | CDHAVELABEL); - if (cd->openparts) - { - return(EIO); - } - return(ESUCCESS); - case 0x7: /* DATA PROTECT */ - return(EACCES); - case 0xd: /* VOLUME OVERFLOW */ - return(ENOSPC); - case 0x8: /* BLANK CHECK */ - return(ESUCCESS); - default: - return(EIO); - } - /*******************************\ - * Not code 70, just report it * - \*******************************/ - default: - if(!silent) - { - printf("cd%d: error code %d", unit, - sense->error_code & SSD_ERRCODE); - if(sense->error_code & SSD_ERRCODE_VALID) - { - printf(" at block no. %d (decimal)", - (sense->ext.unextended.blockhi <<16) - + (sense->ext.unextended.blockmed <<8) - + (sense->ext.unextended.blocklow )); - } - printf("\n"); - } - return(EIO); + /* + * 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); } - -#if 0 -show_mem(address,num) -unsigned char *address; -int num; -{ - int x,y; - printf("------------------------------"); - for (y = 0; y<num; y += 1) - { - if(!(y % 16)) - printf("\n%03d: ",y); - printf("%02x ",*address++); - } - printf("\n------------------------------\n"); -} -#endif |