sys/scsi/st.c

83 #define STMINOR(unit, mode)	(((unit) << 4) + (mode))
99 struct mode {
108 #define	ST_Q_UNIMODAL		0x0004	/* unimode drive rejects mode select */
109 	struct mode mode;
181 	u_int quirks;		/* quirks for the open mode           */
198 	struct mode mode;
281 	/* Get any quirks and mode information. */
289 		st->mode = finger->quirkdata.mode;
291 		if (st->mode.blksize != 0)
293 		if (st->mode.density != 0)
428 	 * Make sure that a tape opened in write-only mode will have
447 stclose(dev_t dev, int flags, int mode, struct proc *p)
553 		st->density = st->mode.density;
563 		st->blksize = st->mode.blksize;
571 		printf("%s: cannot set selected mode\n", st->sc_dev.dv_xname);
621  * Given all we know about the device, media, mode, 'quirks' and
630 	SC_DEBUG(link, SDEV_DB2, ("starting block mode decision\n"));
702 	    ("Give up and default to variable mode\n"));
921 	 * Handle "fixed-block-mode" tape drives by using the
1099 		g->mt_mblksiz = st->mode.blksize;
1100 		g->mt_mdensity = st->mode.density;
1168 		case MTSETBSIZ:	/* Set block size for device and mode. */
1183 		case MTSETDNSTY:	/* Set density for device and mode. */
1226 	 * Check that the mode being asked for is aggreeable to the
1230 		printf("%s: cannot set selected mode\n", st->sc_dev.dv_xname);
1245 		st->mode.blksize = st->blksize;
1249 		st->mode.density = st->density;
1371 	 * Ask for page 0 (vendor specific) mode sense data.
1414  * set it into the desire mode etc.
1437 	 * This quirk deals with drives that have only one valid mode and think
1438 	 * this gives them license to reject all mode selects, even if the
1439 	 * selected mode is the one that is supported.
1461 	 * Ask for page 0 (vendor specific) mode sense data.
1488 	 * Set up for a mode select.