xref: /netbsd-src/sys/dev/scsipi/cdvar.h (revision 4472dbe5e3bd91ef2540bada7a7ca7384627ff9b)
1 /*	$NetBSD: cdvar.h,v 1.12 2000/01/21 23:40:00 thorpej Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 Manuel Bouyer.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by Charles M. Hannum.
17  * 4. The name of the author may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #define	CDRETRIES	4
33 
34 struct cd_ops;
35 
36 struct cd_softc {
37 	struct device sc_dev;
38 	struct disk sc_dk;
39 
40 	int flags;
41 #define	CDF_LOCKED	0x01
42 #define	CDF_WANTED	0x02
43 #define	CDF_WLABEL	0x04		/* label is writable */
44 #define	CDF_LABELLING	0x08		/* writing label */
45 #define	CDF_ANCIENT	0x10		/* disk is ancient; for minphys */
46 	struct scsipi_link *sc_link;	/* contains our targ, lun, etc. */
47 	struct cd_parms {
48 		int blksize;
49 		u_long disksize;	/* total number sectors */
50 	} params;
51 	struct buf_queue buf_queue;
52 	char name[16]; /* product name, for default disklabel */
53 	const struct cd_ops *sc_ops;	/* our bus-dependent ops vector */
54 
55 #if NRND > 0
56 	rndsource_element_t	rnd_source;
57 #endif
58 };
59 
60 struct cd_ops {
61 	int	(*cdo_setchan) __P((struct cd_softc *, int, int, int, int,
62 		    int));
63 	int	(*cdo_getvol) __P((struct cd_softc *, struct ioc_vol *, int));
64 	int	(*cdo_setvol) __P((struct cd_softc *, const struct ioc_vol *,
65 		    int));
66 	int	(*cdo_set_pa_immed) __P((struct cd_softc *, int));
67 	int	(*cdo_load_unload) __P((struct cd_softc *, int, int));
68 };
69 
70 void cdattach __P((struct device *, struct cd_softc *, struct scsipi_link *,
71     const struct cd_ops *));
72 int cdactivate __P((struct device *, enum devact));
73 int cddetach __P((struct device *, int));
74