xref: /netbsd/sys/dev/scsipi/cdvar.h (revision 6550d01e)
1 /*	$NetBSD: cdvar.h,v 1.29 2009/10/19 18:41:16 bouyer 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  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #define	CDRETRIES	4
28 
29 struct cd_softc {
30 	device_t sc_dev;
31 	struct disk sc_dk;
32 	kmutex_t sc_lock;
33 
34 	int flags;
35 #define	CDF_WLABEL	0x04		/* label is writable */
36 #define	CDF_LABELLING	0x08		/* writing label */
37 #define	CDF_ANCIENT	0x10		/* disk is ancient; for minphys */
38 
39 	struct scsipi_periph *sc_periph;
40 
41 	struct cd_parms {
42 		u_int blksize;
43 		u_long disksize;	/* total number sectors */
44 		u_long disksize512;	/* total number sectors */
45 	} params;
46 
47 	struct bufq_state *buf_queue;
48 	struct callout sc_callout;
49 
50 #if NRND > 0
51 	rndsource_element_t	rnd_source;
52 #endif
53 };
54