ldvar.h revision 1.14 1 1.14 simonb /* $NetBSD: ldvar.h,v 1.14 2008/08/11 06:43:37 simonb Exp $ */
2 1.1 ad
3 1.1 ad /*-
4 1.1 ad * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 1.1 ad * All rights reserved.
6 1.1 ad *
7 1.1 ad * This code is derived from software contributed to The NetBSD Foundation
8 1.1 ad * by Andrew Doran.
9 1.1 ad *
10 1.1 ad * Redistribution and use in source and binary forms, with or without
11 1.1 ad * modification, are permitted provided that the following conditions
12 1.1 ad * are met:
13 1.1 ad * 1. Redistributions of source code must retain the above copyright
14 1.1 ad * notice, this list of conditions and the following disclaimer.
15 1.1 ad * 2. Redistributions in binary form must reproduce the above copyright
16 1.1 ad * notice, this list of conditions and the following disclaimer in the
17 1.1 ad * documentation and/or other materials provided with the distribution.
18 1.1 ad *
19 1.1 ad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.1 ad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.1 ad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.1 ad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.1 ad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.1 ad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.1 ad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.1 ad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.1 ad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.1 ad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.1 ad * POSSIBILITY OF SUCH DAMAGE.
30 1.1 ad */
31 1.1 ad
32 1.3 ad #ifndef _DEV_LDVAR_H_
33 1.3 ad #define _DEV_LDVAR_H_
34 1.1 ad
35 1.12 ad #include <sys/mutex.h>
36 1.12 ad
37 1.1 ad struct ld_softc {
38 1.1 ad struct device sc_dv;
39 1.1 ad struct disk sc_dk;
40 1.10 yamt struct bufq_state *sc_bufq;
41 1.12 ad kmutex_t sc_mutex;
42 1.1 ad #if NRND > 0
43 1.1 ad rndsource_element_t sc_rnd_source;
44 1.1 ad #endif
45 1.5 ad int sc_queuecnt; /* current h/w queue depth */
46 1.5 ad int sc_ncylinders; /* # cylinders */
47 1.5 ad int sc_nheads; /* # heads */
48 1.5 ad int sc_nsectors; /* # sectors per track */
49 1.1 ad
50 1.1 ad /*
51 1.1 ad * The following are filled by hardware specific attachment code.
52 1.1 ad */
53 1.5 ad int sc_flags; /* control flags */
54 1.8 dbj uint64_t sc_secperunit; /* # sectors in total */
55 1.5 ad int sc_secsize; /* sector size in bytes */
56 1.5 ad int sc_maxxfer; /* max xfer size in bytes */
57 1.5 ad int sc_maxqueuecnt; /* maximum h/w queue depth */
58 1.1 ad
59 1.1 ad int (*sc_dump)(struct ld_softc *, void *, int, int);
60 1.14 simonb int (*sc_flush)(struct ld_softc *, int);
61 1.1 ad int (*sc_start)(struct ld_softc *, struct buf *);
62 1.1 ad };
63 1.1 ad
64 1.14 simonb /* sc_flags */
65 1.7 thorpej #define LDF_ENABLED 0x001 /* device enabled */
66 1.7 thorpej #define LDF_WLABEL 0x008 /* label is writable */
67 1.7 thorpej #define LDF_LABELLING 0x010 /* writing label */
68 1.7 thorpej #define LDF_DRAIN 0x020 /* maxqueuecnt has changed; drain */
69 1.7 thorpej #define LDF_DETACH 0x040 /* detach pending */
70 1.7 thorpej #define LDF_KLABEL 0x080 /* keep label on close */
71 1.7 thorpej #define LDF_VLABEL 0x100 /* label is valid */
72 1.1 ad
73 1.14 simonb /* sc_flush() flags */
74 1.14 simonb #define LDFL_POLL 0x001 /* poll for completion */
75 1.14 simonb
76 1.4 ad int ldadjqparam(struct ld_softc *, int);
77 1.1 ad void ldattach(struct ld_softc *);
78 1.4 ad int ldbegindetach(struct ld_softc *, int);
79 1.4 ad void ldenddetach(struct ld_softc *);
80 1.1 ad void lddone(struct ld_softc *, struct buf *);
81 1.1 ad
82 1.3 ad #endif /* !_DEV_LDVAR_H_ */
83