1 | /* $NetBSD: ldvar.h,v 1.28 2016/09/16 15:20:50 jdolecek Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2000 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Andrew Doran. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #ifndef _DEV_LDVAR_H_ |
33 | #define _DEV_LDVAR_H_ |
34 | |
35 | #include <sys/mutex.h> |
36 | #include <sys/rndsource.h> |
37 | |
38 | #include <dev/dkvar.h> /* for dk_softc */ |
39 | |
40 | struct ld_softc { |
41 | struct dk_softc sc_dksc; |
42 | kmutex_t sc_mutex; |
43 | kcondvar_t sc_drain; |
44 | |
45 | int sc_queuecnt; /* current h/w queue depth */ |
46 | int sc_ncylinders; /* # cylinders */ |
47 | int sc_nheads; /* # heads */ |
48 | int sc_nsectors; /* # sectors per track */ |
49 | uint64_t sc_disksize512; |
50 | |
51 | /* |
52 | * The following are filled by hardware specific attachment code. |
53 | */ |
54 | device_t sc_dv; |
55 | int sc_flags; /* control flags */ |
56 | uint64_t sc_secperunit; /* # sectors in total */ |
57 | int sc_secsize; /* sector size in bytes */ |
58 | int sc_maxxfer; /* max xfer size in bytes */ |
59 | int sc_maxqueuecnt; /* maximum h/w queue depth */ |
60 | |
61 | int (*sc_dump)(struct ld_softc *, void *, int, int); |
62 | int (*sc_flush)(struct ld_softc *, int); |
63 | int (*sc_start)(struct ld_softc *, struct buf *); |
64 | int (*sc_discard)(struct ld_softc *, off_t, off_t); |
65 | }; |
66 | |
67 | /* sc_flags */ |
68 | #define LDF_ENABLED 0x001 /* device enabled */ |
69 | #define LDF_DRAIN 0x020 /* maxqueuecnt has changed; drain */ |
70 | |
71 | /* sc_flush() flags */ |
72 | #define LDFL_POLL 0x001 /* poll for completion */ |
73 | |
74 | int ldadjqparam(struct ld_softc *, int); |
75 | void ldattach(struct ld_softc *, const char *); |
76 | int ldbegindetach(struct ld_softc *, int); |
77 | void ldenddetach(struct ld_softc *); |
78 | void lddone(struct ld_softc *, struct buf *); |
79 | |
80 | #endif /* !_DEV_LDVAR_H_ */ |
81 | |