1 /* $NetBSD: ldvar.h,v 1.11 2005/12/11 12:20:53 christos Exp $ */
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
42 #include <sys/mutex.h>
47 struct bufq_state
*sc_bufq
;
50 rndsource_element_t sc_rnd_source
;
52 int sc_queuecnt
; /* current h/w queue depth */
53 int sc_ncylinders
; /* # cylinders */
54 int sc_nheads
; /* # heads */
55 int sc_nsectors
; /* # sectors per track */
58 * The following are filled by hardware specific attachment code.
60 int sc_flags
; /* control flags */
61 uint64_t sc_secperunit
; /* # sectors in total */
62 int sc_secsize
; /* sector size in bytes */
63 int sc_maxxfer
; /* max xfer size in bytes */
64 int sc_maxqueuecnt
; /* maximum h/w queue depth */
66 int (*sc_dump
)(struct ld_softc
*, void *, int, int);
67 int (*sc_flush
)(struct ld_softc
*);
68 int (*sc_start
)(struct ld_softc
*, struct buf
*);
71 #define LDF_ENABLED 0x001 /* device enabled */
72 #define LDF_WLABEL 0x008 /* label is writable */
73 #define LDF_LABELLING 0x010 /* writing label */
74 #define LDF_DRAIN 0x020 /* maxqueuecnt has changed; drain */
75 #define LDF_DETACH 0x040 /* detach pending */
76 #define LDF_KLABEL 0x080 /* keep label on close */
77 #define LDF_VLABEL 0x100 /* label is valid */
79 int ldadjqparam(struct ld_softc
*, int);
80 void ldattach(struct ld_softc
*);
81 int ldbegindetach(struct ld_softc
*, int);
82 void ldenddetach(struct ld_softc
*);
83 void lddone(struct ld_softc
*, struct buf
*);
85 #endif /* !_DEV_LDVAR_H_ */