xio.h revision 1.2 
1/* $NetBSD: xio.h,v 1.2 2007/03/04 06:00:54 christos Exp $ */
2
3/*
4 *
5 * Copyright (c) 1995 Charles D. Cranor
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *      This product includes software developed by Charles D. Cranor.
19 * 4. The name of the author may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/*
35 * x i o . h
36 *
37 * this file defines the software structure we use to ioctl the
38 * 753/7053.   this interface isn't set in stone and may (or may not)
39 * need adjustment.
40 *
41 * author: Chuck Cranor <chuck@ccrc.wustl.edu>
42 */
43
44/*
45 * xylogic ioctl interface
46 */
47
48struct xd_iocmd {
49  u_char cmd;       /* in: command number */
50  u_char subfn;     /* in: subfunction number */
51  u_char errno;     /* out: error number */
52  u_char tries;     /* out: number of tries */
53  u_short sectcnt;  /* in,out: sector count (hw_spt on read drive param) */
54  u_short dlen;     /* in: length of data buffer (good sanity check) */
55  u_long block;     /* in: block number */
56  void *dptr;     /* in: data buffer to do I/O from */
57};
58
59#ifndef DIOSXDCMD
60#define DIOSXDCMD _IOWR('x', 101, struct xd_iocmd) /* do xd command */
61#endif
62
63#define XD_IOCMD_MAXS 16 /* max number of sectors you can do */
64#define XD_IOCMD_HSZ   4 /* size of one header */
65#define XD_IOCMD_DMSZ 24 /* defect map size */
66