xref: /netbsd-src/sys/arch/sun3/dev/xio.h (revision 03daa790ebb1227f96803546c28ec9033628154d)
1 /* $NetBSD: xio.h,v 1.5 2024/12/20 23:52:00 tsutsui Exp $ */
2 
3 /*
4  * Copyright (c) 1995 Charles D. Cranor
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 /*
29  * x i o . h
30  *
31  * this file defines the software structure we use to ioctl the
32  * 753/7053.   this interface isn't set in stone and may (or may not)
33  * need adjustment.
34  *
35  * author: Chuck Cranor <chuck@netbsd>
36  */
37 
38 /*
39  * xylogic ioctl interface
40  */
41 
42 #include <sys/ioccom.h>
43 
44 struct xd_iocmd {
45   u_char cmd;       /* in: command number */
46   u_char subfn;     /* in: subfunction number */
47   u_char errno;     /* out: error number */
48   u_char tries;     /* out: number of tries */
49   u_short sectcnt;  /* in,out: sector count (hw_spt on read drive param) */
50   u_short dlen;     /* in: length of data buffer (good sanity check) */
51   u_long block;     /* in: block number */
52   void *dptr;     /* in: data buffer to do I/O from */
53 };
54 
55 #ifndef DIOSXDCMD
56 #define DIOSXDCMD _IOWR('x', 101, struct xd_iocmd) /* do xd command */
57 #endif
58 
59 #define XD_IOCMD_MAXS 16 /* max number of sectors you can do */
60 #define XD_IOCMD_HSZ   4 /* size of one header */
61 #define XD_IOCMD_DMSZ 24 /* defect map size */
62