xref: /netbsd-src/sys/dev/vme/xio.h (revision 1fbab01a9353563bcc435f692ca5268e5626005a)
1 /* $NetBSD: xio.h,v 1.6 2015/09/06 06:01:01 dholland 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 
45 struct xd_iocmd {
46 	u_char cmd;	/* in: command number */
47 	u_char subfn;	/* in: subfunction number */
48 	u_char errnum;	/* out: error number */
49 	u_char tries;	/* out: number of tries */
50 	u_short sectcnt;/* in,out: sector count (hw_spt on read drive param) */
51 	u_short dlen;	/* in: length of data buffer (good sanity check) */
52 	u_int block;	/* in: block number */
53 	void *dptr;	/* in: data buffer to do I/O from */
54 };
55 
56 #ifndef DIOSXDCMD
57 #define DIOSXDCMD _IOWR('x', 101, struct xd_iocmd) /* do xd command */
58 #endif
59 
60 #define XD_IOCMD_MAXS 16 /* max number of sectors you can do */
61 #define XD_IOCMD_HSZ   4 /* size of one header */
62 #define XD_IOCMD_DMSZ 24 /* defect map size */
63