xref: /netbsd/sys/dev/vme/xio.h (revision bf9ec67e)
1 /* $NetBSD: xio.h,v 1.2 1998/08/22 15:11:02 mrg 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 
48 struct 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_int block;	/* in: block number */
56 	caddr_t 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