amrio.h revision 65245 
1/*-
2 * Copyright (c) 1999 Michael Smith
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$FreeBSD: head/sys/dev/amr/amrio.h 65245 2000-08-30 07:52:50Z msmith $
27 */
28
29/*
30 * ioctl interface
31 */
32
33#include <sys/ioccom.h>
34
35/*
36 * Fetch the driver's interface version.
37 */
38#define AMR_IO_VERSION_NUMBER	0x01
39#define AMR_IO_VERSION	_IOR('A', 0x200, int)
40
41/*
42 * Pass a command from userspace through to the adapter.
43 *
44 * Note that in order to be code-compatible with the Linux
45 * interface where possible, the formatting of the au_cmd field is
46 * somewhat Interesting.
47 *
48 * For normal commands, the layout is (fields from struct amr_mailbox_ioctl):
49 *
50 * 0		mb_command
51 * 1		mb_channel
52 * 2		mb_param
53 * 3		mb_pad[0]
54 * 4		mb_drive
55 *
56 * For SCSI passthrough commands, the layout is:
57 *
58 * 0		AMR_CMD_PASS	(0x3)
59 * 1		reserved, 0
60 * 2		cdb length
61 * 3		cdb data
62 * 3+cdb_len	passthrough control byte (timeout, ars, islogical)
63 * 4+cdb_len	reserved, 0
64 * 5+cdb_len	channel
65 * 6+cdb_len	target
66 */
67
68struct amr_user_ioctl {
69    unsigned char	au_cmd[32];	/* command text from userspace */
70    void		*au_buffer;	/* data buffer in userspace */
71    unsigned long	au_length;	/* data buffer size (0 == no data) */
72    int			au_direction;	/* data transfer direction */
73#define AMR_IO_NODATA	0
74#define AMR_IO_READ	1
75#define AMR_IO_WRITE	2
76    int			au_status;	/* command status returned by adapter */
77};
78
79#define AMR_IO_COMMAND	_IOWR('A', 0x201, struct amr_user_ioctl)
80
81