amrio.h revision 105419 
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 * 3. The party using or redistributing the source code and binary forms
27 *    agrees to the above disclaimer and the terms and conditions set forth
28 *    herein.
29 *
30 * Additional Copyright (c) 2002 by Eric Moore under same license.
31 * Additional Copyright (c) 2002 LSI Logic Corporation
32 *
33 *	$FreeBSD: head/sys/dev/amr/amrio.h 105419 2002-10-18 21:29:14Z emoore $
34 */
35
36/*
37 * ioctl interface
38 */
39
40#include <sys/ioccom.h>
41
42/*
43 * Fetch the driver's interface version.
44 */
45#define AMR_IO_VERSION_NUMBER	0x01
46#define AMR_IO_VERSION	_IOR('A', 0x200, int)
47
48/*
49 * Pass a command from userspace through to the adapter.
50 *
51 * Note that in order to be code-compatible with the Linux
52 * interface where possible, the formatting of the au_cmd field is
53 * somewhat Interesting.
54 *
55 * For normal commands, the layout is (fields from struct amr_mailbox_ioctl):
56 *
57 * 0		mb_command
58 * 1		mb_channel
59 * 2		mb_param
60 * 3		mb_pad[0]
61 * 4		mb_drive
62 *
63 * For SCSI passthrough commands, the layout is:
64 *
65 * 0		AMR_CMD_PASS	(0x3)
66 * 1		reserved, 0
67 * 2		cdb length
68 * 3		cdb data
69 * 3+cdb_len	passthrough control byte (timeout, ars, islogical)
70 * 4+cdb_len	reserved, 0
71 * 5+cdb_len	channel
72 * 6+cdb_len	target
73 */
74
75struct amr_user_ioctl {
76    unsigned char	au_cmd[32];	/* command text from userspace */
77    void		*au_buffer;	/* data buffer in userspace */
78    unsigned long	au_length;	/* data buffer size (0 == no data) */
79    int			au_direction;	/* data transfer direction */
80#define AMR_IO_NODATA	0
81#define AMR_IO_READ	1
82#define AMR_IO_WRITE	2
83    int			au_status;	/* command status returned by adapter */
84};
85
86#define AMR_IO_COMMAND	_IOWR('A', 0x201, struct amr_user_ioctl)
87
88