1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1998 Nicolas Souchu
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 AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 */
29#ifndef __SMB_H
30#define __SMB_H
31
32#include <sys/ioccom.h>
33
34struct smbcmd {
35 u_char cmd;
36 u_char reserved;
37 u_short op;
38 union {
39 char byte;
40 char buf[2];
41 short word;
42 } wdata;
43 union {
44 char byte;
45 char buf[2];
46 short word;
47 } rdata;
48 int slave;
49 char *wbuf; /* use wdata if NULL */
50 int wcount;
51 char *rbuf; /* use rdata if NULL */
52 int rcount;
53};
54
55/*
56 * SMBus spec 2.0 says block transfers may be at most 32 bytes.
57 */
58#define SMB_MAXBLOCKSIZE 32
59
60#define SMB_QUICK_WRITE _IOW('i', 1, struct smbcmd)
61#define SMB_QUICK_READ _IOW('i', 2, struct smbcmd)
62#define SMB_SENDB _IOW('i', 3, struct smbcmd)
63#define SMB_RECVB _IOWR('i', 4, struct smbcmd)
64#define SMB_WRITEB _IOW('i', 5, struct smbcmd)
65#define SMB_WRITEW _IOW('i', 6, struct smbcmd)
66#define SMB_READB _IOWR('i', 7, struct smbcmd)
67#define SMB_READW _IOWR('i', 8, struct smbcmd)
68#define SMB_PCALL _IOWR('i', 9, struct smbcmd)
69#define SMB_BWRITE _IOW('i', 10, struct smbcmd)
70#define SMB_BREAD _IOWR('i', 11, struct smbcmd)
71#define SMB_OLD_TRANS _IOWR('i', 12, struct smbcmd)
72
73#endif