1 /* $NetBSD: viapcibreg.h,v 1.2 2008/03/09 17:14:51 joerg Exp $ */
2 
3 /*-
4  * Copyright (c) 2005, 2006 Jared D. McNeill <jmcneill@invisible.ca>
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  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #ifndef _SYS_ARCH_I386_PCI_VIAPCIBREG_H
32 #define _SYS_ARCH_I386_PCI_VIAPCIBREG_H
33 
34 /* PCI configuration registers for SMB base address; chip dependent */
35 #define   SMB_BASE1           0x90
36 #define   SMB_BASE2           0x80
37 #define   SMB_BASE3           0xd0
38 
39 #define   SMB_HOST_CONFIG               0xd0 /* Lower word, actually */
40 #define   SMB_REVISION                  (SMB_HOST_CONFIG + 4)
41 
42 /* SMBus register offsets; from Linux and FreeBSD */
43 #define   SMBHSTSTS           0x00
44 #define             SMBHSTSTS_BUSY                0x01
45 #define             SMBHSTSTS_INTR                0x02
46 #define             SMBHSTSTS_ERROR               0x04
47 #define             SMBHSTSTS_COLLISION 0x08
48 #define             SMBHSTSTS_FAILED    0x10
49 #define   SMBHSLVSTS                    0x01
50 #define   SMBHSTCNT           0x02
51 #define             SMBHSTCNT_QUICK               0x00
52 #define             SMBHSTCNT_KILL                0x02
53 #define             SMBHSTCNT_SENDRECV  0x04
54 #define             SMBHSTCNT_BYTE                0x08
55 #define             SMBHSTCNT_WORD                0x0c
56 #define             SMBHSTCNT_BLOCK               0x14
57 #define             SMBHSTCNT_START               0x40
58 #define   SMBHSTCMD           0x03
59 #define   SMBHSTADD           0x04
60 #define   SMBHSTDAT0                    0x05
61 #define   SMBHSTDAT1                    0x06
62 #define   SMBBLKDAT           0x07
63 #define   SMBSLVCNT           0x08
64 #define   SMBSHDWCMD                    0x09
65 #define   SMBSLVEVT           0x0a
66 #define   SMBSLVDAT           0x0c
67 
68 #endif /* !_SYS_ARCH_I386_PCI_VIAPCIBREG_H */
69