/* $NetBSD: viapcibreg.h,v 1.2 2008/03/09 17:14:51 joerg Exp $ */

/*-
 * Copyright (c) 2005, 2006 Jared D. McNeill <jmcneill@invisible.ca>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions, and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _SYS_ARCH_I386_PCI_VIAPCIBREG_H
#define _SYS_ARCH_I386_PCI_VIAPCIBREG_H

/* PCI configuration registers for SMB base address; chip dependent */
#define SMB_BASE1               0x90
#define SMB_BASE2               0x80
#define SMB_BASE3               0xd0

#define SMB_HOST_CONFIG         0xd0 /* Lower word, actually */
#define SMB_REVISION            (SMB_HOST_CONFIG + 4)

/* SMBus register offsets; from Linux and FreeBSD */
#define SMBHSTSTS               0x00
#define         SMBHSTSTS_BUSY          0x01
#define         SMBHSTSTS_INTR          0x02
#define         SMBHSTSTS_ERROR         0x04
#define         SMBHSTSTS_COLLISION     0x08
#define         SMBHSTSTS_FAILED        0x10
#define SMBHSLVSTS              0x01
#define SMBHSTCNT               0x02
#define         SMBHSTCNT_QUICK         0x00
#define         SMBHSTCNT_KILL          0x02
#define         SMBHSTCNT_SENDRECV      0x04
#define         SMBHSTCNT_BYTE          0x08
#define         SMBHSTCNT_WORD          0x0c
#define         SMBHSTCNT_BLOCK         0x14
#define         SMBHSTCNT_START         0x40
#define SMBHSTCMD               0x03
#define SMBHSTADD               0x04
#define SMBHSTDAT0              0x05
#define SMBHSTDAT1              0x06
#define SMBBLKDAT               0x07
#define SMBSLVCNT               0x08
#define SMBSHDWCMD              0x09
#define SMBSLVEVT               0x0a
#define SMBSLVDAT               0x0c

#endif /* !_SYS_ARCH_I386_PCI_VIAPCIBREG_H */