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/*-
* ichsmb_reg.h
*
* Copyright (c) 2000 Whistle Communications, Inc.
* All rights reserved.
*
* Subject to the following obligations and disclaimer of warranty, use and
* redistribution of this software, in source or object code forms, with or
* without modifications are expressly permitted by Whistle Communications;
* provided, however, that:
* 1. Any and all reproductions of the source or object code must include the
* copyright notice above and the following disclaimer of warranties; and
* 2. No rights are granted, in any manner or form, to use Whistle
* Communications, Inc. trademarks, including the mark "WHISTLE
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
* such appears in the above copyright notice or in the software.
*
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Archie Cobbs <archie@freebsd.org>
*
* $FreeBSD$
*/
#ifndef _DEV_ICHSMB_ICHSMB_REG_H_
#define _DEV_ICHSMB_ICHSMB_REG_H_
/*
* Definitions for the SMBus controller logical device which is part of the
* Intel 81801AA (ICH) and 81801AB (ICH0) I/O controller hub chips.
*/
/*
* PCI configuration registers
*/
#define ICH_SMB_BASE 0x20 /* base address register */
#define ICH_HOSTC 0x40 /* host config register */
#define ICH_HOSTC_I2C_EN 0x04 /* enable i2c mode */
#define ICH_HOSTC_SMB_SMI_EN 0x02 /* SMI# instead of irq */
#define ICH_HOSTC_HST_EN 0x01 /* enable host cntrlr */
/*
* I/O registers
*/
#define ICH_HST_STA 0x00 /* host status */
#define ICH_HST_STA_BYTE_DONE_STS 0x80 /* byte send/rec'd */
#define ICH_HST_STA_INUSE_STS 0x40 /* device access mutex */
#define ICH_HST_STA_SMBALERT_STS 0x20 /* SMBALERT# signal */
#define ICH_HST_STA_FAILED 0x10 /* failed bus transaction */
#define ICH_HST_STA_BUS_ERR 0x08 /* transaction collision */
#define ICH_HST_STA_DEV_ERR 0x04 /* misc. smb device error */
#define ICH_HST_STA_INTR 0x02 /* command completed ok */
#define ICH_HST_STA_HOST_BUSY 0x01 /* command is running */
#define ICH_HST_CNT 0x02 /* host control */
#define ICH_HST_CNT_START 0x40 /* start command */
#define ICH_HST_CNT_LAST_BYTE 0x20 /* indicate last byte */
#define ICH_HST_CNT_SMB_CMD_QUICK 0x00 /* command: quick */
#define ICH_HST_CNT_SMB_CMD_BYTE 0x04 /* command: byte */
#define ICH_HST_CNT_SMB_CMD_BYTE_DATA 0x08 /* command: byte data */
#define ICH_HST_CNT_SMB_CMD_WORD_DATA 0x0c /* command: word data */
#define ICH_HST_CNT_SMB_CMD_PROC_CALL 0x10 /* command: process call */
#define ICH_HST_CNT_SMB_CMD_BLOCK 0x14 /* command: block */
#define ICH_HST_CNT_SMB_CMD_I2C_READ 0x18 /* command: i2c read */
#define ICH_HST_CNT_KILL 0x02 /* kill current transaction */
#define ICH_HST_CNT_INTREN 0x01 /* enable interrupt */
#define ICH_HST_CMD 0x03 /* host command */
#define ICH_XMIT_SLVA 0x04 /* transmit slave address */
#define ICH_XMIT_SLVA_READ 0x01 /* direction: read */
#define ICH_XMIT_SLVA_WRITE 0x00 /* direction: write */
#define ICH_D0 0x05 /* host data 0 */
#define ICH_D1 0x06 /* host data 1 */
#define ICH_BLOCK_DB 0x07 /* block data byte */
#endif /* _DEV_ICHSMB_ICHSMB_REG_H_ */
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