xref: /src/sys/arch/mips/sibyte/include/sb1250_smbus.h

/*  *********************************************************************
    *  SB1250 Board Support Package
    *
    *  SMBUS Constants                          File: sb1250_smbus.h
    *
    *  This module contains constants and macros useful for
    *  manipulating the SB1250's SMbus devices.
    *
    *  SB1250 specification level:  0.2
    *
    *  Author:  Mitch Lichtenberg (mitch (at) sibyte.com)
    *
    *********************************************************************
    *
    *  Copyright 2000,2001
    *  Broadcom Corporation. All rights reserved.
    *
    *  This software is furnished under license and may be used and
    *  copied only in accordance with the following terms and
    *  conditions.  Subject to these conditions, you may download,
    *  copy, install, use, modify and distribute modified or unmodified
    *  copies of this software in source and/or binary form.  No title
    *  or ownership is transferred hereby.
    *
    *  1) Any source code used, modified or distributed must reproduce
    *     and retain this copyright notice and list of conditions as
    *     they appear in the source file.
    *
    *  2) No right is granted to use any trade name, trademark, or
    *     logo of Broadcom Corporation. Neither the "Broadcom
    *     Corporation" name nor any trademark or logo of Broadcom
    *     Corporation may be used to endorse or promote products
    *     derived from this software without the prior written
    *     permission of Broadcom Corporation.
    *
    *  3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
    *     IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
    *     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
    *     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
    *     SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
    *     PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR 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), EVEN IF ADVISED OF
    *     THE POSSIBILITY OF SUCH DAMAGE.
    ********************************************************************* */


#ifndef _SB1250_SMBUS_H
#define	_SB1250_SMBUS_H

#include "sb1250_defs.h"

/*
 * SMBus Clock Frequency Register (Table 14-2)
 */

#define	S_SMB_FREQ_DIV              0
#define	M_SMB_FREQ_DIV              _SB_MAKEMASK(13,S_SMB_FREQ_DIV)
#define	V_SMB_FREQ_DIV(x)           _SB_MAKEVALUE(x,S_SMB_FREQ_DIV)

#define	K_SMB_FREQ_400KHZ	    0x1F
#define	K_SMB_FREQ_100KHZ	    0x7D

#define	S_SMB_CMD                   0
#define	M_SMB_CMD                   _SB_MAKEMASK(8,S_SMB_CMD)
#define	V_SMB_CMD(x)                _SB_MAKEVALUE(x,S_SMB_CMD)

/*
 * SMBus control register (Table 14-4)
 */

#define	M_SMB_ERR_INTR              _SB_MAKEMASK1(0)
#define	M_SMB_FINISH_INTR           _SB_MAKEMASK1(1)
#define	M_SMB_DATA_OUT              _SB_MAKEMASK1(4)
#define	M_SMB_DATA_DIR              _SB_MAKEMASK1(5)
#define	M_SMB_DATA_DIR_OUTPUT       M_SMB_DATA_DIR
#define	M_SMB_CLK_OUT               _SB_MAKEMASK1(6)
#define	M_SMB_DIRECT_ENABLE         _SB_MAKEMASK1(7)

/*
 * SMBus status registers (Table 14-5)
 */

#define	M_SMB_BUSY                  _SB_MAKEMASK1(0)
#define	M_SMB_ERROR                 _SB_MAKEMASK1(1)
#define	M_SMB_ERROR_TYPE            _SB_MAKEMASK1(2)
#define	M_SMB_REF                   _SB_MAKEMASK1(6)
#define	M_SMB_DATA_IN               _SB_MAKEMASK1(7)

/*
 * SMBus Start/Command registers (Table 14-9)
 */

#define	S_SMB_ADDR                  0
#define	M_SMB_ADDR                  _SB_MAKEMASK(7,S_SMB_ADDR)
#define	V_SMB_ADDR(x)               _SB_MAKEVALUE(x,S_SMB_ADDR)
#define	G_SMB_ADDR(x)               _SB_GETVALUE(x,S_SMB_ADDR,M_SMB_ADDR)

#define	M_SMB_QDATA                 _SB_MAKEMASK1(7)

#define	S_SMB_TT                    8
#define	M_SMB_TT                    _SB_MAKEMASK(3,S_SMB_TT)
#define	V_SMB_TT(x)                 _SB_MAKEVALUE(x,S_SMB_TT)
#define	G_SMB_TT(x)                 _SB_GETVALUE(x,S_SMB_TT,M_SMB_TT)

#define	K_SMB_TT_WR1BYTE            0
#define	K_SMB_TT_WR2BYTE            1
#define	K_SMB_TT_WR3BYTE            2
#define	K_SMB_TT_CMD_RD1BYTE        3
#define	K_SMB_TT_CMD_RD2BYTE        4
#define	K_SMB_TT_RD1BYTE            5
#define	K_SMB_TT_QUICKCMD           6
#define	K_SMB_TT_EEPROMREAD         7

#define	V_SMB_TT_WR1BYTE	    V_SMB_TT(K_SMB_TT_WR1BYTE)
#define	V_SMB_TT_WR2BYTE	    V_SMB_TT(K_SMB_TT_WR2BYTE)
#define	V_SMB_TT_WR3BYTE	    V_SMB_TT(K_SMB_TT_WR3BYTE)
#define	V_SMB_TT_CMD_RD1BYTE	    V_SMB_TT(K_SMB_TT_CMD_RD1BYTE)
#define	V_SMB_TT_CMD_RD2BYTE	    V_SMB_TT(K_SMB_TT_CMD_RD2BYTE)
#define	V_SMB_TT_RD1BYTE	    V_SMB_TT(K_SMB_TT_RD1BYTE)
#define	V_SMB_TT_QUICKCMD	    V_SMB_TT(K_SMB_TT_QUICKCMD)
#define	V_SMB_TT_EEPROMREAD	    V_SMB_TT(K_SMB_TT_EEPROMREAD)

#define	M_SMB_PEC                   _SB_MAKEMASK1(15)

/*
 * SMBus Data Register (Table 14-6) and SMBus Extra Register (Table 14-7)
 */

#define	S_SMB_LB                    0
#define	M_SMB_LB                    _SB_MAKEMASK(8,S_SMB_LB)
#define	V_SMB_LB(x)                 _SB_MAKEVALUE(x,S_SMB_LB)

#define	S_SMB_MB                    8
#define	M_SMB_MB                    _SB_MAKEMASK(8,S_SMB_MB)
#define	V_SMB_MB(x)                 _SB_MAKEVALUE(x,S_SMB_MB)


/*
 * SMBus Packet Error Check register (Table 14-8)
 */

#define	S_SPEC_PEC                  0
#define	M_SPEC_PEC                  _SB_MAKEMASK(8,S_SPEC_PEC)
#define	V_SPEC_MB(x)                _SB_MAKEVALUE(x,S_SPEC_PEC)

#endif