1/* ********************************************************************* 2 * SB1250 Board Support Package 3 * 4 * SMBUS Constants File: sb1250_smbus.h 5 * 6 * This module contains constants and macros useful for 7 * manipulating the SB1250's SMbus devices. 8 * 9 * SB1250 specification level: 01/02/2002 10 * 11 * Author: Mitch Lichtenberg (mpl@broadcom.com) 12 * 13 ********************************************************************* 14 * 15 * Copyright 2000,2001,2002,2003 16 * Broadcom Corporation. All rights reserved. 17 * 18 * This program is free software; you can redistribute it and/or 19 * modify it under the terms of the GNU General Public License as 20 * published by the Free Software Foundation; either version 2 of 21 * the License, or (at your option) any later version. 22 * 23 * This program is distributed in the hope that it will be useful, 24 * but WITHOUT ANY WARRANTY; without even the implied warranty of 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 26 * GNU General Public License for more details. 27 * 28 * You should have received a copy of the GNU General Public License 29 * along with this program; if not, write to the Free Software 30 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 31 * MA 02111-1307 USA 32 ********************************************************************* */ 33 34 35#ifndef _SB1250_SMBUS_H 36#define _SB1250_SMBUS_H 37 38#include "sb1250_defs.h" 39 40/* 41 * SMBus Clock Frequency Register (Table 14-2) 42 */ 43 44#define S_SMB_FREQ_DIV 0 45#define M_SMB_FREQ_DIV _SB_MAKEMASK(13,S_SMB_FREQ_DIV) 46#define V_SMB_FREQ_DIV(x) _SB_MAKEVALUE(x,S_SMB_FREQ_DIV) 47 48#define K_SMB_FREQ_400KHZ 0x1F 49#define K_SMB_FREQ_100KHZ 0x7D 50 51#define S_SMB_CMD 0 52#define M_SMB_CMD _SB_MAKEMASK(8,S_SMB_CMD) 53#define V_SMB_CMD(x) _SB_MAKEVALUE(x,S_SMB_CMD) 54 55/* 56 * SMBus control register (Table 14-4) 57 */ 58 59#define M_SMB_ERR_INTR _SB_MAKEMASK1(0) 60#define M_SMB_FINISH_INTR _SB_MAKEMASK1(1) 61#define M_SMB_DATA_OUT _SB_MAKEMASK1(4) 62#define M_SMB_DATA_DIR _SB_MAKEMASK1(5) 63#define M_SMB_DATA_DIR_OUTPUT M_SMB_DATA_DIR 64#define M_SMB_CLK_OUT _SB_MAKEMASK1(6) 65#define M_SMB_DIRECT_ENABLE _SB_MAKEMASK1(7) 66 67/* 68 * SMBus status registers (Table 14-5) 69 */ 70 71#define M_SMB_BUSY _SB_MAKEMASK1(0) 72#define M_SMB_ERROR _SB_MAKEMASK1(1) 73#define M_SMB_ERROR_TYPE _SB_MAKEMASK1(2) 74#define M_SMB_REF _SB_MAKEMASK1(6) 75#define M_SMB_DATA_IN _SB_MAKEMASK1(7) 76 77/* 78 * SMBus Start/Command registers (Table 14-9) 79 */ 80 81#define S_SMB_ADDR 0 82#define M_SMB_ADDR _SB_MAKEMASK(7,S_SMB_ADDR) 83#define V_SMB_ADDR(x) _SB_MAKEVALUE(x,S_SMB_ADDR) 84#define G_SMB_ADDR(x) _SB_GETVALUE(x,S_SMB_ADDR,M_SMB_ADDR) 85 86#define M_SMB_QDATA _SB_MAKEMASK1(7) 87 88#define S_SMB_TT 8 89#define M_SMB_TT _SB_MAKEMASK(3,S_SMB_TT) 90#define V_SMB_TT(x) _SB_MAKEVALUE(x,S_SMB_TT) 91#define G_SMB_TT(x) _SB_GETVALUE(x,S_SMB_TT,M_SMB_TT) 92 93#define K_SMB_TT_WR1BYTE 0 94#define K_SMB_TT_WR2BYTE 1 95#define K_SMB_TT_WR3BYTE 2 96#define K_SMB_TT_CMD_RD1BYTE 3 97#define K_SMB_TT_CMD_RD2BYTE 4 98#define K_SMB_TT_RD1BYTE 5 99#define K_SMB_TT_QUICKCMD 6 100#define K_SMB_TT_EEPROMREAD 7 101 102#define V_SMB_TT_WR1BYTE V_SMB_TT(K_SMB_TT_WR1BYTE) 103#define V_SMB_TT_WR2BYTE V_SMB_TT(K_SMB_TT_WR2BYTE) 104#define V_SMB_TT_WR3BYTE V_SMB_TT(K_SMB_TT_WR3BYTE) 105#define V_SMB_TT_CMD_RD1BYTE V_SMB_TT(K_SMB_TT_CMD_RD1BYTE) 106#define V_SMB_TT_CMD_RD2BYTE V_SMB_TT(K_SMB_TT_CMD_RD2BYTE) 107#define V_SMB_TT_RD1BYTE V_SMB_TT(K_SMB_TT_RD1BYTE) 108#define V_SMB_TT_QUICKCMD V_SMB_TT(K_SMB_TT_QUICKCMD) 109#define V_SMB_TT_EEPROMREAD V_SMB_TT(K_SMB_TT_EEPROMREAD) 110 111#define M_SMB_PEC _SB_MAKEMASK1(15) 112 113/* 114 * SMBus Data Register (Table 14-6) and SMBus Extra Register (Table 14-7) 115 */ 116 117#define S_SMB_LB 0 118#define M_SMB_LB _SB_MAKEMASK(8,S_SMB_LB) 119#define V_SMB_LB(x) _SB_MAKEVALUE(x,S_SMB_LB) 120 121#define S_SMB_MB 8 122#define M_SMB_MB _SB_MAKEMASK(8,S_SMB_MB) 123#define V_SMB_MB(x) _SB_MAKEVALUE(x,S_SMB_MB) 124 125 126/* 127 * SMBus Packet Error Check register (Table 14-8) 128 */ 129 130#define S_SPEC_PEC 0 131#define M_SPEC_PEC _SB_MAKEMASK(8,S_SPEC_PEC) 132#define V_SPEC_MB(x) _SB_MAKEVALUE(x,S_SPEC_PEC) 133 134 135#if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) 136 137#define S_SMB_CMDH 8 138#define M_SMB_CMDH _SB_MAKEMASK(8,S_SMBH_CMD) 139#define V_SMB_CMDH(x) _SB_MAKEVALUE(x,S_SMBH_CMD) 140 141#define M_SMB_EXTEND _SB_MAKEMASK1(14) 142 143#define M_SMB_DIR _SB_MAKEMASK1(13) 144 145#define S_SMB_DFMT 8 146#define M_SMB_DFMT _SB_MAKEMASK(3,S_SMB_DFMT) 147#define V_SMB_DFMT(x) _SB_MAKEVALUE(x,S_SMB_DFMT) 148#define G_SMB_DFMT(x) _SB_GETVALUE(x,S_SMB_DFMT,M_SMB_DFMT) 149 150#define K_SMB_DFMT_1BYTE 0 151#define K_SMB_DFMT_2BYTE 1 152#define K_SMB_DFMT_3BYTE 2 153#define K_SMB_DFMT_4BYTE 3 154#define K_SMB_DFMT_NODATA 4 155#define K_SMB_DFMT_CMD4BYTE 5 156#define K_SMB_DFMT_CMD5BYTE 6 157#define K_SMB_DFMT_RESERVED 7 158 159#define V_SMB_DFMT_1BYTE V_SMB_DFMT(K_SMB_DFMT_1BYTE) 160#define V_SMB_DFMT_2BYTE V_SMB_DFMT(K_SMB_DFMT_2BYTE) 161#define V_SMB_DFMT_3BYTE V_SMB_DFMT(K_SMB_DFMT_3BYTE) 162#define V_SMB_DFMT_4BYTE V_SMB_DFMT(K_SMB_DFMT_4BYTE) 163#define V_SMB_DFMT_NODATA V_SMB_DFMT(K_SMB_DFMT_NODATA) 164#define V_SMB_DFMT_CMD4BYTE V_SMB_DFMT(K_SMB_DFMT_CMD4BYTE) 165#define V_SMB_DFMT_CMD5BYTE V_SMB_DFMT(K_SMB_DFMT_CMD5BYTE) 166#define V_SMB_DFMT_RESERVED V_SMB_DFMT(K_SMB_DFMT_RESERVED) 167 168#endif /* 1250 PASS2 || 112x PASS1 */ 169 170#endif 171