/* ********************************************************************* * 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@sibyte.com) * ********************************************************************* * * Copyright 2000,2001 * Broadcom Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA ********************************************************************* */ #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