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