1/* ------------------------------------------------------------------------ * 2 * i2c-parport.h I2C bus over parallel port * 3 * ------------------------------------------------------------------------ * 4 Copyright (C) 2003-2010 Jean Delvare <khali@linux-fr.org> 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 * ------------------------------------------------------------------------ */ 20 21#ifdef DATA 22#undef DATA 23#endif 24 25#define DATA 0 26#define STAT 1 27#define CTRL 2 28 29struct lineop { 30 u8 val; 31 u8 port; 32 u8 inverted; 33}; 34 35struct adapter_parm { 36 struct lineop setsda; 37 struct lineop setscl; 38 struct lineop getsda; 39 struct lineop getscl; 40 struct lineop init; 41 unsigned int smbus_alert:1; 42}; 43 44static struct adapter_parm adapter_parm[] = { 45 /* type 0: Philips adapter */ 46 { 47 .setsda = { 0x80, DATA, 1 }, 48 .setscl = { 0x08, CTRL, 0 }, 49 .getsda = { 0x80, STAT, 0 }, 50 .getscl = { 0x08, STAT, 0 }, 51 }, 52 /* type 1: home brew teletext adapter */ 53 { 54 .setsda = { 0x02, DATA, 0 }, 55 .setscl = { 0x01, DATA, 0 }, 56 .getsda = { 0x80, STAT, 1 }, 57 }, 58 /* type 2: Velleman K8000 adapter */ 59 { 60 .setsda = { 0x02, CTRL, 1 }, 61 .setscl = { 0x08, CTRL, 1 }, 62 .getsda = { 0x10, STAT, 0 }, 63 }, 64 /* type 3: ELV adapter */ 65 { 66 .setsda = { 0x02, DATA, 1 }, 67 .setscl = { 0x01, DATA, 1 }, 68 .getsda = { 0x40, STAT, 1 }, 69 .getscl = { 0x08, STAT, 1 }, 70 }, 71 /* type 4: ADM1032 evaluation board */ 72 { 73 .setsda = { 0x02, DATA, 1 }, 74 .setscl = { 0x01, DATA, 1 }, 75 .getsda = { 0x10, STAT, 1 }, 76 .init = { 0xf0, DATA, 0 }, 77 .smbus_alert = 1, 78 }, 79 /* type 5: ADM1025, ADM1030 and ADM1031 evaluation boards */ 80 { 81 .setsda = { 0x02, DATA, 1 }, 82 .setscl = { 0x01, DATA, 1 }, 83 .getsda = { 0x10, STAT, 1 }, 84 }, 85 /* type 6: Barco LPT->DVI (K5800236) adapter */ 86 { 87 .setsda = { 0x02, DATA, 1 }, 88 .setscl = { 0x01, DATA, 1 }, 89 .getsda = { 0x20, STAT, 0 }, 90 .getscl = { 0x40, STAT, 0 }, 91 .init = { 0xfc, DATA, 0 }, 92 }, 93 /* type 7: One For All JP1 parallel port adapter */ 94 { 95 .setsda = { 0x01, DATA, 0 }, 96 .setscl = { 0x02, DATA, 0 }, 97 .getsda = { 0x80, STAT, 1 }, 98 .init = { 0x04, DATA, 1 }, 99 }, 100}; 101 102static int type = -1; 103module_param(type, int, 0); 104MODULE_PARM_DESC(type, 105 "Type of adapter:\n" 106 " 0 = Philips adapter\n" 107 " 1 = home brew teletext adapter\n" 108 " 2 = Velleman K8000 adapter\n" 109 " 3 = ELV adapter\n" 110 " 4 = ADM1032 evaluation board\n" 111 " 5 = ADM1025, ADM1030 and ADM1031 evaluation boards\n" 112 " 6 = Barco LPT->DVI (K5800236) adapter\n" 113 " 7 = One For All JP1 parallel port adapter\n" 114); 115