1 /* ------------------------------------------------------------------------ * 2 * i2c-parport.h I2C bus over parallel port * 3 * ------------------------------------------------------------------------ * 4 Copyright (C) 2003-2010 Jean Delvare <jdelvare@suse.de> 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 17 #define PORT_DATA 0 18 #define PORT_STAT 1 19 #define PORT_CTRL 2 20 21 struct lineop { 22 u8 val; 23 u8 port; 24 u8 inverted; 25 }; 26 27 struct adapter_parm { 28 struct lineop setsda; 29 struct lineop setscl; 30 struct lineop getsda; 31 struct lineop getscl; 32 struct lineop init; 33 unsigned int smbus_alert:1; 34 }; 35 36 static const struct adapter_parm adapter_parm[] = { 37 /* type 0: Philips adapter */ 38 { 39 .setsda = { 0x80, PORT_DATA, 1 }, 40 .setscl = { 0x08, PORT_CTRL, 0 }, 41 .getsda = { 0x80, PORT_STAT, 0 }, 42 .getscl = { 0x08, PORT_STAT, 0 }, 43 }, 44 /* type 1: home brew teletext adapter */ 45 { 46 .setsda = { 0x02, PORT_DATA, 0 }, 47 .setscl = { 0x01, PORT_DATA, 0 }, 48 .getsda = { 0x80, PORT_STAT, 1 }, 49 }, 50 /* type 2: Velleman K8000 adapter */ 51 { 52 .setsda = { 0x02, PORT_CTRL, 1 }, 53 .setscl = { 0x08, PORT_CTRL, 1 }, 54 .getsda = { 0x10, PORT_STAT, 0 }, 55 }, 56 /* type 3: ELV adapter */ 57 { 58 .setsda = { 0x02, PORT_DATA, 1 }, 59 .setscl = { 0x01, PORT_DATA, 1 }, 60 .getsda = { 0x40, PORT_STAT, 1 }, 61 .getscl = { 0x08, PORT_STAT, 1 }, 62 }, 63 /* type 4: ADM1032 evaluation board */ 64 { 65 .setsda = { 0x02, PORT_DATA, 1 }, 66 .setscl = { 0x01, PORT_DATA, 1 }, 67 .getsda = { 0x10, PORT_STAT, 1 }, 68 .init = { 0xf0, PORT_DATA, 0 }, 69 .smbus_alert = 1, 70 }, 71 /* type 5: ADM1025, ADM1030 and ADM1031 evaluation boards */ 72 { 73 .setsda = { 0x02, PORT_DATA, 1 }, 74 .setscl = { 0x01, PORT_DATA, 1 }, 75 .getsda = { 0x10, PORT_STAT, 1 }, 76 }, 77 /* type 6: Barco LPT->DVI (K5800236) adapter */ 78 { 79 .setsda = { 0x02, PORT_DATA, 1 }, 80 .setscl = { 0x01, PORT_DATA, 1 }, 81 .getsda = { 0x20, PORT_STAT, 0 }, 82 .getscl = { 0x40, PORT_STAT, 0 }, 83 .init = { 0xfc, PORT_DATA, 0 }, 84 }, 85 /* type 7: One For All JP1 parallel port adapter */ 86 { 87 .setsda = { 0x01, PORT_DATA, 0 }, 88 .setscl = { 0x02, PORT_DATA, 0 }, 89 .getsda = { 0x80, PORT_STAT, 1 }, 90 .init = { 0x04, PORT_DATA, 1 }, 91 }, 92 /* type 8: VCT-jig */ 93 { 94 .setsda = { 0x04, PORT_DATA, 1 }, 95 .setscl = { 0x01, PORT_DATA, 1 }, 96 .getsda = { 0x40, PORT_STAT, 0 }, 97 .getscl = { 0x80, PORT_STAT, 1 }, 98 }, 99 }; 100 101 static int type = -1; 102 module_param(type, int, 0); 103 MODULE_PARM_DESC(type, 104 "Type of adapter:\n" 105 " 0 = Philips adapter\n" 106 " 1 = home brew teletext adapter\n" 107 " 2 = Velleman K8000 adapter\n" 108 " 3 = ELV adapter\n" 109 " 4 = ADM1032 evaluation board\n" 110 " 5 = ADM1025, ADM1030 and ADM1031 evaluation boards\n" 111 " 6 = Barco LPT->DVI (K5800236) adapter\n" 112 " 7 = One For All JP1 parallel port adapter\n" 113 " 8 = VCT-jig\n" 114 ); 115