107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* ------------------------------------------------------------------------ *
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* i2c-parport.h I2C bus over parallel port *
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* ------------------------------------------------------------------------ *
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Copyright (C) 2003-2010 Jean Delvare <jdelvare@suse.de>
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* ------------------------------------------------------------------------ */
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#define PORT_DATA 0
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#define PORT_STAT 1
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#define PORT_CTRL 2
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struct lineop {
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u8 val;
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u8 port;
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u8 inverted;
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};
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struct adapter_parm {
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struct lineop setsda;
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struct lineop setscl;
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struct lineop getsda;
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struct lineop getscl;
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struct lineop init;
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unsigned int smbus_alert:1;
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};
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static const struct adapter_parm adapter_parm[] = {
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/* type 0: Philips adapter */
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{
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.setsda = { 0x80, PORT_DATA, 1 },
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.setscl = { 0x08, PORT_CTRL, 0 },
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.getsda = { 0x80, PORT_STAT, 0 },
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.getscl = { 0x08, PORT_STAT, 0 },
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},
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/* type 1: home brew teletext adapter */
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{
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.setsda = { 0x02, PORT_DATA, 0 },
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.setscl = { 0x01, PORT_DATA, 0 },
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.getsda = { 0x80, PORT_STAT, 1 },
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},
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/* type 2: Velleman K8000 adapter */
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{
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.setsda = { 0x02, PORT_CTRL, 1 },
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.setscl = { 0x08, PORT_CTRL, 1 },
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.getsda = { 0x10, PORT_STAT, 0 },
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},
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/* type 3: ELV adapter */
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{
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.setsda = { 0x02, PORT_DATA, 1 },
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.setscl = { 0x01, PORT_DATA, 1 },
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.getsda = { 0x40, PORT_STAT, 1 },
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.getscl = { 0x08, PORT_STAT, 1 },
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},
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/* type 4: ADM1032 evaluation board */
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{
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.setsda = { 0x02, PORT_DATA, 1 },
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.setscl = { 0x01, PORT_DATA, 1 },
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.getsda = { 0x10, PORT_STAT, 1 },
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.init = { 0xf0, PORT_DATA, 0 },
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.smbus_alert = 1,
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},
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/* type 5: ADM1025, ADM1030 and ADM1031 evaluation boards */
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{
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.setsda = { 0x02, PORT_DATA, 1 },
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.setscl = { 0x01, PORT_DATA, 1 },
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.getsda = { 0x10, PORT_STAT, 1 },
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},
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/* type 6: Barco LPT->DVI (K5800236) adapter */
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{
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.setsda = { 0x02, PORT_DATA, 1 },
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.setscl = { 0x01, PORT_DATA, 1 },
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.getsda = { 0x20, PORT_STAT, 0 },
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.getscl = { 0x40, PORT_STAT, 0 },
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.init = { 0xfc, PORT_DATA, 0 },
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},
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/* type 7: One For All JP1 parallel port adapter */
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{
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.setsda = { 0x01, PORT_DATA, 0 },
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.setscl = { 0x02, PORT_DATA, 0 },
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.getsda = { 0x80, PORT_STAT, 1 },
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.init = { 0x04, PORT_DATA, 1 },
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},
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/* type 8: VCT-jig */
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{
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.setsda = { 0x04, PORT_DATA, 1 },
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.setscl = { 0x01, PORT_DATA, 1 },
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.getsda = { 0x40, PORT_STAT, 0 },
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.getscl = { 0x80, PORT_STAT, 1 },
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},
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};
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static int type = -1;
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module_param(type, int, 0);
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MODULE_PARM_DESC(type,
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"Type of adapter:\n"
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" 0 = Philips adapter\n"
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" 1 = home brew teletext adapter\n"
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" 2 = Velleman K8000 adapter\n"
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" 3 = ELV adapter\n"
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" 4 = ADM1032 evaluation board\n"
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" 5 = ADM1025, ADM1030 and ADM1031 evaluation boards\n"
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" 6 = Barco LPT->DVI (K5800236) adapter\n"
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" 7 = One For All JP1 parallel port adapter\n"
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" 8 = VCT-jig\n"
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);
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