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