/* * $Id: triton.c 1090 2008-02-24 14:52:44Z kawk $ * * Ka-Ro TRITON Starterkit II (PXA255/250) JTAG Cable * Copyright (C) 2002, 2003 ETC s.r.o. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. * * Written by Marcel Telka <marcel@telka.sk>, 2002, 2003. * Modified for TRITON by Andreas Mohr <andi@lisas.de>, 2003 * *//* * Ka-Ro electronics GmbH (http://www.karo-electronics.de) * TRITON Starterkit II (PXA255/250) JTAG Parallel Cable Driver * (boards probably produced by www.mite.cz) * Other vendors: www.strategic-test.com, www.fsforth.de (www.es-usa.com), *                www.directinsight.co.uk, www.quantum.com.pl,  * * This code has been verified to work with a Starterkit II, * but a Starterkit I might also work (however it has a differing JTAG cable * interface circuit, so all bets are off). */#include "sysdep.h"#include "cable.h"#include "parport.h"#include "chain.h"#include "generic.h"#include "generic_parport.h"/* * data D[7:0] (pins 9:2) */#define	TDI	1#define	TCK	0#define	TMS	2#define	TRST	3#define SRESET	4#define ENAB	5 /* not programmed, since it's always 0 *//* * status * * 7 - BUSY (pin 11) * 6 - ACK (pin 10) * 5 - PE (pin 12) * 4 - SEL (pin 13) * 3 - ERROR (pin 15) */#define	TDO 	7	static inttriton_init( cable_t *cable ){	if (parport_open( cable->link.port ))		return -1;	PARAM_TRST(cable) = 1;	PARAM_SRESET(cable) = 1;	return 0;}static voidtriton_clock( cable_t *cable, int tms, int tdi, int n ){	int i;	tms = tms ? 1 : 0;	tdi = tdi ? 1 : 0;	for (i = 0; i < n; i++) {		parport_set_data( cable->link.port, (PARAM_TRST(cable) << TRST) | (PARAM_SRESET(cable) << SRESET) | (0 << TCK) | (tms << TMS) | (tdi << TDI) );		cable_wait( cable );		parport_set_data( cable->link.port, (PARAM_TRST(cable) << TRST) | (PARAM_SRESET(cable) << SRESET) | (1 << TCK) | (tms << TMS) | (tdi << TDI) );		cable_wait( cable );	}}static inttriton_get_tdo( cable_t *cable ){	parport_set_data( cable->link.port, (PARAM_TRST(cable) << TRST) | (PARAM_SRESET(cable) << SRESET) | (0 << TCK) );	cable_wait( cable );	return (parport_get_status( cable->link.port ) >> TDO) & 1;}static inttriton_set_trst( cable_t *cable, int trst ){	PARAM_TRST(cable) = trst ? 1 : 0;	parport_set_data( cable->link.port, (PARAM_TRST(cable) << TRST) | (PARAM_SRESET(cable) << SRESET) );	return PARAM_TRST(cable);}cable_driver_t triton_cable_driver = {	"TRITON",	N_("Ka-Ro TRITON Starterkit II (PXA255/250) JTAG Cable"),	generic_parport_connect,	generic_disconnect,	generic_parport_free,	triton_init,	generic_parport_done,	generic_set_frequency,	triton_clock,	triton_get_tdo,	generic_transfer,	triton_set_trst,	generic_get_trst,	generic_flush_one_by_one,	generic_parport_help};