generic_parport.c

UrJTAG package is free software, covered by the GNU General Public License, and you are welcome to

/*
 * $Id: generic.c 1003 2008-02-10 10:00:30Z kawk $
 *
 * Copyright (C) 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 <[e-mail]>, 2003.
 *
 */

#include "sysdep.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "cable.h"
#include "chain.h"
#include "parport.h"
#include "generic.h"
#include "generic_parport.h"

#include <cmd.h>

#undef VERBOSE

#ifdef VERBOSE
void
print_vector(int len, char *vec)
{
	int i;
	for(i=0;i<len;i++) printf("%c",vec[i]?'1':'0');
}
#endif

int
generic_parport_connect( char *params[], cable_t *cable )
{
	generic_params_t *cable_params;
	parport_t *port;
	int i;

	if ( cmd_params( params ) < 3 ) {
	  printf( _("not enough arguments!\n") );
	  return 1;
	}
	  
	/* search parport driver list */
	for (i = 0; parport_drivers[i]; i++)
		if (strcasecmp( params[1], parport_drivers[i]->type ) == 0)
			break;
	if (!parport_drivers[i]) {
		printf( _("Unknown port driver: %s\n"), params[1] );
		return 2;
	}

	/* set up parport driver */
	port = parport_drivers[i]->connect( (const char **) &params[2],
					    cmd_params( params ) - 2 );

	if (port == NULL) {
		printf( _("Error: Cable connection failed!\n") );
		return 3;
	}

	cable_params = malloc( sizeof *cable_params );
	if (!cable_params) {
		printf( _("%s(%d) malloc failed!\n"), __FILE__, __LINE__);
		parport_drivers[i]->parport_free( port );
		return 4;
	}

	cable->link.port = port;
	cable->params = cable_params;
	cable->chain = NULL;

	return 0;
}

void
generic_parport_free( cable_t *cable )
{
	cable->link.port->driver->parport_free( cable->link.port );
	free( cable->params );
	free( cable );
}

void
generic_parport_done( cable_t *cable )
{
	parport_close( cable->link.port );
}

void
generic_parport_help( const char *cablename )
{
	printf( _(
		"Usage: cable %s parallel PORTADDR\n"
#if ENABLE_LOWLEVEL_PPDEV
		"   or: cable %s ppdev PPDEV\n"
#endif
#if HAVE_DEV_PPBUS_PPI_H
		"   or: cable %s ppi PPIDEV\n"
#endif
		"\n"
		"PORTADDR   parallel port address (e.g. 0x378)\n"
#if ENABLE_LOWLEVEL_PPDEV
		"PPDEV      ppdev device (e.g. /dev/parport0)\n"
#endif
#if HAVE_DEV_PPBUS_PPI_H
		"PPIDEF     ppi device (e.g. /dev/ppi0)\n"
#endif
		"\n"
	),
#if ENABLE_LOWLEVEL_PPDEV
    cablename,
#endif
#if HAVE_DEV_PPBUS_PPI_H
    cablename,
#endif
    cablename 
    );
}