diag_l2_mb1.h

Freediag contains various drivers (ISO9141, ISO14230, SAEJ1850-VPW, SAEJ1850-PWM) for different adap

/*
 *	freediag - Vehicle Diagnostic Utility
 *
 * CVSID $Id: diag_l2_mb1.h,v 1.2 2002/04/03 04:56:40 bjorn_helgaas Exp $
 *
 * Copyright (C) 2001 Richard Almeida & Ibex Ltd ([e-mail])
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *************************************************************************
 *
 * L2 driver for Mercedes Benz protocol used on things like the
 * EGS (auto gearbox controller) on 1999/2000/2001 cars
 * I have called this Mercedes Benz protocol 1, since all other control
 * units I have played with use ISO14230
 *
 */

int
diag_l2_proto_mb1_startcomms( diag_l2_conn_t	*d_l2_conn, u_int16_t flags,
	int bitrate, u_int8_t target, u_int8_t source);

/*
 * Decode the message header, and check the message is complete
 * and that the checksum is correct.
 *
 * Once we know the actual msglen, *msglen is filled in, else it is set to 0
 *
 * Data/len is received data/len
 */
int
diag_l2_proto_mb1_decode(u_int8_t *data, int len, int *msglen);

/*
 * Internal receive, reads a whole message from the ECU -
 * returns the data length of the packet received
 */
int
diag_l2_proto_mb1_int_recv(diag_l2_conn_t *d_l2_conn, int timeout, u_int8_t *data, int len);

/*
 * Read data, attempts to get complete set of responses
 *
 */
int
diag_l2_proto_mb1_recv(diag_l2_conn_t *d_l2_conn, int timeout,
	void (*callback)(void *handle, diag_msg_t *msg), void *handle);

/*
 * Send the data, using MB1 protocol
 */
int
diag_l2_proto_mb1_send(diag_l2_conn_t *d_l2_conn, diag_msg_t *msg);

diag_msg_t *
diag_l2_proto_mb1_request(diag_l2_conn_t *d_l2_conn, diag_msg_t *msg,
		int *errval);

/*
 * Timeout, called to send idle packet to keep link to ECU alive
 */
void
diag_l2_proto_mb1_timeout(diag_l2_conn_t *d_l2_conn);