11.3Schristos/*	$NetBSD: remote-sl.h,v 1.3 2005/12/11 12:19:44 christos Exp $ */
21.1Soki
31.1Soki/*
41.1Soki * Copyright (c) 1992, 1993
51.1Soki *	The Regents of the University of California.  All rights reserved.
61.1Soki *
71.1Soki * This software was developed by the Computer Systems Engineering group
81.1Soki * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
91.1Soki * contributed to Berkeley.
101.1Soki *
111.1Soki * All advertising materials mentioning features or use of this software
121.1Soki * must display the following acknowledgement:
131.1Soki *	This product includes software developed by the University of
141.1Soki *	California, Lawrence Berkeley Laboratory.
151.1Soki *
161.1Soki * Redistribution and use in source and binary forms, with or without
171.1Soki * modification, are permitted provided that the following conditions
181.1Soki * are met:
191.1Soki * 1. Redistributions of source code must retain the above copyright
201.1Soki *    notice, this list of conditions and the following disclaimer.
211.1Soki * 2. Redistributions in binary form must reproduce the above copyright
221.1Soki *    notice, this list of conditions and the following disclaimer in the
231.1Soki *    documentation and/or other materials provided with the distribution.
241.2Sagc * 3. Neither the name of the University nor the names of its contributors
251.1Soki *    may be used to endorse or promote products derived from this software
261.1Soki *    without specific prior written permission.
271.1Soki *
281.1Soki * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
291.1Soki * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
301.1Soki * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
311.1Soki * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
321.1Soki * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
331.1Soki * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
341.1Soki * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
351.1Soki * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
361.1Soki * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
371.1Soki * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
381.1Soki * SUCH DAMAGE.
391.1Soki *
401.1Soki *	@(#)remote-sl.h	8.1 (Berkeley) 6/11/93
411.1Soki */
421.1Soki
431.1Soki/*
441.1Soki * These definitions are factored out into an include file so
451.1Soki * the kernel stub has access to them.
461.1Soki */
471.1Soki#define FRAME_START		0xc1		/* Frame End */
481.1Soki#define FRAME_END		0xc0		/* Frame End */
491.1Soki#define FRAME_ESCAPE		0xdb		/* Frame Esc */
501.1Soki#define TRANS_FRAME_START	0xde		/* transposed frame start */
511.1Soki#define TRANS_FRAME_END		0xdc		/* transposed frame esc */
521.1Soki#define TRANS_FRAME_ESCAPE	0xdd		/* transposed frame esc */
531.1Soki
541.1Soki/*
551.1Soki * Message limits. SL_MAXDATA is the maximum number of bytes that can
561.1Soki * be read or written. SL_BUFSIZE is the maximum amount of data that
571.1Soki * can be passed across the serial link. The actual MTU is two times
581.1Soki * the max message (since each byte might be escaped), plus the two
591.1Soki * framing bytes. We add two to the message length to account for the
601.1Soki * type byte and checksum.
611.1Soki */
621.1Soki#define SL_MAXDATA 62			/* max data that can be read */
631.1Soki#define SL_RPCSIZE (1 + SL_MAXDATA)	/* errno byte + data */
641.1Soki#define SL_MTU ((2 * (SL_RPCSIZE + 2) + 2))
65