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/* $OpenBSD: remote-sl.h,v 1.2 1997/09/21 04:21:21 niklas Exp $ */
/* $NetBSD: remote-sl.h,v 1.1 1996/06/15 14:34:35 gwr Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)remote-sl.h 8.1 (Berkeley) 6/11/93
*/
/*
* These definitions are factored out into an include file so
* the kernel stub has access to them.
*/
#define FRAME_START 0xc1 /* Frame End */
#define FRAME_END 0xc0 /* Frame End */
#define FRAME_ESCAPE 0xdb /* Frame Esc */
#define TRANS_FRAME_START 0xde /* transposed frame start */
#define TRANS_FRAME_END 0xdc /* transposed frame esc */
#define TRANS_FRAME_ESCAPE 0xdd /* transposed frame esc */
/*
* Message limits. SL_MAXDATA is the maximum number of bytes that can
* be read or written. SL_BUFSIZE is the maximum amount of data that
* can be passed across the serial link. The actual MTU is two times
* the max message (since each byte might be escaped), plus the two
* framing bytes. We add two to the message length to account for the
* type byte and checksum.
*/
#define SL_MAXDATA 62 /* max data that can be read */
#define SL_RPCSIZE (1 + SL_MAXDATA) /* errno byte + data */
#define SL_MTU ((2 * (SL_RPCSIZE + 2) + 2))
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