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/* $OpenBSD: rsp.h,v 1.2 1997/05/29 00:04:50 niklas Exp $ */
/* $NetBSD: rsp.h,v 1.1 1996/02/17 18:14:50 ragge Exp $ */
/*
* Copyright (c) 1995 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* 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 at Ludd, University of
* Lule}, Sweden and its contributors.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* The Radial Serial Protocol (RSP) that TU58 (DECtape II) uses
* is a strange animal that is sent over serial lines.
* Most packet types can match the struct rsp, but some can't (i.e.
* data packets).
* More about RSP can be read in Digital Peripherals Handbook, p. 92.
*/
struct rsp {
char rsp_typ; /* Packet type */
char rsp_sz; /* Packet size */
char rsp_op; /* Operation */
char rsp_mod; /* Modifier */
char rsp_drv; /* Tape drive number */
char rsp_sw; /* Switches */
char rsp_xx1; /* Unused, always zero */
char rsp_xx2; /* Unused, always zero */
short rsp_cnt; /* Byte count to transfer */
short rsp_blk; /* Block number */
short rsp_sum; /* Checksum of packet */
};
/* Types of packets */
#define RSP_TYP_DATA 001 /* DATA packet */
#define RSP_TYP_COMMAND 002 /* COMMAND packet */
#define RSP_TYP_INIT 004 /* INITIALIZE packet */
#define RSP_TYP_BOOT 010 /* BOOTSTRAP packet (PDP11) */
#define RSP_TYP_CONTINUE 020 /* CONTINUE packet */
#define RSP_TYP_XOFF 023 /* XOFF packet */
/* Operation types */
#define RSP_OP_NOP 000 /* No operation */
#define RSP_OP_RESET 001 /* Reset */
#define RSP_OP_READ 002 /* Read data */
#define RSP_OP_WRITE 003 /* Write data */
#define RSP_OP_POS 005 /* Position tape */
#define RSP_OP_DIAG 007 /* internal diagnose */
#define RSP_OP_GSTAT 010 /* Get status */
#define RSP_OP_SSTAT 011 /* Set status */
#define RSP_OP_END 100 /* End packet */
/* Modifier */
#define RSP_MOD_VERIFY 001 /* Verify read data */
#define RSP_MOD_OK 000 /* Success */
#define RSP_MOD_RETR 001 /* Success w/ retries */
#define RSP_MOD_FAIL -1 /* Failed self-test */
#define RSP_MOD_PART -2 /* Partial operation */
#define RSP_MOD_NET -8 /* Non-existent tape drive */
#define RSP_MOD_NOC -9 /* No cartridge */
#define RSP_MOD_WP -11 /* Write protected */
#define RSP_MOD_DERR -17 /* Data error */
#define RSP_MOD_SERR -32 /* Seek error */
#define RSP_MOD_STOP -33 /* Motor stopped */
#define RSP_MOD_INVAL -48 /* Invalid opcode */
#define RSP_MOD_INVBLK -55 /* Invalid bloch number */
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