90 lines
3.8 KiB
C
90 lines
3.8 KiB
C
/* $NetBSD: rsp.h,v 1.1 1996/02/17 18:14:50 ragge Exp $ */
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/*
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* Copyright (c) 1995 Ludd, University of Lule}, Sweden.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of
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* Lule}, Sweden and its contributors.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* The Radial Serial Protocol (RSP) that TU58 (DECtape II) uses
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* is a strange animal that is sent over serial lines.
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* Most packet types can match the struct rsp, but some can't (i.e.
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* data packets).
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* More about RSP can be read in Digital Peripherals Handbook, p. 92.
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*/
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struct rsp {
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char rsp_typ; /* Packet type */
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char rsp_sz; /* Packet size */
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char rsp_op; /* Operation */
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char rsp_mod; /* Modifier */
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char rsp_drv; /* Tape drive number */
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char rsp_sw; /* Switches */
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char rsp_xx1; /* Unused, always zero */
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char rsp_xx2; /* Unused, always zero */
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short rsp_cnt; /* Byte count to transfer */
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short rsp_blk; /* Block number */
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short rsp_sum; /* Checksum of packet */
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};
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/* Types of packets */
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#define RSP_TYP_DATA 001 /* DATA packet */
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#define RSP_TYP_COMMAND 002 /* COMMAND packet */
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#define RSP_TYP_INIT 004 /* INITIALIZE packet */
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#define RSP_TYP_BOOT 010 /* BOOTSTRAP packet (PDP11) */
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#define RSP_TYP_CONTINUE 020 /* CONTINUE packet */
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#define RSP_TYP_XOFF 023 /* XOFF packet */
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/* Operation types */
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#define RSP_OP_NOP 000 /* No operation */
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#define RSP_OP_RESET 001 /* Reset */
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#define RSP_OP_READ 002 /* Read data */
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#define RSP_OP_WRITE 003 /* Write data */
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#define RSP_OP_POS 005 /* Position tape */
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#define RSP_OP_DIAG 007 /* internal diagnose */
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#define RSP_OP_GSTAT 010 /* Get status */
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#define RSP_OP_SSTAT 011 /* Set status */
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#define RSP_OP_END 100 /* End packet */
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/* Modifier */
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#define RSP_MOD_VERIFY 001 /* Verify read data */
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#define RSP_MOD_OK 000 /* Success */
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#define RSP_MOD_RETR 001 /* Success w/ retries */
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#define RSP_MOD_FAIL -1 /* Failed self-test */
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#define RSP_MOD_PART -2 /* Partial operation */
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#define RSP_MOD_NET -8 /* Non-existent tape drive */
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#define RSP_MOD_NOC -9 /* No cartridge */
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#define RSP_MOD_WP -11 /* Write protected */
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#define RSP_MOD_DERR -17 /* Data error */
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#define RSP_MOD_SERR -32 /* Seek error */
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#define RSP_MOD_STOP -33 /* Motor stopped */
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#define RSP_MOD_INVAL -48 /* Invalid opcode */
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#define RSP_MOD_INVBLK -55 /* Invalid bloch number */
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